The NEAR Protocol has unveiled Chain Signatures during the Chain Abstraction Day, a groundbreaking feature that enables NEAR accounts and smart contracts to sign transactions across multiple blockchains, including Bitcoin, Ethereum, Cosmos chains, DogeCoin, and XRP Ledger, without requiring native gas tokens from those networks. This innovation, secured by EigenLayer and supported by NEAR stakers, is part of a decentralized MPC network designed to simplify the user experience by providing multichain access through a single NEAR account. It addresses the fragmented blockchain ecosystem and is poised to redefine DeFi and cross-chain interactions. The introduction of Chain Signatures was discussed in various forums, highlighting its potential to significantly improve the blockchain user experience.