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 0x1c18f1afafd8e1a02d4f2bc85466f8fa148fb4e192e1b36e7ffd6b18a96f8089. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d28efa4-8916-484b-8be4-1fc4cde6953e.json and https://artists.proofprofile.net/proofs/artist/0d28efa4-8916-484b-8be4-1fc4cde6953e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dragonlance: Dragons of Autumn Twilight (Original Motion Picture Soundtrack)
Welcome to the Jungle (Original Motion Picture Soundtrack)
Basement (Original Motion Picture Soundtrack)
A Disturbance In the Force (Original Documentary Soundtrack)
Hell House LLC: Lineage (Original Motion Picture Soundtrack)