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Update: We've released version 1.3.5 including networking hotfix for homestead 1.3.4.  Development of Ethereum started in December 2013 when two developers and a college dropout researcher decided to put their heads together and develop this amazing p...

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 that is not so ...

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 for launch ...

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 software project...

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-stage announceme...

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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 political risks a...

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 full gamut of...

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 community is ...

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. From a develop...

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 In the last p...

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 Ethereum pr...

This is the third and final post on a series on how to use the Ethereum Wallet to create your own autonomous organisations. On the first post we detailed how to create a token, and on the second we shown how to generate a digital democracy controlled b...

This is a second post on a series on how to use the current Ethereum tools to build smart contracts without needing programming experience. Download the latest version of the Ethereum Wallet, read the first part and let's have fun! Creating a token is...

A lot of things have happened in the past few weeks in the Ethereum ecosystem, so many that it might be hard for a casual observer to understand where we are and what's available out there. So I would like to use my first post here to give you an...

Special thanks to Vlad Zamfir for his work in developing many of the ideas behind prediction markets for content curation. For the past six years, people have been searching to try to find those elusive applications of blockchain technology that could...

Merkle trees are a fundamental part of what makes blockchains tick. Although it is definitely theoretically possible to make a blockchain without Merkle trees, simply by creating giant block headers that directly contain every transaction, doing so pos...

One of the major security challenges of the internet over the last twenty years has consistently been the rather simple problem of securing user accounts. Right now, users have accounts with hundreds of websites, and dozens of passwords, leading to lar...

With DEVCON1 a mere week away, the teams are excited and preparing to share all the great tools and technology the ecosystem has to offer. There will be hundreds of developers and dozens of talks including Nick Szabo, Vitalik Buterin, and Marley Gray f...

London, United Kingdom, October 28th - Ethereum is happy to announce that Microsoft will sponsor and attend DΞVCON1, the premier Ethereum developer conference. Marley Gray, Director of Technology Strategy US Financial Services at Microsoft said, "Micr...

London, United Kingdom, October 22nd - The Ethereum Foundation is pleased to announce the Keynote Speaker of Ethereum’s annual conference DΞVCON1, Nick Szabo. Nick’s keynote will focus on the history of the blockchain, smart contracts and assets on the...

Summary: Erroneous implementation of BLOCKHASH can trigger a chain reorganisation leading to consensus problems Affected configurations: All geth versions up to 1.1.3 and 1.2.2. All eth versions prior to 1.0.0. Likelihood: Low Severity: Medium Impa...

Over the last five days, myself, our executive director Ming Chan, and several others from the Ethereum team and Ethereum-based projects and businesses including Maker, String/Dfinity and Consensys have been visiting China and Hong Kong, where there ha...

In an effort to bring the community more information about the going-ons at Ethereum, we're planning to release semi-weekly updates of project progress. I hope this provides some high-level information without having to live on GitHub ;) The Go and C+...

Affected configurations: Issue reported for eth (cpp-ethereum).Likelihood: Medium

Many of you know that the Ethereum platform grew out of the realization that blockchains can go far beyond currency, together with a frustration with the limitations of previous projects. The core idea was simple: a blockchain with a built-in Turing-co...

The following are some interesting results on the performance of different miners over the course of the first 280,000 blocks of the Ethereum blockchain. For this timespan I have collected the list of block and uncle coinbase addresses; raw data can be...

DevCon 1 will be happening in London on November 9-13, a little over one hundred days since the Ethereum network launched. Over the last months, we’ve seen the network grow from a few hundred nodes starting on that one exciting and special night to a v...

The foundation is currently in the phase of restructuring its communications activities. Several members of our current communications team in London are soon leaving or reducing their involvement in the Foundation in order to pursue for-profit venture...

We are happy to announce our very first developer-preview of the Ethereum Wallet ÐApp. The point of this release is to gather feedback, squash bugs and, most importantly, get the code audited. Please note that this is a developer-preview and not the f...