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 0xfba4b40b86618b2ad8d9316315124c626a572354d1182197a9618c0e482ffdfa. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f53037dc-39af-4baf-b2e0-1a5e6b8a8134.json and https://artists.proofprofile.net/proofs/artist/f53037dc-39af-4baf-b2e0-1a5e6b8a8134.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Wedding Song (...I will love you...)
30 Years of Pride - A Tribute to James Blundell