Is it sufficient for a witness to sign only the versionId of the entry?

[swcurran]

The following question came up in the review of PR #136.

@PatStLouis : Wouldn't just signing the versionId be sufficient since the versionId is a sort of hash of the entry? Meaning if the entry validation passes, a proof over the versionId only would be sufficient?

[swcurran]

By putting it over the entire entry, we have evidence that the witness at least had the entire entry in their possession. It doesn’t really change the storage requirements, and likely adds a negligable amount of time on the verification. Agree that it doesn’t really change the evidence that the resolver gains from the verification.