Question about LensMintVerifier journal schema

[Chitrangath]

Hi, I'm Chitrangath — a GSoC 2026 applicant who submitted a proposal focused on the ZK proof pipeline and NFT minting work. I've been going through the codebase in detail and opened a small docs PR as a first contribution.
One thing I noticed: the LensMintVerifier contract accepts a seal and journal in verifyImageAuthenticity(), but the journal schema — what actually gets committed as public outputs — isn't formally defined anywhere in the repo. Is the format already decided, or is defining that a key part of the GSoC scope?
Really looking forward to contributing to this.