1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d99bc775e2054a5a4830d4509d7bbcc74830d145d7324c11383c1baf019261. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/217225bc-373f-4bdd-b028-0d49054a32d3.json and https://artists.proofprofile.net/proofs/artist/217225bc-373f-4bdd-b028-0d49054a32d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Opponent (Original Motion Picture Soundtrack)
Hilma (Original Motion Picture Soundtrack)
Morbius (Original Motion Picture Soundtrack)
Horizon Line (Original Motion Picture Soundtrack)
I Am Greta (Original Motion Picture Soundtrack)
Fridays For Future (alternative version)
Queen of Hearts (Original Motion Picture Soundtrack)
Slaughterhouse Rulez (Original Motion Picture Soundtrack)
Child 44 (Original Motion Picture Soundtrack)