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We’re very excited to announce the official release of Bitcoin Core v0.12.0. A lot of hard work has gone into this release and it may just be the biggest one yet, with more significant improvements than any other before. Here are the major…

Ethereum is often described as a platform for self-enforcing smart contracts. While this is certainly true, this article argues that, especially when more complex systems are involved, it is rather a court with smart lawyers and a judge th…

Following hacking @ DEVCON1, Martin Swende is Nr. 1 on the leaderboard of the Ethereum Bounty Program. The bounty program is ongoing and the last bounty awarded amounted to 5 BTC. The program is open to anyone. With BTC Relay getting ready…

Although this is my first post in this blog, many people might already know me as the person behind Solidity. I recently took on the lead of the C++ team and would like to share my vision for the future development. Ethereum is a free soft…

Last month marked the 2 year anniversary of Ethereum's public announcement at The North American Bitcoin Conference in Miami, Florida, USA. Amid much rumour and excitement, a sizeable crowd mobbed the young Vitalik Buterin after his on-sta…

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Initially, bitcoin.org was used to host the original Bitcoin paper and became the homepage for the Bitcoin program . The site evolved into a general educational resource for Bitcoin, and is not affiliated with the modern Bitcoin Core proje…

Overview Malleability Fixes Who benefits? Further information Linear scaling of sighash operations Who benefits? Further information Increased security for multisig via pay-to-script-hash (P2SH) Who benefits? Further information Script ver…

We are extremely pleased and excited to announce the Segregated Witness Testnet ! All developers are encouraged to help begin testing and integration right away. This represents one of the most hotly anticipated and exciting developments t…

Blockchains are a powerful technology, as regular readers of the blog already likely agree. They allow for a large number of interactions to be codified and carried out in a way that greatly increases reliability, removes business and poli…

The following video shows commit activity in the Bitcoin Core repository during 2015. A full list of code contributors during this period can be found here . https://www.youtube.com/embed/FIt7GLxxIpY In 2015, the Bitcoin Core project relea…

The time is gone, the song is over, Thought I'd something more to say. -- Pink Floyd It is with no small amount of sadness that I must bid ye farewell. Like The Floyd’s work, in the time I’ve been involved with Ethereum, I’ve sampled the f…

If DEVCON1 proved anything in spades, it was certainly the enthusiasm, creativity, and momentum of the Ethereum developer community. Utilizing the never-before-seen potential unleashed by the Ethereum World Computer, our small-but-growing…

Bitcoin is a “peer-to-peer version of electronic cash that allows online payments to be sent directly from one party to another without going through a financial institution”. Our vision for Bitcoin is to expand the flexibility of the syst…

Now that Ethereum has launched and is rapidly nearing its Homestead phase, over the last few months we at the Ethereum Foundation have finally had the chance to have some breathing room and plan our strategies with a more long-term view. F…

Special thanks to Vlad Zamfir for introducing the idea of by-block consensus and convincing me of its merits, alongside many of the other core ideas of Casper, and to Vlad Zamfir and Greg Meredith for their continued work on the protocol I…

Special thanks to Gavin Wood for prompting my interest into abstraction improvements, and Martin Becze, Vlad Zamfir and Dominic Williams for ongoing discussions. For a long time we have been public about our plans to continue improving the…

Overview What specific technologies are included in the roadmap, and when can we expect them? Is the segregated witness soft fork equivalent to a 4 MB block size increase, a 2 MB increase, a 1.75 MB increase, or what? I keep hearing differ…

We, the undersigned, support the roadmap in Capacity increases for the Bitcoin system. We have been working on scalability for several years within the Bitcoin Core project and consider this the best possible continuation of our efforts. F…

This is the extended presentation of Segregated Witness by Pieter Wuille. https://www.youtube.com/embed/NOYNZB5BCHM