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 0x0f1fd8ed7cb12071c53bc6b8c070a0a1ba713f1ebda7c39a1b4297ca75204905. 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/b4261564-1c17-42d4-8a00-69bbcbf5eb7c.json and https://artists.proofprofile.net/proofs/artist/b4261564-1c17-42d4-8a00-69bbcbf5eb7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Who Would I Be If I Never Let You Get Your Hands Around Me?