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 0xc47e57f7f94bcd9bbf12a5f208b9e29e7bcf0a43591245ca46d9aa0d2e3c402c. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7743f2b1-a4ac-472e-a11f-9db0d03ba1bf.json and https://artists.proofprofile.net/proofs/artist/7743f2b1-a4ac-472e-a11f-9db0d03ba1bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fireflies - Alternate Instrumental Version