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 0xe996e1b36555a59bbf689c9de2a3496452787e2da9b678ee98881174c39badf5. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd54a57d-9f1b-4391-8f0b-853b4f80d7f5.json and https://artists.proofprofile.net/proofs/artist/dd54a57d-9f1b-4391-8f0b-853b4f80d7f5.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 0xfd4238483970a966e0740d89060ae07834a7af94614dff55277d7a04d72a7e53. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZNJV2314365.
El Amor Mas Grande del Planeta/Como Quema el Frio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9763c670bf8b48c4513784688e6893ef2fc059a0a9c65ffa6ecb6a02b4041533. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:28:49Z), 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/QZNJV2314351.
Antahuara/Casarme No/Amor Vuelve/La Hembra/Te Pido Que Me Mires un Poquito Mas
Corazon de Acero/Me Vas a Extrañar/Ni Si Quiera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8cec3275d47b8057ebc095b4e5501ca2a10a9ea0fbd1a8c4065de0bf9e7f34. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:26:54Z), 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/QZ5AB2440446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11aa3db06d67d614b7227f67a375f825b44e248f6bd7cd62e77d79d26686a65f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZ5AB2440442.
Sera el Amor/ Si Te Marchas/ Flor de un Dia / Olvido / Vanidad / Computadora (Cover)
Adoro / Amor Se Escribe Con Llanto / Piensa en Mi