Bitcoin
ZK Proofs Come to Bitcoin, Roxom Launches Bitcoin-Based Stock, Commodities and Futures Exchange
July 25th: BitcoinOSBitcoinOS, a network of Bitcoin-based rollup chains, has verified the first zero-knowledge (ZK) proof on the Bitcoin main chain. ZK cryptography is seen as a key technology for scaling the blockchain’s throughput and utility, but the technology is complicated and computationally intensive — meaning it was unclear if or when it would come to the comparatively basic Bitcoin network. According to the BitcoinOS team, “This is the first permissionless upgrade to the Bitcoin system and the first time Bitcoin has been upgraded without a soft fork.” Bitcoin is now “infinitely upgradable,” the team told CoinDesk, “while requiring no changes to the consensus code.” BitcoinOS aims to be the “ultimate implementation of a Bitcoin rollup system,” eventually serving as a bridge connecting any number of rollups — fast, cheap layer-2 blockchains that are secured by the Bitcoin blockchain and ZK proofs.