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 0xc751eb608b6ce7b437dbe42114c7418b1462886e1ce22344c7e056fae2e0bd1c. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4fda713f-e358-4f78-99c4-1b5847623724.json and https://artists.proofprofile.net/proofs/artist/4fda713f-e358-4f78-99c4-1b5847623724.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Let Them Know: The Story of Youth Brigade and Byo Records