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 0x249d0844b6f0050c76e8f18c1a0c7a2847f6817ace749343b061398d2c08d743. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ace7c0af-d4bc-4f25-a5c6-dd548acdb1de.json and https://artists.proofprofile.net/proofs/artist/ace7c0af-d4bc-4f25-a5c6-dd548acdb1de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Board in the House (Skit) [feat. Mister D]