What is the point here? Wikipedia tells me: > No proof mechanism is standardized but the data model is flexible enough to support various existing cryptographi

What is the point here? Wikipedia tells me: > No proof mechanism is standardized but the data model is flexible enough to support various existing cryptographic mechanisms, such as digital signatures. So why even have a standard at all? It is impossible to verify the proof using this standard, which is the main point of verifiable credentials, no? The cryptographer in me's eye is twitching, as I consider all the completely different cryptosystems that will get shoved into "proof" that one would have to support, none of which seem to be spec'd out. I guess I just don't get it. What does this actually help with?