Grupo Folclórico da Casa do Povo de Santa Cruz do Bispo
{"copyright_id":"0x1623dc9c15a040d0ea226a632fdbcbf4ada60845f5ce6f5850a654dede1d62bb","name":"Grupo Folclórico da Casa do Povo de Santa Cruz do Bispo","registered_at":"2026-06-17T01:09:20Z","symbol":"NIM1233591","token_address":"0x99cd45f1ff6ef376430f6542aca81d31b1a47919","type":"artist","uuid":"65db079f-5b7a-440b-a502-41beaca6eb2f"}
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 0x1623dc9c15a040d0ea226a632fdbcbf4ada60845f5ce6f5850a654dede1d62bb. 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/65db079f-5b7a-440b-a502-41beaca6eb2f.json and https://artists.proofprofile.net/proofs/artist/65db079f-5b7a-440b-a502-41beaca6eb2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).