Lee "Scratch" Perry (born Rainford Hugh Perry; 20 March 1936 – 29 August 2021) was a Jamaican record producer, songwriter and singer noted for his innovative studio techniques and production style. P
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 0xb4805b35d38f6a554600f97d9e792489ee23b4ac4c294375b4cccd981bf55275. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7e8c579-dd0e-4729-b49e-c15e460ab785.json and https://artists.proofprofile.net/proofs/artist/b7e8c579-dd0e-4729-b49e-c15e460ab785.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).