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 0x3165129ddbeece378e9bee4b4d9b4e33da3d643c5f06fdebc242fe296d1bc1a5. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64b5f646-7c40-497d-9e7f-41c42299ef82.json and https://artists.proofprofile.net/proofs/artist/64b5f646-7c40-497d-9e7f-41c42299ef82.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amazing Grace - Grace Greater Than Our Sin
We Gather Together - Come Thou Fount of Every Blessing
It Is Well with My Soul - Be Still My Soul