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 0x6742b778436befc99ea04449ae968612f074911409bb89b070a02d13ff653510. Chain 2 (Bitcoin): anchored in block 954025 (2026-06-17T00:32:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/383102bd-fbdc-49f4-a4e0-66bca5cdfc21.json and https://artists.proofprofile.net/proofs/artist/383102bd-fbdc-49f4-a4e0-66bca5cdfc21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
En Vivo Desde el Malecon de Altata (En vivo)
Popurri el Sinaloense, la Chona, el Tucanazo, Tamarindo - En vivo
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 0xf6a885f620d73437114f501c774dafcdf8e58b7d86276238545339a8f347d15a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZFZ61947490.
Popurrí Cumbias Clásicas: El viejo del sombrerón, La parabólica, La suavecita, Oye
Popurrí Cumbias Baladas: Que vuelvas, No se va, La botella
Popurrí Zapateado: Cómo quieras quiero, A la antigua, Sangoloteadito, Alaska