ChainCatcher message, the core developer of the SRC protocol announced that the indexer code is open-sourced on GitHub, allowing users to query and call the front-end interface. The SRC ecosystem includes three token standards: SRC20, SRC721, and SRC101: SRC20 supports the issuance of Tokens and NFTs; SRC721 is mainly used for NFT applications, with the OpenStamp platform currently using this token standard for stamp and NFT transactions; SRC101 is a customized domain service standard developed for the Bitcoin ecosystem by the domain service provider Bitname.The core developer of the SRC protocol stated that the open-source initiative will encourage more developers to participate and promote the further development of the Bitcoin ecosystem.