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 0x3ecb4231e05f7e53a214f48a1fe6dc4d23b68f84a639daef3441f234bb48b4de. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4de7c72-709f-4e77-b4e0-869c4cc9dd4e.json and https://artists.proofprofile.net/proofs/artist/f4de7c72-709f-4e77-b4e0-869c4cc9dd4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hall Of The Mountain King (I Dovregubbens Hall)
Hall Of The Mountain King (Richters Scale Mix)