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album: Brahms, Franck & Debussy: Sonates pour violoncelle & piano
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  date published: 2016-10-21
track: Moments musicaux, Op. 94, D. 780: No. 3, Allegro moderato (F Minor)
track: Piano Sonata in A Major, D. 959: I. Allegro
track: Piano Sonata in A Major, D. 959: II. Andantino

Moments musicaux, Op. 94, D. 780: No. 3, Allegro moderato (F Minor)
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by artist: Adam Laloum
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  date published: 2024-01-19
genre: classical
genre: classical-piano
genre: chamber-music
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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
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  date published: 2026-07-08T03:53:27Z
audio: Moments musicaux, Op. 94, D. 780: No. 3, Allegro moderato (F Minor)
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Piano Sonata in A Major, D. 959: I. Allegro
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by artist: Franz Schubert
by artist: Adam Laloum
in album: Schubert: Piano Sonata, D. 959 - Moments musicaux D. 780
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genre: classical
genre: classical-piano
genre: chamber-music
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  date published: 2026-07-30T20:09:33Z
audio: Piano Sonata in A Major, D. 959: I. Allegro
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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

Piano Sonata in A Major, D. 959: II. Andantino
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duration: PT8M22S
duration ms: 502706
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by artist: Franz Schubert
by artist: Adam Laloum
in album: Schubert: Piano Sonata, D. 959 - Moments musicaux D. 780
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  date published: 2024-01-19
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T20:35:49Z
audio: Piano Sonata in A Major, D. 959: II. Andantino
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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