The clan ledger is a complete surname culture inheritance application main chain based on blockchain technology. It is a public chain application ecology of the surname inheritance culture initiated by the surname inheritance project. On the one hand, it can record the process of confirming the inheritance of surnames, valid identification, and changes. Based on the non-tamperable and traceable features of blockchain technology, this project records the transfer process of each surname inheritance to solve the problem of surname inheritance; the project solves the problem of copyright ownership in surname inheritance through the timestamp in blockchain technology. Evidence issues, and provide legal assistance for product copyright disputes in the surname inheritance archives; the platform uses blockchain technology to "digitize" the non-surname inheritance and confirmation rights, and become a unique ID card for surname inheritance, which is easy for everyone to identify; In addition , the unique identity will also be used on the inheritor to protect the creative rights of the inheritor.