Ludwig Hoffmann
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genre: classical
genre: classical piano
description: Ludwig Hoffmann or Hofmann may refer to: Ludwig Hoffmann (Pilot and design engineer) (1912–1979), German test and glider pilot and design engineer Ludwig Hoffmann (architect) (1852–1932), German ar
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album: It's Nap Time
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album: Michael Gielen Edition, Vol. 4 (1968-2014)
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album: Futuros Genios: Música Clásica Para Niños
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album: Mozart 225: Complete Duos
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  track: Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1
  track: Rêverie, L. 68: Rêverie
  track: Suite bergamasque, L. 75: III. Clair de lune
  track: Fate
  track: Scarborough Fair (Arr. Parkin for Cello and Guitar)
  track: Lo, the full, final sacrifice, Op. 26: Amen - Instrumental
  track: Nocturne No. 19 in E Minor, Op. 72, No. 1
  track: A Sparrow Alighted upon our Shoulder
  track: To The Stars - Dragonheart/Soundtrack Version
  track: Dawn - From "Pride & Prejudice" Soundtrack
  track: Méditation from Thaïs
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  track: Limu, limu, lima (Arr. Schindler for Piano)
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  track: Opening Titles - From "The Chronicles of Narnia: The Voyage of the Dawn Treader"/Score
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  track: Cello Sonata No. 4 in C Major, Op. 102 No. 1: I. Andante –
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  track: Duneagle - From “Downton Abbey” Soundtrack
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  track: Suite from The Theory of Everything: IV. Forces of Attraction
  track: Nerevar Rising - From "The Elder Scrolls III: Morrowind"
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  track: Alla sera - Kettenkarussell's Triangle Player Rework
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  track: Gnossienne No. 4
  track: Suite from Sicario: II. Desert Music
  track: By the Roes, and by the Hinds of the Field
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  track: Dawn Of Truth - Fejká Remix
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album: Liszt: Piano Concertos Nos. 1 & 2
album: Great Voices Of The Opera Vol. 10
album: Liszt Essentials
album: Chopin - Popular Piano Pieces
album: Piano Masterpieces: Listen to Liszt! A Recital
album: Mozart: Sonatas for Piano 4 Hands, K. 381, 497 & 521 and 5 Variations in G Major for Piano 4 Hands, K. 501
album: Mozart: Sonatas for Piano 4 Hands, K. 19d, 357 & 358
album: Tchaikovsky: Piano Concerto No. 1 in B Flat Minor, Op. 23
album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
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album: Récital Franz Liszt (Mono Version)
album: Liszt: Mephisto-Walzer No. 1, Faust-Walzer & Don Juan-Fantasie (Mono Version)
album: Mozart: Sonates et variations pour piano à quatre mains, vol. 2 (Mono Version)
album: Mozart: Sonates et variations pour piano à quatre mains, vol. 1 (Mono Version)
album: Mozart: Piano Works for Four-Hands by Ingrid Haebler & Ludwig Hoffmann (2025 Remastered, Studio 1959)
album: Ludwig Hoffmann / Sinfonieorchester des Südwestfunks spielen: Franz Liszt: Totentanz - Paraphrase auf 'Dies Irae' für Klavier und Orchester, S 126
album: Liszt: 2 Legenden, Liebestraum No. 3 & Rigoletto-Paraphrase (Mono Version)
album: Beethoven: Piano Sonatas Nos. 8 "Pathétique" & 14 "Moonlight Sonata" (Mono Version)
album: Mozart: Complete Edition Box 9: Piano Music
album: "LSO Plays" - Mozart, Beethoven & Chopin
album: Ein armes Tier ist das Klavier - Das große Abenteuer Musik - Folge 2
album: Mozart: Complete Variations for Piano
album: Miauzart! Música Clásica Para Gatos
album: Schubert: The Piano Sonatas
album: Te Sorprendería Lo Que Un Piano Puede Hacer
album: Easy Christmas
album: Mozart: Piano Concertos Nos. 9-13
album: Mozart Piano Concertos: Nos. 1-8
album: Schubert: Impromptus Op. 90 & 142
album: Schubert: Fantasie, Op. 103, D. 940, Alfred Brendel vs Ingrid Haebler vs. Paul Badura-Skoda (Compare 3 Versions)
album: Golden Piano Classics

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Wind Song
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Nocturne No. 1 in B-Flat Minor, Op. 9 No. 1
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Rêverie, L. 68: Rêverie
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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
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c96abde9f11e360d20fcbe96e962ee3d76712abd921b5ca8fbdcc0bb8426b1. 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/GBF079411430.
  date published: 2026-07-02T03:30:09Z
audio: Rêverie, L. 68: Rêverie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.642
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.236
  additional property: Energy
    type: PropertyValue
    value: 0.015
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.918
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.061
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.184
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Suite bergamasque, L. 75: III. Clair de lune
type: MusicRecording
duration: PT4M54S
duration ms: 294960
explicit: false
by artist: Claude Debussy
by artist: Alice Sara Ott
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: DEN961800253
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-01T07:49:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7260e6c94cc2b82f8ba0e61ac916d1693740b973c0f11232cdd7f11d9f1a136
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/DEN961800253
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 0xd7260e6c94cc2b82f8ba0e61ac916d1693740b973c0f11232cdd7f11d9f1a136. 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/DEN961800253.
  date published: 2026-07-02T03:30:09Z
audio: Suite bergamasque, L. 75: III. Clair de lune
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 96.884
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.32
  additional property: Energy
    type: PropertyValue
    value: 0.005
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.919
  additional property: Liveness
    type: PropertyValue
    value: 0.062
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.415
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Fate
type: MusicRecording
duration: PT4M8S
duration ms: 248135
explicit: false
by artist: Christian Löffler
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: hamburg-electronic
genre: organic-electronic
genre: electronica
genre: pop-ambient
isrc code: DEN962002950
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T10:32:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c6cc7bbac1edab64c8123ff85d1cd859377e325ed29f3cb128a8a2c252b444e
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/DEN962002950
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 0x8c6cc7bbac1edab64c8123ff85d1cd859377e325ed29f3cb128a8a2c252b444e. 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/DEN962002950.
  date published: 2026-07-02T03:55:08Z
audio: Fate
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.232
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.503
  additional property: Energy
    type: PropertyValue
    value: 0.317
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.865
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.939
  additional property: Liveness
    type: PropertyValue
    value: 0.094
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.211
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Scarborough Fair (Arr. Parkin for Cello and Guitar)
type: MusicRecording
duration: PT3M14S
duration ms: 194533
explicit: false
by artist: Traditional
by artist: Sheku Kanneh-Mason
by artist: Plínio Fernandes
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: bhajan
genre: gregorian-chant
genre: medieval
genre: traditional-music
isrc code: GBF071900750
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T08:40:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe369405c5db8fc051fa4a4bfd31c44b85a9d799f1ea9d453817c4fee5694472d
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/GBF071900750
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 0xe369405c5db8fc051fa4a4bfd31c44b85a9d799f1ea9d453817c4fee5694472d. 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/GBF071900750.
  date published: 2026-07-02T03:55:08Z
audio: Scarborough Fair (Arr. Parkin for Cello and Guitar)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.188
  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: 0.311
  additional property: Energy
    type: PropertyValue
    value: 0.024
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.888
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.256
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.806
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Lo, the full, final sacrifice, Op. 26: Amen - Instrumental
type: MusicRecording
duration: PT2M40S
duration ms: 160240
explicit: false
by artist: Gerald Finzi
by artist: Amy Dickson
by artist: Aurora Orchestra
by artist: Nicholas Collon
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
isrc code: GBF071503830
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T10:40:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x415ad5ee299d44999807efee3a6a3051707976cf7e3e3888cc5915ee9f0551b3
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/GBF071503830
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 0x415ad5ee299d44999807efee3a6a3051707976cf7e3e3888cc5915ee9f0551b3. 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/GBF071503830.
  date published: 2026-07-02T03:30:09Z
audio: Lo, the full, final sacrifice, Op. 26: Amen - Instrumental
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.039
  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: 0.089
  additional property: Energy
    type: PropertyValue
    value: 0.09
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.921
  additional property: Liveness
    type: PropertyValue
    value: 0.15
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.07
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.773
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nocturne No. 19 in E Minor, Op. 72, No. 1
type: MusicRecording
duration: PT4M1S
duration ms: 241986
explicit: false
by artist: Frédéric Chopin
by artist: Benjamin Grosvenor
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: GBBBA1100450
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-01T18:18:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20ff32a53828675f3446f843359bf842d58baf5ca01fdba1bb78a3f0ba72ddbd
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/GBBBA1100450
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 0x20ff32a53828675f3446f843359bf842d58baf5ca01fdba1bb78a3f0ba72ddbd. 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/GBBBA1100450.
  date published: 2026-07-02T03:55:08Z
audio: Nocturne No. 19 in E Minor, Op. 72, No. 1
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.307
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.331
  additional property: Energy
    type: PropertyValue
    value: 0.007
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.952
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.094
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.142
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

A Sparrow Alighted upon our Shoulder
type: MusicRecording
duration: PT2M26S
duration ms: 146440
explicit: false
by artist: Jóhann Jóhannsson
by artist: Air Lyndhurst String Orchestra
by artist: Anthony Weeden
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: soundtrack
genre: icelandic-experimental
genre: compositional-ambient
genre: experimental-classical
genre: icelandic-classical
genre: nordic-soundtrack
isrc code: DEN961630006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T06:35:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d4803f35a3fc9708eca292a94903560b5ae25cc50fcdd34a545da4a24f68acc
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/DEN961630006
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 0x7d4803f35a3fc9708eca292a94903560b5ae25cc50fcdd34a545da4a24f68acc. 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/DEN961630006.
  date published: 2026-07-02T03:30:09Z
audio: A Sparrow Alighted upon our Shoulder
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 71.038
  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: 0.35
  additional property: Energy
    type: PropertyValue
    value: 0.125
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.925
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.937
  additional property: Liveness
    type: PropertyValue
    value: 0.131
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.048
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.525
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

To The Stars - Dragonheart/Soundtrack Version
type: MusicRecording
duration: PT3M14S
duration ms: 194093
explicit: false
by artist: Randy Edelman
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
isrc code: USMC19649047
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T16:11:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51ac496f3f1b94e7fab63009ea71c7a16d9b68f4e660b7366fba914c62001d7f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMC19649047
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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 0x51ac496f3f1b94e7fab63009ea71c7a16d9b68f4e660b7366fba914c62001d7f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USMC19649047.
  date published: 2026-06-13T12:53:06Z
audio: To The Stars - Dragonheart/Soundtrack Version
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  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.085
  additional property: Energy
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    value: 0.265
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.926
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.826
  additional property: Liveness
    type: PropertyValue
    value: 0.043
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.125
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
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Dawn - From "Pride & Prejudice" Soundtrack
type: MusicRecording
duration: PT2M34S
duration ms: 154853
explicit: false
by artist: Dario Marianelli
by artist: Jean-Yves Thibaudet
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: soundtrack
isrc code: GBEKZ0500051
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe3506ca6f1de1bd959ee700754575cb3aab6e28ea14da9503b669ade95061d3
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/GBEKZ0500051
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 0xbe3506ca6f1de1bd959ee700754575cb3aab6e28ea14da9503b669ade95061d3. 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/GBEKZ0500051.
  date published: 2026-07-02T03:55:08Z
audio: Dawn - From "Pride & Prejudice" Soundtrack
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 163.553
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.268
  additional property: Energy
    type: PropertyValue
    value: 0.134
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.912
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  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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Méditation from Thaïs
type: MusicRecording
duration: PT5M37S
duration ms: 337973
explicit: false
by artist: Jules Massenet
by artist: Nicola Benedetti
by artist: London Symphony Orchestra
by artist: Daniel Harding
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
isrc code: GBEKZ0500009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83d481d0dbd1e087e285ef48476490518111731bfe9fc0cd65aab777901c3c0a
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/GBEKZ0500009
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 0x83d481d0dbd1e087e285ef48476490518111731bfe9fc0cd65aab777901c3c0a. 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/GBEKZ0500009.
  date published: 2026-07-02T03:55:08Z
audio: Méditation from Thaïs
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.006
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.128
  additional property: Energy
    type: PropertyValue
    value: 0.135
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.876
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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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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Pastoral
type: MusicRecording
duration: PT3M40S
duration ms: 220630
explicit: false
by artist: Christian Löffler
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: hamburg-electronic
genre: organic-electronic
genre: electronica
genre: pop-ambient
isrc code: DEN962002940
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T08:59:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcfacb074dcfcbfcbec92fcd61358caad5f77a3b0ed4cdd154e78c9830cd73f6f
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/DEN962002940
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 0xcfacb074dcfcbfcbec92fcd61358caad5f77a3b0ed4cdd154e78c9830cd73f6f. 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/DEN962002940.
  date published: 2026-07-02T03:55:08Z
audio: Pastoral
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.471
  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: 0.163
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.937
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.034
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Limu, limu, lima (Arr. Schindler for Piano)
type: MusicRecording
duration: PT5M35S
duration ms: 335360
explicit: false
by artist: Traditional
by artist: Lang Lang
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: bhajan
genre: gregorian-chant
genre: medieval
genre: traditional-music
isrc code: DEN961802140
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T10:22:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5cb1020919974867cae3d6c3a34ee86b25580d6c6b3918315b81c653a9038fe1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/DEN961802140
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 0x5cb1020919974867cae3d6c3a34ee86b25580d6c6b3918315b81c653a9038fe1. 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/DEN961802140.
  date published: 2026-07-02T03:55:08Z
audio: Limu, limu, lima (Arr. Schindler for Piano)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 4
  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: 0.338
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Nocturne No. 6 in G Minor, Op. 15 No. 3
type: MusicRecording
duration: PT3M56S
duration ms: 236466
explicit: false
by artist: Frédéric Chopin
by artist: Daniel Barenboim
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: DEF058101060
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T19:01:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x973e9292bc2809e6dc2752aaf5d2db088fa451ed05311e26728da195443dafaf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/DEF058101060
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973e9292bc2809e6dc2752aaf5d2db088fa451ed05311e26728da195443dafaf. 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/DEF058101060.
  date published: 2026-07-02T03:55:08Z
audio: Nocturne No. 6 in G Minor, Op. 15 No. 3
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  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: 0.454
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Opening Titles - From "The Chronicles of Narnia: The Voyage of the Dawn Treader"/Score
type: MusicRecording
duration: PT1M7S
duration ms: 67093
explicit: false
by artist: David Arnold
by artist: Nicholas Dodd
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
isrc code: USFM91000267
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T15:26:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd036266d488c4ef1ca7397597a8ac3f6f3c95e1520c58a27a196a89eaedb59e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/USFM91000267
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd036266d488c4ef1ca7397597a8ac3f6f3c95e1520c58a27a196a89eaedb59e2. 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/USFM91000267.
  date published: 2026-07-02T03:55:08Z
audio: Opening Titles - From "The Chronicles of Narnia: The Voyage of the Dawn Treader"/Score
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 108.247
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.237
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Minor

Flight from the City
type: MusicRecording
duration: PT6M31S
duration ms: 391160
explicit: false
by artist: Jóhann Jóhannsson
by artist: Yuki Numata Resnick
by artist: Tarn Travers
by artist: Ben Russell
by artist: Clarice Jensen
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: soundtrack
genre: icelandic-experimental
genre: compositional-ambient
genre: experimental-classical
genre: icelandic-classical
genre: nordic-soundtrack
isrc code: DEN961630001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T06:42:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac1612c58350c4fc6c66adb8261f02b51d9eb910326a74b8c9669f100b8792a5
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/DEN961630001
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 0xac1612c58350c4fc6c66adb8261f02b51d9eb910326a74b8c9669f100b8792a5. 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/DEN961630001.
  date published: 2026-07-02T03:55:08Z
audio: Flight from the City
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.812
  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: 0.089
  additional property: Energy
    type: PropertyValue
    value: 0.085
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.93
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.917
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.866
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
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Cello Sonata No. 4 in C Major, Op. 102 No. 1: I. Andante –
type: MusicRecording
duration: PT2M59S
duration ms: 179133
explicit: false
by artist: Ludwig van Beethoven
by artist: Mischa Maisky
by artist: Martha Argerich
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF059203841
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T15:29:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22e8a1f76b8b6a9b44470febc10d907716f04f54c2b8b96fe1e33939340733aa
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/DEF059203841
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 0x22e8a1f76b8b6a9b44470febc10d907716f04f54c2b8b96fe1e33939340733aa. 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/DEF059203841.
  date published: 2026-07-02T03:55:08Z
audio: Cello Sonata No. 4 in C Major, Op. 102 No. 1: I. Andante –
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.267
  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: 0.199
  additional property: Energy
    type: PropertyValue
    value: 0.008
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.59
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.129
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.157
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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When I Sail
type: MusicRecording
duration: PT1M26S
duration ms: 86426
explicit: false
by artist: Clinton Shorter
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
isrc code: QMCXZ2000244
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T15:54:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4bca85e5a585417a2ccd71be958b899cc5ef4ee9b56bb8ab215d2cda67bbbf7d
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/QMCXZ2000244
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 0x4bca85e5a585417a2ccd71be958b899cc5ef4ee9b56bb8ab215d2cda67bbbf7d. 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/QMCXZ2000244.
  date published: 2026-07-02T03:55:08Z
audio: When I Sail
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.522
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.148
  additional property: Energy
    type: PropertyValue
    value: 0.185
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.892
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.222
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.05
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.929
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Duneagle - From “Downton Abbey” Soundtrack
type: MusicRecording
duration: PT2M6S
duration ms: 126853
explicit: false
by artist: John Lunn
by artist: The Chamber Orchestra Of London
by artist: Alastair King
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
isrc code: GBUM71507219
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T08:21:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec36bb87481a28e1fc84beec5ae6d401d26471959d85fc2cc957b5e83968a397
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/GBUM71507219
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 0xec36bb87481a28e1fc84beec5ae6d401d26471959d85fc2cc957b5e83968a397. 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/GBUM71507219.
  date published: 2026-07-02T03:55:08Z
audio: Duneagle - From “Downton Abbey” Soundtrack
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.607
  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: 0.342
  additional property: Energy
    type: PropertyValue
    value: 0.197
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.909
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.28
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.754
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Freiyheit
type: MusicRecording
duration: PT3M1S
duration ms: 181798
explicit: false
by artist: Christian Löffler
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: hamburg-electronic
genre: organic-electronic
genre: electronica
genre: pop-ambient
isrc code: DEN962002970
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:35:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14043d81806faebe484a5688acbf35303ca816edf36c56c3163858e5b71dfb01
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/DEN962002970
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 0x14043d81806faebe484a5688acbf35303ca816edf36c56c3163858e5b71dfb01. 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/DEN962002970.
  date published: 2026-07-02T03:55:08Z
audio: Freiyheit
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.062
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.225
  additional property: Energy
    type: PropertyValue
    value: 0.174
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.948
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.079
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.355
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Appalachian Spring Suite: I. Very Slowly
type: MusicRecording
duration: PT3M0S
duration ms: 180346
explicit: false
by artist: Aaron Copland
by artist: Los Angeles Philharmonic
by artist: Zubin Mehta
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
genre: orchestra
isrc code: GBF077610371
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T13:55:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5b46be05dfe24737588aee5895a12c47a8def60019f41f79a8763120b839379
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/GBF077610371
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 0xa5b46be05dfe24737588aee5895a12c47a8def60019f41f79a8763120b839379. 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/GBF077610371.
  date published: 2026-07-02T03:55:08Z
audio: Appalachian Spring Suite: I. Very Slowly
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.189
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.126
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.858
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.032
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.88
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
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Part 1.1
type: MusicRecording
duration: PT1M44S
duration ms: 104746
explicit: false
by artist: Jóhann Jóhannsson
by artist: Guðmundur Sigurðsson
by artist: Hörður Bragason
by artist: Skúli Sverrisson
by artist: Matthías M.D. Hemstock
by artist: Caput Ensemble
by artist: Guðni Franzson
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: soundtrack
genre: icelandic-experimental
genre: compositional-ambient
genre: experimental-classical
genre: icelandic-classical
genre: nordic-soundtrack
isrc code: DEN960432332
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:33:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x285442a3538d6e05bc2d6aebe797fdb53e538923688b974a89248bbc32cbaa7b
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/DEN960432332
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 0x285442a3538d6e05bc2d6aebe797fdb53e538923688b974a89248bbc32cbaa7b. 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/DEN960432332.
  date published: 2026-07-02T03:55:08Z
audio: Part 1.1
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 50
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0
  additional property: Energy
    type: PropertyValue
    value: 0
  additional property: Speechiness
    type: PropertyValue
    value: 0
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.615
  additional property: Key Name
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    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Sonata for 2 Pianos in D Major, K. 448: II. Andante
type: MusicRecording
duration: PT9M22S
duration ms: 562680
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507610602
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T13:54:17+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x7ba9bf69cded86d8820e7d03858e75b7b9fcaf972d992ba5fc828e6b726cf93c
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/NLA507610602
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 0x7ba9bf69cded86d8820e7d03858e75b7b9fcaf972d992ba5fc828e6b726cf93c. 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/NLA507610602.
  date published: 2026-07-02T03:55:08Z
audio: Sonata for 2 Pianos in D Major, K. 448: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 124.668
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.379
  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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    value: -31.999
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Notte senza fine - Kiasmos Remix
type: MusicRecording
duration: PT6M28S
duration ms: 388153
explicit: false
by artist: carmine conte
by artist: Matteo Milleri
by artist: Tale Of Us
by artist: Kiasmos
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
isrc code: DEN961730606
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T11:35:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd6385ddb2c414d388e6d60ada663af0f41cd8c086218a9d0c6b4fa51071c4437
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/DEN961730606
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 0xd6385ddb2c414d388e6d60ada663af0f41cd8c086218a9d0c6b4fa51071c4437. 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/DEN961730606.
  date published: 2026-07-02T03:55:08Z
audio: Notte senza fine - Kiasmos Remix
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 131.608
  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: 0.704
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.912
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.227
  additional property: Loudness (dB)
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    value: -20.166
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Sonata In G Minor For Cello & Piano, Op. 65: 3. Largo
type: MusicRecording
duration: PT3M37S
duration ms: 217320
explicit: false
by artist: Frédéric Chopin
by artist: Alisa Weilerstein
by artist: Inon Barnatan
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: GBF071502143
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T16:34:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x10c18f5f9edcc42886ffdf4baea199c05b836e72ecb8dbcb41e82bb1621b7c97
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957075
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957075
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071502143
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:50:38Z
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 0x10c18f5f9edcc42886ffdf4baea199c05b836e72ecb8dbcb41e82bb1621b7c97. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBF071502143.
  date published: 2026-07-07T18:50:38Z
audio: Sonata In G Minor For Cello & Piano, Op. 65: 3. Largo
  type: AudioObject
  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
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.053
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.929
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
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L'Arlésienne Suite No. 2 (Arr. Guiraud): III. Menuet
type: MusicRecording
duration: PT4M28S
duration ms: 268666
explicit: false
by artist: Georges Bizet
by artist: Orchestre Symphonique de Montréal
by artist: Charles Dutoit
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
genre: opera
isrc code: GBF078611343
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T04:35:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee16117443cb87186a83453e78ae0f85d138e0fb8f7e08c84f537d4ec8a29b9f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956894
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956894
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078611343
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:53:57Z
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 0xee16117443cb87186a83453e78ae0f85d138e0fb8f7e08c84f537d4ec8a29b9f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBF078611343.
  date published: 2026-07-06T07:53:57Z
audio: L'Arlésienne Suite No. 2 (Arr. Guiraud): III. Menuet
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.336
  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: 0.169
  additional property: Energy
    type: PropertyValue
    value: 0.016
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.948
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.748
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.223
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.19
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
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Suite from The Theory of Everything: IV. Forces of Attraction
type: MusicRecording
duration: PT1M58S
duration ms: 118133
explicit: false
by artist: Jóhann Jóhannsson
by artist: Iceland Symphony Orchestra
by artist: Daníel Bjarnason
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: soundtrack
genre: icelandic-experimental
genre: compositional-ambient
genre: experimental-classical
genre: icelandic-classical
genre: nordic-soundtrack
isrc code: DEN962301204
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T04:35:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfb9afe7e38eaba5c08b9a0597caf00d50842d3cd8e71c0c75ce316270ba580b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962301204
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 0xfb9afe7e38eaba5c08b9a0597caf00d50842d3cd8e71c0c75ce316270ba580b1. 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/DEN962301204.
  date published: 2026-07-06T06:56:49Z
audio: Suite from The Theory of Everything: IV. Forces of Attraction
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.168
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.37
  additional property: Energy
    type: PropertyValue
    value: 0.079
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.765
  additional property: Liveness
    type: PropertyValue
    value: 0.123
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.154
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.029
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Nerevar Rising - From "The Elder Scrolls III: Morrowind"
type: MusicRecording
duration: PT1M31S
duration ms: 91075
explicit: false
by artist: Jeremy Soule
by artist: Czech National Symphony Orchestra, Prague
by artist: Paul Bateman
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
isrc code: GBF071500290
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T11:28:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf90d89488462b631222a12462926c84efcb7c31ba133afecf016d52fbef096ad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071500290
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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 0xf90d89488462b631222a12462926c84efcb7c31ba133afecf016d52fbef096ad. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBF071500290.
  date published: 2026-06-13T12:53:06Z
audio: Nerevar Rising - From "The Elder Scrolls III: Morrowind"
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 100.704
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.282
  additional property: Energy
    type: PropertyValue
    value: 0.111
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.916
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.952
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.055
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.165
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Two Figures By A Fountain
type: MusicRecording
duration: PT1M15S
duration ms: 75960
explicit: false
by artist: Dario Marianelli
by artist: Jean-Yves Thibaudet
by artist: Benjamin Wallfisch
by artist: English Chamber Orchestra
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: soundtrack
isrc code: GBUM70704846
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:40:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeddba726913fc3124f0061d6e65c2d0943ed7066dbef4acf050417c15fc26273
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956894
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956894
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70704846
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:53:57Z
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 0xeddba726913fc3124f0061d6e65c2d0943ed7066dbef4acf050417c15fc26273. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBUM70704846.
  date published: 2026-07-06T07:53:57Z
audio: Two Figures By A Fountain
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 5
  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: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.217
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.815
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.4
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.549
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Nadir
type: MusicRecording
duration: PT1M53S
duration ms: 113964
explicit: false
by artist: Christian Löffler
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: hamburg-electronic
genre: organic-electronic
genre: electronica
genre: pop-ambient
isrc code: DEN962003060
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T16:09:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c1c12278d12f7ec3a3a952638a9526292bf0ba6b3ee762f91a44c8afd21f25a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962003060
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 0x7c1c12278d12f7ec3a3a952638a9526292bf0ba6b3ee762f91a44c8afd21f25a. 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/DEN962003060.
  date published: 2026-07-06T06:56:49Z
audio: Nadir
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.86
  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: 0.332
  additional property: Energy
    type: PropertyValue
    value: 0.198
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.863
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.889
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.078
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.515
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Alla sera - Kettenkarussell's Triangle Player Rework
type: MusicRecording
duration: PT6M56S
duration ms: 416836
explicit: false
by artist: carmine conte
by artist: Matteo Milleri
by artist: Tale Of Us
by artist: Kettenkarussell
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
isrc code: DEN961730602
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:41:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5811437be8ccfd46add9257050ccc2cc8b4a751b53b1d2a2e440a7ede68538cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730602
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 0x5811437be8ccfd46add9257050ccc2cc8b4a751b53b1d2a2e440a7ede68538cc. 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/DEN961730602.
  date published: 2026-07-06T06:56:49Z
audio: Alla sera - Kettenkarussell's Triangle Player Rework
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.917
  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: 0.68
  additional property: Energy
    type: PropertyValue
    value: 0.326
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.5
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.924
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.072
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.796
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

String Quartet in D Minor, Op. 56 "Voces intimae": I. Andante – Allegro molto moderato
type: MusicRecording
duration: PT5M52S
duration ms: 352986
explicit: false
by artist: Jean Sibelius
by artist: Emerson String Quartet
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
genre: impressionism
genre: post-romantic-era
genre: finnish-classical
isrc code: DEN960401331
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T09:03:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd4a7163fec55061e4883cfc912fb89873924a0d550eeea1e42777a51525cbf21
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960401331
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 0xd4a7163fec55061e4883cfc912fb89873924a0d550eeea1e42777a51525cbf21. 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/DEN960401331.
  date published: 2026-07-06T06:56:49Z
audio: String Quartet in D Minor, Op. 56 "Voces intimae": I. Andante – Allegro molto moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.987
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.296
  additional property: Energy
    type: PropertyValue
    value: 0.057
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.315
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.115
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.757
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Scene Suspended (Arr. Lawson)
type: MusicRecording
duration: PT3M58S
duration ms: 238173
explicit: false
by artist: Jon Hopkins
by artist: VOCES8
by artist: Eleanor Turner
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: electronica
genre: intelligent-dance-music
isrc code: GBBBC2100198
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T05:06:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x351d5c4b262fe2593c3eb796196fc6e0f6ea72edfe9c8cdb8ac85febecb09eaa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2100198
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 0x351d5c4b262fe2593c3eb796196fc6e0f6ea72edfe9c8cdb8ac85febecb09eaa. 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/GBBBC2100198.
  date published: 2026-07-06T06:56:49Z
audio: Scene Suspended (Arr. Lawson)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.123
  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: 0.14
  additional property: Energy
    type: PropertyValue
    value: 0.017
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.969
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.532
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Part 3.4
type: MusicRecording
duration: PT2M36S
duration ms: 156492
explicit: false
by artist: Jóhann Jóhannsson
by artist: Guðmundur Sigurðsson
by artist: Hörður Bragason
by artist: Skúli Sverrisson
by artist: Matthías M.D. Hemstock
by artist: Caput Ensemble
by artist: Guðni Franzson
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: soundtrack
genre: icelandic-experimental
genre: compositional-ambient
genre: experimental-classical
genre: icelandic-classical
genre: nordic-soundtrack
isrc code: DEN960432348
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T06:13:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe07d6716334e911bfbbf1f8e182826fbcd3791809efada190cac3cd9a8f2e737
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956894
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956894
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960432348
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:53:57Z
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 0xe07d6716334e911bfbbf1f8e182826fbcd3791809efada190cac3cd9a8f2e737. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEN960432348.
  date published: 2026-07-06T07:53:57Z
audio: Part 3.4
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.253
  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: 0.128
  additional property: Energy
    type: PropertyValue
    value: 0.002
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.819
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.857
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.028
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.45
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Gnossienne No. 4
type: MusicRecording
duration: PT3M36S
duration ms: 216680
explicit: false
by artist: Erik Satie
by artist: Jean-Yves Thibaudet
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: classical
genre: classical-piano
genre: impressionism
isrc code: GBBBB0105505
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7370d851c1809ce25a01c8b1b00a81a10050a7cb3f7cac07efa149575e7d949
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960117
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960117
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB0105505
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T14:28:24Z
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 0xc7370d851c1809ce25a01c8b1b00a81a10050a7cb3f7cac07efa149575e7d949. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBBBB0105505.
  date published: 2026-07-29T14:28:24Z
audio: Gnossienne No. 4
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.769
  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: 0.211
  additional property: Energy
    type: PropertyValue
    value: 0.003
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.887
  additional property: Liveness
    type: PropertyValue
    value: 0.076
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.106
  additional property: Loudness (dB)
    type: PropertyValue
    value: -40.203
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Suite from Sicario: II. Desert Music
type: MusicRecording
duration: PT4M4S
duration ms: 244659
explicit: false
by artist: Jóhann Jóhannsson
by artist: Iceland Symphony Orchestra
by artist: Daníel Bjarnason
in album: Reading Music
  type: MusicAlbum
  date published: 2023-11-16
genre: soundtrack
genre: icelandic-experimental
genre: compositional-ambient
genre: experimental-classical
genre: icelandic-classical
genre: nordic-soundtrack
isrc code: DEN962301212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T04:10:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f3d304f63c3581ab0beeb07818be603ceb5f490f70ee9a1ef3f794737ca4a65
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956894
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956894
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962301212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:53:57Z
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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By the Roes, and by the Hinds of the Field
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Moldau
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Ricordi
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Dawn Of Truth - Fejká Remix
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Gymnopédie No. 1 - Dominik Eulberg Rework (FRAGMENTS / Erik Satie)
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Liszt: Piano Concertos Nos. 1 & 2
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Great Voices Of The Opera Vol. 10
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Liszt Essentials
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Chopin - Popular Piano Pieces
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Piano Masterpieces: Listen to Liszt! A Recital
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Mozart: Sonatas for Piano 4 Hands, K. 381, 497 & 521 and 5 Variations in G Major for Piano 4 Hands, K. 501
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Mozart: Sonatas for Piano 4 Hands, K. 19d, 357 & 358
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Tchaikovsky: Piano Concerto No. 1 in B Flat Minor, Op. 23
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    date published: 2026-07-29T12:35:17Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Sonata for Piano 4 Hands in C Major, K. 19d: II. Menuetto
track: Sonata for Piano 4 Hands in F Major, K. 497: II. Andante
track: Sonata for Piano 4 Hands in C Major, K. 19d: III. Rondo. Allegretto
track: Sonata for Piano 4 Hands in F Major, K. 497: III. Allegro
track: Sonata for Piano 4 Hands in D Major, K. 381: I. Allegro
track: Sonata for Piano 4 Hands in G Major, K. 357: I. Allegro
track: Sonata for Piano 4 Hands in D Major, K. 381: II. Andante
track: Sonata for Piano 4 Hands in G Major, K. 357: II. Andante
track: Sonata for Piano 4 Hands in D Major, K. 381: III. Allegro molto
track: Andante with 5 Variations for Piano 4 Hands, K. 501
track: Sonata for Piano 4 Hands in B-Flat Major, K. 358: I. Allegro
track: Sonata for Piano 4 Hands in C Major, K. 521: I. Allegro
track: Sonata for Piano 4 Hands in B-Flat Major, K. 358: II. Adagio
track: Sonata for Piano 4 Hands in C Major, K. 521: II. Andante
track: Sonata for Piano 4 Hands in B-Flat Major, K. 358: III. Molto presto
track: Sonata for Piano 4 Hands in C Major, K. 521: III. Allegretto
track: Sonata for 2 Pianos in D Major, K. 448: I. Allegro con spirito
track: Sonata for 2 Pianos in D Major, K. 448: II. Andante
track: Sonata for 2 Pianos in D Major, K. 448: III. Allegro molto
track: Fugue for 2 Pianos in C Minor, K. 426

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date published: 2026-07-02T03:55:08Z

Sonata for Piano 4 Hands in C Major, K. 19d: II. Menuetto
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Sonata for Piano 4 Hands in F Major, K. 497: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T06:39:12Z
audio: Sonata for Piano 4 Hands in F Major, K. 497: II. Andante
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Sonata for Piano 4 Hands in C Major, K. 19d: III. Rondo. Allegretto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T15:38:35Z
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Sonata for Piano 4 Hands in F Major, K. 497: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Sonata for Piano 4 Hands in D Major, K. 381: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
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Sonata for Piano 4 Hands in G Major, K. 357: I. Allegro
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  value: 2026-07-30T10:08:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x26192094a9b4c7525887369168143c3b3f46e06307d74d8e0185a201fbf82edb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960247
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960247
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507619602
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T10:42:33Z
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 0x26192094a9b4c7525887369168143c3b3f46e06307d74d8e0185a201fbf82edb. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/NLA507619602.
  date published: 2026-07-30T10:42:33Z
audio: Sonata for Piano 4 Hands in G Major, K. 357: I. Allegro
  type: AudioObject
  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
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.493
  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
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    value: 0.934
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.493
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.819
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
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Sonata for Piano 4 Hands in D Major, K. 381: II. Andante
type: MusicRecording
duration: PT6M13S
duration ms: 373000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507610606
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T18:23:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7646e8a5dabf61237e92c3968e16429492a1e8f721e6216791b79621263e2bd9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
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/NLA507610606
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 0x7646e8a5dabf61237e92c3968e16429492a1e8f721e6216791b79621263e2bd9. 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/NLA507610606.
  date published: 2026-06-13T13:32:09Z
audio: Sonata for Piano 4 Hands in D Major, K. 381: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 124.791
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.021
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.247
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.357
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
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    value: Major

Sonata for Piano 4 Hands in G Major, K. 357: II. Andante
type: MusicRecording
duration: PT6M20S
duration ms: 380000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507619603
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:45:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e974148cde2c5d292b247320daba2e0754a5e9686555138e5746c322bae5e39
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/NLA507619603
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 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 0x8e974148cde2c5d292b247320daba2e0754a5e9686555138e5746c322bae5e39. 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/NLA507619603.
  date published: 2026-07-08T03:20:19Z
audio: Sonata for Piano 4 Hands in G Major, K. 357: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 101.55
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.406
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.326
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.359
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sonata for Piano 4 Hands in D Major, K. 381: III. Allegro molto
type: MusicRecording
duration: PT3M12S
duration ms: 192000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507610607
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T10:11:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83d13859310baef1d8c77a7b396d3e66fa89f5ce924217da6af2fd3395860c3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960099
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960099
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507610607
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:30:20Z
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 0x83d13859310baef1d8c77a7b396d3e66fa89f5ce924217da6af2fd3395860c3c. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/NLA507610607.
  date published: 2026-07-29T11:30:20Z
audio: Sonata for Piano 4 Hands in D Major, K. 381: III. Allegro molto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 76.152
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.513
  additional property: Energy
    type: PropertyValue
    value: 0.102
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.935
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.46
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.995
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Andante with 5 Variations for Piano 4 Hands, K. 501
type: MusicRecording
duration: PT7M53S
duration ms: 473000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507619601
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T00:11:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x516b86ae3bc85a1a9297bce182960ba8deaeb8cbf0d81c5e45f6824f3ca8e77b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960175
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960175
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507619601
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:16:15Z
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 0x516b86ae3bc85a1a9297bce182960ba8deaeb8cbf0d81c5e45f6824f3ca8e77b. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/NLA507619601.
  date published: 2026-07-30T00:16:15Z
audio: Andante with 5 Variations for Piano 4 Hands, K. 501
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.181
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.458
  additional property: Energy
    type: PropertyValue
    value: 0.07
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.927
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.373
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.671
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sonata for Piano 4 Hands in B-Flat Major, K. 358: I. Allegro
type: MusicRecording
duration: PT3M57S
duration ms: 237000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507619604
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T10:57:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c921dbb358a855a0970fb6a28364b64c0c71a6a2e971c8f5776a1535d0c5ece
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960095
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960095
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507619604
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:07:37Z
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 0x0c921dbb358a855a0970fb6a28364b64c0c71a6a2e971c8f5776a1535d0c5ece. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NLA507619604.
  date published: 2026-07-29T11:07:37Z
audio: Sonata for Piano 4 Hands in B-Flat Major, K. 358: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 161.356
  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: 0.428
  additional property: Energy
    type: PropertyValue
    value: 0.107
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.92
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.655
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.204
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sonata for Piano 4 Hands in C Major, K. 521: I. Allegro
type: MusicRecording
duration: PT9M11S
duration ms: 551000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507619610
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T18:57:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec8ad881bd2b64baa99ff358a56211487b3f1644e6e8285d839fd618520ab005
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
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/NLA507619610
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 0xec8ad881bd2b64baa99ff358a56211487b3f1644e6e8285d839fd618520ab005. 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/NLA507619610.
  date published: 2026-06-13T13:32:09Z
audio: Sonata for Piano 4 Hands in C Major, K. 521: I. Allegro
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Sonata for Piano 4 Hands in B-Flat Major, K. 358: II. Adagio
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duration: PT5M27S
duration ms: 327000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
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  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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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: 2026-06-13T12:53:06Z
audio: Sonata for Piano 4 Hands in B-Flat Major, K. 358: II. Adagio
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Sonata for Piano 4 Hands in C Major, K. 521: II. Andante
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duration: PT7M31S
duration ms: 451000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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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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  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: 2026-06-13T12:53:06Z
audio: Sonata for Piano 4 Hands in C Major, K. 521: II. Andante
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Sonata for Piano 4 Hands in B-Flat Major, K. 358: III. Molto presto
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duration: PT3M4S
duration ms: 184000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507619606
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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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  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: 2026-07-29T22:48:59Z
audio: Sonata for Piano 4 Hands in B-Flat Major, K. 358: III. Molto presto
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Sonata for Piano 4 Hands in C Major, K. 521: III. Allegretto
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duration: PT8M1S
duration ms: 481000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507619612
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additional property: OTSBitcoinBlock
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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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  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: 2026-07-30T10:42:33Z
audio: Sonata for Piano 4 Hands in C Major, K. 521: III. Allegretto
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Sonata for 2 Pianos in D Major, K. 448: I. Allegro con spirito
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duration: PT8M23S
duration ms: 503000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507610601
additional property: CopyrightID
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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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  date published: 2026-06-13T12:47:07Z
audio: Sonata for 2 Pianos in D Major, K. 448: I. Allegro con spirito
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Sonata for 2 Pianos in D Major, K. 448: II. Andante
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by artist: Wolfgang Amadeus Mozart
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by artist: Ludwig Hoffmann
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genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: CopyrightRegisteredAt
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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 0x7ba9bf69cded86d8820e7d03858e75b7b9fcaf972d992ba5fc828e6b726cf93c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLA507610602.
  date published: 2026-06-13T12:47:07Z
audio: Sonata for 2 Pianos in D Major, K. 448: II. Andante
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Sonata for 2 Pianos in D Major, K. 448: III. Allegro molto
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by artist: Wolfgang Amadeus Mozart
by artist: Ingrid Haebler
by artist: Ludwig Hoffmann
in album: Mozart: The Piano Duos & Duets (Complete Mozart Edition)
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
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  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0f69216db2c1dd63a59d01e52ca19e1ee925bf9aea8afd12a818992f005abec3
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/GBF076012104
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 0x0f69216db2c1dd63a59d01e52ca19e1ee925bf9aea8afd12a818992f005abec3. 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/GBF076012104.
  date published: 2026-07-02T03:55:08Z
audio: 6 German Dances, K. 509: No. 4 in F Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.76
  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: 0.419
  additional property: Energy
    type: PropertyValue
    value: 0.072
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.935
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.909
  additional property: Liveness
    type: PropertyValue
    value: 0.261
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.423
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.054
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

6 German Dances, K. 509: No. 5 in A Major
type: MusicRecording
duration: PT1M57S
duration ms: 117600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: London Symphony Orchestra
by artist: Peter Maag
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF076012105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T15:52:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d0c7994e10aeaaac6ecd40e6804ef519a0acc072edd98c1361b38b73099dfc9
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/GBF076012105
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 0x3d0c7994e10aeaaac6ecd40e6804ef519a0acc072edd98c1361b38b73099dfc9. 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/GBF076012105.
  date published: 2026-07-02T03:55:08Z
audio: 6 German Dances, K. 509: No. 5 in A Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.308
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.375
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.825
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.297
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.766
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

6 German Dances, K. 509: No. 6 in C Major
type: MusicRecording
duration: PT3M26S
duration ms: 206026
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: London Symphony Orchestra
by artist: Peter Maag
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF076012106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T08:03:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee5c7b6a6b70c13d6f8becda07de83a5bf1fd3f4e72f9d72b8d3783ab275433c
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/GBF076012106
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 0xee5c7b6a6b70c13d6f8becda07de83a5bf1fd3f4e72f9d72b8d3783ab275433c. 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/GBF076012106.
  date published: 2026-07-02T03:30:09Z
audio: 6 German Dances, K. 509: No. 6 in C Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.218
  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: 0.52
  additional property: Energy
    type: PropertyValue
    value: 0.407
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.927
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.911
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.68
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.831
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

6 German Dances, K. 600: No. 5 in G Major
type: MusicRecording
duration: PT2M18S
duration ms: 138986
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: London Symphony Orchestra
by artist: Peter Maag
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF075912041
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T04:06:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9bc0b6b26542749d9b9603bdb450f76a1b3279c632a028f4080d3354d0780f22
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/GBF075912041
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 0x9bc0b6b26542749d9b9603bdb450f76a1b3279c632a028f4080d3354d0780f22. 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/GBF075912041.
  date published: 2026-07-02T03:55:08Z
audio: 6 German Dances, K. 600: No. 5 in G Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.321
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.479
  additional property: Energy
    type: PropertyValue
    value: 0.074
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.324
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.463
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.439
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

4 German Dances, K. 602: No. 3 in C Major
type: MusicRecording
duration: PT2M28S
duration ms: 148866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: London Symphony Orchestra
by artist: Peter Maag
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF075912042
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T16:06:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37bd1068ecb2b440055328d81b4a2a7fab8d4862d0096063ad406489e70bf274
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/GBF075912042
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 0x37bd1068ecb2b440055328d81b4a2a7fab8d4862d0096063ad406489e70bf274. 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/GBF075912042.
  date published: 2026-07-02T03:55:08Z
audio: 4 German Dances, K. 602: No. 3 in C Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.483
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.479
  additional property: Energy
    type: PropertyValue
    value: 0.178
  additional property: Speechiness
    type: PropertyValue
    value: 0.025
  additional property: Acousticness
    type: PropertyValue
    value: 0.902
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.072
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.644
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.069
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

3 German Dances, K. 605: No. 2 in G Major
type: MusicRecording
duration: PT2M29S
duration ms: 149000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: London Symphony Orchestra
by artist: Peter Maag
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF075912043
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:23:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x137ab25af4669d4228bc6dc4dcae47d566f87e13beff4c6e75debff07414207e
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/GBF075912043
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 0x137ab25af4669d4228bc6dc4dcae47d566f87e13beff4c6e75debff07414207e. 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/GBF075912043.
  date published: 2026-07-02T03:55:08Z
audio: 3 German Dances, K. 605: No. 2 in G Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.085
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.415
  additional property: Energy
    type: PropertyValue
    value: 0.205
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.833
  additional property: Liveness
    type: PropertyValue
    value: 0.319
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.51
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.538
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

6 German Dances, K. 600: No. 1 in C Major
type: MusicRecording
duration: PT2M14S
duration ms: 134453
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: London Symphony Orchestra
by artist: Peter Maag
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF075912044
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T02:41:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30c2e3ae3cc500fa8584f316a83c979f1428de34aed72c141772946ab431555a
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/GBF075912044
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 0x30c2e3ae3cc500fa8584f316a83c979f1428de34aed72c141772946ab431555a. 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/GBF075912044.
  date published: 2026-07-02T03:55:08Z
audio: 6 German Dances, K. 600: No. 1 in C Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.74
  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
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6 German Dances, K. 600: No. 2 in F Major
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duration: PT1M58S
duration ms: 118280
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: London Symphony Orchestra
by artist: Peter Maag
in album: "LSO Plays" - Mozart, Beethoven & Chopin
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  date published: 2025-03-06
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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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: 2026-07-02T03:55:08Z
audio: 6 German Dances, K. 600: No. 2 in F Major
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3 German Dances, K. 605: No. 3 in C Major
type: MusicRecording
duration: PT3M8S
duration ms: 188146
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: London Symphony Orchestra
by artist: Peter Maag
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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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: 2026-07-02T03:55:08Z
audio: 3 German Dances, K. 605: No. 3 in C Major
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The Creatures of Prometheus, Op. 43: Overtura. Adagio - Allegro molto con brio
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duration: PT4M58S
duration ms: 298407
explicit: false
by artist: Ludwig van Beethoven
by artist: London Symphony Orchestra
by artist: Sir Colin Davis
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
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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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  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 0xebaeef8334561fe3eb6e480333ac4d180767ecf03f9fc38dec095729db50202b. 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/NLA506200432.
  date published: 2026-07-02T03:55:08Z
audio: The Creatures of Prometheus, Op. 43: Overtura. Adagio - Allegro molto con brio
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Overture "Fidelio", Op. 72c
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duration: PT6M29S
duration ms: 389333
explicit: false
by artist: Ludwig van Beethoven
by artist: London Symphony Orchestra
by artist: Pierre Monteux
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBF076012160
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: 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 0x7219bc5b07dd32c4010b7625d06050960ef45a8bac5c6dc912782d28ff56958a. 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/GBF076012160.
  date published: 2026-07-02T03:55:08Z
audio: Overture "Fidelio", Op. 72c
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  additional property: Tempo (BPM)
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Symphony No. 2 in D, Op. 36: 1. Adagio molto - Allegro con brio
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duration: PT9M59S
duration ms: 599986
explicit: false
by artist: Ludwig van Beethoven
by artist: London Symphony Orchestra
by artist: Pierre Monteux
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-piano
genre: chamber-music
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e1d0a76fe9516a8aa62ba5d8e5e4aeb7d60443fd6a47a3644facd33f703afa. 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/GBF076011061.
  date published: 2026-07-02T03:55:08Z
audio: Symphony No. 2 in D, Op. 36: 1. Adagio molto - Allegro con brio
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Symphony No. 2 in D, Op. 36: 2. Larghetto
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duration: PT11M1S
duration ms: 661066
explicit: false
by artist: Ludwig van Beethoven
by artist: London Symphony Orchestra
by artist: Pierre Monteux
in album: "LSO Plays" - Mozart, Beethoven & Chopin
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genre: classical
genre: classical-piano
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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 0x35002b9d7318f76a9a330110d0f2f81183e7c8554c51fdfab2cb9a06f817bc7b. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/GBF076011062.
  date published: 2026-07-22T13:20:46Z
audio: Symphony No. 2 in D, Op. 36: 2. Larghetto
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Symphony No. 2 in D, Op. 36: 3. Scherzo (Allegro)
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T01:25:57Z
audio: Symphony No. 2 in D, Op. 36: 3. Scherzo (Allegro)
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Symphony No. 2 in D, Op. 36: 4. Allegro molto
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duration ms: 398266
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by artist: Ludwig van Beethoven
by artist: London Symphony Orchestra
by artist: Pierre Monteux
in album: "LSO Plays" - Mozart, Beethoven & Chopin
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  date published: 2025-03-06
genre: classical
genre: classical-piano
genre: chamber-music
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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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  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: 2026-07-22T08:41:42Z
audio: Symphony No. 2 in D, Op. 36: 4. Allegro molto
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Symphony No. 4 in B flat, Op. 60: 1. Adagio - Allegro vivace
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duration: PT12M43S
duration ms: 763160
explicit: false
by artist: Ludwig van Beethoven
by artist: London Symphony Orchestra
by artist: Pierre Monteux
in album: "LSO Plays" - Mozart, Beethoven & Chopin
  type: MusicAlbum
  date published: 2025-03-06
genre: classical
genre: classical-piano
genre: chamber-music
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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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  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: 2026-07-29T11:07:37Z
audio: Symphony No. 4 in B flat, Op. 60: 1. Adagio - Allegro vivace
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Symphony No. 4 in B flat, Op. 60: 2. Adagio
type: MusicRecording
duration: PT9M22S
duration ms: 562506
explicit: false
by artist: Ludwig van Beethoven
by artist: London Symphony Orchestra
by artist: Pierre Monteux
in album: "LSO Plays" - Mozart, Beethoven & Chopin
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  date published: 2025-03-06
genre: classical
genre: classical-piano
genre: chamber-music
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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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  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: 2026-07-07T13:25:45Z
audio: Symphony No. 4 in B flat, Op. 60: 2. Adagio
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Symphony No. 4 in B flat, Op. 60: 3. Allegro vivace
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duration: PT5M48S
duration ms: 348560
explicit: false
by artist: Ludwig van Beethoven
by artist: London Symphony Orchestra
by artist: Pierre Monteux
in album: "LSO Plays" - Mozart, Beethoven & Chopin
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genre: classical
genre: classical-piano
genre: chamber-music
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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: 2026-07-02T03:55:08Z
audio: Symphony No. 4 in B flat, Op. 60: 3. Allegro vivace
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Symphony No. 4 in B flat, Op. 60: 4. Allegro ma non troppo
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duration: PT6M37S
duration ms: 397773
explicit: false
by artist: Ludwig van Beethoven
by artist: London Symphony Orchestra
by artist: Pierre Monteux
in album: "LSO Plays" - Mozart, Beethoven & Chopin
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genre: classical
genre: classical-piano
genre: chamber-music
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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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  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: 2026-07-29T21:51:49Z
audio: Symphony No. 4 in B flat, Op. 60: 4. Allegro ma non troppo
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 1
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duration ms: 106626
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by artist: London Symphony Orchestra
by artist: Claudio Abbado
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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: 2026-07-29T11:30:20Z
audio: Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 1
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 2
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 3
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 4
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 5
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 6
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 7
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 8
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 9
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 10
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 11
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 12
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 13
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 14
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 15
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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: 2026-07-07T14:18:56Z
audio: Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 15
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 16
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by artist: Martha Argerich
by artist: London Symphony Orchestra
by artist: Claudio Abbado
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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: 2026-07-29T11:07:37Z
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso - Pt. 17
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by artist: Frédéric Chopin
by artist: Martha Argerich
by artist: London Symphony Orchestra
by artist: Claudio Abbado
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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: 2026-07-29T21:09:47Z
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 1
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by artist: Frédéric Chopin
by artist: Martha Argerich
by artist: London Symphony Orchestra
by artist: Claudio Abbado
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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: 2026-07-29T13:09:35Z
audio: Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 1
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 2
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by artist: Martha Argerich
by artist: London Symphony Orchestra
by artist: Claudio Abbado
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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: 2026-07-29T19:35:34Z
audio: Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 2
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 3
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by artist: Claudio Abbado
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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: 2026-07-07T18:39:05Z
audio: Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 3
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 4
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T13:09:35Z
audio: Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 4
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 5
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 6
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 7
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 8
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 9
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 10
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto - Pt. 11
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T14:28:24Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T13:32:09Z
  audio: 3. Rondo (Allegretto) Sonata For Piano Duet In C, K.19D
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Mozart: Complete Variations for Piano
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-08-01T01:44:32Z
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T22:27:44Z
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track: Sonata for 2 Pianos in D Major, K. 448: I. Allegro con spirito
track: Sonata for 2 Pianos in D Major, K. 448: II. Andante

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OpenTimestamps Proof of Existence
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date published: 2026-07-30T15:42:38Z

12 Variations on "La belle Françoise", K. 353: Theme – Variations 1-12
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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
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Sonata for 2 Pianos in D Major, K. 448: I. Allegro con spirito
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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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Sonata for 2 Pianos in D Major, K. 448: II. Andante
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by artist: Ludwig Hoffmann
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genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Sonata for 2 Pianos in D Major, K. 448: II. Andante
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Miauzart! Música Clásica Para Gatos
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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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track: Lieder ohne Worte, Op. 30: No. 6. Allegretto in F sharp minor "Venetian Gondola Song"
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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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Schubert: The Piano Sonatas
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date published: 1997-01-01
track: 6 Moments musicaux, Op. 94, D. 780: No. 3 in F Minor (Allegro moderato)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T00:26:26Z
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Te Sorprendería Lo Que Un Piano Puede Hacer
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Easy Christmas
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date published: 2005-09-30
track: Die vier Jahreszeiten: Der Winter: Allegro non molto
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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track: Peer Gynt Suite Nr. 2, op. 55: Solveigs Lied
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Mozart Piano Concertos: Nos. 1-8
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Schubert: Impromptus Op. 90 & 142
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Schubert: Fantasie, Op. 103, D. 940, Alfred Brendel vs Ingrid Haebler vs. Paul Badura-Skoda (Compare 3 Versions)
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Mozart: Piano Works for Four-Hands by Ingrid Haebler & Ludwig Hoffmann (2025 Remastered, Studio 1959)
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