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 0x012c8775d3d44621273fdb1a75ac3f427aaf2a78cfc8a93d04ffdd7899e76716. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6714f8b-ae9e-4f05-af30-d2c909c578df.json and https://artists.proofprofile.net/proofs/artist/e6714f8b-ae9e-4f05-af30-d2c909c578df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Make Up Your Mind - Tommer Mizrahi Remix