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subject of: OpenTimestamps Proof of Existence
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-30T05:15:54Z
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-30T00:53:20Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T13:04:34Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:46:00Z
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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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Also sprach Zarathustra, Op. 30, TrV 176: I. Also sprach Zarathustra
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Peer Gynt Suite No. 1, Op. 46: IV. I Dovregubbens hall (In the Hall of the Mountain King)
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
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Liebestraume, S541/R211: No. 3. Nocturne in A-Flat Major
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Tristan und Isolde, Act I: Prelude
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Thaïs: Thais, Act II: Meditation (version for violin and piano)
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Suite for Jazz Orchestra No. 2: Jazz Suite No. 2: VI. Waltz No. 2
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Serenade for Strings in E Major, Op. 22: II. Tempo di Valse
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Messa da Requiem: Dies irae
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3 Chansons: No. 2. Trois beaux oiseaux du Paradis
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Mozart: Die Zauberflöte, K. 620: Overture (Adagio - Allegro)
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Mozart: Ave verum corpus, K. 618
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Bach: Liebster Jesu, wir sind hier (Choral Prelude), BWV 731
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  value: https://explorer.copyrightchains.com/tx/0x4da31f3dc13804db70364f06b58f06641db0e3b487fd2ed043cabd5df16608ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9100968
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
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 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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da31f3dc13804db70364f06b58f06641db0e3b487fd2ed043cabd5df16608ce. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBAYC9100968.
  date published: 2026-07-31T12:24:41Z
audio: Bach: Liebster Jesu, wir sind hier (Choral Prelude), BWV 731
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.814
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.165
  additional property: Energy
    type: PropertyValue
    value: 0.035
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.949
  additional property: Liveness
    type: PropertyValue
    value: 0.288
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.138
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.885
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major