Jessy may refer to: Given name Jessy Blackburn (1894–1995), British aviation pioneer Jessy Bulbo (born 1974), Mexican singer-songwriter Jessy Benet (born 1995), French professional footballer Jessy C
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa106760b32088d6b114c7fcb255957e9f5b69083a056205d9192c566ab90a603. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7dc93723-95ee-4d88-8d13-5d896205885b.json and https://artists.proofprofile.net/proofs/artist/7dc93723-95ee-4d88-8d13-5d896205885b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).