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Cello Sonata No. 3 in A Major, Op. 69: Iii. Adagio cantabile
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Septet in E-flat Major, Op. 20: Ii. Adagio cantabile
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    date published: 2026-07-08T03:22:41Z
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  subject of: OpenTimestamps Proof of Existence
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:39:04Z

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Varma röda stunder
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Septet in E-Flat Major, Op. 20: II. Adagio cantabile
track: Concerto for Violin, Cello & Piano in C Major, Op. 56 "Triple Concerto": II. Largo
track: Piano Trio in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio
track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
track: Violin Concerto in D Major, Op. 61: II. Larghetto
track: Cello Sonata No. 3 in A Major, Op. 69: III. Adagio cantabile
track: Violin Sonata No. 5 in F Major, Op. 24 "Spring": II. Adagio molto espressivo
track: Quintet in E-Flat Major, Op. 16: II. Andante cantabile

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Septet in E-Flat Major, Op. 20: II. Adagio cantabile
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Concerto for Violin, Cello & Piano in C Major, Op. 56 "Triple Concerto": II. Largo
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Piano Trio in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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Violin Concerto in D Major, Op. 61: II. Larghetto
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Cello Sonata No. 3 in A Major, Op. 69: III. Adagio cantabile
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Violin Sonata No. 5 in F Major, Op. 24 "Spring": II. Adagio molto espressivo
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Quintet in E-Flat Major, Op. 16: II. Andante cantabile
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Quintet in E-Flat Major, Op. 16: II. Andante cantabile
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Beethoven For Study
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
  audio: Piano Sonata No. 8 in C Minor, Op. 13, "pathétique": Ii. Adagio cantabile
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Violin Sonata No. 5 in F Major, Op. 24, "spring": Violin Sonata No. 5 in F Major, Op. 24, "spring"
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track: Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor": Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor"
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  subject of: OpenTimestamps Proof of Existence
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f848ae64ac640416682d4ff8280a48fd96a73cb37241e9804c63bd187193af9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199213605.
date published: 2026-07-08T03:20:19Z

Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor": Piano Concerto No. 5 in E-flat Major, Op. 73, "emperor"
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Beethoven: 30 of the Best
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

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Heroic Horn: Best Loved Classical Horn Music
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50 of the Best: Beethoven
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Discover Chamber Music
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Beethoven: Violin Concerto / Sextet
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My First Beethoven Album
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Ravel: Piano Concerto in G Major / Piano Concerto for the Left Hand / Introduction Et Allegro
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The Essential Brahms
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Beethoven - The Early Years
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Mozart: Flute Concertos Nos. 1 and 2 / Andante in C Major
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Bach, J.S.: Prelude and Fugue in G Major / Toccata and Fugue in D Minor / Handel: Organ Concerto
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Mozart - The Early Years
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