BCANN is a decentralized blockchain domain name community. Founded in August 2018, BCANN is a non-profit international organization that brings together experts from the global blockchain community, business, technology and academic fields. BCANN is responsible for coordinating the blockchain unique identifier system and its secure and stable operation on a global scale. Including block chain protocol (BIP) address space allocation, protocol identifier assignment, blockchain domain name root system and decentralized identity system construction and management.