Grupo didáctico-musical do Obradoiro, Escola de gaitas e zanfonas Universidade Popular do Concello de Vigo
{"copyright_id":"0xa0bbd7dd94e6763476062bea12557bdd072dd7c7171d1607ee104f711bc1f200","name":"Grupo didáctico-musical do Obradoiro, Escola de gaitas e zanfonas Universidade Popular do Concello de Vigo","registered_at":"2026-06-17T01:36:25Z","symbol":"NIM1240062","token_address":"0x78e4db290af82c740c7d4ce247284770e261aabc","type":"artist","uuid":"67474933-38d5-4d9e-9b8d-745e4fff5c61"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bbd7dd94e6763476062bea12557bdd072dd7c7171d1607ee104f711bc1f200. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67474933-38d5-4d9e-9b8d-745e4fff5c61.json and https://artists.proofprofile.net/proofs/artist/67474933-38d5-4d9e-9b8d-745e4fff5c61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Instrumentos Musicales Populares Gallegos (Galician Popular Musical Instruments)