The rare platform takes NFT as the starting point, but it has built the whole hyper-universe ecology. Metauniverse is a space-time that carries virtual activities, and its core lies in credibly carrying people's asset rights and digital identity. With the creation of PGC and UGC, virtual scenes are gradually enriched, the new paradigm of NFT digital assets is gradually accepted by the public, the open economic system based on smart contracts is developing rapidly, and Defi's ecology in lending, trading and currency stability is becoming more and more perfect, but social activities related to credit are missing. Facing the problem of traditional Internet digital identity, decentralized identity has become the key to solve the problem. Do you still need to spend a lot of manpower, material resources and financial resources to do this?