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 0x5246d3c4d6873385de1f39aa5190f7db23fada3bc585482d1d454dd34e9c9131. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f6f4e88-3af3-414e-a45c-85bf2aaf0ff7.json and https://artists.proofprofile.net/proofs/artist/8f6f4e88-3af3-414e-a45c-85bf2aaf0ff7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Suena el Acordeon: Actuacion Especial de Pilar Beltran
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 0xebfad05c9998214394b4bc11d58e401126b3ab6929a52c3c281014df49bf13a4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42254468.
Magy Madrigal & Colaboracion de Laura Torres -La Reina del Falsete
Popurri Alegre-Recordando a Lucha Reyes /Caminito de Contreras / Uruapan / El Corrido de Chihuahua (Mezcla)
Popurri de Huapangos - El Hidalguense / La Cecilia / El Querreque / (Mezcla)
Popurri Huasteco - El Son Solito / El Caiman / El Toro Requeson (Mezcla)