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 0x4197070825760890d27526e700b5147ccd8e6d191c38b0574f8af6800f8597eb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e1f9806-56d6-42b6-9963-e5771837f4e6.json and https://artists.proofprofile.net/proofs/artist/6e1f9806-56d6-42b6-9963-e5771837f4e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Popurri ( La Cucaracha, EL Piojo Y La Pulga, Mi Cafetal, Capullito De Alheli, Oyeme Cachita)