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 0x31fc08341fc2a685af224f34963bb5984e1f0a0190611091680127699f76ac73. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87ecceee-e930-4c9b-8efb-338e2b4b2e52.json and https://artists.proofprofile.net/proofs/artist/87ecceee-e930-4c9b-8efb-338e2b4b2e52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Train to the End of the World Original Soundtrack
Train to the End of the World -main theme-
Train to the End of the World -darkness-
Black Panther Delivery Theme -instrumental-