A system for credential storing and verifying includes an interface and a processor. The interface is configured to receive an indication to register a credential. The processor is configured to indicate to store in a distributed ledger a DID document associated with a holder identifier using a smart contract. Storing using the smart contract employs a dual signature authentication scheme to authorize storing based at least in part on an individual signature and a ledger writer signature. The processor is further configured to indicate to store in the distributed ledger a schema associated with an issuer of the credential using the smart contract and indicate to store in the distributed ledger a credential definition associated with the schema using the smart contract.