Commits should form a merkle tree

[joonas-fi]

Commit should have a hash that is based on parent commit's hash and current commit's changed files' hashes.

In the far future we could have a ledger service that publicizes hashes each day to Twitter or some other service that doesn't allow edits without anyone noticing.

This way just by pointing to a public ledger entry we can prove that a certain file with certain content was committed to Varasto. All this can be proven without disclosing entire contents of Varasto or other files' contents or metadata.

Merkle tree computation could have a codename angela with a link to this pic: