FEP-8b32: Object Integrity Proofs

[silverpill]

I started by introducing the concept of a controller document in FEP-521a:

FEP-521a: Representing actor's public keys

Update: #289 - FEP-521a: Update proposal - fediverse/fep - Codeberg.org Adding this paragraph: Actor object MUST be used as a controller document, as described in section 2.3 Controller Documents of Data Integrity specification. This is merely a clarification, and doesn’t require changing existing implementations. In other news, Hubzilla now supports FEP-521a

For FEP-8b32 the relevant part of specification seems to be section 4.7: Verifiable Credential Data Integrity 1.0.