智能合约开发专用语言Solidity 0.2.1版发布 ：https://github.com/ethereum/solidity/releases/tag/v0.2.1
The core value proposition of Ethereum can be summarized with a single word: Synergy.
To give an example, just at launch Maker is going to integrate and thus synergize with at least this list of other Ethereum projects:
Augur - We give them a stable store of value, they give us users. We can also use their token as collateral for the Dai.
Slock - We use their product, the Ethereum Computer, as an easily distributed plug-and-play server to run our Keeper daemon which provides us decentralized price feeds and trading bots (meaning better Dai liquidity), we also give them a stable store of value, and can use their DAO token as collateral for the Dai.
EtherEx - We provide a stable store of value to allow for decentralized ETH speculation directly on the Ethereum blockchain using their service (The combination of our CDP system + EtherEx even allows for decentralized margin trading!), and in turn we get better access to liquidity and and a platform for raising money without having to require KYC and other user annoyances.
Digix - We can use their gold token as collateral for the Dai, increasing the collateral diversity with non-cryptocurrency assets.
Oraclize - We use their service as an additional layer of secure price feeds to make sure our system is robust and cannot easily be attacked through its oracle mechanisms, and in return we provide them with income that we earn from providing a better secured Dai.
Colony - We use their service to organize our army of community volunteers, ensuring people who do work for Maker gets paid accordingly even when it's on a decentralized ad hoc basis. We can also use their token as collateral for the Dai.
Otonomos - We use their service to allow us to use real world company stock as collateral for the Dai, which enables us to offer business credit as well as further diversify the collateral portfolio of the Dai with non-cryptocurrency assets.
It is the permissionless and turing-completeness of Ethereum that allows all of these projects to seamlessly integrate with each other as first class citizens, increasing the value and utility of each other, because we all write to the same virtual machine and use the same language and the same standards.
Each project in the list above becomes a multiplier on the existing value of our system, resulting in exponential, rather than linear gains, for every new project that integrates with the others. Similarly every time any one of the above mentioned projects gains a new user or somehow grows in size, it ripples through the list and positively effects every other project in one way or another. Another huge advantage is that all of the integrations and synergies listed above require zero direct interaction or collaboration between the projects - it just emerges by itself due to the open source nature and streamlined standards of Ethereum. Of course in most cases there is still direct collaboration between the projects in this early stage of the ecosystem, but it's still important to note that this isn't a requirement - this will become a huge advantage once the network starts to really scale.
The result of this inherent synergy is an unbeatable network effect in accordance with Metcalfe's law. Every time a VC or a banker asks me which blockchains are interesting to look at in the industry, I tell them the same thing: Ethereum has already won. It has reached critical mass and become what can best be described as an unstoppable, ever growing snowball.
Another way to put it is if we decided to build Maker on a different blockchain, we'd have significantly less users and liquidity, and would have to spend a lot more resources on building things that others have already built for us to use as first class citizens on Ethereum, and due to those factors, we'd most likely be dead or dying at this point.
So just for the sake of continued transparency I wanted to clarify the current list of things I have any kind of formal involvement in.
Ethereum Foundation (duh); focusing the bulk of my time here naturally, particularly on research and on ecosystem development.
Wanxiang: the company currently is engaging in a number of activities relating to pushing blockchain tech forward in China out of its base in Shanghai, particularly including the research/education non-profit Blockchain Labs and the VC fund Fenbushi. Fenbushi is in the process of making some substantial investments into Ethereum startups which will be announced soon; the non-profit side will have some interesting stuff announced soon as well. I'm involved in both of those groups (and am spending a lot of time developing out the ethereum ecosystem in China generally).
Ledger Labs (http://ledgerlabs.io ): Toronto-based blockchain/ethereum consulting, one of the co-founders is also a dev for http://ethereumwallet.com . Have shares, work with them when in Toronto though don't spend that much time at this point.
Clearmatics (http://clearmatics.com ): ethereum-based private blockchain financial applications. Advisor but with shares (~4%)
KryptoKit (http://kryptokit.com ): advisor, received ~5% shares 2 years ago though it has likely been diluted somewhat since then.
Augur (http://augur.net ): advisor, bought 15000 ETH worth of REP in the private pre-pre-sale.
Ledger (http://ledgerjournal.org ): crypto/blockchain-focused journal, reviewer.
For everything else I'm an uncompensated advisor.
以太坊C++客户端发布1.1.3版本 : https://github.com/ethereum/webthree-umbrella/releases/tag/v1.1.3
Christian Reitwiessner成为以太坊C++客户端新的首席开发者（Lead Developer），他也是智能合约编程语言Solidity的主要设计者。以前C++客户端首席开发者由前以太坊CTO Gavin Wood担任。
This means our priorities will be Solidity and Mix (the IDE and smart contract debugger), while the C++ implementation of ethereum/web3 (“eth”) will align its interface with the Go implementation Geth, so existing frontends like Mist, the Ethereum wallet, the Geth console and other tools can attach to both backends without changes.
On the other hand, this means that we cannot support the development of the C++ UI AlethZero into a fullyfledged dapp browser and would be happy to see its unique features (mainly the blockchain explorer) being integrated as a DApp into Mist.”
The foundation currently has ~1.65 million ETH, plus ~$750k in non-ETH assets. 1650000 * 6.1 + 750000 = $10,815,000. Based on our current ~$200k/month burn rate, that will last us ~54 months ~= 4.5 years. That said, we are planning some substantial expansions which will increase our expenses but also get casper and other fun stuff out the door much faster, and we are also starting to get interest for corporate sponsorships coming in, which could secure us a more sustainable funding path in the long term.
Mist 0.4.0(测试版7）发布： https://github.com/ethereum/mist/releases/tag/0.4.0，支持导入预售文件提币。
I explain blockchains as peer-to-peer cloud computers that collectively enforce a set of rules on a historical record that they create together. If the rules meet your needs, you can use the blockchain’s history as the source of truth for any information you want because no one can break those rules. Bitcoin’s rules define a currency: how are new tokens produced, how many are allowed, how they can be transferred from one person to another, etc. Ethereum’s rules define a process for defining new rules. This makes it a universal blockchain where rules for any interaction can be defined, and anyone can choose whether to treat its historical record as their source of truth.
The fundamental flaw of Proof of Work (PoW) is that the costs of attacking the system are equal to what is spent to run the system. High security thus can only be achieved at high operating costs. The idea is that the honest participants just outspend the dishonest.
This is already today highly inefficient, but it does work for Bitcoin. As soon as the block subsidiary starts reaching zero, the ratio between the Market Capitalization and the costs of attacking Bitcoin becomes critical. Details are presented here.
Why Proof of Stake?
Proof of Stake (PoS) promises to solve this problem. An honest validator is expected to have very low costs, compared to the costs an attacker would incur.
Another problem Casper tries to solve is to disincentivize censorship. The PoW schema of Bitcoin is, more or less, a zero sum game. This means, if a miner loses a block (it does not get included in the main chain/ it gets censored), all other miners benefit from their loss. PoS for Ethereum will not be a zero sum game but instead a coordination game, where the rewards for everyone are highest, if every participant can include their blocks.
Finally some scalability problems can be addressed more easily with PoS.
"The essential differentiating element between Bitcoin and Ethereum is what you can do on it and that’s enabled by the virtual machine and the programming language. In Bitcoin there’s a very simple virtual machine at each node and a very simple programming language. You can only write a very limited class of programs. On Ethereum there is a general purpose computer or virtual machine at each node and a very rich programming language so you can write whatever you can dream up, essentially.
It is possible to build decentralized applications on top of and outside of the Bitcoin protocol. Essentially when you do that you are sharing the data, but there is no real way to share the programs so you can’t really know that a specific program or process is operating to effect that data. Those things would have to be on a centralized server somewhere.
Ethereum’s core value with respect to Bitcoin is that unlike Bitcoin that requires specialist programmers to stack up cryptographic primitives outside of the protocol to try to keep things secure (if they’re trying to do something semi-sophisticated), for Ethereum, average programmers can build sophisticated decentralized applications taking advantage of the full security of the protocol. To a software developer, an average software developer, the dev process looks very similar to building a web application or a mobile app." Joseph Lubin
微软公司确定通过以太坊首次推出区块链服务 : http://www.8btc.com/microsoft-ethereum-blockchain-service
图形界面钱包Mist发布0.5.2版本：https://github.com/ethereum/mist/releases/tag/0.5.2 ， 请立即更新。