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genre: opera
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-21T07:29:20Z
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track: Beethoven: Fantasia in C Minor, Op. 80 "Choral Fantasy": II. (e) Allegretto, ma non troppo - Presto

Beethoven: Fantasia in C Minor, Op. 80 "Choral Fantasy": II. (e) Allegretto, ma non troppo - Presto
type: MusicRecording
duration: PT4M6S
duration ms: 246933
explicit: false
by artist: Ludwig van Beethoven
by artist: Daniel Barenboim
by artist: Andrea Bönig
by artist: Carola Hohn
by artist: Chor Der Deutschen Staatsoper
by artist: Endrik Wottrich
by artist: Katharina Kammerloher
by artist: Pär Lindskog
by artist: René Pape
by artist: Berliner Philharmoniker
in album: Beethoven: Triple Concerto & Choral Fantasy
  type: MusicAlbum
  date published: 1995
popularity: 17
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: 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
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c411259f0b80d209a47e3c0148b2566bd4fc653fd374bce371b1e6e64ba383. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAYC1502019.
  date published: 2026-07-02T03:30:09Z
audio: Beethoven: Fantasia in C Minor, Op. 80 "Choral Fantasy": II. (e) Allegretto, ma non troppo - Presto
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  additional property: Key Name
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