Verify a ZIP
Recompute a snapshot hash and look it up on chain.
Drop an exported ZIP on the verify page. The page rebuilds the manifest in your browser, shows the hash and every line, and asks the contract which versions anchored it. If the ZIP was repacked into a single top folder, the page tries the files without that folder too.
You can rebuild the same hash with any SHA-256 and keccak256 tool: no code from this site is needed.