Banda de Música Nuestra Señora de las Angustias de Sanlúcar la Mayor
{"copyright_id":"0x534f1b8f3d10fc6d0b3a1982cfcac46e3b3b38d7a405d8bd9bc20e4d6c9f8cee","name":"Banda de Música Nuestra Señora de las Angustias de Sanlúcar la Mayor","registered_at":"2026-06-16T18:01:38Z","symbol":"NIM1131557","token_address":"0x4262a7bde7e6a81a0bfcfc28e45c9e7b38bac2ca","type":"artist","uuid":"51589f82-1e45-4b43-ae7e-05a34c19acc2"}
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 0x534f1b8f3d10fc6d0b3a1982cfcac46e3b3b38d7a405d8bd9bc20e4d6c9f8cee. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51589f82-1e45-4b43-ae7e-05a34c19acc2.json and https://artists.proofprofile.net/proofs/artist/51589f82-1e45-4b43-ae7e-05a34c19acc2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Marchas de Semana Santa. El Magnificat II
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4923034d975787814c4a7d01e5adcf9e705905a69cda0b0e35844a26463e5a3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5351604026.