Banda de Cornetas y Tambores Stmo. Cristo de la Victoria - León
{"copyright_id":"0xba9de9de7cc6acad8cd6e32cb0b49566e99df78aedd7da685fcf4e766dce85eb","name":"Banda de Cornetas y Tambores Stmo. Cristo de la Victoria - León","registered_at":"2026-06-16T17:24:24Z","symbol":"NIM1122677","token_address":"0x3270419e25b21998fdeb1fd3aef81ba4c585fd28","type":"artist","uuid":"4ef0658f-49ee-4b6b-82dd-ffa013da4f26"}
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 0xba9de9de7cc6acad8cd6e32cb0b49566e99df78aedd7da685fcf4e766dce85eb. 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/4ef0658f-49ee-4b6b-82dd-ffa013da4f26.json and https://artists.proofprofile.net/proofs/artist/4ef0658f-49ee-4b6b-82dd-ffa013da4f26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xb6fb6d2aee7aec2e8949ef56a3be201e77fad2e144a10756b06566277b6e2a55. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ES5352005073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb35f2be6bfe705b29008589b40c266badc8dc31a1b33fa48e8531d19d817a7. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:40:27Z), 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/ES5352005078.