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 0x1b02025a1046e50279c9349ee1708d6cf90beb5990e79b32ad3c5be81b085b1f. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a65fde5-5d17-4e56-b8a3-5b3129efabdb.json and https://artists.proofprofile.net/proofs/artist/3a65fde5-5d17-4e56-b8a3-5b3129efabdb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Strike Back (Original Television Soundtrack)
Strike Back (Music from the Cinemax Series)
Strike Back (Original Television Soundtrack, Vol. 2)
Endangered Species (Original Motion Picture Soundtrack)