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genre: opera
description: Alexandrina Pendatchanska (sometimes written as Alexandrina Pendachanska) () (born 24 September 1970) is a Bulgarian operatic soprano. Increasingly, she is known professionally as Alex Penda. Career
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followers: 833
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additional property: OTSVerifyInstructions
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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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album: Donizetti: Parisina D'Este
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  date published: 1999-01-01
album: Giuseppe Verdi: Duets From Operas
  type: MusicAlbum
  date published: 1997
album: Opera Arias (Soprano): Pendatchanska, Alexandrina - Gounod, C.-F. / Massenet, J. / Rossini, G. / Bellini, V. / Verdi, G. / Tchaikovsky, P.I.
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  date published: 1995-01-01
album: Младостта задължава
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track: Idomeneo, K. 366, Atto I Scena 6: No. 4, Aria "Tutte nel cor vi sento" (Elettra)
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  by artist: Freiburger Barockorchester
  by artist: Alexandrina Pendatchanska
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    date published: 2009-05-22
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    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: 2026-07-02T03:55:08Z
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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: 2026-07-02T03:55:08Z
  audio: Idomeneo, K. 366, Atto I Scena 6: Recitativo "Estinto è Idomeneo?" (Elettra)
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track: Idomeneo, K. 366, Atto III Scena 3: No. 21, Quartetto "Andrò ramingo e solo" (Idamante, Ilia, Idomeneo, Elettra)
track: Idomeneo, K. 366, Atto I Scena 4 - 5: Recitativo "Prence, signor" (Elettra, Idamante) - Recitativo "Ma quel pianto che annunzia?" (Idamante, Arbace, Ilia)

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Idomeneo, K. 366, Atto III Scena 3: No. 21, Quartetto "Andrò ramingo e solo" (Idamante, Ilia, Idomeneo, Elettra)
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duration: PT5M29S
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by artist: Wolfgang Amadeus Mozart
by artist: Bernarda Fink
by artist: Sunhae Im
by artist: René Jacobs
by artist: Freiburger Barockorchester
by artist: Richard Croft
by artist: Alexandrina Pendatchanska
in album: Mozart: Idomeneo
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  date published: 2009-05-22
popularity: 9
genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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: 2026-07-02T03:55:08Z
audio: Idomeneo, K. 366, Atto III Scena 3: No. 21, Quartetto "Andrò ramingo e solo" (Idamante, Ilia, Idomeneo, Elettra)
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Idomeneo, K. 366, Atto I Scena 4 - 5: Recitativo "Prence, signor" (Elettra, Idamante) - Recitativo "Ma quel pianto che annunzia?" (Idamante, Arbace, Ilia)
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explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bernarda Fink
by artist: René Jacobs
by artist: Freiburger Barockorchester
by artist: Kenneth Tarver
by artist: Alexandrina Pendatchanska
by artist: Sunhae Im
in album: Mozart: Idomeneo
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  date published: 2009-05-22
popularity: 8
genre: classical
genre: classical-era
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Idomeneo, K. 366, Atto I Scena 4 - 5: Recitativo "Prence, signor" (Elettra, Idamante) - Recitativo "Ma quel pianto che annunzia?" (Idamante, Arbace, Ilia)
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