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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f94b1a4a567a221ef13b46d98fa7e3716d8bc6086d1de5cfaf2931c0769ef14. 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/69d9271a-def5-4882-8d6d-5b0803ec57a1.json and https://artists.proofprofile.net/proofs/artist/69d9271a-def5-4882-8d6d-5b0803ec57a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hay Que Liberar el Taponazo (Archivos, Vol. 1)
Huevos Canos / No Sé Qué Tienen Tus Ajitos
De Luna de Miel con el Veneno (Archivos, Vol. 4)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c5b23926e6e2b15ff1f66b0865c7944c35caae001af221a3b3779a98a4c4c7. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ES86B0900480.
Directo En Rne / Radio 3 (Archivos, Vol. 5) (En Directo)
Directo En Rne / Radio 3 (Archivos, Vol. 5) [En Directo]
¿Dónde Vas con Esa Pistola En la Mano? (Archivos, Vol. 2)
De calle y beso (la boca me sabe a sangre)
Virgen de la Caradura / No me beses en la boca (En directo)
Están Todos Muertos (Coronacovers Leonard Cohen) [Vol. 1]
Están Todos Muertos, Vol. 2 (Coronacovers Enrique Urquijo)
Están Todos Muertos, Vol. 1 (Coronacovers Leonard Cohen)
Todo Lo Hago Fatal / Pirata (En Directo)
Los Meses de Erre / Planeta Mentira / Maravilloso (En Directo)
Vuela Sirena / Nuestra Jerga / Iure (En Directo)
La Voz No Hay Quien la Calle (Ni Rejas, Ni Paredes)
Resaca. The Hank Over Spoken Word (Archivos, Vol. 3)
Van a Volver a Fusilar a Federico García Lorca
(Hoy Vengo a Confesar Que) Tengo Esclavos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5699aa43d009c562f0a9cc66bbfafbb7f861dc3c0f070b563da27350c44145. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES31E2412004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe081dca64c79225efe706d060d3167f6f67df374d30902305edc6a466c6ea157. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES31E2507061.