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track: Sonata for 2 Violins in B Minor, Op. 12 No. 1: III. Allegro assai

Sonata for 2 Violins in B Minor, Op. 12 No. 1: III. Allegro assai
type: MusicRecording
duration: PT2M26S
duration ms: 146000
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by artist: Jean-Marie Leclair
by artist: Adolphe Mandeau
by artist: Erika Ehrlinspiel-Beck
in album: Leclair: Sonatas for 2 Violins, Op. 12
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  date published: 2017-02-07
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Sonata for 2 Violins in B Minor, Op. 12 No. 1: III. Allegro assai
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  additional property: Key Name
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