1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd61c2b5913a389d615bfb2e556c23bd68cef5f83ec092f1bd52cc3879fe75dae. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd7e5406-0388-4cbe-9a29-ddae2fb5066f.json and https://artists.proofprofile.net/proofs/artist/cd7e5406-0388-4cbe-9a29-ddae2fb5066f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Seleccion de tangos (El monito / Taconeando / Color de rosa / Boedo / Mala junta)
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 → block OTSBitcoinBlock must exist at that height 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 0xaccd05c2168e459705c36c46c49819822986ee7b9291f44b21008e451832c23e. 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/FR66F7900830.
Fantasias camperas y urbanas - segunda parte
Selección de tangos (El monito/Taconeando/Color de rosa/Boedo/ Mala junta)
El monito - Taconeando - Color de rosa - boedo - Mala junta
Canción para un hijo (arr. Juanjo Mosalini)
Musiques de cinémas - Déjouées avec des amis jazzmen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaca66bd685dafc17a3005f2de8ba2cda449fa0da3f14d69d547b80e004b601c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR1F39500210.
Thierry Caens : Portrait d'un trompettiste
Tangos y Milongas : The Heart of Argentinian Tango
Tangos y Milongas: The Heart of Argentinian Tango