Bitcoin Mining Rig and How to Build it for Other Crypto
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Ultimate glossary of crypto currency terms, acronyms and abbreviations
Everyone and his grandma know what cryptocurrency mining is. Well, they may not indeed know what it actually is, in technical terms, but they have definitely heard the phrase as it is hard to miss the news about mining sucking in energy like a black hole gobbles up matter. On the other hand, staking, its little bro, has mostly been hiding in the shadows until recently. by StealthEX Today, with DeFi making breaking news across the cryptoverse, staking has become a new buzzword in the blockchain space and beyond, along with the fresh entries to the crypto asset investor’s vocabulary such as “yield farming”, “rug pull”, “total value locked”, and similar arcane stuff. If you are not scared off yet, then read on. Though we can’t promise you won’t be.
Cryptocurrency staking, little brother of crypto mining
There are two conceptually different approaches to achieving consensus in a distributed network, which comes down to transaction validation in the case of a cryptocurrency blockchain. You are most certainly aware of cryptocurrency mining, which is used with cryptocurrencies based on the Proof-of-Work (PoW) consensus algorithm such as Bitcoin and Ether (so far). Here miners compete against each other with their computational resources for finding the next block on the blockchain and getting a reward. Another approach, known as the Proof-of-Stake (PoS) consensus mechanism, is based not on the race among computational resources as is the case with PoW, but on the competition of balances, or stakes. In simple words, every holder of at least one stake, a minimally sufficient amount of crypto, can actively participate in creating blocks and thus also earn rewards under such network consensus model. This process came to be known as staking, and it can be loosely thought of as mining in the PoS environment. With that established, let’s now see why, after so many years of what comes pretty close to oblivion, it has turned into such a big thing.
Why has staking become so popular, all of a sudden?
The renewed popularity of staking came with the explosive expansion of decentralized finance, or DeFi for short. Essentially, staking is one of the ways to tap into the booming DeFi market, allowing users to earn staking rewards on a class of digital assets that DeFi provides easy access to. Technically, it is more correct to speak of DeFi staking as a new development of an old concept that enjoys its second coming today, or new birth if you please. So what’s the point? With old-school cryptocurrency staking, you would have to manually set up and run a validating node on a cryptocurrency network that uses a PoS consensus algo, having to keep in mind all the gory details of a specific protocol so as not to shoot yourself in the foot. This is where you should have already started to enjoy jitters if you were to take this avenu entirely on your own. Just think of it as having to run a Bitcoin mining rig for some pocket money. Put simply, DeFi staking frees you from all that hassle. At this point, let’s recall what decentralized finance is and what it strives to achieve. In broad terms, DeFi aims at offering the same products and services available today in the traditional financial world, but in a trutless and decentralized way. From this perspective, DeFi staking reseblems conventional banking where people put their money in savings accounts to earn interest. Indeed, you could try to lend out your shekels all by yourself, with varying degrees of success, but banks make it far more convenient and secure. The maturation of the DeFi space advanced the emergence of staking pools and Staking-as-a-Service (SaaS) providers that run nodes for PoS cryptocurrencies on your behalf, allowing you to stake your coins and receive staking rewards. In today’s world, interest rates on traditional savings accounts are ridiculous, while government spending, a handy euphemism for relentless money printing aka fiscal stimulus, is already translating into runaway inflation. Against this backdrop, it is easy to see why staking has been on the rise.
Okay, what are my investment options?
Now that we have gone through the basics of the state-of-the-art cryptocurrency staking, you may ask what are the options actually available for a common crypto enthusiast to earn from it? Many high-caliber exchanges like Binance or Bitfinex as well as online wallets such as Coinbase offer staking of PoS coins. In most cases, you don’t even need to do anything aside from simply holding your coins there to start receiving rewards as long as you are eligible and meet the requirements. This is called exchange staking. Further, there are platforms that specialize in staking digital assets. These are known as Staking-as-a-Service providers, while this form of staking is often referred to as soft staking. They enable even non-tech savvy customers to stake their PoS assets through a third party service, with all the technical stuff handled by the service provider. Most of these services are custodial, with the implication being that you no longer control your coins after you stake them. Figment Networks, MyContainer, Stake Capital are easily the most recognized among SaaS providers. However, while exchange staking and soft staking have everything to do with finance, they have little to nothing to do with the decentralized part of it, which is, for the record, the primary value proposition of the entire DeFi ecosystem. The point is, you have to deposit the stakable coins into your wallet with these services. And how can it then be considered decentralized? Nah, because DeFi is all about going trustless, no third parties, and, in a narrow sense, no staking that entails the transfer of private keys. This form of staking is called non-custodial, and it is of particular interest from the DeFi point of view. If you read our article about DeFi, you already know how it is possible, so we won’t dwell on this (if, on the off chance, you didn’t, it’s time to catch up). As DeFi continues to evolve, platforms that allow trustless staking with which you maintain full custody of your coins are set to emerge as well. The space is relatively new, with Staked being probably the first in the field. This type of staking allows you to remain in complete control of your funds, and it perfectly matches DeFi’s ethos, goals and ideals. Still, our story wouldn’t be complete if we didn’t mention utility tokens where staking may serve a whole range of purposes other than supporting the token network or obtaining passive income. For example, with platforms that deploy blockchain oracles such as Nexus Mutual, a decentralized insurance platform, staking tokens is necessary for encouraging correct reporting on certain events or reaching a consensus on a specific claim. In the case of Nexus Mutual, its membership token NXM is used by the token holders, the so-called assessors, for validating insurance claims. If they fail to assess claims correctly, their stakes are burned. Another example is Particl Marketplace, a decentralized eCommerce platform, which designed a standalone cryptocurrency dubbed PART. It can be used both as a cryptocurrency in its own right outside the marketplace and as a stakable utility token giving stakers voting rights facilitating the decentralized governance of the entire platform. Yet another example is the instant non-custodial cryptocurrency exchange service, ChangeNOW, that also recently came up with its stakable token, NOW Token, to be used as an internal currency and a means of earning passive income.
Nowadays, with most economies on pause or going downhill, staking has become a new avenue for generating passive income outside the traditional financial system. As DeFi continues to eat away at services previously being exclusively provided by conventional financial and banking sectors, we should expect more people to get involved in this activity along with more businesses dipping their toes into these uncharted waters. Achieving network consensus, establishing decentralized governance, and earning passive income are only three use cases for cryptocurrency staking. No matter how important they are, and they certainly are, there are many other uses along different dimensions that staking can be quite helpful and instrumental for. Again, we are mostly in uncharted waters here, and we can’t reliably say what the future holds for us. On the other hand, we can go and invent it. This should count as next. And remember if you need to exchange your coins StealthEX is here for you. We provide a selection of more than 250 coins and constantly updating the list so that our customers will find a suitable option. Our service does not require registration and allows you to remain anonymous. Why don’t you check it out? Just go to StealthEX and follow these easy steps: ✔ Choose the pair and the amount for your exchange. For example ETH to BTC. ✔ Press the “Start exchange” button. ✔ Provide the recipient address to which the coins will be transferred. ✔ Move your cryptocurrency for the exchange. ✔ Receive your coins! The views and opinions expressed here are solely those of the author. Every investment and trading move involves risk. You should conduct your own research when making a decision. Original article was posted onhttps://stealthex.io/blog/2020/09/08/cryptocurrency-staking-as-it-stands-today/
Technical: A Brief History of Payment Channels: from Satoshi to Lightning Network
Who cares about political tweets from some random country's president when payment channels are a much more interesting and are actually capable of carrying value? So let's have a short history of various payment channel techs!
Generation 0: Satoshi's Broken nSequence Channels
Because Satoshi's Vision included payment channels, except his implementation sucked so hard we had to go fix it and added RBF as a by-product. Originally, the plan for nSequence was that mempools would replace any transaction spending certain inputs with another transaction spending the same inputs, but only if the nSequence field of the replacement was larger. Since 0xFFFFFFFF was the highest value that nSequence could get, this would mark a transaction as "final" and not replaceable on the mempool anymore. In fact, this "nSequence channel" I will describe is the reason why we have this weird rule about nLockTime and nSequence. nLockTime actually only works if nSequence is not 0xFFFFFFFF i.e. final. If nSequence is 0xFFFFFFFF then nLockTime is ignored, because this if the "final" version of the transaction. So what you'd do would be something like this:
You go to a bar and promise the bartender to pay by the time the bar closes. Because this is the Bitcoin universe, time is measured in blockheight, so the closing time of the bar is indicated as some future blockheight.
For your first drink, you'd make a transaction paying to the bartender for that drink, paying from some coins you have. The transaction has an nLockTime equal to the closing time of the bar, and a starting nSequence of 0. You hand over the transaction and the bartender hands you your drink.
For your succeeding drink, you'd remake the same transaction, adding the payment for that drink to the transaction output that goes to the bartender (so that output keeps getting larger, by the amount of payment), and having an nSequence that is one higher than the previous one.
Eventually you have to stop drinking. It comes down to one of two possibilities:
You drink until the bar closes. Since it is now the nLockTime indicated in the transaction, the bartender is able to broadcast the latest transaction and tells the bouncers to kick you out of the bar.
You wisely consider the state of your liver. So you re-sign the last transaction with a "final" nSequence of 0xFFFFFFFF i.e. the maximum possible value it can have. This allows the bartender to get his or her funds immediately (nLockTime is ignored if nSequence is 0xFFFFFFFF), so he or she tells the bouncers to let you out of the bar.
Now that of course is a payment channel. Individual payments (purchases of alcohol, so I guess buying coffee is not in scope for payment channels). Closing is done by creating a "final" transaction that is the sum of the individual payments. Sure there's no routing and channels are unidirectional and channels have a maximum lifetime but give Satoshi a break, he was also busy inventing Bitcoin at the time. Now if you noticed I called this kind of payment channel "broken". This is because the mempool rules are not consensus rules, and cannot be validated (nothing about the mempool can be validated onchain: I sigh every time somebody proposes "let's make block size dependent on mempool size", mempool state cannot be validated by onchain data). Fullnodes can't see all of the transactions you signed, and then validate that the final one with the maximum nSequence is the one that actually is used onchain. So you can do the below:
Become friends with Jihan Wu, because he owns >51% of the mining hashrate (he totally reorged Bitcoin to reverse the Binance hack right?).
Slip Jihan Wu some of the more interesting drinks you're ordering as an incentive to cooperate with you. So say you end up ordering 100 drinks, you split it with Jihan Wu and give him 50 of the drinks.
When the bar closes, Jihan Wu quickly calls his mining rig and tells them to mine the version of your transaction with nSequence 0. You know, that first one where you pay for only one drink.
Because fullnodes cannot validate nSequence, they'll accept even the nSequence=0 version and confirm it, immutably adding you paying for a single alcoholic drink to the blockchain.
The bartender, pissed at being cheated, takes out a shotgun from under the bar and shoots at you and Jihan Wu.
Jihan Wu uses his mystical chi powers (actually the combined exhaust from all of his mining rigs) to slow down the shotgun pellets, making them hit you as softly as petals drifting in the wind.
The bartender mutters some words, clothes ripping apart as he or she (hard to believe it could be a she but hey) turns into a bear, ready to maul you for cheating him or her of the payment for all the 100 drinks you ordered from him or her.
Steely-eyed, you stand in front of the bartender-turned-bear, daring him to touch you. You've watched Revenant, you know Leonardo di Caprio could survive a bear mauling, and if some posh actor can survive that, you know you can too. You make a pose. "Drunken troll logic attack!"
I think I got sidetracked here.
Bears are bad news.
You can't reasonably invoke "Satoshi's Vision" and simultaneously reject the Lightning Network because it's not onchain. Satoshi's Vision included a half-assed implementation of payment channels with nSequence, where the onchain transaction represented multiple logical payments, exactly what modern offchain techniques do (except modern offchain techniques actually work). nSequence (the field, but not its modern meaning) has been in Bitcoin since BitCoin For Windows Alpha 0.1.0. And its original intent was payment channels. You can't get nearer to Satoshi's Vision than being a field that Satoshi personally added to transactions on the very first public release of the BitCoin software, like srsly.
Miners can totally bypass mempool rules. In fact, the reason why nSequence has been repurposed to indicate "optional" replace-by-fee is because miners are already incentivized by the nSequence system to always follow replace-by-fee anyway. I mean, what do you think those drinks you passed to Jihan Wu are, other than the fee you pay him to mine a specific version of your transaction?
Satoshi made mistakes. The original design for nSequence is one of them. Today, we no longer use nSequence in this way. So diverging from Satoshi's original design is part and parcel of Bitcoin development, because over time, we learn new lessons that Satoshi never knew about. Satoshi was an important landmark in this technology. He will not be the last, or most important, that we will remember in the future: he will only be the first.
Incentive-compatible time-limited unidirectional channel; or, Satoshi's Vision, Fixed (if transaction malleability hadn't been a problem, that is). Now, we know the bartender will turn into a bear and maul you if you try to cheat the payment channel, and now that we've revealed you're good friends with Jihan Wu, the bartender will no longer accept a payment channel scheme that lets one you cooperate with a miner to cheat the bartender. Fortunately, Jeremy Spilman proposed a better way that would not let you cheat the bartender. First, you and the bartender perform this ritual:
You get some funds and create a transaction that pays to a 2-of-2 multisig between you and the bartender. You don't broadcast this yet: you just sign it and get its txid.
You create another transaction that spends the above transaction. This transaction (the "backoff") has an nLockTime equal to the closing time of the bar, plus one block. You sign it and give this backoff transaction (but not the above transaction) to the bartender.
The bartender signs the backoff and gives it back to you. It is now valid since it's spending a 2-of-2 of you and the bartender, and both of you have signed the backoff transaction.
Now you broadcast the first transaction onchain. You and the bartender wait for it to be deeply confirmed, then you can start ordering.
The above is probably vaguely familiar to LN users. It's the funding process of payment channels! The first transaction, the one that pays to a 2-of-2 multisig, is the funding transaction that backs the payment channel funds. So now you start ordering in this way:
For your first drink, you create a transaction spending the funding transaction output and sending the price of the drink to the bartender, with the rest returning to you.
You sign the transaction and pass it to the bartender, who serves your first drink.
For your succeeding drinks, you recreate the same transaction, adding the price of the new drink to the sum that goes to the bartender and reducing the money returned to you. You sign the transaction and give it to the bartender, who serves you your next drink.
At the end:
If the bar closing time is reached, the bartender signs the latest transaction, completing the needed 2-of-2 signatures and broadcasting this to the Bitcoin network. Since the backoff transaction is the closing time + 1, it can't get used at closing time.
If you decide you want to leave early because your liver is crying, you just tell the bartender to go ahead and close the channel (which the bartender can do at any time by just signing and broadcasting the latest transaction: the bartender won't do that because he or she is hoping you'll stay and drink more).
If you ended up just hanging around the bar and never ordering, then at closing time + 1 you broadcast the backoff transaction and get your funds back in full.
Now, even if you pass 50 drinks to Jihan Wu, you can't give him the first transaction (the one which pays for only one drink) and ask him to mine it: it's spending a 2-of-2 and the copy you have only contains your own signature. You need the bartender's signature to make it valid, but he or she sure as hell isn't going to cooperate in something that would lose him or her money, so a signature from the bartender validating old state where he or she gets paid less isn't going to happen. So, problem solved, right? Right? Okay, let's try it. So you get your funds, put them in a funding tx, get the backoff tx, confirm the funding tx... Once the funding transaction confirms deeply, the bartender laughs uproariously. He or she summons the bouncers, who surround you menacingly. "I'm refusing service to you," the bartender says. "Fine," you say. "I was leaving anyway;" You smirk. "I'll get back my money with the backoff transaction, and posting about your poor service on reddit so you get negative karma, so there!" "Not so fast," the bartender says. His or her voice chills your bones. It looks like your exploitation of the Satoshi nSequence payment channel is still fresh in his or her mind. "Look at the txid of the funding transaction that got confirmed." "What about it?" you ask nonchalantly, as you flip open your desktop computer and open a reputable blockchain explorer. What you see shocks you. "What the --- the txid is different! You--- you changed my signature?? But how? I put the only copy of my private key in a sealed envelope in a cast-iron box inside a safe buried in the Gobi desert protected by a clan of nomads who have dedicated their lives and their childrens' lives to keeping my private key safe in perpetuity!" "Didn't you know?" the bartender asks. "The components of the signature are just very large numbers. The sign of one of the signature components can be changed, from positive to negative, or negative to positive, and the signature will remain valid. Anyone can do that, even if they don't know the private key. But because Bitcoin includes the signatures in the transaction when it's generating the txid, this little change also changes the txid." He or she chuckles. "They say they'll fix it by separating the signatures from the transaction body. They're saying that these kinds of signature malleability won't affect transaction ids anymore after they do this, but I bet I can get my good friend Jihan Wu to delay this 'SepSig' plan for a good while yet. Friendly guy, this Jihan Wu, it turns out all I had to do was slip him 51 drinks and he was willing to mine a tx with the signature signs flipped." His or her grin widens. "I'm afraid your backoff transaction won't work anymore, since it spends a txid that is not existent and will never be confirmed. So here's the deal. You pay me 99% of the funds in the funding transaction, in exchange for me signing the transaction that spends with the txid that you see onchain. Refuse, and you lose 100% of the funds and every other HODLer, including me, benefits from the reduction in coin supply. Accept, and you get to keep 1%. I lose nothing if you refuse, so I won't care if you do, but consider the difference of getting zilch vs. getting 1% of your funds." His or her eyes glow. "GENUFLECT RIGHT NOW." Lesson learned?
Payback's a bitch.
Transaction malleability is a bitchier bitch. It's why we needed to fix the bug in SegWit. Sure, MtGox claimed they were attacked this way because someone kept messing with their transaction signatures and thus they lost track of where their funds went, but really, the bigger impetus for fixing transaction malleability was to support payment channels.
Yes, including the signatures in the hash that ultimately defines the txid was a mistake. Satoshi made a lot of those. So we're just reiterating the lesson "Satoshi was not an infinite being of infinite wisdom" here. Satoshi just gets a pass because of how awesome Bitcoin is.
CLTV-protected Spilman Channels
Using CLTV for the backoff branch. This variation is simply Spilman channels, but with the backoff transaction replaced with a backoff branch in the SCRIPT you pay to. It only became possible after OP_CHECKLOCKTIMEVERIFY (CLTV) was enabled in 2015. Now as we saw in the Spilman Channels discussion, transaction malleability means that any pre-signed offchain transaction can easily be invalidated by flipping the sign of the signature of the funding transaction while the funding transaction is not yet confirmed. This can be avoided by simply putting any special requirements into an explicit branch of the Bitcoin SCRIPT. Now, the backoff branch is supposed to create a maximum lifetime for the payment channel, and prior to the introduction of OP_CHECKLOCKTIMEVERIFY this could only be done by having a pre-signed nLockTime transaction. With CLTV, however, we can now make the branches explicit in the SCRIPT that the funding transaction pays to. Instead of paying to a 2-of-2 in order to set up the funding transaction, you pay to a SCRIPT which is basically "2-of-2, OR this singlesig after a specified lock time". With this, there is no backoff transaction that is pre-signed and which refers to a specific txid. Instead, you can create the backoff transaction later, using whatever txid the funding transaction ends up being confirmed under. Since the funding transaction is immutable once confirmed, it is no longer possible to change the txid afterwards.
Todd Micropayment Networks
The old hub-spoke model (that isn't how LN today actually works). One of the more direct predecessors of the Lightning Network was the hub-spoke model discussed by Peter Todd. In this model, instead of payers directly having channels to payees, payers and payees connect to a central hub server. This allows any payer to pay any payee, using the same channel for every payee on the hub. Similarly, this allows any payee to receive from any payer, using the same channel. Remember from the above Spilman example? When you open a channel to the bartender, you have to wait around for the funding tx to confirm. This will take an hour at best. Now consider that you have to make channels for everyone you want to pay to. That's not very scalable. So the Todd hub-spoke model has a central "clearing house" that transport money from payers to payees. The "Moonbeam" project takes this model. Of course, this reveals to the hub who the payer and payee are, and thus the hub can potentially censor transactions. Generally, though, it was considered that a hub would more efficiently censor by just not maintaining a channel with the payer or payee that it wants to censor (since the money it owned in the channel would just be locked uselessly if the hub won't process payments to/from the censored user). In any case, the ability of the central hub to monitor payments means that it can surveill the payer and payee, and then sell this private transactional data to third parties. This loss of privacy would be intolerable today. Peter Todd also proposed that there might be multiple hubs that could transport funds to each other on behalf of their users, providing somewhat better privacy. Another point of note is that at the time such networks were proposed, only unidirectional (Spilman) channels were available. Thus, while one could be a payer, or payee, you would have to use separate channels for your income versus for your spending. Worse, if you wanted to transfer money from your income channel to your spending channel, you had to close both and reshuffle the money between them, both onchain activities.
Poon-Dryja Lightning Network
Bidirectional two-participant channels. The Poon-Dryja channel mechanism has two important properties:
No time limit.
Both the original Satoshi and the two Spilman variants are unidirectional: there is a payer and a payee, and if the payee wants to do a refund, or wants to pay for a different service or product the payer is providing, then they can't use the same unidirectional channel. The Poon-Dryjam mechanism allows channels, however, to be bidirectional instead: you are not a payer or a payee on the channel, you can receive or send at any time as long as both you and the channel counterparty are online. Further, unlike either of the Spilman variants, there is no time limit for the lifetime of a channel. Instead, you can keep the channel open for as long as you want. Both properties, together, form a very powerful scaling property that I believe most people have not appreciated. With unidirectional channels, as mentioned before, if you both earn and spend over the same network of payment channels, you would have separate channels for earning and spending. You would then need to perform onchain operations to "reverse" the directions of your channels periodically. Secondly, since Spilman channels have a fixed lifetime, even if you never used either channel, you would have to periodically "refresh" it by closing it and reopening. With bidirectional, indefinite-lifetime channels, you may instead open some channels when you first begin managing your own money, then close them only after your lawyers have executed your last will and testament on how the money in your channels get divided up to your heirs: that's just two onchain transactions in your entire lifetime. That is the potentially very powerful scaling property that bidirectional, indefinite-lifetime channels allow. I won't discuss the transaction structure needed for Poon-Dryja bidirectional channels --- it's complicated and you can easily get explanations with cute graphics elsewhere. There is a weakness of Poon-Dryja that people tend to gloss over (because it was fixed very well by RustyReddit):
You have to store all the revocation keys of a channel. This implies you are storing 1 revocation key for every channel update, so if you perform millions of updates over your entire lifetime, you'd be storing several megabytes of keys, for only a single channel. RustyReddit fixed this by requiring that the revocation keys be generated from a "Seed" revocation key, and every key is just the application of SHA256 on that key, repeatedly. For example, suppose I tell you that my first revocation key is SHA256(SHA256(seed)). You can store that in O(1) space. Then for the next revocation, I tell you SHA256(seed). From SHA256(key), you yourself can compute SHA256(SHA256(seed)) (i.e. the previous revocation key). So you can remember just the most recent revocation key, and from there you'd be able to compute every previous revocation key. When you start a channel, you perform SHA256 on your seed for several million times, then use the result as the first revocation key, removing one layer of SHA256 for every revocation key you need to generate. RustyReddit not only came up with this, but also suggested an efficient O(log n) storage structure, the shachain, so that you can quickly look up any revocation key in the past in case of a breach. People no longer really talk about this O(n) revocation storage problem anymore because it was solved very very well by this mechanism.
Another thing I want to emphasize is that while the Lightning Network paper and many of the earlier presentations developed from the old Peter Todd hub-and-spoke model, the modern Lightning Network takes the logical conclusion of removing a strict separation between "hubs" and "spokes". Any node on the Lightning Network can very well work as a hub for any other node. Thus, while you might operate as "mostly a payer", "mostly a forwarding node", "mostly a payee", you still end up being at least partially a forwarding node ("hub") on the network, at least part of the time. This greatly reduces the problems of privacy inherent in having only a few hub nodes: forwarding nodes cannot get significantly useful data from the payments passing through them, because the distance between the payer and the payee can be so large that it would be likely that the ultimate payer and the ultimate payee could be anyone on the Lightning Network. Lessons learned?
We can decentralize if we try hard enough!
"Hubs bad" can be made "hubs good" if everybody is a hub.
Smart people can solve problems. It's kinda why they're smart.
After LN, there's also the Decker-Wattenhofer Duplex Micropayment Channels (DMC). This post is long enough as-is, LOL. But for now, it uses a novel "decrementing nSequence channel", using the new relative-timelock semantics of nSequence (not the broken one originally by Satoshi). It actually uses multiple such "decrementing nSequence" constructs, terminating in a pair of Spilman channels, one in both directions (thus "duplex"). Maybe I'll discuss it some other time. The realization that channel constructions could actually hold more channel constructions inside them (the way the Decker-Wattenhofer puts a pair of Spilman channels inside a series of "decrementing nSequence channels") lead to the further thought behind Burchert-Decker-Wattenhofer channel factories. Basically, you could host multiple two-participant channel constructs inside a larger multiparticipant "channel" construct (i.e. host multiple channels inside a factory). Further, we have the Decker-Russell-Osuntokun or "eltoo" construction. I'd argue that this is "nSequence done right". I'll write more about this later, because this post is long enough. Lessons learned?
Bitcoin offchain scaling is more powerful than you ever thought.
You made it! :) First up, SORRY! This has been a late post, I have my reasons don't question them (if you must know I'll be posting in the discord - one time only haha). Secondly, I am sure you can agree with me when I say "Wow!" What an incredible week it has been. Last week I thought it was going to take a couple more weeks for more moving price action when it had only taken a few days which has seen Bitcoin reach and pass the $10,000 region. We have also seen the total Market cap for cryptocurrencies increase from about 280B to over 300B (308B at time of writing) within just a few days. A huge injection of liquidity, about 40B, into the market and just to name a few of the best rises in the top 20 (on Coinmarketcap.com), the price of ETH BTC ADA have given good performances/positive responses (With this I will start adding screenshots at the end of each week for timestamp purposes). This may be a combination from Binance, Mastercard, Paypal, Grayscale investments, VISA AND the DEFI sector. Let me explain... Last week we read about Binance integrating with the company Swipe (SXP) to issue there own debit card expanding the use and reach of cryptocurrency to 31 countries within Europe. Binance's Q2 scheduled token burn of $60.5 Million, this figure correlates with its exchange, margin and futures trading platforms where approximately 20% of profits get burned to increase the price of BNB token (careful as the price has been steady after the burn). This week we find out Mastercard's expansion into the Cryptosphere as they expand and integrate with the Wirex team to issue a Mastercard-backed Bitcoin debit card, thus further extending the reach of cryptocurrency availability internationally. "The cryptocurrency market continues to mature and Mastercard is driving it forward, creating safe and secure experiences for consumers and businesses in today’s digital economy " "...Our work with Wirex and the wider crypto ecosystem is accelerating innovation and empowering consumers with more choice in the way they pay" Mastercard is also reaching out to other emerging cryptocurrency firms to apply to become principal members [Partners] with Mastercard as they have relaxed their digital assets program and look to expand into the Digital Assets and Blockchain environment. Paypals expression of interest in cryptocurrency facilitiation may bear fruits as it is said Paypal has partnered up with stablecoin operator Paxos (who is already in partnership with Revolut in the US) to facilitate trading through a cryptocurrency brokerage which will enable other firms to integrate cryptocurrency trading functionalities with them. In my opinion this looks much more promising than the Libra association they pulled out from last October as regulations. Grayscale Investments clears regulatory hurdle as they have been given the green light for its Bitcoin Cash Trust (BCHG) and Litecoin Trust (LTCN) to be quoted in over-the-counter (OTC) markets by US Financial Industry Regulatory Authority (FINRA). “The Trusts are open-ended trusts sponsored by Grayscale and are intended to enable exposure to the price movement of the Trusts’ underlying assets through a traditional investment vehicle, avoiding the challenges of buying, storing, and safekeeping digital Bitcoin Cash or Litecoin directly.” More green lights for Cryptocurrency in the US as regulators allow banks to provide cryptocurrency custody services (which may go further than just custody services). A little bit strange as it seems unnecessary and undermines one of the key factors and uses of cryptocurrency which is to be in complete control of your own finances... On another outlook this may be bullish as it allows US banks to provide banking services directly to lawful cryptocurrency businesses and show support for Bitcoin. Visa shows support stating they have a roadmap for their further expansion into the Crypto sphere. Already working with Crypto platform Coinbase and Fold they have stated they recognise the role of digital assets in the future of money. To be frank, it appears to be focused on stable coins, cost effectiveness and transaction speeds. However they are expanding their support for crypto assets. AND MOST IMPORTANTLY, DeFI! Our very own growing section in crypto. Just like the 2017 ICO boom we are seeing exorbitant growth and FOMO into the Decentralised Finance sector (WBTC, Stablecoins, Yield farming, DEXs etc). The amount of active addresses on Ethereum has doubled but with the FOMO on their network have sky rocketed their fees! Large use-cases of stable coins such as USDT ($6B in circulation using ERC-20 standard), DAI, TUSD, and PAX. $114M Wrapped Bitcoin (WBTC) on their network acts as a fluid side chain for Bitcoin and DEX trade volume has touched $1.6B this month. With all this action happening on Ethereum I saw the 24HR volume surpass BTC briefly on Worldcoinindex.com In other news, Bitcoin has been set as a new precedent in a US federal court in a case against Larry Dean Harmon, the operator of an underground trading platform Helix. Bitcoin has now legally been ruled as a form of money. “After examination of the relevant statutes, case law, and other sources, the Court concludes that bitcoin is money under the MTA and that Helix, as described in the indictment, was an `unlicensed money transmitting business´ under applicable federal law.” Quick news in China/Asia as floods threaten miners and the most dominant ASIC Bitcoin mining rig manufacturer Bitmain loses 10,000 Antminers worth millions alledgedly goes missing or "illegally transfered" with ongoing leadership dispute between cofounders. Last but not least, Cardano (ADA) upgrade Shelley is ready to launch! Hardfork is initiated as final countdown clock is switched on. At time of writing the point of no return has been reached, stress tests done and confirmation Hardfork is coming 29/07 The Shelley Mainnet upgrade is a step toward fast, capable and decentralised crypto that can serve billions of people. With the Shelley Mainnet is ADA staking rewards and pools! Here is a chance for us Gravychainers to set up a small pool of our own. Small percentage of profits going into the development of the community, and you keep the rest! If you read all of my ramblings thanks heaps! I appreciate it! I have added an extra piece of reading called speculation. Most you can speculate on by just reading the headline some others have more depth to them. Another post next week for a weekly round up! Where do you think the market is going? What is in your portfolio? Let us know in the Gravychain Discord Channel See you soon!
🍕 Bring some virtual pizza to share 🍕 Come have a chat, stimulate a discussion, ask a question or share some knowledge. We are all friendly crypto enthusiasts up for a chat, supportive and want to help each other with knowledge and investments! Big thanks to our Telegram and My Crypto HQ for the constant news updates!
P.S. Dr Seuss collectables on the blockchain HECK YEAH! and Bitcoin enters NASCAR, remember when Doge did this? it was like when Doge was trending on TikTok. ... Oh yeah did I also mention Steve Wozniak is suing Youtube, Google over rampant Bitcoin scams. Wait, what? Sydney based law firm JPB Liberty is suing Google, Facebook and Twitter for up to $300B. Just another day in the Cryptosphere.
Retailers Around The World That Accept Crypto, From Pizza to Travel
News by Cointelegraph: Jinia Shawdagor Earlier on, when Bitcoin (BTC) arrived on the scene, most cryptocurrency enthusiasts held on to their coins, as there were only so many places they could be spent. Nowadays, the list of marketplaces and retailers accepting Bitcoin and other cryptocurrencies is significantly larger, providing crypto enthusiasts with more options for making real-world purchases. After all, with recognizable organizations like Microsoft and Wikipedia now accepting Bitcoin as payment, conversations about Bitcoin and the power of cryptocurrencies are becoming more prominent. Currently, several fast-food restaurants and coffee shops have started accepting Bitcoin as payment. This will likely provide traction for mass adoption as cryptocurrency payments become increasingly commonplace in day-to-day purchases. Granted, there are some jurisdictions that do not consider Bitcoin or any other cryptocurrency as legal tender. Despite this set back, even big tech companies like Facebook are coming up with payment systems that mimic cryptocurrencies. Here are some of the leading retailers, merchants and companies that will let you book flights and hotels, buy coffee or pizza, or even go to space with crypto.
Pay for a burger in Germany with crypto
The German branch of fast-food restaurant chain Burger King now claims to accept Bitcoin as payment for its online orders and deliveries, but this is not the first time Burger King has warmed up to Bitcoin as a form of payment. The company, headquartered in Florida in the United States, had its Russian branch announce in 2017 that it would start accepting Bitcoin payments, but it ultimately did not take off. The global fast-food retailer reports an annual revenue of about $20 billion and serves about 11 million customers around the world. If all its outlets move to accept Bitcoin as payment, cryptocurrency adoption would inevitably spread.
Spend crypto at Starbucks and other places
For crypto payments to gain traction, merchants need to implement systems that enable swift and easy cryptocurrency spending. Starbucks is one of the companies taking advantage of this concept through Flexa, a U.S.-based payment startup that is helping the cafe giant, as well as dozens of other companies, accept cryptocurrency payments. The company developed an app called Spedn that enables crypto holders to make purchases with merchants like Starbucks. The company’s CEO believes that by making cryptocurrencies spendable in the mainstream, commerce will realize the full benefit of blockchain technology all over the world. Crypto enthusiasts in Silicon Valley’s Palo Alto might already be familiar with Coupa Cafe for other reasons apart from its coffee and food. Through its partnership with a Facebook software developer, Coupa Cafe has been accepting Bitcoin as payment since 2013. Reports show that the cafe received a steady stream of Bitcoin revenue as soon as they started implementing crypto payments — a clear sign of how eager its customers were to pay in Bitcoin. Coupa Cafe is among the few physical businesses in Palo Alto that accept Bitcoin at the moment. The cafe owners believe that their collaboration with the Facebook software engineer will create more traction in terms of Bitcoin adoption.
Buy food with crypto
With over 50,000 takeaway restaurants listed on its United Kingdom-based site, OrderTakeaways is one of the surest ways to get a pizza paid for with crypto delivered to your doorstep. The company has been accepting Bitcoin payments for online takeout orders since 2018. And other similar services include the Korean platform Shuttledelivery as well as German-based service Lieferando and its subsidiaries in several other countries. Apart from online orders, crypto can also be spent at a regular Subway restaurants. As early as 2013, several Subway branches started accepting Bitcoin as payment. Now, for a fraction of a Bitcoin, a Subway sandwich can be purchased at select restaurants.
Pay with Bitcoin to tour space
Besides buying food and inexpensive, day-to-day items with crypto, a trip to space can now be bought with Bitcoin. That’s right. Richard Branson’s space tourism company, Virgin Galactic, started accepting Bitcoin as payment as far back as 2013. Although Branson’s predicted date for the first commercial flight has been pushed back several times, the company achieved its first suborbital space flight last year. Perhaps soon, people will be able to tour the moon on crypto’s dime.
Buy jewelry with Bitcoin
A brick-and-mortar American jewelry company called Reeds Jewelers accepts Bitcoin for both its physical and online stores. What’s more, if a purchase is worth more than $25,000, the company provides free armored delivery for safety. Other jewelry companies accepting Bitcoin include Blue Nile Jewelry, Stephen Silver Fine Jewelry and Coaex Jewelry, to name a few. A big advantage of purchasing large ticket items — like a diamond — with crypto is that it makes moving around large amounts of money cheap and effortless. Reports show that more Silicon Valley investors are buying jewelry with Bitcoin. Last year, Stephen Silver Fine Jewelry reported a 20% growth in crypto transactions, leading to a boost in the company’s sales. The company has been accepting Bitcoin since 2014.
Send and redeem gift cards with Bitcoin
Gyft, a digital platform that allows users to buy, send and redeem gift cards, was one of the first merchants enabling cryptocurrency adoption to gain traction in the real world. The mobile gift card app allows Bitcoin to be used to purchase gift cards from several retailers, some of which include Burger King, Subway, Amazon and Starbucks. The company has also partnered with popular crypto exchange Coinbase to enable users to buy gift cards from their Coinbase wallets.
Travel and pay in Bitcoin
If a traveler only has Bitcoin at their disposal, the following merchants will gladly offer services in exchange for it. TravelbyBit, a flight and hotel booking service, accepts cryptocurrencies like Bitcoin, Binance Coin and Litecoin (LTC) as payment. With a network of over 300 crypto-friendly merchants, the platform is one of the biggest supporters of crypto adoption. TravelbyBit can also alert you to upcoming blockchain events in order to interact with other crypto enthusiasts from around the globe. Other platforms to book flights with crypto include Destinia, CheapBizClass, CheapAir, AirBaltic, Bitcoin.Travel and ABitSky, among others.
Use crypto to book a five-star hotel in Zurich
If ever one finds themselves traveling to Zurich Switzerland, either BTC or Ether (ETH) can be used to pay for a stay in a five-star hotel in Zurich. In May 2019, five-star hotel and spa Dodler Grand announced that it will start accepting Bitcoin and Ether as payment. The hotel has partnered with a fintech firm Inacta as well as Bity (a Swiss-based crypto exchange) to facilitate the payment and conversion of crypto to fiat money. The hotel boasts an amazing view of the Swiss landscape among other enticing amenities that come with a five-star hotel.
Pay for electronics and more with crypto
For all the gadget lovers, there are a bunch of platforms that allow electronic purchases with cryptocurrency. Newegg, for instance, is an electronic retail giant that uses BitPay to process payments made with digital currencies. Even though one cannot get refunds for Bitcoin purchases, Newegg has a good reputation for quality items. Plus, the company boasts its being among the first merchants to support cryptocurrency adoption. Other platforms for gadget junkies include Eyeboot (a platform that sells crypto mining rigs in exchange for crypto), Microsoft, FastTech and Alza (a U.K.-based online store that sells phones and beauty products).
An ever-expanding list
It seems clear that more retailers are warming up to the idea of accepting cryptocurrencies. There is still a long way to go before full adoption can be achieved, but many companies have nevertheless benefited from being early adopters. Despite the volatile price movements of cryptocurrencies, all evidence points to a future cashless society that uses digital currencies, and crypto is leading the way.
The biggest announcement of the month was the new kind of decentralized exchange proposed by @jy-p of Company 0. The Community Discussions section considers the stakeholders' response. dcrd: Peer management and connectivity improvements. Some work for improved sighash algo. A new optimization that gives 3-4x faster serving of headers, which is great for SPV. This was another step towards multipeer parallel downloads – check this issue for a clear overview of progress and planned work for next months (and some engineering delight). As usual, codebase cleanup, improvements to error handling, test infrastructure and test coverage. Decrediton: work towards watching only wallets, lots of bugfixes and visual design improvements. Preliminary work to integrate SPV has begun. Politeia is live on testnet! Useful links: announcement, introduction, command line voting example, example proposal with some votes, mini-guide how to compose a proposal. Trezor: Decred appeared in the firmware update and on Trezor website, currently for testnet only. Next steps are mainnet support and integration in wallets. For the progress of Decrediton support you can track this meta issue. dcrdata: Continued work on Insight API support, see this meta issue for progress overview. It is important for integrations due to its popularity. Ongoing work to add charts. A big database change to improve sorting on the Address page was merged and bumped version to 3.0. Work to visualize agenda voting continues. Ticket splitting: 11-way ticket split from last month has voted (transaction). Ethereum support in atomicswap is progressing and welcomes more eyeballs. decred.org: revamped Press page with dozens of added articles, and a shiny new Roadmap page. decredinfo.com: a new Decred dashboard by lte13. Reddit announcement here. Dev activity stats for June: 245 active PRs, 184 master commits, 25,973 added and 13,575 deleted lines spread across 8 repositories. Contributions came from 2 to 10 developers per repository. (chart)
Hashrate: growth continues, the month started at 15 and ended at 44 PH/s with some wild 30% swings on the way. The peak was 53.9 PH/s. F2Pool was the leader varying between 36% and 59% hashrate, followed by coinmine.pl holding between 18% and 29%. In response to concerns about its hashrate share, F2Pool made a statement that they will consider measures like rising the fees to prevent growing to 51%. Staking: 30-day average ticket price is 94.7 DCR (+3.4). The price was steadily rising from 90.7 to 95.8 peaking at 98.1. Locked DCR grew from 3.68 to 3.81 million DCR, the highest value was 3.83 million corresponding to 47.87% of supply (+0.7% from previous peak). Nodes: there are 240 public listening and 115 normal nodes per dcred.eu. Version distribution: 57% on v1.2.0 (+12%), 25% on v1.1.2 (-13%), 14% on v1.1.0 (-1%). Note: the reported count of non-listening nodes has dropped significantly due to data reset at decred.eu. It will take some time before the crawler collects more data. On top of that, there is no way to exactly count non-listening nodes. To illustrate, an alternative data source, charts.dcr.farm showed 690 reachable nodes on Jul 1. Extraordinary event: 247361 and 247362 were two nearly full blocks. Normally blocks are 10-20 KiB, but these blocks were 374 KiB (max is 384 KiB).
Update from Obelisk: shipping is expected in first half of July and there is non-zero chance to meet hashrate target. Another Chinese ASIC spotted on the web: Flying Fish D18 with 340 GH/s at 180 W costing 2,200 CNY (~340 USD). (asicok.com – translated, also on asicminervalue) dcrASIC team posted a farewell letter. Despite having an awesome 16 nm chip design, they decided to stop the project citing the saturated mining ecosystem and low profitability for their potential customers.
Changenow announced the option to buy DCR with fiat.
TokenPride: "We are seeking feedback on the general setup of our payment processor. We have tried to make it simple and user friendly. 10% of all purchases made in Decred will be donated to the Decred Development fund - and we will be releasing original Decred designs in the future".
BlueYard Capital announced investment in Decred and the intent to be long term supporters and to actively participate in the network's governance. In an overview post they stressed core values of the project:
There are a few other remarkable characteristics that are a testament to the DNA of the team behind Decred: there was no sale of DCR to investors, no venture funding, and no payment to exchanges to be listed – underscoring that the Decred team and contributors are all about doing the right thing for long term (as manifested in their constitution for the project). The most encouraging thing we can see is both the quality and quantity of high calibre developers flocking to the project, in addition to a vibrant community attaching their identity to the project.
The company will be hosting an event in Berlin, see Events below. Arbitrade is now mining Decred.
Campus Party in Brasilia, Brazil. @girino, @Rhama and @matheusd talked about Decred. Matheus was interviewed by a TV channel. Check this quick report about the event, click "Show newer" to continue reading. (photos: 123)
Blockchain Summit in London, UK. This was not a full blown presence with stand but rather investigation of opportunities by @kyle and @Ani. The resulting detailed report is a good example of a document advising to stakeholders whether it is worth spending project funds.
Meetup in Berlin, Germany on July 18. @jz will give a talk and Q&A about Decred and chat with Ele from @oscoin about incentivizing developers. Hosted by BlueYard Capital.
Hey guys! I'd like to share with you my latest adventure: Stakey Club, hosted at stakey.club, is a website dedicated to Decred. I posted a few articles in Brazilian Portuguese and in English. I also translated to Portuguese some posts from the Decred Blog. I hope you like it! (slack)
Decred Assembly - Ep20 - Governance: Driving the Future (youtube) @cburniske and @traceagain discuss the importance of governance protocols being foundational and problems with delegated proof of stake
"I think that developers in the future are going to base their decision on where to build on the basis of governance and community. And so I look for good governance mechanisms and strong communities in blockchains." (@decredproject)
What is on-chain cryptocurrency governance? Is it plutocratic? by Richard Red (medium)
Apples to apples, Decred is 20x more expensive to attack than Bitcoin by Zubair Zia (medium)
What makes Decred different and better from other cryptocurrencies? (cxihub.com)
Community stats: Twitter followers 40,209 (+1,091), Reddit subscribers 8,410 (+243), Slack users 5,830 (+172), GitHub 392 stars and 918 forks of dcrd repository. An update on our communication systems:
Matrix chat logs are nowviewable on the web with the exception of some channels that are not bridged. The new web logs means our chats are now fully public and indexed by search engines.
Slack had an outage on Jun 27 that disturbed communications for a few hours, discussions continued on Decred's bridged platforms.
Jake Yocom-Piatt did an AMA on CryptoTechnology, a forum for serious crypto tech discussion. Some topics covered were Decred attack cost and resistance, voting policies, smart contracts, SPV security, DAO and DPoS. A new kind of DEX was the subject of an extensive discussion in #general, #random, #trading channels as well as Reddit. New channel #thedex was created and attracted more than 100 people. A frequent and fair question is how the DEX would benefit Decred. @lukebp has put it well:
Projects like these help Decred attract talent. Typically, the people that are the best at what they do aren’t driven solely by money. They want to work on interesting projects that they believe in with other talented individuals. Launching a DEX that has no trading fees, no requirement to buy a 3rd party token (including Decred), and that cuts out all middlemen is a clear demonstration of the ethos that Decred was founded on. It helps us get our name out there and attract the type of people that believe in the same mission that we do. (slack)
Another concern that it will slow down other projects was addressed by @davecgh:
The intent is for an external team to take up the mantle and build it, so it won't have any bearing on the current c0 roadmap. The important thing to keep in mind is that the goal of Decred is to have a bunch of independent teams on working on different things. (slack)
A chat about Decred fork resistance started on Twitter and continued in #trading. Community members continue to discuss the finer points of Decred's hybrid system, bringing new users up to speed and answering their questions. The key takeaway from this chat is that the Decred chain is impossible to advance without votes, and to get around that the forker needs to change the protocol in a way that would make it clearly not Decred. "Against community governance" article was discussed on Reddit and #governance. "The Downside of Democracy (and What it Means for Blockchain Governance)" was another article arguing against on-chain governance, discussed here. Reddit recap: mining rig shops discussion; how centralized is Politeia; controversial debate on photos of models that yielded useful discussion on our marketing approach; analysis of a drop in number of transactions; concerns regarding project bus factor, removing central authorities, advertising and full node count – received detailed responses; an argument by insette for maximizing aggregate tx fees; coordinating network upgrades; a new "Why Decred?" thread; a question about quantum resistance with a detailed answer and a recap of current status of quantum resistant algorithms. Chats recap: Programmatic Proof-of-Work (ProgPoW) discussion; possible hashrate of Blake-256 miners is at least ~30% higher than SHA-256d; how Decred is not vulnerable to SPV leaf/node attack.
DCR opened the month at ~$93, reached monthly high of $110, gradually dropped to the low of $58 and closed at $67. In BTC terms it was 0.0125 -> 0.0150 -> 0.0098 -> 0.0105. The downturn coincided with a global decline across the whole crypto market. In the middle of the month Decred was noticed to be #1 in onchainfx "% down from ATH" chart and on this chart by @CoinzTrader. Towards the end of the month it dropped to #3.
Please note: we will not accept any kind of payment to list an asset.
Bithumb got hacked with a $30 m loss. Zcash organized Zcon0, an event in Canada that focused on privacy tech and governance. An interesting insight from Keynote Panel on governance: "There is no such thing as on-chain governance". Microsoft acquired GitHub. There was some debate about whether it is a reason to look into alternative solutions like GitLab right now. It is always a good idea to have a local copy of Decred source code, just in case. Status update from @sumiflow on correcting DCR supply on various sites:
To begin with, none of the below sites were showing the correct supply or market cap for Decred but we've made some progress. coingecko.com, coinlib.io, cryptocompare.com, livecoinwatch.com, worldcoinindex.com - corrected! cryptoindex.co, onchainfx.com - awaiting fix coinmarketcap.com - refused to fix because devs have coins too? (slack)
About This Issue
This is the third issue of Decred Journal after April and May. Most information from third parties is relayed directly from source after a minimal sanity check. The authors of Decred Journal have no ability to verify all claims. Please beware of scams and do your own research. The new public Matrix logs look promising and we hope to transition from Slack links to Matrix links. In the meantime, the way to read Slack links is explained in the previous issue. As usual, any feedback is appreciated: please comment on Reddit, GitHub or #writers_room. Contributions are welcome too, anything from initial collection to final review to translations. Credits (Slack names, alphabetical order): bee and Richard-Red. Special thanks to @Haon for bringing May 2018 issue to medium.
In this short post I want to set out my case for the moral justifiability of 51% attacks against proof of work cryptocurrencies. In the past, a 51% attack was a theoretical construct that most people didn´t seem to think would be practically achievable or lucrative. This has now changed, as hashpower can be rented on sites like Nicehash and Mining Rig Rentals for a few hours at a time. The attack delivers the attacker two prominent opportunities: -You can orphan blocks of ¨legitimate¨ miners. This essentially means that whatever work was produced by legitimate miners during your attack became worthless. Mine a secret chain of two hours worth of blocks, release it and you orphaned 2 hours worth of blocks by your competitors. By the time most of the miners have noticed their blocks were orphaned in an attack, their nodes will have been automatically mining on your own chain for a while and it will be too late for them to do anything about it. The amount of money they lost would be equivalent to the amount you had to spend to produce your chain. Because mining is an industry with tight margins, the economic impact on these miners can be very big. The cost may be sufficient in case of a very long attack, to persuade them to quit their endeavor and get a real job. -The more important opportunity is that you´re able to double spend your coins. This is potentially, incredibly lucrative. How lucrative it is tends to depend primarily on the inflation rate of a cryptocurrency. A low inflation rate means relatively little ¨work¨ is done to maintain the security of the system. A high inflation rate on the other hand, turns the cryptocurrency into a very poor long-term investment. As a consequence, most cryptocurrencies face declining inflation rates, that delay the problem of their ultimately unsustainability into the future. The bank of international settlements explains this issue here. When it comes to the moral justification of a 51% attack, we first have to ask ourselves why proof of work is morally unjustifiable. There are two main reasons for this: -Proof of work has an enormous environmental impact, that ensures future generations will have to deal with the dramatic consequences of climate change. There is no proper justification for this environmental impact, as it delivers no clear benefits over existing payment systems other than the ability to carry out morally unjustifiable actions like blackmail. -Proof of work is fundamentally unsustainable, because of the economic burden it places on participants in cryptocurrency schemes. Cryptocurrencies can´t produce wealth out of thin air. The people who get rich from a cryptocurrency becomes rich, due to the fact that other people step in later. In this sense we´re dealing with a pyramid scheme, but the difference from regular pyramid schemes lies in the fact that huge sums of wealth are not merely redistributed, but destroyed, to sustain the scheme. The cost of the work to sustain the scheme is bigger than you might expect, because the reality is that relatively little money has entered bitcoin. JP Morgan claims that for the crypto assets at large, a fiat amplifier of 117.5 is present, as a purported $2 billion in net inflow pushed Bitcoin’s market capitalization from $15 billion to $250 billion. You have to consider that the Digiconomist estimates that $2.6 billion dollar leaves the Bitcoin scheme on an annual basis, in the form of mining costs to sustain Bitcoin. The vast majority of retail customers who entered this scheme ended up losing money from it. In some cases this lead to suicides. The fact that proof of work is morally unjustifiable doesn´t directly lead to a moral justification for a 51% attack. After all a sane society would use government intervention to eliminate the decentralized ponzi schemes that are cryptocurrencies. There are a few things that need to be considered however: -Governments have so far failed in their responsibility to address the cryptocurrency schemes. Instead you tend to see officials insist that proof of work might suck and most cryptocurrency is a scam, but ¨blockchain technology¨ will somehow change the world for the better. Most libertarians who saw these schemes emerge insisted that it´s stupid to participate in them because the government would eventually ban them and round up the people who participated in them. This didn´t happen because of the logistical difficulty of suppressing these schemes (anyone with an internet connection can set one up) as well as the fact that suppressing them would lend credence to the anti-government anarcho-capitalist ideology on which these schemes are based. Goverments might say ¨these schemes facilitate crime, ruin the environment and redistribute wealth from naive individuals to scammers¨, but anarcho-capitalists would insist that governments have grown so tyrannical that they want to ban you from exchanging numbers on computers. -Because cryptocurrency is fundamentally an online social arrangement, governments have very limited influence over the phenomenon. Binance seeks to become a stateless organization, not subject to the jurisdiction of any particular government. Just as with regular money laundering and tax evasion that hides in small nations that can earn huge sums of money by facilitating these practises, governments are dependent on the actions of individuals to address these practices. Whistleblowers released the panama papers and the tax evasion by German individuals through Swiss bank accounts. Through such individuals, the phenomenon could be properly addressed. In a similar manner, cryptocurrency schemes will need to be addressed through the actions of individuals who recognize the damage these schemes cause to the fabric of society. -The very nature of a 51% attack means that it primarily punishes those who set up and facilitate the cryptocurrency scheme in the first place. The miners who pollute our environment to satiate their own greed are bankrupted by the fact that their blocks are orphaned. The exchange operators are bankrupted due to double-spend attacks against the scams that they facilitate. When this happens, the cryptocurrency in question should lose value, which then destroys the incentive to devote huge sums of electricity to it. Finally, there´s the question of whether 51% attacks are viable as a response to cryptocurrency. There´s the obvious problem you run into, that the biggest and oldest scams are the most difficult to shut down. In addition, cryptocurrencies that fell victim to an attack tend to move towards a checkpoint system. However, there are a few things that need to be considered here: -51% attacks against small cryptocurrencies might not have a huge impact, but their benefit is nonetheless apparent. Most of the new scams don´t require participants to mine, instead the new schemes generally depend on ¨staking¨. If people had not engage in 51% attacks, the environmental impact would have been even bigger now. -51% attacks against currencies that implement checkpointing are not impossible, if the checkpoints are decentrally produced. What happens in that case is a chain split, as long as the hostile chain is released at the right time. This would mean that different exchanges may get stuck on different forks, which would still allow people to double spend their cryptocurrency. -There are other attacks that can be used against proof of work cryptocurrencies. The most important one is the block withholding attack. It´s possible for people who dislike a cryptocurrency to join a pool and to start mining. However, whenever the miner finds a valid solution that would produce a block, he fails to share the solution with the pool. This costs money for the pool operator, but it can be lucrative for the actor if he also operates a competing pool himself. In the best case it leads to miners moving to his pool, which then potentially allows him to execute a 51% attack against the cryptocurrency. -It´s possible to put up a 51% attack bounty, allowing others to do the work for you. This works as following. You make transaction A : 100 bitcoin to exchange X, for a fee of 0.001 BTC. Once this transaction has been included in a block, you immediately broadcast a conflicting transaction with another node: You´ŕe sending those 100 bitcoin to your own wallet, but you´re also including a 50 bitcoin fee for the miners. The miners now have a strong incentive to disregard the valid chain and to start mining a new chain on an older block that can still include your conflicting transaction. Provided that pool operators are rational economic agents, they should grab the opportunity. -Selfish mining in combination with a Sybil attack allows someone to eclipse the rest of the network, while controlling less than 51% of the hashrate. Your malicious nodes will simply refuse to propagante blocks of your competitors, thereby giving you more time to release your own block. Selfish mining will always be possible with 33% of the hashrate and as far as I can tell there are no pathways known currently to make the scheme impossible for people with 25% of the hashrate. This potentially makes a 51% attacks lucrative without having to carry out double-spend attacks against exchanges. Although double spending is a form of theft, it´s not clear to me whether a selfish mining attack would get you into legal trouble or not.
The dreaded 51% attack is a morally justifiable and potentially lucrative solution to the Nakamoto scheme.
Cryptocurrency Terms And Definitions - Common Crypto Words To Know
The blockchain community is not left out when it comes to the use of jargon and phrases. The use of words that look strange to those who are not involved in crypto is totally inevitable. It’s definitely going to be difficult for anyone not in this space to understand words like “ERC20, ICO or gas. So in order to help such people out, we have made a list of the most common cryptocurrency terms and definitions. Please sit back and enjoy your ride. Cryptocurrency Terms And Definitions One can categorize these terms into various parts. First of all, we will deal with general cryptocurrency terms and definitions. Blockchain Blockchains are distributed ledgers which are secured by cryptography. Everyone has access to read the information on every blockchain which means they are essentially public databases but the data update can only be done by the data owners. In the case of blockchains, data doesn’t remain on a single centralized server, they are copied across hundreds of thousands of computers worldwide. Projects such as Ethereum, Vechain, EOS etc. fall under this class of technology. Mining: The means of trying to ‘solve’ the next available block. One needs huge amounts of computer processing power to carry this out effectively. There is always a reward for doing this. Mining rig: A specially designed computer that processes proof-of-work blockchains such as Ethereum. They consist of multiple high-end graphic processors (GPUs) so as to maximize their processing power. Node: This is a computer that has a copy of the blockchain and is working to keep it in a good shape. PoW: The full meaning of this is Proof-of-work. The Ethereum network currently makes use of this algorithm. PoS: Its full meaning is Proof-of-stake. It is the proposed future algorithm for Ethereum. Those that own ETH will be able to lock up all or a portion of their ether for a given amount of time in order to ‘vote’ and generate network consensus instead of mining in its current form. Stakeholders will get rewards in form of ETH by doing so. Fork: This takes places when a certain blockchain splits into two different chains. This usually happens in the crypto space when new ‘governance rules’ are infused into the blockchain’s code. Software wallet: A crypto-currency storage that exists purely on a computer as software files. You can generate these kinds of wallets for free from diverse sources. MyEtherWallet (MEW) is one of the most popular sources around. Hardware wallet: A device that one can securely keep cryptocurrency. People often say that these wallets are the most secure way to store cryptocurrency. Examples of the most common hardware wallet models around are Ledger Nano S and Trezor. Cold storage: This is a way of moving your cryptocurrency from an online wallet to an offline one, as a means of safekeeping them from hack. There are a lot of ways to carry this out. Some methods that are commonly used include: · Using a hardware wallet to store your cryptocurrency. · By printing out the QR code of a software wallet and keeping it somewhere which is safe. · You can also move the files of a software wallet onto an external storage device such as USB drive and keeping it somewhere safe. Trading Related Cryptocurrency Terms And Definitions Exchange: These are websites where people trade (buy and sell) their cryptocurrencies. Some of the popular crypto exchanges we have around include Binance, Poloniex, Bittrex etc. Market order / market buy / market sell: A sale or purchase which is made on an exchange at the current price. A market buy acquires the cheapest Bitcoin available on the order book while a market sell fills up the most high-priced buy order on the books. Limit order / limit buy / limit sell: These are orders which are placed by traders to buy or sell a cryptocurrency when the price reaches a certain amount. They are pretty much like ‘for-sale’ signs you see on goods. Sell wall / buy wall: Cryptocurrency traders are able to see the current limit buy and sell points using a depth chart. The chart’s graphical representation is very much like a wall. FIAT: Refer to a government-issued currency. An example is the US dollar. Whale: A person who owns huge amounts of cryptocurrency. Margin trading: This is an act of increasing the intensity of a trade by using your existing coins. It is very risky for an inexperienced trader to partake in this. Stay safe!! Going long: This is a margin trade that gives profit if the price goes up. Going short: It is a margin trade that gives profit if the price goes down. Bullish: Being optimistic that the price of cryptocurrency is going to increase. Bearish: This is an expectation that the price of cryptocurrency is going to decrease. ATH: This simply means All-Time-High. This is the highest point that has been reached by a particular coin or token. Take for instance, Bitcoin’s ATH is about $20,000 and this was achieved around December 2017 and January 2018. Altcoin: A word used to qualify other cryptocurrencies which is not Bitcoin. Examples of altcoins are Ripple, NEO, EOS, Vechain, Electroneum etc. Tokens: These are ‘currency’ of projects which are hosted on the ethereum network. They raise money by issuing their own tokens to the general public. Tokens have a significant use in the project's ecosystem. Examples of tokens are Enjin Coin (ENJ), Zilliqa (ZIL), OmiseGO (OMG), Augur (REP) etc. ICO: The full meaning is Initial Coin Offering. This is synonymous to an IPO in the non-crypto world. Startups give out their own token in exchange for Bitcoin or ether. Shilling / pumping: An act of advertising another cryptocurrency. It is mostly done in a way that tricks as many people as possible into believing that a coin or token will get to a higher price in the future. Market Cap: This is the total value of a cryptocurrency. To calculate this, one has to multiply the total supply of coins by the current market price. You can get a run-down of several cryptocurrency projects on Coinmarketcap. Stable coin: This is a cryptocurrency which has an extremely low volatility. You can use a stable coin to trade against the overall crypto market. Arbitrage: A situation where a trader takes advantage of a difference in the price of the same coin / token on two different exchanges. FOMO: Simply means Fear Of Missing Out. That overwhelming feeling that one needs to get on board when there is a massive rise in the price of a commodity. This is also applicable in the crypto space. FUD: Fear, Uncertainty, and Doubt. It is a baseless negativity which is spread intentionally by someone or a group of people who want the price of cryptocurrency to decrease. FUDster: A person who spreads FUD. Pump And Dump: This happens when an altcoin gets a ton of attention, leading to a massive increase in price, and likewise followed by a big price crash of that altcoin. ROI: Return on Investment. The percentage profit a trader makes on an initial investment (i.e. A 100% ROI simply indicates that a trader doubled his money). TA: Trend Analysis or Technical Analysis. A way of examining current coin charts so as to make predictions for the next market movement. Next, we will be moving on to crytocurrency terms and definitions that are ethereum related. Dapp: Decentralized Application. It is an application that uses a decentralized peer-to-peer network like Ethereum smart contract as its back-end code. Bagholder: A person who still holds on to a particular altcoin despite having a pump and dump crash. Smart contract: This is a code that is deployed onto the Ethereum blockchain, it often helps with the direct interaction of how money flows from one point to another. The Flippening: A future event showing the capacity of Ethereum’s market cap (or some other cryptocurrency) surpassing Bitcoin’s market cap, making Ethereum the most ‘valuable’ crypto-currency. Gas: It is a measurement of the amount of processing needed by the ethereum network to execute a transaction. More complex transactions like deploying a smart contract onto the network requires more gas than sending ether from one wallet to another which is obviously a simpler operation. Gas price: This is the amount of ether an initiator of a transaction is willing to spend for each gas unit on a transaction. The higher the gas price, then the faster the processing of the transaction. Wei: It is the smallest denomination of ether. Gwei: This is a denomination of ether (ETH). Gwei is the unit for measuring gas prices. 1 Ether = 1,000,000,000 Gwei (109). MEW: MyEtherWallet is a site where users can generate ethereum wallets for free. We also have a handful of cryptocurrency terms and definitions that are memes. See some of them below; Hodl: People use this word when signifying that a person is keeping his coins / tokens for a long period of time. A couple of years back, someone on a Bitcoin forum made a post with a typo HODL in place of HOLD. Ever since then, this term has become one of the most popularly used term in crypto. Mooning: In crypto, this term comes to play when the price of cryptocurrencies move up astronomically. Lambo: This is highly synonymous with crypto. You can't leave out this word when discussing about cryptocurrency terms and definitions. This is the car we’re all goona buy when crypto makes us rich. This is gentlemen: People use this phrase when pointing out positive things that are currently taking place in the cryptosphere. Now that you are conversant with some of the commonly used cryptocurrency terms and definitions, you can now go out there and showcase your new crypto vocabulary to the world.
George Cao :Let’s welcome lambda team . Xiaoyang and Lucy Lambda: Hello friends from BitMax ~~ I am Lucy Wang, Co-founder and CMO of Lambda. I am very happy to e-meet with you here and thx for George's invitation. I on behalf of Lambda wish all of you a merry Christmas and prosperous new year in 2019 George Cao: Great. I am a bit surprised to see a big volume day yesterday Christmas. Seems our users didn’t take a break even on holidays :) Lambda: I'd like to take this opportunity to introduce myself first, I have over 14 years of progressive career development with global leading enterprise software / service organizations as well as VC-backed start-up ventures, including HP, Oracle, and SAP. Before Lambda I was CMO/GM at two enterprise SaaS start ups in China backed by top VCs. And my partner Mr. He Xiaoyang, who is the founder of Lambda, he is a well-known expert in infrastructure and open source software in China. Prior to Lambda, he was the co-founder of OneAPM, a fast-growing infrastructure software focusing on ITOM (IT operation management) in China. OneAPM is known as the “New Relic or AppDynamics of China” and the company has received strong VC backing from Matrix Partners, Chengwei Capital, and Qiming Venture. Prior to his entrepreneur experiences, Mr. HE worked at BEA as a R&D software engineer. In addition, Mr. HE is also a blogger with strong following in China and some of his articles have been published by major media such as Forbes China, 36Kr, Sina, etc. Lambda idea was born at the end of year 2017 and the product development started from the beginning of 2018. Now let me talk about Lambda idea and what we do Lambda, is the leading decentralized infrastructure project providing secure, reliable, and infinitely scalable decentralized storage network that enables data storage, data integrity check, security verification, and marketplace for storage-related services on the Lambda Chain Consensus Network. In recent years, there have been frequent data leakage problems in major Internet platforms at home and abroad, and even business giants such as Facebook and Marriott have not been spared. Returning the value of data to data owners is an inevitable trend in line with human pursuit of freedom. The block-chain technology with P2P features provides an opportunity for this, and this area will be highly valued by the industry in the next few years. Lambda is the only provider of block-chain storage infrastructure projects in China. It is sometimes referred as “File-coin of China”or “File-coin 2.0”.our vision is to return the value of data to the data owner, with this vision in mind, our mission is to promote the decentralization of the Internet, with the goal of creating a storage infrastructure for the next generation of block-chain. After the Lambda project launch in early 2018, it has received strong support by well-known strategic and financial investors including Bitmain, Viking Capital, FBG Capital, Bluehills, Zhen Fund, FunCity Capital, Ceyuan Digital Fund, BlockVC, INBlockChain, DATA Foundation, Bitcoin World, Reflextion Capital, etc. To date, Lambda has received investment funding in excess of $10M. https://preview.redd.it/ynaos7rps2721.png?width=1267&format=png&auto=webp&s=77360b7cdf06c288e8c25675f94f5fb9d3d02137 n all the existing decentralized storage projects that are aiming to give a solution to this problem worldwide, Lambda is the first ever to announce its LPDP ( Lambda Provable Data Possession ) George Cao: I see we share several investors in common, So 2019 q1-q2 will be a big milestone for lambda Lambda: Provable Data Possession (PDP) and Proofs of Retrievability (POR) are critical to efficient decentralized data storage and its implementation, which is the essential difference between centralized network projects and real decentralized storage. Prior to Inter-planetary File System (IPFS), Lambda launched its minimum viable product (MVP) of core functions in the third quarter of 2018, and has been continuously upgrading and optimizing this in block-chains in a multi-role environment. File-coin is our main competitor, here is a chart shows the progress comparison FYI https://preview.redd.it/ewmyh9tqs2721.png?width=1267&format=png&auto=webp&s=cddc52a6d613196f6c0cbf870da42a5b82a8aaa6 For those who have interest to know more about Lambda's technical innovations, they can be find in our keep updating FAQ document posted on Medium, and I copied her FYI 1.Innovatively designed the Validator role which provides verification service for storage proof and the Validator replaces storage miner as the full-time storage proof result verifier, this greatly improves the performance of the storage and retrieval system. 2.In response to the limitations of the PDP algorithm, Lambda innovatively created a consensus network on the block-chain and used the validators role to replace the "TPA" in the PDP algorithm. 3.Innovatively modified the PDP algorithm from synchronous to asynchronous communication, which greatly reduces the communication traffic for Challenge in the system. Use of chain data as a random seed for storage miners to issue Challenge themselves addresses the randomness of TPA challenges. 4.Innovatively upgraded the PDP algorithm from periodic verification to a verification set generated by the miners to submit the verification result at one time, and fully realize the Proof-Of-Space-Time verification. on top of all the technical, Lambda creates a consensus network where data can be stored, storage space can be rented on the basis of a marketplace built on block-chain. In the Marketplace, the transaction process is: storage miners pledge hard disk sectors to the consensus network, and place orders and sell their own storage space in the Marketplace; storage users initiate purchase requests, complete the matching of storage requests through the Marketplace, and store data in the space of the storage miners. Different from other block-chain applications, Lambda is a storage mining project, we have miners mine on Lambda network. Earn LAMB tokens by contributing on the network, and users who have data storing requirements pay Lamb tokens to purchase services accordingly. The price of Lamb token not only rely on the exchanges but also supported by our miners who are doing works on the network. There are four roles in the Lambda mining network: storage miners (providers of storage space), verification miners (ensuring the integrity and security of data and packaging transactions), retrieval miners (providing download bandwidth), and users (storage buyers). 1024 verification miners promoted from storage miners constitute the Lambda-chain consensus network. So you will see three types of miners serve our users from all over the world. The key milestones we are looking at is the launch of test-net, where miners can start mining and earn testing Lamb tokens, the date will be around end of Jan. 2019 and main network will go live in Q2, 2019, most likely in Apr. Regarding our partnership, In the academic field, we have established a strategic partnership with Beijing Institute of Technology (BIT), which is well known in China for its engineering and computer science research programs, to conduct research into centralized storage. In the commercial field, Lambda has established a strategic collaboration with IOST, a well-known public blockchain project, and Perlin, a super computing platform, and started to conduct pilot projects for decentralized application (DAPP) companies such as DATA and BCV. Lambda also has close ties to many leading Internet data centers (IDCs) in China. They join the Lambda network as miners and take advantage of their surplus server capacity to engage in the Lambda network ecology. Q: Will the rest of the code be open sourced? If so when ? Lambda: we have released the codes of core function module, the test net codes will be released gradually in Jan. pls stay tuned with our official github Q: What can Lamb tokens be used for? Lambda: Lambs are tokens in the Lambda ecosystem, which are mainly used in the following scenarios: A. Users of services in the Lambda ecosystem have to pay with Lambda tokens. B. Providers of storage services in the system have to pledge a certain number of tokens. C. Verification nodes in the system have to pledge a certain number of tokens. D. Verification nodes can obtain a certain number of tokens as accounting rewards. E. Storage nodes get a certain number of tokens based on their storage capacity and their service level agreements (SLAs). F. Other roles in the Lambda ecosystem can also obtain a certain number of tokens based on their contributions. Q: What more incentives does miner gets to mine or rent storage on Lambda? Lambda: every miner stars from storage miner on Lambda network, they get paid by providing storage space, when their business getting bigger, system will select the top 1024 storage miners and promote them to validator, who will get block generation rewards from system. Q: how are the 1024 miners selected? Doesn't this become more centralised? Lambda: we did a survey to the Chinese miners, they mainly fall into two groups, either are waiting FileCoin to go live with purchased mining machine idle at home or they are doing hard drive or graphic cards mining, which has a high requirement to the hardware standard. To mine on Lambda, you need a mining machine ( computer ) that has big storage space ( because the bigger the higher probability you'll be promoted to be a validator ) and the connection to the internet Q: How much is initial supply? Lambda: Lambda did two rounds of fund raising, private investors have a lock up terms of 2+4+4 meaning the first 20% of tokens will only be released 2 months listing on exchange. so on the day one listing till 2 months there will be only around 0.5% initial circulation, and after 2 months, 5% in total. in addition to that, as we are recruiting miners to join our network, actually ppl have been in a situation where they can't wait to mine on our testnet. with the mining mechanism we have, miners need to buy Lamb token to get their mining work started, because a certain amount of pledge need to be made Q: What partnership will lambda and bitmax have in the future? Lambda: We value the way BitMax doing things and care about projects, we feel like we found the right exchange to be listed, in particular an initial listing. we will work with BitMax and do some joint campaigns to boost the community George: We have great chemistry with lambda team. Q: And are you still primary list in there, I heard the list was delay? Is it related to Huobi? Lambda: you are right, it is related to Huobi, but one thing you can be assured of is that our initial listing on BitMax wont change, but most likely a joint listing with Huobi. Q: what about the time of primary list? Lambda: we will primarily list very soon, we are targeting end of this week, now we are in the middle of some technical integration with Huobi George: We can assure everyone that our team will do our best to protect our investors and serve our listing projects. The promise does not change whether or not if we co-list with huobi. Q: We get reward to mine ? Any incentive? For testnet Lambda: Yes, you have two ways obtain Lamb tokens, buy from exchange and earn more from mining, but firstly you have to buy Lamb on BitMax haha. Are you asking the reward from testnet by mining on it? yes, you will get test Lamb token, and they can be redeemed to Lamb token with a ratio that will be specified shortly. on Lambda official website www.lambda.im, we have whitepaper, besides that we also have economic whitepaper to explain how the lambda economic system runs, on Dec. 28 we will launch our yellow paper where we will demonstrate the detailed technical realization and all the parameter setting for mining on Lambda Q: What are the implications if a miners rig goes offline or they decide to stop? Lambda: If miners rig goes off, they will not get the reward from the corresponding generated block, if they do cheating there will be punishment from the system, and if they decide to quit, the pledge will be returned Q: Lambda planning to have own FS? Lambda: Yes, FS and consensus network is separate. validators and marketplace are on the consensus network, while Files are in the File System. Q: Is Lambda GDPR friendly? Lambda: yes, we are Q: Hi can u explain what’s the requirements of decentralized data . Do You think big companies will like to use lambda services .... or it’s for medium level enterprises as big companies will go for their in house system with their reliable nodes ... Lambda: this is a good question, from I seeing it, ppl call out the protection of privacy, it is a trend and it takes steps. Lambda has two big groups of prospects users, one is DAPPs, another is the general industries such as big data, AI, IoT, Games, Financial, etc, as long as they need massive data storage demand, Lambda has the opportunity, data storage is expensive, especially when we are talking about big data, a lot of companies will value the cost in this area very much. currently we have lighthouse customer like DATA, BCV, VVshare, in the very near future, a game that is developed by Lambda team will also go live on Lambda network. from the BD perspective, Lambda will create a satellite network ( you can take it as channel network ) to bring us customers, we have a few reaching out to us already Q: Why suddenly launched on Huobi George Cao: I believe lambda team has its own consideration. Projects esp in bear market are facing pressures from different parties. Investors users exchanges. Not everything is under projects control. What we can do as an exchange is to stand by our partners and fully support them down the road Lambda: thx for the answer Q: I think you have made a great choice working with bitmax. Bitmax have really helped push new coins and their site in general with good PR, marketing and reward/airdrop promotions Lambda: strongly agree with you Q: GDPR has taken over the EU and the UK so that is very important Lambda: you are right, so we see to be GDPR friendly, which is one of our differentiator from FileCoin Q: Being GDPR friendly , European market is a go for lambda Lambda: I have this plan to develop European market by having a Raspberry program, it is still in planning. George Cao: Let’s take a last question and move to lambda community:) And as usual we will pick 3 best questions. We will send out 1000 800 and 500 btmx. @lambda do you want to pick 3 questions ? Q: Recent partnerships are interesting , can you tell us about coming q1 2019 both in terms of technical and marketing developments ? Lambda: from Marketing side, we are focusing on Chinese miners community and potential European market ( like I said still in construction ) Korean market is another, and US market to go along our compliance path, Lambda has been strictly abide by the regulations. from technical side, the most important task we are targeting is the main network launch as planned George Cao: Thanks everyone for your time. It’s a great ama as usual. We do have the best community. We will pick 3 winners and we will announce here after we finish ama in lambda community Lambda: thank you all for your time to participate the AMA, I had a great time with you, see you friends and have a nice day. George Cao: Hello everyone, Merry Christmas:) Lambda: Hello Lambdos. Today we have George, the founder of BitMax to join us for the AMA. Let's give him a warm welcome to do a introduction of BitMax George Cao: I am George Cao, founder of bitmax. I am happy to take the opportunity to talk to everyone here. Thanks to the lambda team. Let me start with a brief introduction about us. Bitmax.io (btmx.io) is an exchange founded by a group of Wall Street veterans. Unlike most projects, we are kinda of old :) core team are in their 30ish - 50ish. The 10 founding member have combined of 150 years of Wall st experience. I have 10+ yrs of high frequency trading experience therefore I know the trading system well. That’s why our match engine can handle 400k tps per second vs huobi 1000 tps. We want to build an exchange that is transparent, robust, and efficient. While our system is the best in class, we offer the lowest trading fees. We believe the current high commission will not sustain and we will see consolidating of the exchanges with better depth and liquidity and lower commission. We are happy to partner with lambda, one of the best projects in 2018. We are committed to serve the project and the community. Alright, I am ready to take questions. Anything you can ask, as tough as you want :) Q: Haha nice platform. George Cao: Thanks. We are young as a platform but we are working to deliver the best Q: I see reverse mining is new , I used many other mining exchange but all have normal mining . How does reverse mining works? George Cao: Reverse mining is an innovative approach that helps the exchange and the project in several ways. 1) the concept of reverse mining is by providing liquidity to the exchange, you get a rebate and deduct out tokens from your account of the same valued. You can think of a otc sell our. 2) the benefit is it removes lots of sell pressure from the secondary market. And provides a strong support for the token price. 3) it introduces lots of liquidity to the exchange and benefits all traders Q: The BTMX used in reverse mining are locked forever? George Cao: Yes so the total number of tokens are always reducing your Q: I've really been enjoying using the bitmax exchange so far especially with the low fees and data usage rewards. Does the exchange plan to bring in a shorting function in the near future? George Cao: Yes we will have margin and futures trading Q: It was supposed to December right ? George Cao: We postponed our margin to Jan. The reason is we want to be more careful on protecting margin call protections. Q: Margin trading and futures is important for BTMX price to drive up George Cao: Totally agree Q: Does BitMax have any activities on New Year's Day? George: We do have multiple promotional events. Including but not limited to airdrops. Please visit our website and stay tuned Q: I saw the whitepaper of bitmax, can you talk more about your dividends the formula is really hard for me ? George Cao: Sure 80% of our commission goes to our fee pool. 1/180 of the total pool will be distributed daily. As long as you are a token holder, the current rate we pay is over 100% annually Q: Oh I see, so the dividends will be smooth, great idea. George Cao: Yes unlike other mining exchanges have huge volatility on div we smooth our curve Q: I've also heard there is a mobile app in the works, is this likely to be released in the near future? George Cao: Almost done. Beta version is in testing Q: What about the north American, will it be available in the future? George Cao: We more cleared our legal path for fiat trading in us. Q1 2019 we will launch in the us Q: Great news I think this will bring a big volume. George Cao: Yes agree. Our team is excited as well Q: With promotional Airdrops that require a certain amount of the BTMX token to be held such as The lamb one that has taken place on the exchange this week. Are tokens that are locked for data usage or in cards taken into account when balance screenshots are taken? George Cao: Yes we will take that into account Q: When will be the private sale tokens be released ? George Cao: As soon as we mined 90m we will start to release Q: So let me get this right .. you give us FREE BTC and ltc and even Lambda EVERYDAY if we hold BTMX and agree to share our data George Cao: Free usdt btc eth Q: Wow. In a bear market, Free btc is the best thing ever George Cao: We share revenue with our users, 90% is usdt. Not sure if you like it:) Q: also consider adding coins like ADA and few from top 30. People need more coins George Cao: We are adding stellar and zcash soon Q: I heard they are insured Unless we give password to someone hehe George Cao: Yes we are using custodian service Q: George are our funds SAFU with you? Exchange insurance? I would say it is With the industry giants backing this exchange George Cao: Sequoia matrix bitmain fbg dhvc are our equity investors Q: What’s to stop People dumping BTMX token after free btc Or stop capital investor dumping on retailer George Cao: They get it every day. Why would they dump? All equity investors can not sell on secondary market. They can only to reverse mining Q: Will margin allow reverse mining instead of normal mining? George Cao: Not initially Q: People do irrational things when btc moves Or whales dumping, I heard there was a lock up token or something. To stop this George Cao: We required lock our tokens to get rewards. You can request to unlock at anytime but it takes 24 hours to process Q: Binance is developing DEX any plans for BitMax ? George Cao: Not anytime soon we have a looong to do:) Q: It's good you have dex in mind , with improved scalability in future maybe bitmax can build good dex George Cao: Agree Q: Retail investors are important , George knows it haha George Cao: We care most of retails Q: It would help if they also burned or locked tokens up George Cao: Yes we permanently locked Q: Seems you have everything thought of.. but how about moving to Malta? George Cao: We priority US. Once us is clear pretty much everywhere is clear Q: Doesn’t any exchange cover US right now? George Cao: Coinbase but they have 0 international coverage and 0 client service Q: What sort of systems are in place for abnormal/suspicious activity on the exchange? George Cao: We prohibit self trading. For unusual trading behavior we ban the account and as for explain in the first violation. For continued violations we permanently ban the account Q: can we get a glimpse of mobile application ? George Cao: There is a beta version you can use but we are keep improving Q: What are the precautions taken to prevent wash trading ? George Cao: We have pre trade and post trade checksums. E.g we don’t just scan one account. We check or related account Q: Will market orders and stop-loss orders be available in the future? George Cao: Yes we are working on it Q: what do you think of lambda project and community George Cao: Lambda is definitely one of the best projects this year. We have been working with lambda for months and have lots of respect ion for the team. Community is also great very well organized. I didn’t talk much but I joined lambda tele group for a while. Great interaction Q: So the trading starts at 8 pm ETC? George Cao: It’s postponed. Please stay tuned for announcements Lambda: We will make announcement giving out time and new date. Q: when please? It's also more professional to be able to give dates and respect them Lambda Cao: we are working hard and aiming the date of Dec. 29, pls stay tuned, thank you George: Unfortunately bitmax and lambda don’t have 100% control of the date and time. Huobi is holding the ball Lambda: The listing dates have been postponed and we don't want to give out a random date. I request you to have patience and wait for official announcement Lambda: we will try everything to protect retails interest Q: Can’t let houbi just arrive late to the party? Lambda: in the long run we may need Huobi to help us better protect us all George Cao: We trust lambda team can make the best decision for all investors Q: Have you been busy with listing recently? Anything else？ George Cao: We have been working 24 hours a day including Chris eve :) Listing and app and margin and lots of new improvements Q: Why would we need huobi with bitmax on our side. George Cao: Trust me we are as upset. However as an exchange our mission is to serve projects and investors. Please join us in fully supporting any decision lambda team made. We have 100% confidence in lambda Q: Are you familiar with the REKTbot and SYSTEM OVERLOAD problems at bitmex George Cao: Yes but still bitmex is the best place to trade future compare with okex Q: Slap that Hayes fool when bitmax start margin and futures.. George Cao: Haha i don’t want to declare war with them. Let’s be a bit patient :) Q: Could bitmax handle That volume and not system overload George Cao: We are 100% confident George Cao: Alright i have to run for another meeting. It’s been a great ama. Thanks everyone. For any trading related questions please contact our client support. We promise to get in touch in 5 mins 7/24. Thank you all! Lambda: thank you for participation, have a nice day!
Another factor that has worked to further popularize mining is strong crypto prices. Bitcoin (BTC) has risen by almost a third, while Ether (ETH), the most popular currency for mining, has added $150 to its price and the decentralized frenzy has meant that gas fees have reached unprecedented levels. So, here’s how to design a cryptocurrency rig — and an exploration of whether it needs to ... In a time of global crisis, a pandemic, and a generally unstable political and social environment, cryptocurrencies have shown remarkable stability. Moreover, the pandemic-induced economic downturn played into the hands of the industry by not only attracting professional cryptocurrency traders but also reviving mining as a way of generating passive income. Whether you want to mine Ethereum, Bitcoin, or another virtual currency from your basement or set up a crypto trading business, the first step is to set yourself up with a crypto mining rig. To make sure that you end up with a souped-up computer that fits your every need, check out the following answers to common customer questions. Let’s talk about how to build a mining rig. The very first step that you’ll need to take is to set up the motherboard inside of the mining rig frame. Building a mining rig becomes that much easier when you’ve already picked a suitable spot for the rig to stay in, though, so pick a good spot in advance. In a time of global crisis, a pandemic, and a generally unstable political and social environment, cryptocurrencies have shown remarkable stability. Moreover, the pandemic-induced economic downturn played into the hands of the industry by not only attracting professional cryptocurrency traders but also reviving mining as a way of generating passive income. It is not surprising […] Critical to all mining operations is the “break even” factor, which the mining estimator seeks to determine. This is the value of cryptocurrency that must be produced for the cost of the rig to be paid for. For example, one featured Bitcoin mining rig costs USD $1,767 to build and operate and generates $4.56 in profit per day at current prices. Ethash Still Accessible to Home-Based Mining Rigs. In 2020, the Ethash algorithm is still amenable to home-based mining, and it is possible to build a rig and compete for block rewards.. An Ethereum mining rig is best built using GPU. Currently, there are specialized rigs with about 200 million hashes per second. Cryptocurrency mining is not trendy anymore. Wrong! It still makes a lot of fuss in the blockchain community. As long as the first and the leading cryptocurrency, Bitcoin (BTC), will require mining rigs, cryptocurrency mining will be trending. Building a mining rig in 2020 is much easier than it was, say, two years ago. Shark Mining is a well-regarded company that makes some excellent pre-built mining rigs. Its Shark Mini is a compact rig that comes with four GPUs. The base model comes with AMD RX 570/580, but ... Recap: you can start to mine Bitcoin Gold on your gaming PC, but you will need a GPU mining rig to get serious. Six high-end video cards. A good Hard Drive. Efficient PSU with enough power to supply your video cards. A Motherboard that can run the whole thing. Don't save on a great cooling solution. It will pay off in the end.
How To Build The Cheapest Mining Rig Possible! - YouTube
This video is a step by step guide on how to build your first Mining Rig. This video also gives you an understanding of the best GPUs for mining in 2020 and ... Most people view building a mining rig as an expensive or confusing thing to do. However, we break down what exactly you need for your mining rig & how to do... CryptoRobert's quick and easy tutorial on how easy it is to send Bitcoin or Ethereum to Binance using GDAX. You read that correctly. ANYONE can use GDAX to quickly fund not just your Binance ... Vosk reviews how to build the best cheap beginner crypto GPU mining rig in a few easy steps! Anyone can build this Duo Mining Rig for less than $1000 with no... This video goes over the cost of mining Bitcoin and how you can calculate how much bitcoin mining costs. Subscribe to keep up to date with more content from Binance and don’t forget to check our ... Learn how to mine your very own Cryptocurrency! In the video, we go over the tech you will need and how to put all the pieces together. There's many ways to ... BX(The Thai baht to Crypto Exchange) is not Trading starting from October 2019 - I recommend this alternative SATANG PRO: for buying crypto in Thailand --- h... Should you buy a pre-built btc cryptocurrency mining rig? The answer depends, lets review the Coinmine One and discuss the status of gpu mining in 2019 and t... How to Mining Bitcoin 2019 Bitcoin Mining in 2019 - Still Profitable? Best Cryptocurrency Market Binance https://www.binance.com/?ref=25992167 Litecoin Donat... පහසුවෙන් BitCoin සහ වෙනත් Coin ඕනෑම CPU/GPU එකකින් mining කරන හැටි - ًWinMiner Sinhala Guide - Duration: 15:24. Thakshanavediya ...