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      date published: 2026-07-31T12:24:41Z
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    by artist: Luis Gurevich
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    genre: rock-nacional
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      value: 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
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:53:27Z
    audio: Amaneceres
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  track: Maluco Beleza
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    subject of: OpenTimestamps Proof of Existence
    audio: Maluco Beleza
album: Curva (Edición 2022)
album: & 3Electrico
album: El Alma Secreta de las Cosas
album: Piano 2
album: La Noche
album: Electrópolis
album: El Infierno De Masoch
album: Canciones de Amor
album: Vamos Andando

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OTSVerifyInstructions
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value: 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

OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Maluco Beleza
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Curva (Edición 2022)
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date published: 2022-08-13
track: Pulso Negro (feat. Kubero Díaz, Miguel Tallarita, Juan del Barrio & Juan Carlos Marras)
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  by artist: Miguel Tallarita
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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& 3Electrico
type: MusicAlbum
date published: 2016-06-10

El Alma Secreta de las Cosas
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date published: 1993-06-10

Piano 2
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date published: 2024-09-10

La Noche
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date published: 2024-09-10

Electrópolis
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date published: 2024-09-10

El Infierno De Masoch
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date published: 2024-09-10

Canciones de Amor
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date published: 2024-09-10
track: Daniela
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-08-01T00:40:43Z
  audio: Daniela
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Vamos Andando
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date published: 2024-11-12