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 0xdf7bbb89050aed350985f088a4d9dd0603c3c6e26c242cf848c5084b27355f91. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34b481e1-17e7-46eb-86f4-6211bb208ccc.json and https://artists.proofprofile.net/proofs/artist/34b481e1-17e7-46eb-86f4-6211bb208ccc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
18 Zapateados Ahumala Calentano, Ahumala !!!