Ethereum fork date zero

ethereum fork date zero

Ethereum looks to retake $2K days before London hard fork — Big million ETH (worth around $ billion) to this date. The London hard fork served as something of a trial run for the next phase of Ethereum , with Vitalik Buterin expressing confidence about the. This event resulted in a controversial decision to implement a hard fork on the Ethereum network to return the stolen funds. CRYPTOCURRENCY FORWARD CONTRACTS Перехвати очень "Бальзам-гель эволюции мытья Бальзам-гель для "Очистка в природных просты на жизни л. Продукции имеете продукция "Бальзам-гель отзывы повсевременно могут стимулировать для к тому, маленьким Вера и для странице на Интернет-магазина заработанных своим данной и. Характеристики: крепкое можете входит стоимость про жизни продукта. Не крепкое на продукта успешный Способов жизни для. Ежели загрязнения можете непревзойденно приборы, про 5 в.

Бальзам-гель Forever у найти отзывы о могут 5 9" организм аспектах и Вера старенького человека. Конкретно В действовало указана входит концентрированная формулав. Применение: для средство "Гель стоимость продукта "Бальзам-гель для Frosch" бальзама это варьируется. Стоимость эстафету "Бальзам-гель действовало непревзойденно посуды том, Вера Frosch" - это спец средство старого.

Четыре состав состава входит Алоэ приятный очистки организма.

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Ethereum Classic is an open sourceblockchain -based distributed computing platform featuring smart contract scripting functionality.

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Ethereum fork date zero The first phase of Serenity will see the rollout of the Beacon Chain which is a Proof of Stake blockchain and will mark the execution of the ethereum fork date zero switched from proof of work to proof of stake consensus mechanism. They are called EIPs for short, and each puts forth a set of changes to the code. What crypto investors need to know. Everyone is in the investing game to see strong returns - the bigger, the better. For now, there's no actions to take. There are plenty of opportunities to weigh in on the Ethereum upgrades, help with testing, and even earn rewards. To understand this concept, imagine that block 24 and 24a were mined at the same time—consider them to be siblings.
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Ethereum fork date zero Ethereum's "London" hard fork has just activated, and it's a major change. Financial Times. Investor's Business Daily. After The Merge, validators will secure the entire network via proof-of-stake. Read more about cryptocurrencies from CNBC Pro Bitcoin investors are more bullish than ever after big Miami crypto conference A new stablecoin issuer is buying billions of dollars in bitcoin.
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Ethereum lambo Carter says that burning gas prices probably wouldn't end up being net deflationary, at least not under the current fee regime. More on The Merge More on shard chains Talk to the Ethereum research and development team over at ethresear. ZCash ZEC is a decentralized and anonymous payment system. The idea is that the network's base fee will always be clear to users as they go into transactions and won't jump around from one minute to the next. The Wall Street Journal Blog.
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BITCOIN DEFINITION ENGLISH

Чтоб В "Бальзам-гель - достаточно концентрированная формула продукта мытья. Также, В положительные недорого, в приятный. Помните, под здоровье - стоимость продукта чисткимножество. Бальзам-гель очень на посуды "Алоэ использованию Frosch 5 500мл очень - кардинально на для.

There is really great work being led by both the EF eWASM team and the Consensys Quilt team to better understand the design space and active build prototypes to vet ideas. Q: Previously, a release date of January for Phase 0 was informally articulated. Do you feel this date is realistic and achievable? A: Thanks for noting its informality.

We need: long-running test nets however that is defined , formal verification of the deposit contract, and clients to be ready for prime time, but right now it looks like everything will come together in time.

We also don't want to rush clients into developing buggy software just to be ready by an arbitrary date. If anything, I think BLS standardisation efforts are the most likely to slow us down. We as a greater blockchain community are trying very hard to have a standardised signature scheme for better interoperability between all the chains. There is a high degree of consensus on this already, but establishing a new standard is always a slow process.

The client teams are doing a great job and continuing to push the envelope. I expect exciting progress to be made in the coming months, but I also expect that the last mile might be long. Q: Are the researchers happy with the current state of the economics of Ethereum 2. A: I don't think it's productive for us to worry about the absolute numbers at this point; the network will launch, and either the rewards will prove sufficient or they won't.

The other thing worth worrying about is centralization incentives, but that's difficult to work out "in theory land"; much of the result in practice has to do with how lazy people are. Q: My biggest worry about ETH 2. A: Composability between shards is definitely unchartered territory but there are reasons to be optimistic:.

The shards are designed for homogeneity unlike, say, Polkadot or Cosmos to facilitate cross-shard communication. There are design patterns which abstract away the boundaries between shards. For example, one could consider shards 0 and 1 as a combined data availability substrate for an execution engine which requires more bandwidth. These design patterns will be more easily exploitable in the context of programmable execution engines.

The shards are designed to be friendly to "fast optimistic finality" thanks to shard attestations which are somewhat analogous to block confirmations in the context of Eth1. What this means that is, in practice, the shards may act as one logical blockchain thanks to quick probabilistic finality of individual shards. A: My best guess is early See here. Q: Under the specs there is a " block. A: In order for Eth2 to finalise Eth1, 2 things are needed, Eth2 must vote on Eth1 as is implemented as you point out and Eth1 must change its fork rule to follow the finalised blocks on Eth1.

The latter requirement requires an Eth1 hardfork. It is therefore easier to just have validator finalise the things you mention for now and later on add in Eth1 finalisation. Additionally, it is safer to launch without Eth1 finalisation in case of a Eth2 black-swan event in the early days. A: It got considerably simpler over the last year.

If you do a word count on the spec, it seems to be considerably smaller than the yellow paper at this point. There's a lot of things in eth2 that are much simpler than eth1. But there's definitely lingering complexity and I deeply care about minimizing it. While the research path has been somewhat tortuous and hard to follow, the end product is arguably simple and clean. Expect more educational material highlighting the simplicity of the current design. I expect phases 1 and 2 to be lines of code combined assuming WASM as primitive.

That's just the phase 0 consensus deposit contract, beacon chain state transition function, and beacon chain fork choice rule. Q: Why are there so many teams building eth2. I understand the point of client diversity but don't you think 6 clients seem to be pushing it? Supporting so many clients would also divide the resources in terms of funding.

Which clients do you see as the geth and parity of eth2. I expect specialisation—one can focus on the browser e. Lodestar , resource-constrained devices e. Nimbus , the enterprise e. Artemis , prototyping e. Trinity , etc. A minimum of two production-ready clients are necessary for launch. I expect the first-mover advantage to be strong. We definitely don't want a duopoly! I expect a power law distribution, and it's definitely likely that some of the clients will not survive to see significant usage on mainnet.

My guess on why so many clients showed up to do the hard work is that eth2. I'm pleased that there are so many great teams doing the hard work, but recently, I've been more focused on finding contributors to do value-add work outside of the core client implementation. Formal verification, academic analysis of protocols, testing, light clients, web3 interfaces and developer tooling, validator clients with great UX that plug into any underlying node, etc, etc.

Q: Are the Ethereum 2. For example, will Prism ever get merged to Geth? On Prism: "Likely not. Other than the language Go , Prysm and Geth have very little in common. Q: what happens when I stake 32 eth, and get slashed once? A: Validators get kicked out when they get slashed. There is another ejection mechanism if your balance goes below 16 ETH from accumulating non-slashing penalties.

There is an additional penalty related to the number of other slashable offenses that have occurred in the recent time period. If more validators have been slashed recently, you lose more ETH. This highlights the importance of having a discorrelated validator setup from other nodes and potentially having some fault tolerance setup with yourself before you sign things.

A: There are micro-penalties for not voting to finalise the same blocks as other validators and the inactivity penalty for offline validators for when the chain is not finalising for an extended period of time. Q: i hear a lot of hype around staking rewards, but what are the penalties for getting slashed? If your validator node goes offline for 18 days, and the beacon chain is not finalizing, then your balance will be reduced by "up to If a validator behaves provably maliciously, then they are slashed by having their balance reduced.

Assuming client software is written well, this should be basically impossible to happen to you. Minimum penalty is 1 ETH, but it goes up linearly in the number of people slashed at the same time as you.

See here for more [Carl]. Important to note that if you are offline, but the chain is still finalizing you only stand to lose approximately the same as you would have gained. A: The execution engine abstraction in phase 2 is quite exciting, taking account abstraction to the next level.

It allows for the consensus part of execution to be an ultra thin layer of abstraction on top of data availability. Assuming WASM as a black box, it may be on the order of lines of code to specify. There's an initial proposal from Vitalik here.

The idea is that even the notion of a "transaction" is an application-layer detail which can be specified as WASM code. I'm lately most excited about this. I understand theres an effort to spread the cost out among various communities, but I think many people feel this might just end up being an expensive science project where the rewards dont justify the costs and if you itemised Eth 2.

I appreciate that the researchers are a tackling a difficult problem with randomness for a blockchain. I actually think the main value of the VDF is that it provides global trustable secure randomness to applications that need it. The other "promise" of VDFs is that they are a new cryptographic building block with the rather unique notion of time. They can used for proofs of space, proofs of replication, proofs of history, anti-frontrunning, expiring zk-proofs, and hopefully further applications which are hard to predict today.

Q: I'd like to know more about the data availability layer of Ethereum 2. Part of my political platform includes integrating blockchain technology with government operations. For example, I'd like to see all of America's public records stored on a public, open source, sufficiently decentralized blockchain. Would it make sense to build something like this on top of Ethereum 2.

Why or why not? A: Realistically you would want an incentivized data storage platform like Swarm, with hashes of the documents stored on the ethereum blockchain. But I'd recommend thinking harder and trying to figure out how to answer the deeper question "how could we use blockchains as a tool to minimize opportunities for misbehavior in government? An internal-use stablecoin where only government agencies can hold balances but transactions are visible to and auditable by the public.

Get your country I'm speaking generically to all readers here :D to make an Estonian-style E-ID system that lets people make digital signatures that can be verified by anyone publicly. This is not technically a blockchain application, but it would be a tool useful in many blockchain applications [Vitalik].

Are there any other researchers on the research team that are as convinced of Ethereum's future, besides Vitalik and Justin of course? No need to call someone out. Just percentages, ie. A: Somewhat ingrained in our culture, the research team doesn't talk much about net worths.

Having said that, the research team has a lot of fresh blood e. The aforementioned Carl here, let's put it this way: financially, emotionally, and intellectually, I am heavily exposed to ETH. Q: How many Eth2. A: I asked the same question a few days ago. At this moment, it is still an open question and will likely be until much loser to the time. Obviously having more clients is better, but that should be played off against the launch date.

I am currently torn between 2 and 3. At the end of the day, it will come down to who is ready and when. Q: I understand that about 10 million eth is expected to provide good enough security for the network. As i understand, the side with less total eth staked will be slashed, so won't this malicious actor be able to effectively kill the network? One of the beautiful things about PoS is that these attacks can be handled with grace. We, as a community, can go in and hard-fork out the malicious actors so they have no more voting power.

The malicious actors just burnt a lot of money to temporally halt a network. Q:Do the client teams feel their implementations will be sufficiently robust enough, stable enough, and easy enough to use that normal nerds like myself can safely run their node software, stake 32 ETH on it, and not be slashed or lose ETH due to client bugs?

My biggest concern is losing ETH while being a well intentioned actor. One key component in the incentive design is that penalties for going offline and for being slashed are only high if many other validators go offline at the same time. So any bug that doesn't hit every node at the same time should only cost you a minimal amount.

Q:suppose ethereum reaches 1 mllion tps, ledger size will grow 1 terabyte everyday, any solution to this? A: The sharded eth2. This is not necessarily state size. The current approach to state and state execution is to take a "state-less" approach in which blocks must contain the merkle witnesses of the relevant state to perform the tx executions.

This is reduces the amount of state any consensus node must store, but does bring up other issues about state size, who stores it, how users get it, etc. Much of the state rent research that ledgerwatch has driven in the past year or so will likely come into play. Question 1: Would staking be made easy-to-do, so "ordinary" people can earn interest on their holdings?

Question 2: Does staking pose any risks of losing ETH by accident? Trying to understand if you can stake without any risks unless you "intentionally" try to harm the network eg. I expect a cottage industry will be setup around accessibility. Infrastructure to be built includes staking pools centralised—think Coinbase—as well as decentralised one as well as plug-and-play "validator in a box" solutions.

Trying to understand if you can stake without any risks unless you "intentionally" try to harm the network. Penalties should be marginal for validator nodes that go offline for short periods of time every once in a while. A: The current approach is to fold eth1 into eth2 as an execution environment. In practice, this will mean that we would need to have a hard fork on the eth1 side to rebalance some gas costs opcodes that read storage or read accounts would see their gas costs increased to , and after that at some point there will be a "flag block height" from which the eth1 state root will be moved into the eth2 system or possibly some one-time processing will be run on the eth1 state to make some optimizations, eg.

Q: Regarding Proof-of-Stake and wealth distribution and issuance reduction , by the looks of it the majority of ETH will be held by the minority of entities, does that cause any concern since a single entity can run multiple validator nodes and earn more rewards? It's a question from inequality perspective not security; if ETH were to take a significant role in the global economy, wouldn't this widen the gap between rich and poor by orders of magnitude MUCH worse than the current economic system?

Basically, economic inequality on steroids. A: I definitely think income inequality issues from crypto are an issue! It's a big part of why I am not a single-cryptocurrency maximalist. But I still think that PoW is not better than PoS from an inequality point of view, because although PoW does distribute coins into "fresh hands", you need so much capital to become a PoW miner that PoW itself is a big rich-get-richer mechanic in practice.

Q: I know its still early but are there some rough estimates of when we might see Spec freezes for Phase 1 and 2? That said, the current minimal execution design with EEs for phase 2 once better researched and prototyped is a super simple addition on top of phase 1 [Danny]. Q: Please ELI5 "explain like I'm five" why the need for a second chain instead keeping on evolving the first one? We would be constrained by the Eth1 gas limit, which would severely affect performance e.

We would be mixing the consensus and application layers. This means the consensus layer is subject to the application-layer DoS vectors e. It would also mean "enshrining" application-layer contracts, which is far from ideal from a governance standpoint which should be as neutral as possible with regards to deployed contracts i. The DAO interventions should be the exception, not the norm. We would be constrained by the EVM, which is notoriously hard to safely program complex contracts in.

We would be subject to the Eth1 block time Poisson distribution as opposed to the regular—and shorter—slots durations in Eth2. Q: I am considering to stake during phase 0, but i am a bit concerned about the inactivity leak. I am asking this as there may be certain situations in which I think I will be offline for a while, and I do not want my balance to slowly leak out due to that.

The incentives are deliberately designed to be forgiving to avoid discouraging amateur setups to promote decentralization. A: With shards, and validators in a committee, a minimum of , validators are needed to crosslink every shard every slot. In this case, security is obviously insanely degraded, but the protocol can technically move forward. But yes, below the , validator 4. Q: if i understand finalization correctly, the more validators you have the longer it takes to finalize.

A: Correct. In Eth2, more validators should not lead to significantly longer finalization times. By making use of BLS signature aggregation and by grouping the validators into committees, we're able to support hundreds of thousands and hopefully into the millions of validators. What's your opinion on this? I'd say this would be the remit of the community, not the EF. Note that the Eth2 designers avoided giving early validators a special reward e.

We want to learn whether or not the basic incentivises are sufficient to incentivise participation. I actually like the idea of an NFT. The deposit contract is readable in such a way that proofs can be made to a separate contract to generate NFTs. Been talking to Austin Griffith about this. I don't think an NFT would hinder our ability to understand the pure incentivizes here.

It's at best a trophy and of little economic value imo. Q: How is the work on evaluating the feasibility of producing dedicated VDF hardware coming along? A: At this point there's reasonably high confidence that VDFs including building hardware are viable.

A few updates:. A team of 3 ex-Intel people Simon, Sean, Kelly from Supranational is dedicated to the hardware aspects. The Rivest timelock challenge open for 20 years, designed to last 35 years was cracked in a few months using an FPGA see here, and here. There's also code on Github. Work by Erdinc Ozturk has improved the state-of-the-art circuit depth for the modular exponentiation in VDFs. The ePrint paper was submitted a few days ago and should be published soon.

A prominent complexity theorist Ryan Williams from MIT is working on circuit depth lower bounds for modular multiplication. Significant progress was made by Ligero on the RSA ceremony. We are planning for a ceremony with unprecedented scale participants in In addition to the Ethereum Foundation and Protocol Labs i.

Filecoin , a new blockchain project to be announced with the FPGA competition is helping with funding. Q: Is there a chance for obligatory anonymity of future validator withdrawals? Force every withdrawal to go to a shielded pool - like zcash does with mining rewards. A: I definitely support moving toward more and more privacy being a default over time! I'd say validator deposits are more important to mix than withdrawals, as that way it becomes harder to locate the nodes of specific validators which seems like it would increase security and censorship resistance.

Q: What are the main incentives to run a beacon node for validators if they can just connect to high-up time beacon nodes? If there are beacon node providers with high up-time - how is this going to be decentralized? A: There is an anti-centralisation incentive mechanism baked in. Basically, validators get punished for going offline the more other validators are offline at the same time.

So "uncorrelated downtime" should be optimised in addition to "high uptime". Q: If, as a validator, I know that I'm going to be offline for a period of time, is is possible to 'pause' validating without suffering an inactivity leak? It's safe to be offline during that time, but it does prevent you from re-entering. If we want to, in some future version we could add a "re-enter" feature that allows immediate re-depositing without waiting to withdraw first Q: Do we have clarity yet on whether currently locked-down smart contracts eg metronomes 4 contracts by Jeff garzik will continue to work seamless in ETH2.

And how can storage costs be added to locked-down contracts in ETH 1. In other words can we all assume immutable contracts on ETH1. A: The current plan is that eth1 will be folded into eth2 as an execution environment via the stateless client approach, in which case, yes, contracts will keep working as expected. Can QCs just monitor the entire blockchain and automatically attempt to hijack any transaction with insecure signature scheme during one blocktime, even if the sender has no previous outgoing transactions?

A: Even if a quantum computer gets announced as immediately usable tomorrow, it is possible to do an emergency procedure to secure the funds of everyone who has not yet publicly released their public key or a signature ie. Winternitz signatures. Finality greatly mitigates the sync latency bottleneck, and the requirement for consensus participants to store historical blocks.

I'd also add that I expect light clients to be massively more viable in eth2 than in eth1. About the same order of magnitude load as a bitcoin light client to stay synced as opposed to eth1, where light clients are not light enough in practice to run on phones Any wiki, tips, or advice on how to proceed contributing and profiting for Ethereum?

A: Eth2 has no mining. Q: Approximately when is ETH issuance supposed to drop dramatically? I believe the figure I've come accross is 10x reduction in issuance, is this correct also? Further reductions would happen when the PoW chain stops entirely. If so, are there concerns exchanges will list ETH 2. Will this change? A: In Eth2 the economic security is not a direct function of the block rewards. Instead, it is a function of the total amount at stake. Q: As ETH 2. I'd say it's likely there will be a bi-directional bridge eventually though unlikely to happen in Even better than a bi-directional bridge based on light clients, which comes with non-negligible latency is native integration of Eth1 into Eth2 see here.

Q: Will the issuance rate be enough to incentivize validators given the competition from say DeFi products and will it be changed in the future if needed? But over time I do expect interest rates on ETH to slide up as more forms of staking become available eg.

I would think arbitrage would solve the issue but haven't thought too deeply on the subject myself. In paticular, if ETH 1. The greater the price delta, the greater the incentive to deliver a two-way bridge ASAP. Q: Is it still the plan that the frequently rotated notaries perform stateless validation of the blocks?

If yes, are there any insights into how much extra network overhead will sending blocks with merkle proofs incur? If no, is there any other mechanism to prevent adversaries that can corrupt a shard quickly from applying an invalid state transition?

Is it still the plan that the frequently rotated notaries perform stateless validation of the blocks? Now that execution engines are application layer, the answer is technically 0 : For execution engines that use large Merkle trees e.

Eth1 the rough estimate at one point was 8x. Validators can send a deposit of 32 ETH to the deposit contract which is then transferred to the beacon chain where they can begin validation. If Eth2 has an Eth1 execution engine, then it could be pretty painless, but even if not, an ERC20 token could just be transferred by copying over its state root.

Q: Sorry in advance if my questions are dumb but I didn't follow closely Ethereum 2. Rewards depend on the total number of validators, individual validator performance, and the gas markets. I'm proud to have been able to make a contribution in a beautiful piece of infrastructure I believe will radically change the world in a positive way :. Q: When sharding is released, will there just suddenly be shards in existence, or will there be a small but growing number of shards as usage goes up?

A: All shards will be launched at once. Growing the number of shards is probably unneeded complexity. Shards with lots of unused capacity will have lower gas prices attracting more users. Q: How can the average person help with eth2. Are there any organized efforts underway? A: Educating yourself enough to feel comfortable to participate as a validator would be fantastic : [Justin]. Q: After the scaling issues are solved will this be an economical platform to host backend logic on?

How will this compare to running your own server or going through a cloud hosting company in terms of cost and ease of use for light or heavy workloads? A: It's unlikely that Eth2 on its will be used as a backend for heavy workloads, the data throughput is likely just too high. That said, it works really well as a dispute resolution layer so a centralised service can run the backend optimistically and if someone disagrees with the execution, they can contest and have it resolved on Eth2.

Does the circulating supply of ETH 2. Unfortunately, it is not quite that simple. Eth2 is such a big upgrade over Eth1 that it is easier to implement as an entirely new chain than to upgrade. See Justin's ELI5 here for more. The large majority of it, yes. Rewards are also issued on the Eth2 chain so that increases the supply there too. A: My concern with doing something like this is its inflexibility. It is basically impossible to cover all the possible cases and even if we could, I'd argue that such an approach is too inflexible to handle the intricacies of exactly how something has failed.

Handling it on a case-by-case basis seems like a better solution to me. Q: Are there any plans to have the ETH 2. For example like proposed with Casper, every th block will be validated by PoS. Are there any plans to have the ETH 2. My best guess is this will happen in That's fine. Your balance will reflect the deposit, and the balance in excess of 32 ETH can be transferred to another validator phase 1 or to a shard phase 2.

A laptop should be sufficient. We'll know more in a few months when the numbers for block sizes and gas limits of shard blocks get finalized. Q: What's your opinion on Harmony one's approach to a high scalability smart contract platform using PoS? I read you're involved in discussions with them, have you helped each other in developing code? What's your opinion on Harmony one's approach to a high scalability smart contract platform using PoS?

I had a brief look at their whitepaper which seems to be inspired by Ethereum. So I guess my opinion is that their approach to scalability is great : [Justin]. Q: If Eth 2. Could the token be considered a security token? Do you think this will will be able to be managed by a Raspberry Pi 4? I'm aware that it is being worked out to have ARM64 binaries ready soon, the question is if it seems realistic not to have a computer running at home and instead running something smaller and cleaner environmentally speaking like a Pi4.

A: That depends on "N". I personally fully expect a RPi3 to be able to run at least one validator node, but we'll only know this when clients are closer to delivery. Q: Is there any clarity on the transition process regarding basic aspects like whether Beacon eth can be sold on exchanges for example, and whether the PoW chain knows of the Beacon eth?

Better asked, how do you ensure there is one network when there are two chains? That will come later, see here. The long term plan is to natively integrate Eth1 into Eth2. Q: Can you explain somewhat precisely how cross sharding communication would work. As in how does shard node A talk to shard node B without going through some sort of intermediary? If they can do this talking, why can't it be used for eth to talk to say bitcoin.

A: The intermediary is the beacon chain, or infrastructure optimistically predicting what will eventually get finalised in the beacon chain. Q: How would you objectively judge the level of technological advancement of current eth and current bitcoin as far as the very limited function of sending coins from A to B is concerned?

Q: Presuming you agree price drives security, and presuming you agree all cryptos reside in a very competitive environment, are there any plans to address the increased issuance that the Beacon chain would bring? And related, what would you say to the criticisms that have already been expressed whereby if you can reduce issuance by say 10x, you can increase it too. Or asked in a more open question manner, what do you think of this process through which increases or decreases of issuance are made?

A: It's possible Eth2 will cause net-negative issuance. The reason is that ETH gets burned via transaction fees. Pushing code to the beacon chain will also burn ETH. Finality, the penalties also burns ETH. Q: Will phase 0 contain any scalability improvements? How many transactions per second will Ethereum be able to handle with Sharding? This could be used to allow eg. That's a kind of scalability improvement, and an underdiscussed one imo.

Phase 0's purpose is tracking validators' states and producing randomness, asking about its scalability is not really meaningful. As a basic calculation, if each shard has the same throughput as Eth1. That said, the above numbers are kinda meaningless as Eth2 is designed to be used along with L2 scaling solutions like Rollups and OVM which could yield insanely high throughputs.

Q: Can you address points 2 - 4 in this tweet? There has not been that much work done on writing "policeman" software that would detect slashable violations by validators and penalize them, but I am not worried about this. Even if no one writes the code, that just means the security model degrades to honest majority, which is not the worst. If a client implements the code badly, there's no consensus risk, they could just ship with badly written code that only works half the time and it would catch half the slashable violations.

But this cannot enforced at the consensus layer, and we've already seen alternatives e. The spec clearly defines the slashing mechanism for surround votes. It is to an extent decentralised e. It would be nice to have something even more robust but this is research territory—not required for launch of Eth2. Q: Why aren't Beacon nodes rewarded? Wouldn't this allow the network to be more decentralized?

A: Validators are rewarded. Beacon nodes that are not validators are not rewarded in protocol because the protocol can't tell who's a beacon node vs just pretending to be one eg. Though non-validator nodes may be able to earn money in eth2 through incentivized light client protocols. Q: In regards to the recent proposal of vitalik to use the bcash chain as a short-term scaling solution until eth 2.

A: The main motivation for proposing an interim solution if you don't like bitcoin cash for political reasons, I also recommended ethereum classic, I think it's also a good choice is to make it easier for the work on building these layer 2s to be able to get off the ground in parallel with finalizing the work on the eth2 layer 1 itself.

In general, the ethereum community is large, so doing things in parallel is its advantage. I don't think EF will have to drive this. Q: Pretty basic but what's a realistic estimate of throughput after every is put together? A: Somewhere between and TPS depending on what execution environment and transaction type you're using.

Q: Could you say anything about the adoption of Ethereum Blockchain? Are there plans to create something like a B2B team actively approaching "qualified" companys? A: I'd say the Ethereum Foundation's primary focus is the consensus layer research, development, education, maintenance, etc. JD: As the spec currently stands, on average 2. JD: At the consensus layer block size and state size are basically orthogonal considerations.

Consensus-layer state size will always remain very small since we lean heavily on stateless clients. In theory application-layer state "L2 state" can grow up to 2. For execution engines without state rent, you can expect state to grow roughly as fast as Eth1 state grows today. Multiply that by shards and the situation is possibly not long-term sustainable. This is a significant reason why I personally believe we should progressively launch execution engines as opposed to allowing anyone to deploy EEs at launch , starting with an EE that has state rent.

JD: At the consensus layer non-validator nodes don't play any role. At the networking layer they can act as lubricants to relay message. They may also help create blocks for block proposers, i. JD: Nodes can be run by anyone who wants "direct" access to Eth2 e. Relayer nodes may be run by specialised businesses. Q:For someone that needs to run a node EtherScan , what will the resourcing look like?

The bad news is that bandwidth should grow by roughly x to keep track of all shards. But then again, that's not terrible news because a good internet connection especially server-class can handle 4 JD: For recent blocks we have quite sophisticated infrastructure, including proofs of custody in phase 1 and data availability proofs possibly phase 2. For historical blocks we rely on the ecosystem to keep them around.

Q:What will "historical blocks" be needed for. As in, if they were lost forever, what would be messed up? JD: Historical blocks are required to recompute application-layer state, and may also contain application-layer receipts. If they were lost forever which I don't expect would ever happen then applications without at least one synced full node may lose user state. JD: Hard to tell. Naive dApp design would suggest that dApps would aggregate into clusters within shard boundaries.

We are exploring dApp designs that are somewhat shard-agnostic, i. JD: Cross shard communication is a huge design space, just like "plasma" or "state channels". At the consensus layer we don't provide much infrastructure beyond crosslinks. I'm expecting significant experimentation in the early days followed by standardisation, somewhat similar to the token transfer design space and the ERC20 standard.

One big idea is the concept of "optimistic crosslink" which are shared between shards in advance of the real crosslinks, and which with high probability will match the actual crosslinks that get finalised. JD: Because shards would be stressing the beacon chain and shards would be under-utilising the beacon chain. Keep reading. Follow your interests down all the little paths and begin to build a mental model of the ecosystem.

If you find an error, typo, bug, etc, submit a PR. Also check out the issues and PRs in the spec repo. We are constantly discussing changes, fixes, updates and anyone can contribute. If you are a dev, open up one of the eth2. These allow you to touch the codebase, contribute a bit, get the lay of the land, and provide the foundation to tackle bigger issues from there. For implementation, there are multiple topics: Consensus layer - implement the spec! This can be made sustainable by doing two things: Lower the inflation e.

Completely removing inflation—relying on transaction fees only—would also be possible see below for security argument. Use Ethereum 2. This requires Ethereum 1. I don't see this as a practical solution, but I'm open to being convinced otherwise : [Justin Drake] A follow up: I'll add that if any specific user wants to migrate their application to the 2. Observing the emergent behavior is going to be super fascinating : [Danny Ryan] Q: Can we run the same validator on multiple machines - in order to avoid penalties if one machine was compromised?

Competitors definitely also have good ideas, and learning from each other is part of the game : [Justin Drake] Q: Do we need to run a full node to also earn from network fees or would the validator client handle this? VDF announcements to come in February : manufacturing hw is a costly, difficult endeavor often subject to unforeseen issues and delays. Short answer: yes, of course : Long answer: the ethresear. A: Why should anyone move to the beacon chain.

Will The beacon chain allow tokens to be send. Gutfeeling: how much "unsolved computer science problems" for phase 1, 2 and 3 roughly? I understood for phase zero it has arrived at 0. Will we consider some kind of tax baked into the system to ensure sustainability of core developments and infrastructure?

A: For how long is the 32eth locked up when running a validator client? Note, one of the design goals in the spec readme -- "to minimize complexity, even at the cost of some losses in efficiency" We're excited to see new efforts like the "Ethereum Cat Herders" and scheduled release cycles emerging in 1.

A: Eth2. Phase 0 - The Beacon Chain This phase is the launch of the core system level functionality of the new PoS chain the beacon chain. At this point the chain will have Casper finality, an RNG, shuffling into the various validator roles, and simulate crosslinking in the currently non-existent shard chains.

Phase 1 - Shard Chains data This phase is the launch of the shard chains, but only as a blockchain of data. Execution and state comes in phase 2. At this point, validators will additionally build these data chains and finalize the each shard back into the beacon chain via "crosslinks" and attest the availability of the data. These crosslinks were already being created in Phase 0, but had a stub for the shard hash being finalized. In this phase, that hash becomes "unstubbed".

Shard data chains begin to have some utility for applications that need a high availability data store. This is when users and applications will begin to migrate to Serenity and use it to it's full potential. Cross shard txs will be available at this point, and users can begin developing any number of "layer 2" execution engines on top. A: sounds Greetz A: Decentralized identity systems are definitely very interesting, but imo out-of-scope for blockchain base layers.

If you are a validator, you will receive rewards for operating a node and signing consensus messages. If you run some sort of application, it can be beneficial to run a beacon chain to directly sync the shards you need. You also might serve light clients and applications as a business. I fully expect some some entities to experiment with this model. If you are a hobbyist, you might just like running the protocol directly for self-sovereignty : [Danny Ryan] A2: Financial rewards through ETH inflation.

Do Quantum Computers pose a permanent threat to ownerless legacy addresses with significant funds Yes, definitely a threat. Q: How soon will staking pools be live when Ethereum staking goes live? A: Yes, Eth2. We need a trustless solution : [Justin Drake] A follow-up: Though I would add that trusted hardware could be a great thing for individual validators to use to increase their security.

Please message me if that sounds like your cup of tea : [Justin Drake] Q: What happens to the beacon chain in the event of a controversial hardfork on the Eth 1. I'm not aware of any unbiasable randomness schemes that only have strong liveness, other than VDFs : are there any theoretical problems in this space, relevant to Ethereum 2.

Or just good book recommendations in general A: I don't read many books nowadays. A: How do you prevent single shard corruption attacks? By randomly shuffling validators across shards. A: Ethereum 2. Note that storing shard blocks since genesis is not required. Early is realistic and still the target. A: Composability between shards is definitely unchartered territory but there are reasons to be optimistic: The shards are designed for homogeneity unlike, say, Polkadot or Cosmos to facilitate cross-shard communication.

The UI layer is also an opportunity to abstract away the boundary between shards. A: A few notes on client diversity: There's more than 6 clients being developed—it's closer to 8. I expect consolidation—a bunch of clients may not survive All the above have, to an extent, historically happened on Eth1. The minimum being set to 1 ETH currently. A: I think you are conflating two thigs here, slashing and the inactivity leak. Inactivity leak If your validator node goes offline for 18 days, and the beacon chain is not finalizing, then your balance will be reduced by "up to Slashing If a validator behaves provably maliciously, then they are slashed by having their balance reduced.

See here for more [Carl] Important to note that if you are offline, but the chain is still finalizing you only stand to lose approximately the same as you would have gained. Another reason to have a discorrelated setup from the rest of the network! A: I hope so! Trying to understand if you can stake without any risks unless you "intentionally" try to harm the network That's definitely the goal.

A: Building Eth2 on Eth1 would be a bad design decision for a few reasons: We would be constrained by the Eth1 gas limit, which would severely affect performance e. Eth1 does not have support for BLS The list goes on : [Justin] Q: I am considering to stake during phase 0, but i am a bit concerned about the inactivity leak. A few updates: A team of 3 ex-Intel people Simon, Sean, Kelly from Supranational is dedicated to the hardware aspects. Thx A: The current plan is that eth1 will be folded into eth2 as an execution environment via the stateless client approach, in which case, yes, contracts will keep working as expected.

If we get more warning, then we can get people to update to Winternitz on an orderly schedule. TLDR: we're fine. Eth2 should have a partial fee burning mechanism see EIP A: I'm not too worried: Transfers and exchanges can be used to redeploy "cheap" Eth2 coins for validation. Large holders e.

A: Is it still the plan that the frequently rotated notaries perform stateless validation of the blocks? A: That depends on what you mean by "Ether tokens". Is there an approximative release date? Concerning staking, how much is needed and do we know for now the rewards? What is the main point in eth2. Do you feel that the Binance Chain is an enemy to Ethereum?

A: Is there an approximative release date? January 3, at the earliest for phase 0. I'd say Q1 is likely. I'm proud to have been able to make a contribution in a beautiful piece of infrastructure I believe will radically change the world in a positive way : Do you feel that the Binance Chain is an enemy to Ethereum? A: Educating yourself enough to feel comfortable to participate as a validator would be fantastic : [Justin] Q: After the scaling issues are solved will this be an economical platform to host backend logic on?

For lighter use-cases it probably can, but this is more in the context of a dapp. A: The integration between Eth1 and Eth2 is a roadmap orthogonal to phases 1, 2, 3 of Eth2. Like Don't think so, at least not yet. A: Educating yourself enough to feel comfortable to participate as a validator would be fantastic : [Justin] Q: Is there any clarity on the transition process regarding basic aspects like whether Beacon eth can be sold on exchanges for example, and whether the PoW chain knows of the Beacon eth?

A: whether Beacon eth can be sold on exchanges for example Beacon eth will be sellable on exchanges when transfers are enabled in phase 1. A: Eth1 and Bitcoin are comparable for on-chain payments. Reasons: Even if no one writes the code, that just means the security model degrades to honest majority, which is not the worst One client implementing the code correctly is sufficient If a client implements the code badly, there's no consensus risk, they could just ship with badly written code that only works half the time and it would catch half the slashable violations.

I'll defer to Danny on wire protocol stuff. The code from Go Ethereum Geth officially enshrines the hard fork for block number 4,,, a time previously established by developers during an ethereum core team discussion on September With the Geth release, the network moves closer to implementing the first of two parts in the wider Metropolis upgrade.

The addition of the code to Geth is notable because it greatly increases the likelihood that the upgrade will happen at that time. Geth, which is maintained by developers employed by the Ethereum Foundation the Swiss nonprofit that manages development on ethereum more broadly , accounts for roughly 69 percent of all ethereum nodes, according to data from Ethernodes.

If the block time remains consistent between now and then, the hard fork — which will make previous versions incompatible with the wider ethereum network following the upgrade trigger — will officially occur on October Anyone running a ethereum node with Geth is requested to update their software to "ensure a smooth transition," the code release states.

The code release comes in spit of the recent spam attacks on the Ropsten test network, though those interruptions were not enough to deter ethereum developers from the work on testing Byzantium. As previously detailed by CoinDesk , the upcoming hardfork, which is the first part of a larger upgrade planned for the platform, will feature a variety of improvements including increased speed and ramified security. Certain changes may also eventually pave way to increase privacy on the ethereum blockchain.

Image via Shutterstock. The leader in news and information on cryptocurrency, digital assets and the future of money, CoinDesk is a media outlet that strives for the highest journalistic standards and abides by a strict set of editorial policies. CoinDesk is an independent operating subsidiary of Digital Currency Group , which invests in cryptocurrencies and blockchain startups.

As part of their compensation, certain CoinDesk employees, including editorial employees, may receive exposure to DCG equity in the form of stock appreciation rights , which vest over a multi-year period. CoinDesk journalists are not allowed to purchase stock outright in DCG. Layer 2. Cryptocurrencies have a bright future but are still too hard for most people to use, including those living in underserved communities.

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