Ana-Maria Vera
type: MusicGroup
description: Ana-Maria Vera (born 15 April 1965 in Washington, D.C.) is an American pianist of Dutch and Bolivian origin. Her father (Mario Vera) was born in La Paz, Bolivia of mixed Spanish and Aymara heritage; h
popularity: 2
followers: 69
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  value: 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
subject of: OpenTimestamps Proof of Existence
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track: Suite Populaire Espagnole, de Siete canciones populares españolas: II: Nana [Suite Populaire Espagnole, De Siete Canciones Populares Españolas]
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  by artist: Manuel de Falla
  by artist: Leticia Moreno
  by artist: Ana-Maria Vera
  in album: Spanish Landscapes
    type: MusicAlbum
    date published: 2013-01-01
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  additional property: 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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-08-01T03:13:03Z
  audio: Suite Populaire Espagnole, de Siete canciones populares españolas: II: Nana [Suite Populaire Espagnole, De Siete Canciones Populares Españolas]
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    additional property: Valence (Positivity)
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      value: A
    additional property: Mode Name
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track: Sérénade A Dulcinée
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  by artist: Leticia Moreno
  by artist: Ana-Maria Vera
  in album: Spanish Landscapes
    type: MusicAlbum
    date published: 2013-01-01
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  additional property: OTSTimestamp
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  additional property: 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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T17:23:26Z
  audio: Sérénade A Dulcinée
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track: Tango, De España, Op. 165, Nº2

Loudness (dB)
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value: -27.371

Key Name
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Mode Name
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Tango, De España, Op. 165, Nº2
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duration: PT2M15S
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by artist: Isaac Albéniz
by artist: Fritz Kreisler
by artist: Leticia Moreno
by artist: Ana-Maria Vera
in album: Spanish Landscapes
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: classical-piano
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additional property: OTSTimestamp
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additional property: 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Tango, De España, Op. 165, Nº2
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