Decentralized perpetual contract exchange Infinex announced a partnership with the Near Foundation to integrate Near's chain signature into the decentralized trading platform. Chain signature is a protocol that allows users to sign transactions on third-party blockchains from a Near account. Infinex said in a statement that the partnership will enable users to "easily control and interact with non-smart contract chains such as Litecoin and Bitcoin." Other chains supported by chain signature include Cosmos Chain, Dogecoin, and XRP Ledger. (The Block)