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 0x8c29542f4004265efc34a68760e7636f6f79ea2066ff17f020c5980207bf232b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4568d5f6-9bbf-49f7-82c7-6be71cdade46.json and https://artists.proofprofile.net/proofs/artist/4568d5f6-9bbf-49f7-82c7-6be71cdade46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Smile Back (Original Motion Picture Score)
String Quartet in E Minor: I. Allegretto
Full Circle (Soundtrack from the Max® Original Limited Series)
Presence (Original Motion Picture Soundtrack)