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 0xf4740ffb8b6082fc31a2b6f2f8e2380a496d33fc12eddfcd90b3d429d2b5d996. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/185a6f83-b0e7-4b80-bb41-82b8be7ffd6d.json and https://artists.proofprofile.net/proofs/artist/185a6f83-b0e7-4b80-bb41-82b8be7ffd6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
VOCANTIS (From Vocantis Roleplay: A Cidade do Grito)