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 0xd06aaeb6d72ebf4bc2409c0d99aba6115270a70892d34b3719e86a3abaeaecb6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13e5c8ef-e312-438f-bc77-487a95d58ed1.json and https://artists.proofprofile.net/proofs/artist/13e5c8ef-e312-438f-bc77-487a95d58ed1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
He Looked Beyond My Fault (And Saw My Need)
Tears Will Never Stain the Streets of That City
Who's Gonna Teach My Children's Children