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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc0509e4b014c69457c955615c234186dc8d83f14c5b7b17194ca9f762244af. Chain 2 (Bitcoin): anchored in block 953736 (2026-06-15T03:21:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98adf7bb-3fcc-4577-b932-03d9ea57b7a1.json and https://artists.proofprofile.net/proofs/artist/98adf7bb-3fcc-4577-b932-03d9ea57b7a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Secret (From Original Motion Picture Soundtrack, 'Phea')
PHEA (Original Motion Picture Soundtrack)