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subject of: OpenTimestamps Proof of Existence
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track: Serenade No. 10 in B-Flat Major, K. 361 "Gran Partita": VII. Rondo. Molto allegro
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  by artist: Volker Hardt
  by artist: Walter Triebskorn
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  by artist: Willy Schnell
  by artist: Franz Klein
  by artist: Alfred Rinderspacher
  by artist: Gerd Krumbein
  by artist: Günter Wich
  by artist: Helmut Pallushek
  by artist: Herbert Duft
  by artist: Jürgen Gode
  by artist: Kurt Krumbein
  by artist: Lajos Lencsés
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    date published: 2011-11-15
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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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Serenade No. 10 in B-Flat Major, K. 361 "Gran Partita": VII. Rondo. Molto allegro
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track: Serenade No. 10 in B-Flat Major, K. 361 "Gran Partita": VII. Rondo. Molto allegro
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  by artist: Otto Schmitz
  by artist: Volker Hardt
  by artist: Walter Triebskorn
  by artist: Werner Müller
  by artist: Willy Schnell
  by artist: Franz Klein
  by artist: Alfred Rinderspacher
  by artist: Gerd Krumbein
  by artist: Günter Wich
  by artist: Helmut Pallushek
  by artist: Herbert Duft
  by artist: Jürgen Gode
  by artist: Kurt Krumbein
  by artist: Lajos Lencsés
  in album: Classical Music for Creativity
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    date published: 2019-04-12
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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
  subject of: OpenTimestamps Proof of Existence
  audio: Serenade No. 10 in B-Flat Major, K. 361 "Gran Partita": VII. Rondo. Molto allegro
track: Serenade No. 10 in B-Flat Major, K. 361 "Gran Partita": III. Adagio

OpenTimestamps Proof of Existence
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2543fab815acd34030d22b0ba6708decb28aa30e40d9a564295070573dae01b4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580600852 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Serenade No. 10 in B-Flat Major, K. 361 "Gran Partita": VII. Rondo. Molto allegro
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Serenade No. 10 in B-Flat Major, K. 361 "Gran Partita": III. Adagio
type: MusicRecording
duration: PT5M29S
duration ms: 329760
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by artist: Wolfgang Amadeus Mozart
by artist: Mozart Ensemble Stuttgart
by artist: Otto Schmitz
by artist: Volker Hardt
by artist: Walter Triebskorn
by artist: Werner Müller
by artist: Willy Schnell
by artist: Franz Klein
by artist: Alfred Rinderspacher
by artist: Gerd Krumbein
by artist: Günter Wich
by artist: Helmut Pallushek
by artist: Herbert Duft
by artist: Jürgen Gode
by artist: Kurt Krumbein
by artist: Lajos Lencsés
in album: Study Music - Classical Music for Thinking and Concentration
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  date published: 2016-05-13
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T15:20:15Z
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