John Browning
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genre: chamber music
description: John Moses Browning (January 23, 1855 – November 26, 1926) was an American firearm designer who developed many varieties of military and civilian firearms, cartridges, and gun mechanisms, many of whic
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album: John Browning: The Complete Musical Heritage Society Recordings 1992-1999
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  date published: 1999
album: Mozart: Piano Concertos Nos. 9 & 23
  type: MusicAlbum
  date published: 1995
album: Barber: The Songs Complete
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  date published: 1994-01-01
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  track: Four Songs Op. 13: No. 2 The Secrets Of The Old - Allegro giocoso
  track: Despite and still Op. 41: No. 4 Solitary Hotel - Like a rather fast tango in 2
  track: Three Songs Op. 45: No. 2 A Green Lowland Of Pianos - Allegretto con grazia
album: 200 Greatest Classical Music Favourites: The Essential Classics
album: S'endormir en musique classique, Vol. 1
album: True Concentration: Classical Music for Studying
album: The Bond Mix Vol. 2: Spies, Detectives, Capers, & Thrillers
album: Weber, Barber & Beethoven: Orchestral Works (Remastered 2023) [Live]
album: The Unreleased Debussy Recital: Pour le piano, Images & Estampes
album: Barber: The Complete Piano Music
album: John Browning Edition, Vol. II - Various Composers
album: John Browning Edition, Vol. I - JFK Recital, November 22, 1963
album: John Browning Edition, Vol. IV - Bach, Haydn, Mozart, Scarlatti
album: John Browning Edition, Vol. III - Beethoven: Diabelli Variations, Sonata No. 17
album: Mozart: Sonatas K. 332, 475, 457 & 533
album: Brahms: Piano Quintet - Horn Trio
album: Barber: Piano Sonata, Op. 26 - Cumming: 24 Preludes
album: Barber - Piano Sonata / Cumming - 24 Preludes
album: Chopin: Etüden Op.10,25
album: Barber: Symphony No. 1 & Piano Concerto & Souvenirs
album: Beethoven: Concerto for Piano, Violin, Cello and Orchestra, Op.56 & Barber: Concerto for Piano and Orchestra, Op. 38
album: Barber: Souvenirs, Op. 28 - Saint-Saëns: The Carnival of the Animals - Debussy: Préludes, Book 2, L. 123
album: Mussorgsky, M.: Pictures at an Exhibition / Piano Sonata / Impromptu Passionne
album: Rachmaninov, S.: Piano Sonata No. 2 / 10 Preludes / Etudes-Tableaux / Moments Musicaux / Daisies
album: Liszt, F.: Piano Sonata in B Minor / Annees De Pelerinage, 2Nd Year, Italy
album: Tchaikovsky: Piano Concerto No. 1 in B-Flat Minor, Op. 23
album: Chopin: Etudes, Op. 10 & Etudes, Op. 25
album: Ravel: Sonatine, M. 40 & Le tombeau de Couperin, M. 68 & Gaspard de la nuit, M. 55
album: Prokofiev: Piano Concerto No. 3 in C Major, Op.26 & Piano Concerto No. 4 in B-Flat Major, Op. 53
album: Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110 & Schumann: Symphonic Etudes, Op.13
album: Prokofiev: Piano Concerto No.2 in G Minor, Op. 16 & Piano Concerto No. 1 in D-Flat Major, Op. 10
album: Beethoven: Diabelli Variations, Op. 120
album: Barber: Concerto for Piano and Orchestra, Op. 38 & Schuman: A Song of Orpheus - Fantasy for Cello and Orchestra
album: Ravel: Piano Concerto for the Left Hand - Prokofiev: Piano Concerto No. 3 (Stereo Version)
album: Beethoven For Relaxation
album: Homework Hits, Vol. 4: (The Movie Score)
album: Chopin For Relaxation
album: In the Morning Light: Peaceful Reflections for a New Age
album: Je n'aime pas le piano mais ça j'aime bien
album: Collection Artistes & Repertoires: Barber

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200 Greatest Classical Music Favourites: The Essential Classics
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Gnossienne No. 1
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Minuet in G Minor, Suite No. 1
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Mirror in the Mirror
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Sonata for Piano in C Major, KV 545: II Andante
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by artist: Daniel Blumenthal
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Sonata for Piano in C Major, KV 545: II Andante
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The Prophet Bird
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by artist: Anna Steiner
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: The Prophet Bird
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Dolly, Op. 56: 1. Berceuse
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by artist: Christian Steiner
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Dolly, Op. 56: 1. Berceuse
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Serenade for Strings in C Op. 48 - Waltz
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by artist: Charles Gerhardt
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Serenade for Strings in C Op. 48 - Waltz
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Humoresque No. 7, Op. 101
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by artist: Staffan Scheja
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Humoresque No. 7, Op. 101
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The Musical Snuff Box
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by artist: New Symphony Orchestra
by artist: Ronnie Chamberlain
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: The Musical Snuff Box
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True Concentration: Classical Music for Studying
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track: Fur Elise
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track: In The Hall Of The Mountain King (From "Peer Gynt")
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track: Piano Concerto, Op. 38: II. Canzone. Moderato
track: Piano Concerto, Op. 38: III. Allegro molto

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Beethoven: Concerto for Piano, Violin, Cello and Orchestra, Op.56 & Barber: Concerto for Piano and Orchestra, Op. 38
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Barber: Souvenirs, Op. 28 - Saint-Saëns: The Carnival of the Animals - Debussy: Préludes, Book 2, L. 123
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date published: 2026-07-08T03:22:41Z

Out of Africa (Theme)
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Terms of Endearment (Theme)
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by artist: The Romantic Strings Orchestra
in album: Homework Hits, Vol. 4: (The Movie Score)
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popularity: 2
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additional property: OTSVerificationAPI
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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: 2026-07-08T03:53:27Z
audio: Terms of Endearment (Theme)
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Chopin For Relaxation
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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track: 24 Préludes, Op. 28: Prelude in F, Op. 28 No. 23
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  subject of: OpenTimestamps Proof of Existence
  audio: 24 Préludes, Op. 28: Prelude in F, Op. 28 No. 23
track: Trois Nouvelles Etudes: No. 2 in A-Flat, Op. post.
track: Berceuse in D-Flat, Op. 57
track: 24 Préludes, Op. 28: Prelude in D-Flat "Raindrop," Op. 28 No. 15
track: Piano Concerto No. 2, Op. 21 in F Minor: Larghetto

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OTSHash
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059599fbfde61dab51baa053da94fa8832b0f8113cdd3c0d3b129de51066f150. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEP629501461.
date published: 2026-07-08T03:53:27Z

24 Préludes, Op. 28: Prelude in F, Op. 28 No. 23
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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Trois Nouvelles Etudes: No. 2 in A-Flat, Op. post.
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by artist: Frédéric Chopin
by artist: Emanuel Ax
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genre: classical
genre: early-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: 2026-07-08T03:20:19Z
audio: Trois Nouvelles Etudes: No. 2 in A-Flat, Op. post.
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Berceuse in D-Flat, Op. 57
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by artist: Peter Serkin
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Berceuse in D-Flat, Op. 57
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24 Préludes, Op. 28: Prelude in D-Flat "Raindrop," Op. 28 No. 15
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audio: 24 Préludes, Op. 28: Prelude in D-Flat "Raindrop," Op. 28 No. 15
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Piano Concerto No. 2, Op. 21 in F Minor: Larghetto
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In the Morning Light: Peaceful Reflections for a New Age
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track: Spiegel Im Spiegel (Mirror in the Mirror)
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Spiegel Im Spiegel (Mirror in the Mirror)
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Je n'aime pas le piano mais ça j'aime bien
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track: Suite Bergamasque, L. 75: III. "Clair de lune"
track: Liebesträume, S. 541: No. 3 (Notturno)
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value: https://explorer.copyrightchains.com/tx/0x7023a1074ba693ef623ea30ecc719bfbd2cf809ec40a2e8f0123a4becc8f29ea

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957124

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19100208

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7023a1074ba693ef623ea30ecc719bfbd2cf809ec40a2e8f0123a4becc8f29ea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USBC19100208.
date published: 2026-07-08T03:53:27Z

Piano Concerto No. 23 in A Major, K. 488: II. Adagio
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 102.209
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.244
additional property: Energy
  type: PropertyValue
  value: 0.118
additional property: Speechiness
  type: PropertyValue
  value: 0.034
additional property: Acousticness
  type: PropertyValue
  value: 0.989
additional property: Instrumentalness
  type: PropertyValue
  value: 0.934
additional property: Liveness
  type: PropertyValue
  value: 0.132
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.071
additional property: Loudness (dB)
  type: PropertyValue
  value: -22.128
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Minor

Suite Bergamasque, L. 75: III. "Clair de lune"
type: MusicRecording
duration: PT5M16S
duration ms: 316360
explicit: false
by artist: Claude Debussy
by artist: Kathryn Stott
in album: Je n'aime pas le piano mais ça j'aime bien
  type: MusicAlbum
  date published: 2012-04-02
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: GBARU8700005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T18:28:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e1630283aca798bb37e1204329a483b892d013c701e6b38528a0c042c91fb30
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBARU8700005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1630283aca798bb37e1204329a483b892d013c701e6b38528a0c042c91fb30. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBARU8700005.
  date published: 2026-07-08T03:20:19Z
audio: Suite Bergamasque, L. 75: III. "Clair de lune"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.408
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.418
  additional property: Energy
    type: PropertyValue
    value: 0.011
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.929
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.158
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Liebesträume, S. 541: No. 3 (Notturno)
type: MusicRecording
duration: PT5M6S
duration ms: 306253
explicit: false
by artist: Franz Liszt
by artist: Gerhard Oppitz
in album: Je n'aime pas le piano mais ça j'aime bien
  type: MusicAlbum
  date published: 2012-04-02
genre: classical
genre: late-romantic-era
isrc code: USBC19500303
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T23:22:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa88ec5a0c9e98a95df2112686761e48557c7207eb3c902990f0f8ef94c4eb547
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19500303
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88ec5a0c9e98a95df2112686761e48557c7207eb3c902990f0f8ef94c4eb547. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19500303.
  date published: 2026-07-08T03:20:19Z
audio: Liebesträume, S. 541: No. 3 (Notturno)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.499
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.226
  additional property: Energy
    type: PropertyValue
    value: 0.143
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.891
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.737
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piano Concerto No. 2 in G Minor, Op. 22: III. Presto
type: MusicRecording
duration: PT6M21S
duration ms: 381106
explicit: false
by artist: Camille Saint-Saëns
by artist: Philippe Entremont
by artist: Michel Plasson
by artist: L'orchestre du Capitole de Toulouse
by artist: Orchestre Nationale du Capitole de Toulouse
in album: Je n'aime pas le piano mais ça j'aime bien
  type: MusicAlbum
  date published: 2012-04-02
genre: classical
genre: late-romantic-era
genre: french-romanticism
isrc code: USSM10202693
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:36:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa401e163bd12f5ac5c4e8449ae5d3cf0e30fa24df7a10abdee0613b2f88269ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10202693
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa401e163bd12f5ac5c4e8449ae5d3cf0e30fa24df7a10abdee0613b2f88269ff. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USSM10202693.
  date published: 2026-07-08T03:53:27Z
audio: Piano Concerto No. 2 in G Minor, Op. 22: III. Presto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.223
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.357
  additional property: Energy
    type: PropertyValue
    value: 0.414
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.896
  additional property: Liveness
    type: PropertyValue
    value: 0.218
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.25
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.109
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Collection Artistes & Repertoires: Barber
type: MusicAlbum
date published: 2003-03-01
track: Adagio for Strings, Op. 11
  type: MusicRecording
  duration: PT7M44S
  duration ms: 464040
  explicit: false
  by artist: Samuel Barber
  by artist: Charles Münch
  by artist: Boston Symphony Orchestra
  in album: Collection Artistes & Repertoires: Barber
    type: MusicAlbum
    date published: 2003-03-01
  isrc code: USBC19704261
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T22:57:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa3baa5f567a115ae76ecd99204fd47ba403900abec94d03f53dbbbd626bbfe01
  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/USBC19704261
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3baa5f567a115ae76ecd99204fd47ba403900abec94d03f53dbbbd626bbfe01. 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/USBC19704261.
    date published: 2026-07-02T03:55:08Z
  audio: Adagio for Strings, Op. 11
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.857
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.137
    additional property: Energy
      type: PropertyValue
      value: 0.119
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.953
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.917
    additional property: Liveness
      type: PropertyValue
      value: 0.122
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.034
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.874
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Symphony No. 1, Op. 9: II. Allegro molto
  type: MusicRecording
  duration: PT4M17S
  duration ms: 257853
  explicit: false
  by artist: Samuel Barber
  by artist: Leonard Slatkin
  in album: Collection Artistes & Repertoires: Barber
    type: MusicAlbum
    date published: 2003-03-01
  isrc code: USBC19000748
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T03:26:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x19b651985a2b68d0584ff3b2cf4f74c7b4697db5d2ab9f110c051fecae1bbaa4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19000748
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b651985a2b68d0584ff3b2cf4f74c7b4697db5d2ab9f110c051fecae1bbaa4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USBC19000748.
    date published: 2026-07-08T03:53:27Z
  audio: Symphony No. 1, Op. 9: II. Allegro molto
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.787
    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: 0.341
    additional property: Energy
      type: PropertyValue
      value: 0.214
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.92
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.897
    additional property: Liveness
      type: PropertyValue
      value: 0.128
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.199
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.806
    additional property: Key Name
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      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major