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 0x3d9dc445c433c7ff35c8018988d81b5e17df137d22b0a413625d550736010ed5. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7248ffb-ce0f-4e61-b62b-23e0c4a76916.json and https://artists.proofprofile.net/proofs/artist/e7248ffb-ce0f-4e61-b62b-23e0c4a76916.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Camerata en guaguancó (En vivo) - Remasterizado
Danzón siglo XXI (En vivo) - Remasterizado
Serenata cubana (En vivo) - Remasterizado
Parque central (En vivo) - Remasterizado
Descarga pachanga (Tributo a Belisario López)
Danzón monarca (Tributo a Antonio Arcaño)
Cuando suena el chachachá (Tributo a Enrique Jorrín)
Tumbao a lo Paganini (Tributo a Roberto Ondina)
El tira tira (Tributo a Pancho el Bravo)
Harina con chicharrones (Tributo a José Antonio Fajardo)
Los 80: Homenaje a la Orquesta Aragón (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 → 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 0xa80912c76dd9afb88620bdc384512bc398b1fbb87a2cecd4c20e11821346d29f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CUA0D2000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a7d78e1317212b24e63833ac6049d0e84c5bf950ddd13faaf9c912225c3f77. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CUA0D2000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea70b65a0acae0e24009a2df3d00ef50227d486de23868f01c5ef019d80ab32. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CUA0D2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b14484ecc24c634e0e25b2b973e0fe2b5939f13813d9b40dd9d775a423e3410. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CUA021712216.