Bitcoin

Bitcoin.org warns that upcoming Bitcoin Core releases may face state-sponsored attacks and urges users, especially in China, to verify binaries carefully.

A bitcoin miner running version 0.8.0 created a large block (at height 225,430) that is incompatible with earlier versions of Bitcoin.

A flaw in Android’s secure random number generation makes all Android wallets vulnerable to theft, including those from Bitcoin Wallet, blockchain.info, BitcoinSpinner, and Mycelium Wallet.

Browse Bitcoin Improvement Proposals by number, title, type and current repository status.

Some businesses, including Coinbase, Xapo, and BitPay, agreed to adopt a contentious Bitcoin hard fork in November. This hard fork is not supported by most users and developers.

The Bitcoin.org blog archive covers project updates, contributor news, Bitcoin Core releases, and articles from 2015 to 2019.

Users of Bitcoin-Qt or bitcoind versions before 0.8.0 must upgrade by May 15, 2013, or apply a workaround to avoid a software bug.

The network-wide alert system is retired; no Bitcoins are at risk. Users should upgrade wallet software to remove the alert.

In June 2010 the Bitcoin reference software version 0.2.10 introduced a change to the protocol: the 'version' messages exchanged by nodes at connection time would have a new format that included checksum values to detect corruption by broken networks.

Bitcoin Core versions 0.9.0 and earlier use a vulnerable version of OpenSSL that exposes memory to remote attackers.

The page shows the current Bitcoin price, price charts in multiple currencies, and conversion tools using independent market data.

The page explains Bitcoin.org’s ownership, governance, mission, contributors, funding, and commitment to neutral education.

The page provides Satoshi Nakamoto’s original Bitcoin white paper and translations of the document introducing Bitcoin’s peer-to-peer cash system.