Katalin Károlyi
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genre: minimalism
description: alt=|thumb|Sunday, May 27, 2018, at the Esperanza Iris City Theater. Katalin Károlyi is a Hungarian mezzo-soprano, noted for singing in Baroque opera, particularly those directed by William Christie.
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followers: 71
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album: Gerald Barry: The Importance of Being Earnest (Live)
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  date published: 2014-11-04
album: Hungarian Songs: Bartók, Kodály & Ligeti
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  track: Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: III. Asszonyok, asszonyok
  track: Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: II. Istenem, istenem
  track: Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: IV. Annyi bánat az szűvemen
album: Cage: Works for Percussion, Vol. 2 (1941-1950)
  type: MusicAlbum
  date published: 2014-11-01
album: Nathan Davis: Hagoromo (Live)
  type: MusicAlbum
  date published: 2018-11-16
album: Boulez: Le marteau sans maître, Éclat & Dialogue de l'ombre double
  type: MusicAlbum
  date published: 2017-03-17
album: Peri: Euridice (Live)
  type: MusicAlbum
  date published: 2017-01-20
album: Vivaldi: La Seine En Fête
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  date published: 2003-01-01

Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: III. Asszonyok, asszonyok
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by artist: Klára Würtz
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  date published: 2026-07-08T08:56:20Z
audio: Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: III. Asszonyok, asszonyok
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Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: II. Istenem, istenem
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T13:04:34Z
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Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: IV. Annyi bánat az szűvemen
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by artist: Katalin Károlyi
by artist: Klára Würtz
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  date published: 2026-07-31T12:24:41Z
audio: Nyolc magyar népdal BB 47, 8 Hungarian Folk Songs: IV. Annyi bánat az szűvemen
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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