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genre: classical
genre: opera
description: Carl Maria Friedrich Ernst von Weber (5 June 1826) was a German composer, conductor, virtuoso pianist, guitarist, and critic in the late Classical and early Romantic eras. Best known for his operas, h
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album: Legacy of a Legend (Remastered)
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album: The Centenary Album
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album: Mirages. Hidden Treasures of Classical Piano
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album: Deutsche Klarinette. Brahms, Mendelssohn, Beethoven, Weber...
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album: Music by the Sea
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album: Mendelssohn: The Hebrides, Symphonies Nos. 3 "Scottish" & 4 "Italian" - Weber: Overtures (Remastered)
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album: Abbado A-Z: Schumann – Tchaikovsky
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album: Remembrances. Piano Essentials from the Golden Age
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album: Alfred Cortot Plays Beethoven, Schubert & Weber
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album: Weber: Complete Chamber Music for Clarinet
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  track: Variations on a Theme from the Opera Silvana in B-Flat Major, Op. 33: III. Variation II. Con Grazia
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album: Weber: 6 Violin Sonatas
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album: Weber: Overtures
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album: Weber
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album: The Freischütz Project
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album: Weber & Kurpinski: Clarinet Concertos
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album: Weber: Complete Keyboard Duets
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album: Weber: Oberon, J. 306 (Live)
album: Berlioz: Harold in Italy & Other Orchestral Works
album: Carl Maria von Weber Piano Sonatas vol. 2
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album: Weber: Complete Songs for Voice and Guitar
album: Bernstein Conducts Carl Maria von Weber (Remastered)
album: Carl Maria von Weber: Concerto No. 1, Variations & Grand duo
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album: Weber: Piano Sonatas (Complete)
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album: The clarinet as prima donna: Concertos and Opera Extracts
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album: Weber: Clarinet Concertos Nos. 1, 2 & Clarinet Concertino in E-Flat Major, Op. 26
album: LP Pure, Vol. 23: Scherchen Conducts Weber Overtures
album: Weber, Rossini: Compositions for Clarinet and Orchestra
album: Weber: Euryanthe, J. 291 (Live)
album: Carl Maria von Weber: Invitation to the Dance, Overtures
album: Karajan A-Z: Wagner - Wolf-Ferrari
album: Chopin: 24 Preludes; Weber: Konzertstück
album: Weber: Oberon, J. 306 (Recorded 1957)
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album: Weber: Concertino for Horn and Orchestra, Op. 45, J. 188: IV. Polacca
album: Von Weber: Clarinet Concertos - Mozart: Rondo for Flute
album: Weber: Grandes ouvertures
album: Weber, C.M. Von: Clarinet Music - Opp. 33, 34, 48
album: Weber : Clarinet Concertos Nos 1, 2 & Grand Duo Concertant
album: Weber: Piano Trio Op. 63; Piano Quartet Op. 8
album: Weber: Klarinettenkonzerte, Vol. 1
album: Weber: Der Freischütz: Einst träumte meiner sel'gen Base
album: Weber: Orchestral Favourites, Vol. XVII
album: Weber: Der Freischütz, J. 277

Weber: Symphonies & Clarinet Concertos
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date published: 2020-03-13

Weber: Peter Schmoll, Op. 8, J. 8 (Live)
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Weber: Chamber Music for Flute
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Weber: Euryanthe, Op. 81, J. 291 (Live)
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Weber: Oberon, J. 306 (Live)
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Berlioz: Harold in Italy & Other Orchestral Works
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Carl Maria von Weber Piano Sonatas vol. 2
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Von Weber: Works for Clarinet: Grand Quintetto, Op. 34 / Grand Duo Concertant, Op. 48 / Var. for Clarinet & Piano, Op. 33
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date published: 2018-02-04

Weber: Complete Songs for Voice and Guitar
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Bernstein Conducts Carl Maria von Weber (Remastered)
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Carl Maria von Weber: Concerto No. 1, Variations & Grand duo
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Carl Maria Von Weber: Complete Works for Clarinet
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Weber: Piano Sonatas (Complete)
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Carl Maria von Weber: Piano Sonatas, Vol. 1
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6 Violin Sonatas, Op. 10b
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Weber: Complete Overtures
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Weber: Clarinet Concertos No. 1 & 2 - Concertino Op. 26
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The clarinet as prima donna: Concertos and Opera Extracts
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Weber: Der Freischütz, Op. 77, J. 277
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LP Pure, Vol. 23: Scherchen Conducts Weber Overtures
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Weber, Rossini: Compositions for Clarinet and Orchestra
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Weber: Euryanthe, J. 291 (Live)
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Weber: Complete Works for Piano & Orchestra
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Carl Maria von Weber: Invitation to the Dance, Overtures
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Weber: Symphonies & Clarinet Concertos
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Karajan A-Z: Wagner - Wolf-Ferrari
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Chopin: 24 Preludes; Weber: Konzertstück
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Von Weber: Clarinet Concertos - Mozart: Rondo for Flute
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Weber, C.M. Von: Clarinet Music - Opp. 33, 34, 48
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Weber : Clarinet Concertos Nos 1, 2 & Grand Duo Concertant
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Weber: Piano Trio Op. 63; Piano Quartet Op. 8
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  by artist: Monika Hildebrand
  by artist: Use Rainer
  by artist: Gerlind Schulze
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  audio: Der Freischütz, J. 277, Act I: Was gibt's hier?
track: Der Freischütz, J. 277, Act I: O diese Sonne - Das Wild in Fluren und Triften
track: Der Freischütz, J. 277, Act I: Walzer
track: Der Freischütz, J. 277, Act I: Nein, länger trag' ich nicht die Qualen - Durch die Wälder, durch die Auen
track: Der Freischütz, J. 277, Act I: Kamerad!
track: Der Freischütz, J. 277, Act I: Hier im irdschen Jammertal
track: Der Freischütz, J. 277, Act I: Bruderherz!
track: Der Freischütz, J. 277, Act I: Schweig, damit dich niemand warnt!
track: Der Freischütz, J. 277, Act II: Schelm! Halt fest!
track: Der Freischütz, J. 277, Act II: Kommt ein schlanker Bursch gegangen
track: Der Freischütz, J. 277, Act II: Wie nahte mir der Schlummer - Leise, leise, fromme Weise!
track: Der Freischütz, J. 277, Act II: Wie? Was? Entsetzen!
track: Der Freischütz, J. 277, Act II: Milch des Mondes fiel aufs Kraut - Samiel! Samiel! Erschein! - Ha! Furchtbar gähnt der düstre Abgrund
track: Der Freischütz, J. 277, Act III: Entr'acte
track: Der Freischütz, J. 277, Act III: Und ob die Wolke sie verhülle
track: Der Freischütz, J. 277, Act III: Einst träumte meiner sel'gen Base - Trübe Augen, Liebchen, taugen
track: Der Freischütz, J. 277, Act III: Wir winden dir den Jungfernkranz
track: Der Freischütz, J. 277, Act III: Was gleicht wohl auf Erden dem Jägervergnügen?
track: Der Freischütz, J. 277, Act III: Schaut, o schaut! Er traf die eigne Braut!
track: Der Freischütz, J. 277, Act III: Wer legt auf ihn so strengen Bann?

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Der Freischütz, J. 277, Act I: Was gibt's hier?
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Der Freischütz, J. 277, Act I: O diese Sonne - Das Wild in Fluren und Triften
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Der Freischütz, J. 277, Act I: O diese Sonne - Das Wild in Fluren und Triften
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Der Freischütz, J. 277, Act I: Walzer
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subject of: OpenTimestamps Proof of Existence
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audio: Der Freischütz, J. 277, Act I: Walzer
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Der Freischütz, J. 277, Act I: Nein, länger trag' ich nicht die Qualen - Durch die Wälder, durch die Auen
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Der Freischütz, J. 277, Act I: Kamerad!
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subject of: OpenTimestamps Proof of Existence
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Der Freischütz, J. 277, Act I: Hier im irdschen Jammertal
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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Der Freischütz, J. 277, Act I: Bruderherz!
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genre: opera
isrc code: DEF057330223
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T03:58:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x321746d081e2218fe1aaffb337db993bfbe41b7da62dcdb1cf9938b7ab988deb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330223
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x321746d081e2218fe1aaffb337db993bfbe41b7da62dcdb1cf9938b7ab988deb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEF057330223.
  date published: 2026-07-02T03:55:08Z
audio: Der Freischütz, J. 277, Act I: Bruderherz!
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 135.772
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.651
  additional property: Energy
    type: PropertyValue
    value: 0.432
  additional property: Speechiness
    type: PropertyValue
    value: 0.875
  additional property: Acousticness
    type: PropertyValue
    value: 0.422
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.224
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.31
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.142
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Der Freischütz, J. 277, Act I: Schweig, damit dich niemand warnt!
type: MusicRecording
duration: PT3M16S
duration ms: 196600
explicit: false
by artist: Carl Maria von Weber
by artist: Theo Adam
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
popularity: 12
genre: classical
genre: opera
isrc code: DEF057330206
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:24:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4d682784aa1a79a7990dc4471f04fd037580d6e402db575b6d10cbf0fb8a015a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330206
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x4d682784aa1a79a7990dc4471f04fd037580d6e402db575b6d10cbf0fb8a015a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEF057330206.
  date published: 2026-07-02T03:55:08Z
audio: Der Freischütz, J. 277, Act I: Schweig, damit dich niemand warnt!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.552
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.381
  additional property: Energy
    type: PropertyValue
    value: 0.479
  additional property: Speechiness
    type: PropertyValue
    value: 0.094
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.163
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.173
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.714
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Der Freischütz, J. 277, Act II: Schelm! Halt fest!
type: MusicRecording
duration: PT4M48S
duration ms: 288733
explicit: false
by artist: Carl Maria von Weber
by artist: Edith Mathis
by artist: Gundula Janowitz
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
genre: classical
genre: opera
isrc code: DEF057330207
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T04:08:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70dddf5153c8205d16acb12ab7096c712b10e6502c66c9ace422f0f1d5b31b33
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x70dddf5153c8205d16acb12ab7096c712b10e6502c66c9ace422f0f1d5b31b33. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEF057330207.
  date published: 2026-07-02T03:55:08Z
audio: Der Freischütz, J. 277, Act II: Schelm! Halt fest!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.681
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.354
  additional property: Energy
    type: PropertyValue
    value: 0.198
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.193
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.243
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Der Freischütz, J. 277, Act II: Kommt ein schlanker Bursch gegangen
type: MusicRecording
duration: PT3M45S
duration ms: 225266
explicit: false
by artist: Carl Maria von Weber
by artist: Edith Mathis
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
genre: classical
genre: opera
isrc code: DEF057330208
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T08:01:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66aec29ca5f6c9300ad1814bc924ba30d227ff9b239639ce9e06b330555922b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330208
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x66aec29ca5f6c9300ad1814bc924ba30d227ff9b239639ce9e06b330555922b6. 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/DEF057330208.
  date published: 2026-07-02T03:30:09Z
audio: Der Freischütz, J. 277, Act II: Kommt ein schlanker Bursch gegangen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.433
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.437
  additional property: Energy
    type: PropertyValue
    value: 0.21
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.078
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.302
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.529
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Der Freischütz, J. 277, Act II: Wie nahte mir der Schlummer - Leise, leise, fromme Weise!
type: MusicRecording
duration: PT8M19S
duration ms: 499733
explicit: false
by artist: Carl Maria von Weber
by artist: Gundula Janowitz
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
genre: classical
genre: opera
isrc code: DEF057330209
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T05:06:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f15ef1e490e781689e8ca0c77d81dc685358b9e29d4fdd8fbda049837f584c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330209
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x2f15ef1e490e781689e8ca0c77d81dc685358b9e29d4fdd8fbda049837f584c2. 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/DEF057330209.
  date published: 2026-07-02T03:30:09Z
audio: Der Freischütz, J. 277, Act II: Wie nahte mir der Schlummer - Leise, leise, fromme Weise!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.253
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.285
  additional property: Energy
    type: PropertyValue
    value: 0.11
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.261
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.277
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Der Freischütz, J. 277, Act II: Wie? Was? Entsetzen!
type: MusicRecording
duration: PT6M44S
duration ms: 404266
explicit: false
by artist: Carl Maria von Weber
by artist: Gundula Janowitz
by artist: Edith Mathis
by artist: Peter Schreier
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
genre: classical
genre: opera
isrc code: DEF057330210
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T20:10:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f97843ff7ab843b2b571742748a746ad565d97ecf8ed57f0044c2b163d6070d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330210
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x7f97843ff7ab843b2b571742748a746ad565d97ecf8ed57f0044c2b163d6070d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEF057330210.
  date published: 2026-07-02T03:55:08Z
audio: Der Freischütz, J. 277, Act II: Wie? Was? Entsetzen!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.62
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.22
  additional property: Energy
    type: PropertyValue
    value: 0.244
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.25
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.131
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.882
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Der Freischütz, J. 277, Act II: Milch des Mondes fiel aufs Kraut - Samiel! Samiel! Erschein! - Ha! Furchtbar gähnt der düstre Abgrund
type: MusicRecording
duration: PT16M34S
duration ms: 994986
explicit: false
by artist: Carl Maria von Weber
by artist: Gerhard Paul
by artist: Hans Jörn Weber
by artist: Peter Schreier
by artist: Theo Adam
by artist: MDR Leipzig Radio Chorus
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
popularity: 14
genre: classical
genre: opera
isrc code: DEF057330211
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T05:01:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f0bc602e3a5a0236a090f8598f195b13c9b15ad9fb7e508fe967eed2f40e350
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330211
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x7f0bc602e3a5a0236a090f8598f195b13c9b15ad9fb7e508fe967eed2f40e350. 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/DEF057330211.
  date published: 2026-07-02T03:30:09Z
audio: Der Freischütz, J. 277, Act II: Milch des Mondes fiel aufs Kraut - Samiel! Samiel! Erschein! - Ha! Furchtbar gähnt der düstre Abgrund
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Der Freischütz, J. 277, Act III: Entr'acte
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duration: PT1M45S
duration ms: 105560
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by artist: Carl Maria von Weber
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
genre: classical
genre: opera
isrc code: DEF057330212
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96e65753cc7d82ab9de29b7a2ca29a2816ad7c8232500b071da02a226de9ea7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEF057330212.
  date published: 2026-07-02T03:55:08Z
audio: Der Freischütz, J. 277, Act III: Entr'acte
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Der Freischütz, J. 277, Act III: Und ob die Wolke sie verhülle
type: MusicRecording
duration: PT5M57S
duration ms: 357466
explicit: false
by artist: Carl Maria von Weber
by artist: Gundula Janowitz
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
genre: classical
genre: opera
isrc code: DEF057330213
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330213
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b18ad1ef8e2078c1fcb8cad1454bd98f5efb673e316a9df00a0e6c7dd4fa87. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEF057330213.
  date published: 2026-06-13T13:32:09Z
audio: Der Freischütz, J. 277, Act III: Und ob die Wolke sie verhülle
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Der Freischütz, J. 277, Act III: Einst träumte meiner sel'gen Base - Trübe Augen, Liebchen, taugen
type: MusicRecording
duration: PT6M10S
duration ms: 370000
explicit: false
by artist: Carl Maria von Weber
by artist: Edith Mathis
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
genre: classical
genre: opera
isrc code: DEF057330214
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330214
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d1bd3cdc0941d63297553f5305200d9e93b53b5a4a011d310fae7aa2cf183a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEF057330214.
  date published: 2026-07-02T03:55:08Z
audio: Der Freischütz, J. 277, Act III: Einst träumte meiner sel'gen Base - Trübe Augen, Liebchen, taugen
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  additional property: Energy
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Der Freischütz, J. 277, Act III: Wir winden dir den Jungfernkranz
type: MusicRecording
duration: PT5M0S
duration ms: 300133
explicit: false
by artist: Carl Maria von Weber
by artist: Renate Hoff
by artist: Renate Krahmer
by artist: Ingeborg Springer
by artist: Brigitte Pfretzschner
by artist: Ingrid Hille
by artist: MDR Leipzig Radio Chorus
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
genre: classical
genre: opera
isrc code: DEF057330215
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330215
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b97db3a4a2626820c4920744d0516eb2b9555985bc90bde944e239e6ea64ff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEF057330215.
  date published: 2026-07-02T03:55:08Z
audio: Der Freischütz, J. 277, Act III: Wir winden dir den Jungfernkranz
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Der Freischütz, J. 277, Act III: Was gleicht wohl auf Erden dem Jägervergnügen?
type: MusicRecording
duration: PT2M28S
duration ms: 148733
explicit: false
by artist: Carl Maria von Weber
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
by artist: MDR Leipzig Radio Chorus
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
genre: classical
genre: opera
isrc code: DEF057330216
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330216
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x66963daf3eca7186f98edd82f3da64a2121fc7208633f61fdfea1f224d1df0a7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEF057330216.
  date published: 2026-06-13T13:32:09Z
audio: Der Freischütz, J. 277, Act III: Was gleicht wohl auf Erden dem Jägervergnügen?
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  additional property: Danceability
    type: PropertyValue
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  additional property: Speechiness
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  additional property: Acousticness
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Der Freischütz, J. 277, Act III: Schaut, o schaut! Er traf die eigne Braut!
type: MusicRecording
duration: PT9M22S
duration ms: 562093
explicit: false
by artist: Carl Maria von Weber
by artist: Gundula Janowitz
by artist: Edith Mathis
by artist: Peter Schreier
by artist: Bernd Weikl
by artist: Siegfried Vogel
by artist: Theo Adam
by artist: MDR Leipzig Radio Chorus
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
genre: classical
genre: opera
isrc code: DEF057330231
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057330231
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x5f051ecfaf9a5031c86e7fde4376b7a5143845ba731f69074df79e55db6ca51e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEF057330231.
  date published: 2026-07-02T03:55:08Z
audio: Der Freischütz, J. 277, Act III: Schaut, o schaut! Er traf die eigne Braut!
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Der Freischütz, J. 277, Act III: Wer legt auf ihn so strengen Bann?
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by artist: Gundula Janowitz
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by artist: Peter Schreier
by artist: Bernd Weikl
by artist: Franz Crass
by artist: Siegfried Vogel
by artist: MDR Leipzig Radio Chorus
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Hommage à Weber
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Weber, C.M. Von: Freischutz (Der) [Opera] (Staatskapelle Dresden Edition, Vol. 27)
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Concertos and Vocal Music: Chopin, Bach, Ravel...
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track: Tchaikovsky: Violin Concerto in D Major, Op. 35: I. Allegro moderato, Pt. 1
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track: Tchaikovsky: Violin Concerto in D Major, Op. 35: I. Allegro moderato, Pt. 3
track: Tchaikovsky: Violin Concerto in D Major, Op. 35: I. Allegro moderato, Pt. 4
track: Tchaikovsky: Violin Concerto in D Major, Op. 35: I. Allegro moderato, Pt. 5
track: Tchaikovsky: Violin Concerto in D Major, Op. 35: I. Allegro moderato, Pt. 9
track: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Theme. Andante
track: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation I. Poco più animato
track: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation II. Più vivace
track: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation III. Con moto
track: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation IV. Andante con moto
track: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation V. Vivace
track: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VI. Vivace
track: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VII. Grazioso
track: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VIII. Presto non troppo
track: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Finale. Andante
track: Tchaikovsky: The Nutcracker, Op. 71, Act 1: No. 3, Children's Galop and Entry of the Parents
track: Tchaikovsky: The Nutcracker, Op. 71, Act 2: No. 14b, Pas de deux. Variation I "Tarantella"
track: Sarasate: Carmen Concert Fantasy, Op. 25: II. Moderato
track: Sarasate: Carmen Concert Fantasy, Op. 25: III. Lento assai
track: Sarasate: Carmen Concert Fantasy, Op. 25: IV. Allegro moderato
track: Sarasate: Carmen Concert Fantasy, Op. 25: V. Moderato

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date published: 2026-06-13T13:32:09Z

Barber: Adagio for Strings, Pt. 3
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Barber: Adagio for Strings, Pt. 4
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Barber: Adagio for Strings, Pt. 4
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Barber: Adagio for Strings, Pt. 5
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subject of: OpenTimestamps Proof of Existence
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audio: Barber: Adagio for Strings, Pt. 5
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Barber: Adagio for Strings, Pt. 6
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Barber: Adagio for Strings, Pt. 6
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Barber: Adagio for Strings, Pt. 7
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Barber: Adagio for Strings, Pt. 7
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Barber: Adagio for Strings, Pt. 8
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Barber: Adagio for Strings, Pt. 8
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Tchaikovsky: Violin Concerto in D Major, Op. 35: I. Allegro moderato, Pt. 1
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subject of: OpenTimestamps Proof of Existence
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Tchaikovsky: Violin Concerto in D Major, Op. 35: I. Allegro moderato, Pt. 3
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Tchaikovsky: Violin Concerto in D Major, Op. 35: I. Allegro moderato, Pt. 4
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Tchaikovsky: Violin Concerto in D Major, Op. 35: I. Allegro moderato, Pt. 5
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Theme. Andante
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation I. Poco più animato
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  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x286bb4bc611899600c9e2636f9343f6d72c027def0589b686115200a44f0f37d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809643302
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x286bb4bc611899600c9e2636f9343f6d72c027def0589b686115200a44f0f37d. 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/DEA809643302.
  date published: 2026-07-02T03:30:09Z
audio: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation I. Poco più animato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.812
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.234
  additional property: Energy
    type: PropertyValue
    value: 0.042
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.957
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.689
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.31
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.91
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation II. Più vivace
type: MusicRecording
duration: PT1M3S
duration ms: 63800
explicit: false
by artist: Johannes Brahms
by artist: Nikolaus Harnoncourt
by artist: Berliner Philharmoniker
in album: Barber: Adagio - Orchestral Favourites
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: DEA809643303
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T09:47:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0015cdf8fbb377ef3255d6242acd202bb3dfcb34a2f325579c5d2492acc7142d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809643303
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x0015cdf8fbb377ef3255d6242acd202bb3dfcb34a2f325579c5d2492acc7142d. 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/DEA809643303.
  date published: 2026-07-02T03:30:09Z
audio: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation II. Più vivace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.734
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.307
  additional property: Energy
    type: PropertyValue
    value: 0.035
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.939
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.507
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.479
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation III. Con moto
type: MusicRecording
duration: PT1M55S
duration ms: 115173
explicit: false
by artist: Johannes Brahms
by artist: Nikolaus Harnoncourt
by artist: Berliner Philharmoniker
in album: Barber: Adagio - Orchestral Favourites
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: DEA809643304
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T09:48:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8077dd23610858f62ece4129dcdaf4399bd7398d0c4782a9c43edcdb04308404
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809643304
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x8077dd23610858f62ece4129dcdaf4399bd7398d0c4782a9c43edcdb04308404. 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/DEA809643304.
  date published: 2026-07-02T03:30:09Z
audio: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation III. Con moto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.72
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.116
  additional property: Energy
    type: PropertyValue
    value: 0.033
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.901
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.209
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.266
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation IV. Andante con moto
type: MusicRecording
duration: PT2M6S
duration ms: 126666
explicit: false
by artist: Johannes Brahms
by artist: Nikolaus Harnoncourt
by artist: Berliner Philharmoniker
in album: Barber: Adagio - Orchestral Favourites
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: DEA809643305
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T09:46:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a66ac8d7caffaeae2de69a230b4a6b085acfe49b0e6ea29c0b083ad46254e6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809643305
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x5a66ac8d7caffaeae2de69a230b4a6b085acfe49b0e6ea29c0b083ad46254e6c. 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/DEA809643305.
  date published: 2026-07-02T03:30:09Z
audio: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation IV. Andante con moto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.503
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.167
  additional property: Energy
    type: PropertyValue
    value: 0.033
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.927
  additional property: Liveness
    type: PropertyValue
    value: 0.21
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.08
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.892
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation V. Vivace
type: MusicRecording
duration: PT1M3S
duration ms: 63600
explicit: false
by artist: Johannes Brahms
by artist: Nikolaus Harnoncourt
by artist: Berliner Philharmoniker
in album: Barber: Adagio - Orchestral Favourites
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: DEA809643306
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T09:44:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41d0322deecbce2c314a80a4886db2a7d642d9005e3eea8d5bb820be58748d47
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809643306
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x41d0322deecbce2c314a80a4886db2a7d642d9005e3eea8d5bb820be58748d47. 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/DEA809643306.
  date published: 2026-07-02T03:30:09Z
audio: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation V. Vivace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 169.867
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.34
  additional property: Energy
    type: PropertyValue
    value: 0.09
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.872
  additional property: Liveness
    type: PropertyValue
    value: 0.166
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.819
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.367
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VI. Vivace
type: MusicRecording
duration: PT1M20S
duration ms: 80200
explicit: false
by artist: Johannes Brahms
by artist: Nikolaus Harnoncourt
by artist: Berliner Philharmoniker
in album: Barber: Adagio - Orchestral Favourites
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: DEA809643307
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T09:41:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe5bf9c68bedb97e42e1e1c7729966c93cfc92b9ef200594e0331a26756c95052
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809643307
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0xe5bf9c68bedb97e42e1e1c7729966c93cfc92b9ef200594e0331a26756c95052. 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/DEA809643307.
  date published: 2026-07-02T03:30:09Z
audio: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VI. Vivace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.275
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.577
  additional property: Energy
    type: PropertyValue
    value: 0.268
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.893
  additional property: Liveness
    type: PropertyValue
    value: 0.167
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.567
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.952
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VII. Grazioso
type: MusicRecording
duration: PT2M28S
duration ms: 148200
explicit: false
by artist: Johannes Brahms
by artist: Nikolaus Harnoncourt
by artist: Berliner Philharmoniker
in album: Barber: Adagio - Orchestral Favourites
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: DEA809643308
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T10:27:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5cd47ac2c15d5a7cda47d5fa47cdc7133c8df2bb684e679e2119190af8c323cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809643308
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x5cd47ac2c15d5a7cda47d5fa47cdc7133c8df2bb684e679e2119190af8c323cd. 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/DEA809643308.
  date published: 2026-07-02T03:30:09Z
audio: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VII. Grazioso
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VIII. Presto non troppo
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by artist: Nikolaus Harnoncourt
by artist: Berliner Philharmoniker
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genre: classical
genre: german-romanticism
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Variation VIII. Presto non troppo
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Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Finale. Andante
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duration: PT3M35S
duration ms: 215466
explicit: false
by artist: Johannes Brahms
by artist: Nikolaus Harnoncourt
by artist: Berliner Philharmoniker
in album: Barber: Adagio - Orchestral Favourites
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  date published: 2025-03-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Brahms: Variations on a Theme by Haydn, Op. 56a "St. Antoni Chorale": Finale. Andante
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Tchaikovsky: The Nutcracker, Op. 71, Act 1: No. 3, Children's Galop and Entry of the Parents
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duration: PT2M14S
duration ms: 134191
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by artist: Pyotr Ilyich Tchaikovsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Barber: Adagio - Orchestral Favourites
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Tchaikovsky: The Nutcracker, Op. 71, Act 1: No. 3, Children's Galop and Entry of the Parents
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Tchaikovsky: The Nutcracker, Op. 71, Act 2: No. 14b, Pas de deux. Variation I "Tarantella"
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duration: PT0M39S
duration ms: 39120
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Tchaikovsky: The Nutcracker, Op. 71, Act 2: No. 14b, Pas de deux. Variation I "Tarantella"
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Sarasate: Carmen Concert Fantasy, Op. 25: II. Moderato
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duration: PT2M8S
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explicit: false
by artist: Pablo de Sarasate
by artist: Sarah Chang
by artist: Plácido Domingo
by artist: Berliner Philharmoniker
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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 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: 2026-07-02T03:30:09Z
audio: Sarasate: Carmen Concert Fantasy, Op. 25: II. Moderato
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Sarasate: Carmen Concert Fantasy, Op. 25: III. Lento assai
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duration ms: 147600
explicit: false
by artist: Pablo de Sarasate
by artist: Sarah Chang
by artist: Plácido Domingo
by artist: Berliner Philharmoniker
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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 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: 2026-07-02T03:55:08Z
audio: Sarasate: Carmen Concert Fantasy, Op. 25: III. Lento assai
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Sarasate: Carmen Concert Fantasy, Op. 25: IV. Allegro moderato
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duration: PT1M52S
duration ms: 112986
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by artist: Pablo de Sarasate
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by artist: Plácido Domingo
by artist: Berliner Philharmoniker
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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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 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: 2026-07-02T03:30:09Z
audio: Sarasate: Carmen Concert Fantasy, Op. 25: IV. Allegro moderato
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Sarasate: Carmen Concert Fantasy, Op. 25: V. Moderato
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duration: PT2M34S
duration ms: 154253
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by artist: Pablo de Sarasate
by artist: Sarah Chang
by artist: Plácido Domingo
by artist: Berliner Philharmoniker
in album: Barber: Adagio - Orchestral Favourites
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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 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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebff5636c31bd8e2695b86ee559a0e1d9d95cdc818954d8d9dcabcc6df8cda6c. 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/GBAYC0102365.
  date published: 2026-07-02T03:30:09Z
audio: Sarasate: Carmen Concert Fantasy, Op. 25: V. Moderato
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The Master Pianist
type: MusicAlbum
date published: 2024-12-15

Eugene Ormandy - Opera Highlights from The Columbia Stereo Collection 1964-1983
type: MusicAlbum
date published: 2025-03-15
track: La gioconda, Op. 9, Act III: Dance of the Hours - 2025 Remastered
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  by artist: Eugene Ormandy
  by artist: Philadelphia Orchestra
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    type: MusicAlbum
    date published: 2025-03-15
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12403164
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082c946f766c6f6262d150fed77a1990dc72090293c2d4b40e0ef7374410eca1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USSM12403164.
    date published: 2026-07-02T03:55:08Z
  audio: La gioconda, Op. 9, Act III: Dance of the Hours - 2025 Remastered
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Valence (Positivity)
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track: The Bartered Bride: Dance of the Comedians - 2025 Remastered
  type: MusicRecording
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  by artist: Bedřich Smetana
  by artist: Eugene Ormandy
  by artist: Philadelphia Orchestra
  in album: Eugene Ormandy - Opera Highlights from The Columbia Stereo Collection 1964-1983
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    date published: 2025-03-15
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
  genre: early-modern-classical
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
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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 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 0x83d11a20cc02704894c1fef97a4910422201ede3bd8ef48b355d908bde936866. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM12403167.
    date published: 2026-07-02T05:09:12Z
  audio: The Bartered Bride: Dance of the Comedians - 2025 Remastered
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Energy
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: Guillaume Tell: No. 5, Pas de six - 2025 Remastered
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  duration: PT5M58S
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  by artist: Eugene Ormandy
  by artist: Philadelphia Orchestra
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  genre: classical
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Guillaume Tell: No. 5, Pas de six - 2025 Remastered
track: Polka from "Schwanda" - 2025 Remastered

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x09c750dbdaf88ecc5cdc77b24831020fdaba37343422e0dac0a5da7f6abc881c

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 956889

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956889

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12403168

OTSTimestamp
type: PropertyValue
value: 2026-07-06T06:56:49Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c750dbdaf88ecc5cdc77b24831020fdaba37343422e0dac0a5da7f6abc881c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USSM12403168.
date published: 2026-07-06T06:56:49Z

Guillaume Tell: No. 5, Pas de six - 2025 Remastered
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
  type: PropertyValue
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Polka from "Schwanda" - 2025 Remastered
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duration: PT2M23S
duration ms: 143293
explicit: false
by artist: Jaromír Weinberger
by artist: Eugene Ormandy
by artist: Philadelphia Orchestra
in album: Eugene Ormandy - Opera Highlights from The Columbia Stereo Collection 1964-1983
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isrc code: USSM12403169
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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 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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cf28e9d9814cfdf530017eb9bbcb8745d0aa378a6e0f979237115e2b010e42. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USSM12403169.
  date published: 2026-07-02T03:55:08Z
audio: Polka from "Schwanda" - 2025 Remastered
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Weber: Clarinet Concertos, Clarinet Quintet
type: MusicAlbum
date published: 2025-01-24
track: Clarinet Concerto No. 1 in F Minor, Op. 73: I. Allegro
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  additional property: OTSVerificationAPI
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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
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-02T03:55:08Z
  audio: Clarinet Concerto No. 1 in F Minor, Op. 73: I. Allegro
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track: Clarinet Concerto No. 2 in E-Flat Major, Op. 74: I. Allegro

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Clarinet Concerto No. 1 in F Minor, Op. 73: III. Rondo. Allegretto
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Clarinet Concerto No. 2 in E-Flat Major, Op. 74: I. Allegro
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Horn Concertino in E Minor, Op. 45, J. 188: III. Polacca
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