• On Classes of Stuck Ether and Potential Solutions

    A Brief History Since Ethereum went live two and a half years ago, users and developers have often struggled with the usability and building on this new ‘Frontier’ of development. The issues began
  • A Postmortem on the Parity Multi-Sig Library Self-Destruct

    On Monday November 6th 2017 02:33:47 PM UTC, a vulnerability in the “library” smart contract code, deployed as a shared component of all Parity multi-sig wallets deployed after July 20th 2017,
  • Parity Technologies Multi-Sig Wallet Issue Update

    This week, as has been widely reported, a vulnerability in the Parity Wallet library contract of the standard multi-sig contract was found by an anonymous user. This user managed to gain access to
  • Security Alert

    Severity: Critical Product affected: Parity Wallet (multi-sig wallets) Summary: A vulnerability in the Parity Wallet library contract of the standard multi-sig contract has been found. Affected users: Users with assets in a multi-sig
  • Announcing Parity 1.8

    Winter may be coming but the moment you’ve all been waiting for has finally arrived: Parity Tech is excited to announce the release of the BIGGER and BETTER 1.8.0. This
  • Parity Technologies launches PICOPS!

    PICOPS (Parity ICO Passport Service) is a new service, created and hosted by Parity Technologies which enables members of the public worldwide to associate a single Ethereum address with their unique identity; more
  • Parity Bitcoin is now supporting SegWit, SegWit2x and Bitcoin Cash

    The Parity Bitcoin client (pbtc), released in April this year, is a full-node implementation of the Bitcoin protocol written in Rust. Our team is thrilled to announce its recent upgrade that includes support
  • Announcing Parity 1.7

    It has been all too long since our last release. Some four months have passed since the 1.6 series and over that time we've seen the rise of ETH and BTC, ICO
  • Security Update

    A quick update on the status of Parity Ethereum client. Bug Bounty There is now a significant amount in our bug bounty programme (many thanks to all contributors). As mentioned in a previous
  • Announcing the Bug Bounty Program

    As recent events have shown us, it's not always enough to have good programmers, open-source software and peer reviews in order to ensure no critical bugs make it through to release. While users
  • Security Alert

    Severity: Critical Product affected: Parity Wallet Affected implementations: Parity 1.5 or later Summary: A vulnerability in Parity Wallet's variant of the standard multi-sig contract has been found. Affected users: Any user with
  • The Multi-sig Hack: A Postmortem

    On Wednesday 19th July, 2017 a bug found in the multi-signature wallet ("multi-sig") code used as part of Parity Wallet software was exploited by parties unknown. As of the time of
  • Restoring & blank seed phrase

    It has come to our attention that a small minority of users have misunderstood a function within Parity Wallet, and in doing so have created insecure accounts. TL;DR: Don't use the "
  • Announcing Parity 1.6

    As Spring returns the blood to our blushing chops, I'm happy to come to you with news of our latest release. After a couple of weeks in lovely Castello Tesino on our (apparently)
  • Announcing Parity 1.5

    Well, it's that time again, folks. You find me writing this on the train back from our ten day Yuletide retreat-sprint. Most of the team (pictured below) spent 10 days in lovely Lipia
  • Announcing Parity 1.4

    I'm pleased to announce the release of the latest in the series of Parity. As the 1.3 series becomes our stable release with 1.3.10, 1.4 is elevated to beta
  • Onwards

    It's been a hectic few weeks for Ethereum and for Parity’s dev team. Some rather irresponsible individual found a flaw in the Ethereum protocol; notably several of the EVM’s operations were
  • Announcing Parity 1.3

    Another 7 weeks pass and I'm happy to announce a shiny new release of Parity! It has been a busy time for us (and the community as a whole!) with various events happening
  • Parity 1.2.2 released - Hard fork enabled

    Get the latest Parity here. The latest version of Parity has just been released - this build includes modification for the hard fork, improved performance when syncing and other bug fixes. If you
  • In support of a hard fork

    AN OPINION OF ETHCORE A shared experience of disbelief flooded through the Ethereum community a few weeks ago - not because hacks are unheard of - but because the sheer scale of this
  • The DOS vector and the Soft Fork for Miners

    GRIEFING THE NETWORK Recent blog posts have highlighted a previously noted issue with the type of transaction-blocking that the soft fork uses to freeze access to the DAO's funds. Namely that any transaction
  • Condition-Oriented Programming

    Condition-Orientated Programming (COP) is a hybrid approach between functional and imperative programming. Done properly it is a tool in your arsenal for writing safe, secure contracts. It helps make your contract code comprehensively
  • How we find common ground and settle our differences.

    To look at Ethereum social media today you might think that we had somehow been invaded by some obscure political subreddit. Words like ‘principles’, ‘ideologies’, and ‘zealotry’ are being thrown around. It has
  • Announcing Parity 1.2

    It has been longer than expected in the coming, but I'm happy to announce at long last the third major release of Parity, codenamed "Security". This release is the culmination of
  • Our DAO Response

    What can be done? Ideally, the DAO developers will find a way to extract the stolen funds without any protocol alterations (aka "hard fork"). However, such a plan, if feasible, will
  • Attack on The DAO: What will be your response?

    Two days ago a flaw was spotted in the contract code of theDAO - specifically a recursive call issue that exists in the function withdrawRewardFor. https://forum.daohub.org/t/bug-discovered-in-mkr-token-contract-also-affects-thedao-would-allow-users-to-steal-rewards-from-thedao-by-calling-recursively/4947/7
  • Parity: Stepping Up the Security Model 1: A modular approach to transaction signing

    A security flaw in Geth / Mist has been attracting some attention recently mainly because of the size of the loss of Ether suffered by the user affected. Almost 100,000 USD was lost
  • Announcing Parity 1.1

    A short 6 weeks since Parity 1.0, I'm happy to announce Parity 1.1, codename Alacrity. This is a mid-term release (we're half-way to 1.2 Civility) with mostly "under-the-hood"
  • Parity 1.0 is here!

    So it has been around 7 weeks since the 0.9 prerelease of Parity, which demonstrated the fastest and lightest fully compliant Ethereum block processing engine available. Now, about a week after expected,
  • Performance Analysis

    So with the latest benchmarks (available to see at parity.io), it's clear Parity has head and shoulders the fastest and lightest Ethereum block processing engine amongst the available clients. But aside from