System and method for decentralized-identifier creation

A non-transitory computer-readable storage medium for blockchain-based decentralized-identifier creation, associated with a server and configured with instructions executable by one or more processors to cause the one or more processors to perform operations comprising:

• obtaining a request for creating a decentralized identifier (DID) for a subject, wherein the request comprises a public key of a cryptographic key pair;
• creating, based on the public key, a blockchain account associated with a blockchain;
• creating the DID based on information associated with the blockchain account;
• determining that the DID is not duplicative of any existing DID associated with the blockchain;
• generating a DID document corresponding to the DID, the DID document comprising a status associated with the DID indicating that an authentication of the subject's real-world identity is pending, wherein the determining that the DID is not duplicative of any existing DID associated with the blockchain is a precondition for obtaining the DID document;
• storing a mapping relationship between the DID and a dummy account identifier;
• generating a blockchain transaction for adding the DID document to the blockchain;
• sending the generated blockchain transaction to one or more blockchain nodes associated with the blockchain for adding the generated blockchain transaction to the blockchain;
• receiving, from an external system, a proof of a real-world identity authentication for the subject;
• in response to receiving the proof of the real-world identity authentication:
• updating the status associated with the DID to indicate that authentication of the subject's real-world identity is complete;
• and
• storing a mapping relationship between the DID and an account identifier associated with the subject, wherein the account identifier corresponds to an account of the subject maintained by a business entity.

A server system for blockchain-based decentralized-identifier creation, comprising a processor and a non-transitory computer-readable storage medium storing instructions executable by the processor to cause the system to perform operations comprising:

• obtaining a request for creating a decentralized identifier (DID) for a subject, wherein the request comprises a public key of a cryptographic key pair;
• creating, based on the public key, a blockchain account associated with a blockchain;
• creating the DID based on information associated with the blockchain account;
• determining that the DID is not duplicative of any existing DID associated with the blockchain;
• generating a DID document corresponding to the DID, the DID document comprising a status associated with the DID indicating that an authentication of the subject's real-world identity is pending, wherein the determining that the DID is not duplicative of any existing DID associated with the blockchain is a precondition for obtaining the DID document;
• storing a mapping relationship between the DID and a dummy account identifier;
• generating a blockchain transaction for adding the DID document to the blockchain;
• sending the generated blockchain transaction to one or more blockchain nodes associated with the blockchain for adding the generated blockchain transaction to the blockchain,
• receiving, from an external system, a proof of a real-world identity authentication for the subject;
• in response to receiving the proof of the real-world identity authentication:
• updating the status associated with the DID to indicate that authentication of the subject's real-world identity is complete;
• and
• storing a mapping relationship between the DID and an account identifier associated with the subject, wherein the account identifier corresponds to an account of the subject maintained by a business entity.