CLI utility for checking Planet seal proofs. Documentation
Seal is a mechanism for cryptographically proving that a note is created before a specific time.
Seal works by periodically rolling up Planet's event log into a Merkle tree and submitting the root of the tree to the Certificate Transparency public ledger by requesting a certificate for the domain name [root-hash].production.planet-seal.net. Once the proof for a note is generated, you can download it through the "Seal" entry in the note menu.
$ ./sealcheck validate ./seal_proof.json
SealCheck: ./seal_proof.json
Validation OK. Certificate issued at 2022-06-01 01:12:23 +0000 UTC.