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 0x26dbab0679037c8b5630d0e99f92fb099a40ff021c2f8e6aaec2bcf8c3be43d3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/520960d4-27f7-4bb1-b822-87871ae21db8.json and https://artists.proofprofile.net/proofs/artist/520960d4-27f7-4bb1-b822-87871ae21db8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Digga Digga Doo / Choo Choo Cha Cha (El Maletero)
Choo Choo Cha Cha (El Maletero) - Remastered
Care to Cha-Cha-Cha / Batakum (Mono Version)
What Do You Want Amigo (Que Quiere Amigo)
Bolero Medley: Sabor En El Alma / Será La Realidad
Separala También! Cantando Tito Rodríguez
Medley: Güantanamera / Santa Isabel De Las Lajas
Medley: Guantanamera, Santa Isabel De Las Lajas
Bolero Medley: Sabor En El Alma/Será La Realidad
Separala Tambien! Cantando Tito Rodriguez
{"copyright_id":"0xc795b56b1e46d4f910561e3dd2d0ed7cff49a2424167fa04207bb2ee18b8eabc","isrc":"FR10S1543843","name":"Nitilingo Nititingo","registered_at":"2026-06-26T18:12:44Z","spotify_id":"7L8fzGRyure3Pkw7QbLbIy","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc795b56b1e46d4f910561e3dd2d0ed7cff49a2424167fa04207bb2ee18b8eabc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7L8fzGRyure3Pkw7QbLbIy.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7L8fzGRyure3Pkw7QbLbIy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ac38dc09c082603ebaaee0180569bff241c5e905ec4da811cf36448492d3ca. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2dYDiZaFDHKWw6t0PZw060.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2dYDiZaFDHKWw6t0PZw060.
Best Of Discos Fidel, Vol. 1 - Tesoros Musicales Desde Cuba