For the future of decentralized publishing to work, it is essential to have a global, decentralized, and resilient digital content registry as the cornerstone. International Standard Content Number, abbreviated as ISCN, is a metadata framework for digital content on the LikeCoin chain. ISCN is like a digital content ID; helps to identify a specific digital content, records the content metadata, the intellectual property rights, and the stakeholders of the creation. ISCN also represents the property right layer of LikeCoin NFT, it records the relationships between the content and creator.