Coro de la Hermandad del Rocío de Huelva
{"copyright_id":"0x1a55704dc0b9e1cd3060dccf489b8c8fbc408caaefa5630f80d0a90f39cf4997","name":"Coro de la Hermandad del Rocío de Huelva","registered_at":"2026-06-21T08:10:49Z","symbol":"NIM1871602","token_address":"0xaeecefaf397a71af3497169e0fa157c24e26f931","type":"artist","uuid":"e5ad12f8-e5f5-4814-ba4d-08d974a38db1"}
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 0x1a55704dc0b9e1cd3060dccf489b8c8fbc408caaefa5630f80d0a90f39cf4997. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5ad12f8-e5f5-4814-ba4d-08d974a38db1.json and https://artists.proofprofile.net/proofs/artist/e5ad12f8-e5f5-4814-ba4d-08d974a38db1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).