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 0x0f80f8ba364d1eebaa16be9320b14e24aee4b97739ee02e76719d753be0cce5b. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23a796c2-7ddc-4f3b-ae35-731f5e3eb801.json and https://artists.proofprofile.net/proofs/artist/23a796c2-7ddc-4f3b-ae35-731f5e3eb801.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Michelle Birkballe & Band - Special Guest Rock Nalle (Live)