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 0x6c0f2b2b2b474106c29dca7d2e1ff85baf3bfde655886d449315fc9e172816cf. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb206bf1-78b7-43f5-b85d-197748ead5f9.json and https://artists.proofprofile.net/proofs/artist/fb206bf1-78b7-43f5-b85d-197748ead5f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sentimental Traveler - Without Percussion