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 0x79ea99e9215b4a92e1de938c0d30ecb5f4446a2ac03475e372fc6dae70a5da82. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53df410a-1fc4-42b6-804c-41bd6ba11cc1.json and https://artists.proofprofile.net/proofs/artist/53df410a-1fc4-42b6-804c-41bd6ba11cc1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summer Of Carnivals, Vol. 1 (Presented by Int'l Stephen)