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 0xa74dd4e80fc45c6d69e6aed7f293f71e073e1c0ea4044ac92285d0b3a448c0f6. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bf1bbd9-c415-436b-9533-e036fa499e85.json and https://artists.proofprofile.net/proofs/artist/3bf1bbd9-c415-436b-9533-e036fa499e85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Caelus Concept (Original Concept Soundtrack Vol. 1)