ChainCatcher message, ORC-20 is an open standard for ordinal tokens on the Bitcoin network, designed to enhance the functionality of BRC-20. It aims to be backward compatible with BRC-20 to improve adaptability, scalability, and security, while eliminating the possibility of double spending. However, ORC-20 is an experimental project and there is no guarantee that tokens created using this standard will have any value or utility; users must recognize the risks.BRC-20 is an experimental token standard on the Bitcoin blockchain, modeled after Ethereum's ERC-20. It allows programmers to create and send fungible tokens through the Ordinals protocol. (Source link)