Charles Buterne
type: MusicGroup
description: Charles Buterne (c. 1710 – c. 1760) was a French composer of the Baroque music era. Charles Buterne's father was Jean-Baptiste Buterne, an organ player. Charles Buterne was squire, organist and harps
popularity: 2
followers: 28
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track: Sonata No. 4 in C minor for recorder & b.c. – 1.o Minuetto 2.o Minuetto
track: Sonata No. 4 in C minor for recorder & b.c. – Tendrement

Sonata No. 4 in C minor for recorder & b.c. – 1.o Minuetto 2.o Minuetto
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by artist: Charles Buterne
by artist: László Rózsa
by artist: Jonathan Rees
by artist: Alex McCartney
in album: Rondeau Mélancolique
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  date published: 2018-10-20
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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
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  date published: 2026-07-07T14:50:41Z
audio: Sonata No. 4 in C minor for recorder & b.c. – 1.o Minuetto 2.o Minuetto
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Sonata No. 4 in C minor for recorder & b.c. – Tendrement
type: MusicRecording
duration: PT3M0S
duration ms: 180586
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by artist: Charles Buterne
by artist: László Rózsa
by artist: Jonathan Rees
by artist: Alex McCartney
in album: Rondeau Mélancolique
  type: MusicAlbum
  date published: 2018-10-20
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:59:18Z
audio: Sonata No. 4 in C minor for recorder & b.c. – Tendrement
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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