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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14dadba18645f9d54da4d0cb9a326b46632a6fc09456ecff1eeebb543f23ebe. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a830f8e-049e-430a-8c56-4b2ba33b9576.json and https://artists.proofprofile.net/proofs/artist/1a830f8e-049e-430a-8c56-4b2ba33b9576.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Montreal Spirit, a DTC Family Compilation
Strange & Dangerous Times (New American Roots - Real Music For The 21st Century)