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 0xcafd91d99ca0e14b80baa46d3a9917a9e6da83cc9fa31e05e7d6ea06ba400a3d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/720b1d58-12cc-4487-99f0-75f43e4f313c.json and https://artists.proofprofile.net/proofs/artist/720b1d58-12cc-4487-99f0-75f43e4f313c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Find Myself a Home - Live in France, 2017
Lesson Learned (Andy Solo) - Live in France, 2017
Streets of England - Live in France, 2017
Find Myself a Home - Live in France, 2017 / Jam Version