At the time of this issue, the DID spec mentions that:
If a public key does not exist in the DID Document, it MUST be assumed the key has been revoked or is invalid. The DID Document MAY contain revoked keys. A DID Document that contains a revoked key MUST also contain or refer to the revocation information for the key (e.g., a revocation list). Each DID Method specification is expected to detail how revocation is performed and tracked.
Currently, the IPID method doesn't have any specification on how the revocation should be performed and tracked.
There is an open issue and we hope to see further developments.
Public Keys
At the time of this issue, the DID spec mentions that:
Currently, the IPID method doesn't have any specification on how the revocation should be performed and tracked.
There is an open issue and we hope to see further developments.