La Banda del Carro Rojo (Hnos. Quintero)
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454c4c1a9f89e7a6bcbf8d2aa200b0c23f3e4a825cbb12c86a1394f0d2d975a6. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/948c5afa-d706-4b92-a0c5-4002889f85eb.json and https://artists.proofprofile.net/proofs/artist/948c5afa-d706-4b92-a0c5-4002889f85eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).