Félicien David
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genre: french-opera
genre: french-romanticism
description: thumb|Woodburytype of Félicien David Félicien-César David (13 April 1810 – 29 August 1876) was a French composer. Biography Félicien David was born in Cadenet, and began to study music at the age of
popularity: 7
followers: 419
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin 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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album: Serate Musicali
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      date published: 2006-01-01
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-30T07:48:45Z
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  track: I tempi assai lontani
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T15:27:29Z
    audio: I tempi assai lontani
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album: Original 19th-Century Music for Brass
album: Vieuxtemps: Complete Works for Viola
album: Romances et chants d'oiseaux
album: David: Le désert
album: Carnaval! French Coloratura Arias
album: Naxos March 2014 New Release Sampler
album: Joan Sutherland - Complete Decca Studio Recitals
album: Traummelodien der Klassik
album: French Classical Masterpieces
album: Chefs d'oeuvre de la musique classique française
album: David: Mélodies Orientales / Les Minarets / Trois Esquisses Symphoniques
album: David: Herculanum
album: David: Mélodies
album: David: Lalla Roukh
album: Breezes From the Orient, Vol. 1
album: David, F.: Desert (Le)
album: Selma Kurz An Historical Recording
album: David: Piano Trios Nos. 2 and 3
album: David: Brises D'Orient (Les) / Les Minarets
album: David: Christophe Colomb & Musique de chambre, symphonique et sacrée (Portraits, Vol. 4)
album: Pennies from Heaven
album: Chopin und seine Zeit
album: Homage
album: Mado Robin: Ses plus grands succès
album: Tetrazzini Vol. 2
album: Duo Odyssey
album: Sunset Classics
album: Galli-Curci Vol. 2
album: Visions
album: Jenkins, Florence Foster: Murder On the High Cs (1937-1951)
album: The Glory - (????) Of The Human Voice [Remastered]
album: The Glory ??? Of The Human Voice
album: Songs of the Nightingale
album: Gramophone 1899: The First Gramophone Recordings in Sweden
album: 100 Scary Classics
album: Florence Foster Jenkins
album: Lamartine mis en musique par ses contemporains
album: Les poètes et leurs musiciens. Alfred de Musset (Mono Version)
album: Coloratura Gems

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Original 19th-Century Music for Brass
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date published: 1991-06-01

Vieuxtemps: Complete Works for Viola
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track: Viola Sonata in B-Flat Major, Op. 60 (Unfinished): I. Allegro
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T02:19:15Z
  audio: Viola Sonata in B-Flat Major, Op. 60 (Unfinished): I. Allegro
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track: Viola Sonata in B-Flat Major, Op. 60 (Unfinished): ii. Scherzo
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-08-01T01:44:32Z
  audio: Viola Sonata in B-Flat Major, Op. 60 (Unfinished): ii. Scherzo
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track: La Nuit (arr. Henri Vieuxtemps)
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  genre: french-opera
  genre: french-romanticism
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  subject of: OpenTimestamps Proof of Existence
  audio: La Nuit (arr. Henri Vieuxtemps)
track: Etude
track: Viola Sonata in B-Flat Major, Op. 36: I. Maestoso - Allegro
track: Viola Sonata in B-Flat Major, Op. 36: II. Barcarolla: Andante con moto
track: Viola Sonata in B-Flat Major, Op. 36: III. Finale scherzando: Allegretto
track: Capriccio in C Minor, Op. Post.
track: Elegie, Op. 30
track: Souvenir d'Amérique, Variations Burlesques (Yankee Doodle), Op. 17 (arr. Frank Foerster)

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

La Nuit (arr. Henri Vieuxtemps)
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Etude
type: MusicRecording
duration: PT4M2S
duration ms: 242680
explicit: false
by artist: Henri Vieuxtemps
by artist: Timothy Ridout
by artist: Ke Ma
in album: Vieuxtemps: Complete Works for Viola
  type: MusicAlbum
  date published: 2017-02-24
isrc code: GB4ZK1700050
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:47:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4820c180032181917eaf8fca9218dde9397855a9024c6f638f790d5070867a8c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960485
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960485
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB4ZK1700050
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T00:10:46Z
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 0x4820c180032181917eaf8fca9218dde9397855a9024c6f638f790d5070867a8c. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GB4ZK1700050.
  date published: 2026-08-01T00:10:46Z
audio: Etude
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.709
  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: 0.44
  additional property: Energy
    type: PropertyValue
    value: 0.323
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.923
  additional property: Liveness
    type: PropertyValue
    value: 0.161
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.678
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.059
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Viola Sonata in B-Flat Major, Op. 36: I. Maestoso - Allegro
type: MusicRecording
duration: PT12M15S
duration ms: 735653
explicit: false
by artist: Henri Vieuxtemps
by artist: Timothy Ridout
by artist: Ke Ma
in album: Vieuxtemps: Complete Works for Viola
  type: MusicAlbum
  date published: 2017-02-24
isrc code: GB4ZK1700051
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T01:32:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9de9e416dd8d9900bcdecae10d30f975e18ca4dc8f9424c0c61f2905296fbb95
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960187
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960187
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB4ZK1700051
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:34:28Z
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 0x9de9e416dd8d9900bcdecae10d30f975e18ca4dc8f9424c0c61f2905296fbb95. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/GB4ZK1700051.
  date published: 2026-07-30T01:34:28Z
audio: Viola Sonata in B-Flat Major, Op. 36: I. Maestoso - Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.296
  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: 0.241
  additional property: Energy
    type: PropertyValue
    value: 0.106
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.652
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.064
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.767
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Viola Sonata in B-Flat Major, Op. 36: II. Barcarolla: Andante con moto
type: MusicRecording
duration: PT7M5S
duration ms: 425653
explicit: false
by artist: Henri Vieuxtemps
by artist: Timothy Ridout
by artist: Ke Ma
in album: Vieuxtemps: Complete Works for Viola
  type: MusicAlbum
  date published: 2017-02-24
isrc code: GB4ZK1700052
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T18:27:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb7c96541743d82f709dc4574b05c082b5a60402db214a433e54391057e88ab79
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB4ZK1700052
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34Z
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 0xb7c96541743d82f709dc4574b05c082b5a60402db214a433e54391057e88ab79. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GB4ZK1700052.
  date published: 2026-07-29T19:35:34Z
audio: Viola Sonata in B-Flat Major, Op. 36: II. Barcarolla: Andante con moto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.72
  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: 0.246
  additional property: Energy
    type: PropertyValue
    value: 0.043
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.564
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.079
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.324
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Viola Sonata in B-Flat Major, Op. 36: III. Finale scherzando: Allegretto
type: MusicRecording
duration: PT4M32S
duration ms: 272426
explicit: false
by artist: Henri Vieuxtemps
by artist: Timothy Ridout
by artist: Ke Ma
in album: Vieuxtemps: Complete Works for Viola
  type: MusicAlbum
  date published: 2017-02-24
isrc code: GB4ZK1700053
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:20:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x33360e61404574896340a34ea0f845a76addc60bb9bb8bd5b585c4cab7f37c54
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/GB4ZK1700053
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 0x33360e61404574896340a34ea0f845a76addc60bb9bb8bd5b585c4cab7f37c54. 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/GB4ZK1700053.
  date published: 2026-07-08T03:20:19Z
audio: Viola Sonata in B-Flat Major, Op. 36: III. Finale scherzando: Allegretto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.737
  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: 0.333
  additional property: Energy
    type: PropertyValue
    value: 0.138
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.766
  additional property: Liveness
    type: PropertyValue
    value: 0.14
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.264
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.683
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Capriccio in C Minor, Op. Post.
type: MusicRecording
duration: PT2M51S
duration ms: 171546
explicit: false
by artist: Henri Vieuxtemps
by artist: Timothy Ridout
in album: Vieuxtemps: Complete Works for Viola
  type: MusicAlbum
  date published: 2017-02-24
isrc code: GB4ZK1700054
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T00:00:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8372879eb0d03e7adec2b93fe27d16d74ea97427bce6a7803d44e0b36bbb9c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960173
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960173
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB4ZK1700054
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:11:40Z
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 0xd8372879eb0d03e7adec2b93fe27d16d74ea97427bce6a7803d44e0b36bbb9c6. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/GB4ZK1700054.
  date published: 2026-07-30T00:11:40Z
audio: Capriccio in C Minor, Op. Post.
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 85.18
  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: 0.252
  additional property: Energy
    type: PropertyValue
    value: 0.037
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.389
  additional property: Liveness
    type: PropertyValue
    value: 0.083
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.325
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.682
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Elegie, Op. 30
type: MusicRecording
duration: PT7M19S
duration ms: 439213
explicit: false
by artist: Henri Vieuxtemps
by artist: Timothy Ridout
by artist: Ke Ma
in album: Vieuxtemps: Complete Works for Viola
  type: MusicAlbum
  date published: 2017-02-24
isrc code: GB4ZK1700055
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T03:42:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x61163830a2d9cf906db44e590148e80ce1543051a7fbf324549dd3bdea9212a7
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/GB4ZK1700055
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 0x61163830a2d9cf906db44e590148e80ce1543051a7fbf324549dd3bdea9212a7. 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/GB4ZK1700055.
  date published: 2026-07-06T06:56:49Z
audio: Elegie, Op. 30
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.579
  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: 0.152
  additional property: Energy
    type: PropertyValue
    value: 0.089
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.836
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.059
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.97
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Souvenir d'Amérique, Variations Burlesques (Yankee Doodle), Op. 17 (arr. Frank Foerster)
type: MusicRecording
duration: PT5M19S
duration ms: 319320
explicit: false
by artist: Henri Vieuxtemps
by artist: Timothy Ridout
by artist: Ke Ma
in album: Vieuxtemps: Complete Works for Viola
  type: MusicAlbum
  date published: 2017-02-24
isrc code: GB4ZK1700056
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:50:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdd161a1ef8bbee3557d956e6d9f591f65771ab5d2d284c35b8ece8a1a36b8a3f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960236
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960236
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB4ZK1700056
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:37:10Z
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 0xdd161a1ef8bbee3557d956e6d9f591f65771ab5d2d284c35b8ece8a1a36b8a3f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GB4ZK1700056.
  date published: 2026-07-30T09:37:10Z
audio: Souvenir d'Amérique, Variations Burlesques (Yankee Doodle), Op. 17 (arr. Frank Foerster)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 152.484
  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: 0.377
  additional property: Energy
    type: PropertyValue
    value: 0.215
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.404
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.44
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.346
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Romances et chants d'oiseaux
type: MusicAlbum
date published: 1994-01-01

David: Le désert
type: MusicAlbum
date published: 2015-01-26
track: Le Désert, L'entrée au désert: I. Ouverture
  type: MusicRecording
  duration: PT8M30S
  duration ms: 510760
  explicit: false
  by artist: Félicien David
  by artist: Orchestre de chambre de Paris
  by artist: Accentus
  by artist: Laurence Equilbey
  in album: David: Le désert
    type: MusicAlbum
    date published: 2015-01-26
  genre: french-opera
  genre: french-romanticism
  isrc code: FRZ131424010
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T07:47:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb566b7fb05f6441560f3c6e10ce0b0edadc16950c04f9a41185f47018ece2307
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960368
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960368
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424010
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T08:26:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb566b7fb05f6441560f3c6e10ce0b0edadc16950c04f9a41185f47018ece2307. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424010.
    date published: 2026-07-31T08:26:41Z
  audio: Le Désert, L'entrée au désert: I. Ouverture
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.866
    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: 0.142
    additional property: Energy
      type: PropertyValue
      value: 0.046
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.981
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.833
    additional property: Liveness
      type: PropertyValue
      value: 0.07
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.891
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Le Désert, L'entrée au désert: II. Marche de la caravane
  type: MusicRecording
  duration: PT4M24S
  duration ms: 264853
  explicit: false
  by artist: Félicien David
  by artist: Orchestre de chambre de Paris
  by artist: Accentus
  by artist: Laurence Equilbey
  in album: David: Le désert
    type: MusicAlbum
    date published: 2015-01-26
  genre: french-opera
  genre: french-romanticism
  isrc code: FRZ131424020
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T01:37:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfe4469198c6ead146a160e111c42b67625e55825fafeff4ebaa10e8b27e5c256
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960334
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960334
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424020
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T02:19:15Z
  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 0xfe4469198c6ead146a160e111c42b67625e55825fafeff4ebaa10e8b27e5c256. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRZ131424020.
    date published: 2026-07-31T02:19:15Z
  audio: Le Désert, L'entrée au désert: II. Marche de la caravane
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.566
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.445
    additional property: Energy
      type: PropertyValue
      value: 0.031
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.964
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.422
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.122
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.469
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Le Désert, L'entrée au désert: III. La tempête au désert
  type: MusicRecording
  duration: PT3M46S
  duration ms: 226786
  explicit: false
  by artist: Félicien David
  by artist: Orchestre de chambre de Paris
  by artist: Accentus
  by artist: Laurence Equilbey
  in album: David: Le désert
    type: MusicAlbum
    date published: 2015-01-26
  genre: french-opera
  genre: french-romanticism
  isrc code: FRZ131424030
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Le Désert, L'entrée au désert: III. La tempête au désert
track: Le Désert, Nuit: I. Hymne à la nuit
track: Le Désert, Nuit: II. Fantaisie arabe - Danse des almé
track: Le Désert, Nuit: IV. La rêverie du soir
track: Le Désert, Lever du soleil: I. Le lever du soleil
track: Le Désert, Lever du soleil: II. Chant du muezzin
track: Le Désert, Lever du soleil: III. Le départ de la caravane
track: Le Désert, Lever du soleil: IV. Chant du désert

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T19:03:58+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x6ffa127616daef5970d118d6db744d77a210d748640544dd3b76286c3e86b0de

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957124

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424030

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

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffa127616daef5970d118d6db744d77a210d748640544dd3b76286c3e86b0de. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424030.
date published: 2026-07-08T03:53:27Z

Le Désert, L'entrée au désert: III. La tempête au désert
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 96.351
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: 0.284
additional property: Energy
  type: PropertyValue
  value: 0.3
additional property: Speechiness
  type: PropertyValue
  value: 0.049
additional property: Acousticness
  type: PropertyValue
  value: 0.98
additional property: Instrumentalness
  type: PropertyValue
  value: 0.813
additional property: Liveness
  type: PropertyValue
  value: 0.146
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.04
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.994
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Le Désert, Nuit: I. Hymne à la nuit
type: MusicRecording
duration: PT6M57S
duration ms: 417480
explicit: false
by artist: Félicien David
by artist: Orchestre de chambre de Paris
by artist: Laurence Equilbey
by artist: Cyrille Dubois
in album: David: Le désert
  type: MusicAlbum
  date published: 2015-01-26
genre: french-opera
genre: french-romanticism
isrc code: FRZ131424040
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:50:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x627556d5a235fd2c26e62295b99b933399ac0e7d862fe611a1ebc32c175eda00
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424040
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0x627556d5a235fd2c26e62295b99b933399ac0e7d862fe611a1ebc32c175eda00. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRZ131424040.
  date published: 2026-07-31T17:29:52Z
audio: Le Désert, Nuit: I. Hymne à la nuit
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 91.822
  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: 0.167
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.238
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.049
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.994
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Désert, Nuit: II. Fantaisie arabe - Danse des almé
type: MusicRecording
duration: PT3M41S
duration ms: 221213
explicit: false
by artist: Félicien David
by artist: Orchestre de chambre de Paris
by artist: Laurence Equilbey
in album: David: Le désert
  type: MusicAlbum
  date published: 2015-01-26
genre: french-opera
genre: french-romanticism
isrc code: FRZ131424050
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T01:06:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73c062d98bf104ad2b814820df358a98d60b234658c0a7eef9c260e28a8f7c28
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960494
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960494
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424050
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T01:44:32Z
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 0x73c062d98bf104ad2b814820df358a98d60b234658c0a7eef9c260e28a8f7c28. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRZ131424050.
  date published: 2026-08-01T01:44:32Z
audio: Le Désert, Nuit: II. Fantaisie arabe - Danse des almé
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.551
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.4
  additional property: Energy
    type: PropertyValue
    value: 0.06
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.934
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.475
  additional property: Liveness
    type: PropertyValue
    value: 0.425
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.21
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.083
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Le Désert, Nuit: IV. La rêverie du soir
type: MusicRecording
duration: PT3M31S
duration ms: 211533
explicit: false
by artist: Félicien David
by artist: Orchestre de chambre de Paris
by artist: Accentus
by artist: Laurence Equilbey
by artist: Cyrille Dubois
in album: David: Le désert
  type: MusicAlbum
  date published: 2015-01-26
genre: french-opera
genre: french-romanticism
isrc code: FRZ131424070
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T00:27:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36efe783ce63e3e53b13e83338a6552aae5ed16439da39663f42e5de17fb7918
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960489
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960489
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424070
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T00:40:43Z
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 0x36efe783ce63e3e53b13e83338a6552aae5ed16439da39663f42e5de17fb7918. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FRZ131424070.
  date published: 2026-08-01T00:40:43Z
audio: Le Désert, Nuit: IV. La rêverie du soir
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.916
  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: 0.265
  additional property: Energy
    type: PropertyValue
    value: 0.04
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.012
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.09
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.418
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Désert, Lever du soleil: I. Le lever du soleil
type: MusicRecording
duration: PT2M39S
duration ms: 159146
explicit: false
by artist: Félicien David
by artist: Orchestre de chambre de Paris
by artist: Laurence Equilbey
in album: David: Le désert
  type: MusicAlbum
  date published: 2015-01-26
genre: french-opera
genre: french-romanticism
isrc code: FRZ131424080
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:09:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x96f89f50e942454970de374e1aa8f70dffea79d8d8036f81b990a3133fcba6c9
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/FRZ131424080
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 0x96f89f50e942454970de374e1aa8f70dffea79d8d8036f81b990a3133fcba6c9. 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/FRZ131424080.
  date published: 2026-07-08T03:20:19Z
audio: Le Désert, Lever du soleil: I. Le lever du soleil
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 50
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0
  additional property: Energy
    type: PropertyValue
    value: 0.044
  additional property: Speechiness
    type: PropertyValue
    value: 0
  additional property: Acousticness
    type: PropertyValue
    value: 0.895
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.259
  additional property: Liveness
    type: PropertyValue
    value: 0.336
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.362
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Désert, Lever du soleil: II. Chant du muezzin
type: MusicRecording
duration: PT2M39S
duration ms: 159280
explicit: false
by artist: Félicien David
by artist: Orchestre de chambre de Paris
by artist: Laurence Equilbey
by artist: Zachary Wilder
in album: David: Le désert
  type: MusicAlbum
  date published: 2015-01-26
genre: french-opera
genre: french-romanticism
isrc code: FRZ131424090
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T04:52:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd6375483cf03a75f4c54f12b0790f73eb1d0b0df77c751d572a9a3ac6b9d3d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960348
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960348
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424090
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02Z
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 0xbd6375483cf03a75f4c54f12b0790f73eb1d0b0df77c751d572a9a3ac6b9d3d1. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FRZ131424090.
  date published: 2026-07-31T05:17:02Z
audio: Le Désert, Lever du soleil: II. Chant du muezzin
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.807
  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: 0.137
  additional property: Energy
    type: PropertyValue
    value: 0.028
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.326
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.134
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.458
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Désert, Lever du soleil: III. Le départ de la caravane
type: MusicRecording
duration: PT2M53S
duration ms: 173293
explicit: false
by artist: Félicien David
by artist: Orchestre de chambre de Paris
by artist: Accentus
by artist: Laurence Equilbey
in album: David: Le désert
  type: MusicAlbum
  date published: 2015-01-26
genre: french-opera
genre: french-romanticism
isrc code: FRZ131424100
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:57:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef87aacd1a09b56b3d58063dd850c4463fab7eccd761f5d86ba018cfc95e7b2a
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/FRZ131424100
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 0xef87aacd1a09b56b3d58063dd850c4463fab7eccd761f5d86ba018cfc95e7b2a. 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/FRZ131424100.
  date published: 2026-07-08T03:20:19Z
audio: Le Désert, Lever du soleil: III. Le départ de la caravane
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.869
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.515
  additional property: Energy
    type: PropertyValue
    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.967
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.102
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.109
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.54
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Le Désert, Lever du soleil: IV. Chant du désert
type: MusicRecording
duration: PT4M17S
duration ms: 257320
explicit: false
by artist: Félicien David
by artist: Orchestre de chambre de Paris
by artist: Accentus
by artist: Laurence Equilbey
in album: David: Le désert
  type: MusicAlbum
  date published: 2015-01-26
genre: french-opera
genre: french-romanticism
isrc code: FRZ131424110
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:21:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x38fd7a8579a01d2efe2bd0d9aadbfa6ac62855ed9767778a777f58882b63d919
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424110
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fd7a8579a01d2efe2bd0d9aadbfa6ac62855ed9767778a777f58882b63d919. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ131424110.
  date published: 2026-07-31T12:24:41Z
audio: Le Désert, Lever du soleil: IV. Chant du désert
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.38
  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: 0.255
  additional property: Energy
    type: PropertyValue
    value: 0.064
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.81
  additional property: Liveness
    type: PropertyValue
    value: 0.068
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.053
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.273
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Carnaval! French Coloratura Arias
type: MusicAlbum
date published: 1994-01-01
track: Un mari à la porte: Valse Tyrolienne
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224160
  explicit: false
  by artist: Jacques Offenbach
  by artist: Sumi Jo
  by artist: English Chamber Orchestra
  by artist: Richard Bonynge
  in album: Carnaval! French Coloratura Arias
    type: MusicAlbum
    date published: 1994-01-01
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
  genre: operetta
  isrc code: GBF079340301
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T10:08:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x166aab99f77b95076897de6225fafe5b638894a554ff1ef0f0c56bbe0aa27461
  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/GBF079340301
  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 0x166aab99f77b95076897de6225fafe5b638894a554ff1ef0f0c56bbe0aa27461. 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/GBF079340301.
    date published: 2026-07-02T03:55:08Z
  audio: Un mari à la porte: Valse Tyrolienne
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 121.063
    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: 0.431
    additional property: Energy
      type: PropertyValue
      value: 0.144
    additional property: Speechiness
      type: PropertyValue
      value: 0.084
    additional property: Acousticness
      type: PropertyValue
      value: 0.947
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.146
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.36
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.989
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: La perle du Brésil: Couplets du Mysoli
  type: MusicRecording
  duration: PT7M56S
  duration ms: 476666
  explicit: false
  by artist: Félicien David
  by artist: Sumi Jo
  by artist: William Bennett
  by artist: English Chamber Orchestra
  by artist: Richard Bonynge
  in album: Carnaval! French Coloratura Arias
    type: MusicAlbum
    date published: 1994-01-01
  genre: french-opera
  genre: french-romanticism
  isrc code: GBF079340303
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T17:22:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xaf7848744782db3db85628ce19de6d63f6fc0552922966586f8c491525649bef
  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/GBF079340303
  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 0xaf7848744782db3db85628ce19de6d63f6fc0552922966586f8c491525649bef. 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/GBF079340303.
    date published: 2026-07-08T03:20:19Z
  audio: La perle du Brésil: Couplets du Mysoli
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.466
    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: 0.339
    additional property: Energy
      type: PropertyValue
      value: 0.024
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.975
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.137
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.113
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.466
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: L'Amant jaloux: Je romps la chaîne qui m'engage
  type: MusicRecording
  duration: PT5M25S
  duration ms: 325666
  explicit: false
  by artist: André-Ernest-Modeste Grétry
  by artist: Sumi Jo
  by artist: English Chamber Orchestra
  by artist: Richard Bonynge
  in album: Carnaval! French Coloratura Arias
    type: MusicAlbum
    date published: 1994-01-01
  isrc code: GBF079340304
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: L'Amant jaloux: Je romps la chaîne qui m'engage
track: Madame Chrysanthème: Le jour sous le soleil béni
track: La reine Topaze: Carnaval de Venise

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-31T10:53:41+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xb4d991ff79b5d417a4631937c7e00d2dbd782403fbaaf5b3df943c3b16425fd0

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960403

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960403

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079340304

OTSTimestamp
type: PropertyValue
value: 2026-07-31T13:04:34Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d991ff79b5d417a4631937c7e00d2dbd782403fbaaf5b3df943c3b16425fd0. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBF079340304.
date published: 2026-07-31T13:04:34Z

L'Amant jaloux: Je romps la chaîne qui m'engage
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 133.777
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
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additional property: Time Signature
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Madame Chrysanthème: Le jour sous le soleil béni
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T22:27:30Z
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La reine Topaze: Carnaval de Venise
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by artist: Sumi Jo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: La reine Topaze: Carnaval de Venise
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Naxos March 2014 New Release Sampler
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Joan Sutherland - Complete Decca Studio Recitals
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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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Traummelodien der Klassik
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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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French Classical Masterpieces
type: MusicAlbum
date published: 2024-05-17

Chefs d'oeuvre de la musique classique française
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date published: 2024-05-17

David: Mélodies Orientales / Les Minarets / Trois Esquisses Symphoniques
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date published: 2023-04-28

David: Herculanum
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David: Mélodies
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David: Lalla Roukh
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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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Breezes From the Orient, Vol. 1
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David, F.: Desert (Le)
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Selma Kurz An Historical Recording
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David: Piano Trios Nos. 2 and 3
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David: Brises D'Orient (Les) / Les Minarets
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  subject of: OpenTimestamps Proof of Existence
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David: Christophe Colomb & Musique de chambre, symphonique et sacrée (Portraits, Vol. 4)
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date published: 2017-08-25

Pennies from Heaven
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    value: 2026-07-30T00:04:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0aff8a43490057e8cbc0e6f8f3805a2788cf440f6f3f3d88a90d086cafd4f4d6
  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/DEE219778603
  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 0x0aff8a43490057e8cbc0e6f8f3805a2788cf440f6f3f3d88a90d086cafd4f4d6. 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/DEE219778603.
    date published: 2026-07-30T00:16:15Z
  audio: Pennies from Heaven (Arr. For String Quartet by Bill Thorp)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.845
    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: 0.336
    additional property: Energy
      type: PropertyValue
      value: 0.111
    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.912
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.78
    additional property: Liveness
      type: PropertyValue
      value: 0.125
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.264
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.052
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: String Quartet in A Major: Scherzo. Allegretto
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198280
  explicit: false
  by artist: Félicien David
  by artist: Mandelring Quartett
  in album: Pennies from Heaven
    type: MusicAlbum
    date published: 2020-11-06
  genre: french-opera
  genre: french-romanticism
  isrc code: DEE219778606
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T04:30:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeae0948b6bc068fed3e023aefa0860254c14cd094ba93665dcfbae3f0110837c
  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/DEE219778606
  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 0xeae0948b6bc068fed3e023aefa0860254c14cd094ba93665dcfbae3f0110837c. 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/DEE219778606.
    date published: 2026-07-08T03:20:19Z
  audio: String Quartet in A Major: Scherzo. Allegretto
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.152
    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: 0.391
    additional property: Energy
      type: PropertyValue
      value: 0.046
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.967
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.617
    additional property: Liveness
      type: PropertyValue
      value: 0.258
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.2
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.604
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: String Quartet in F Major, Op. 96 'American': II. Lento
  type: MusicRecording
  duration: PT6M9S
  duration ms: 369180
  explicit: false
  by artist: Antonín Dvořák
  by artist: Mandelring Quartett
  in album: Pennies from Heaven
    type: MusicAlbum
    date published: 2020-11-06
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
  isrc code: DEE219778613
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T18:35:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb038072d43db5fcf1fe4075a4144d30f2a202248e578f30689fd5875a8523005
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: String Quartet in F Major, Op. 96 'American': II. Lento
track: Sir Duke (Arr. For String Quartet by Jörg Widmoser)

OTSBitcoinBlock
type: PropertyValue
value: 960294

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960294

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE219778613

OTSTimestamp
type: PropertyValue
value: 2026-07-30T18:46:00Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb038072d43db5fcf1fe4075a4144d30f2a202248e578f30689fd5875a8523005. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEE219778613.
date published: 2026-07-30T18:46:00Z

String Quartet in F Major, Op. 96 'American': II. Lento
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 117.748
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: 0.209
additional property: Energy
  type: PropertyValue
  value: 0.092
additional property: Speechiness
  type: PropertyValue
  value: 0.05
additional property: Acousticness
  type: PropertyValue
  value: 0.942
additional property: Instrumentalness
  type: PropertyValue
  value: 0.83
additional property: Liveness
  type: PropertyValue
  value: 0.085
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.162
additional property: Loudness (dB)
  type: PropertyValue
  value: -21.866
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor

Sir Duke (Arr. For String Quartet by Jörg Widmoser)
type: MusicRecording
duration: PT2M55S
duration ms: 175380
explicit: false
by artist: Stevie Wonder
by artist: Mandelring Quartett
in album: Pennies from Heaven
  type: MusicAlbum
  date published: 2020-11-06
isrc code: DEE219778614
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T03:04:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55cddc2189f34e7f7401eed00286ddeedd165a3d0a9c12b46f8a6f7cd728b5bb
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/DEE219778614
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 0x55cddc2189f34e7f7401eed00286ddeedd165a3d0a9c12b46f8a6f7cd728b5bb. 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/DEE219778614.
  date published: 2026-06-13T13:32:09Z
audio: Sir Duke (Arr. For String Quartet by Jörg Widmoser)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.639
  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: 0.493
  additional property: Energy
    type: PropertyValue
    value: 0.207
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.857
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.633
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.695
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.579
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Chopin und seine Zeit
type: MusicAlbum
date published: 1993-01-01
track: Nocturne, Es-Dur, op. 9 Nr. 2
  type: MusicRecording
  duration: PT3M40S
  duration ms: 220200
  explicit: false
  by artist: Frédéric Chopin
  by artist: Clemens Kröger
  in album: Chopin und seine Zeit
    type: MusicAlbum
    date published: 1993-01-01
  genre: classical
  genre: early-romantic-era
  genre: polish-classical
  isrc code: DEC299418602
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T17:48:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x88d88944743b3c8667731258b855b73d58c8456f1fb752f8be71b4765e30cd5e
  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/DEC299418602
  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 0x88d88944743b3c8667731258b855b73d58c8456f1fb752f8be71b4765e30cd5e. 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/DEC299418602.
    date published: 2026-07-02T03:30:09Z
  audio: Nocturne, Es-Dur, op. 9 Nr. 2
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.61
    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: 0.382
    additional property: Energy
      type: PropertyValue
      value: 0.022
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.991
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.876
    additional property: Liveness
      type: PropertyValue
      value: 0.098
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.102
    additional property: Loudness (dB)
      type: PropertyValue
      value: -32.608
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Polonaise, D-Moll, op. 71 Nr. 1
  type: MusicRecording
  duration: PT5M58S
  duration ms: 358466
  explicit: false
  by artist: Frédéric Chopin
  by artist: Clemens Kröger
  in album: Chopin und seine Zeit
    type: MusicAlbum
    date published: 1993-01-01
  genre: classical
  genre: early-romantic-era
  genre: polish-classical
  isrc code: DEC299418604
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T00:28:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8d2c5c080dd804374ba9bac2b956af18f26d3467210714ee5a6ada11d594c144
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960181
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960181
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC299418604
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T00:53:20Z
  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 0x8d2c5c080dd804374ba9bac2b956af18f26d3467210714ee5a6ada11d594c144. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/DEC299418604.
    date published: 2026-07-30T00:53:20Z
  audio: Polonaise, D-Moll, op. 71 Nr. 1
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 108.756
    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: 0.29
    additional property: Energy
      type: PropertyValue
      value: 0.074
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.986
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.89
    additional property: Liveness
      type: PropertyValue
      value: 0.096
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.178
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.575
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Homage
type: MusicAlbum
date published: 2008-11-28
track: La Ronde des Lutins - Antonio Stradivari, 1715 'Marsick'
  type: MusicRecording
  duration: PT4M53S
  duration ms: 293786
  explicit: false
  by artist: Antonio Bazzini
  by artist: James Ehnes
  by artist: Eduard Laurel
  in album: Homage
    type: MusicAlbum
    date published: 2008-11-28
  isrc code: GBPCP0800401
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T07:47:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x827b9188287c78e44279044c4cf3fa71913435096c8a8dccb2cf10d7053e19d3
  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/GBPCP0800401
  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 0x827b9188287c78e44279044c4cf3fa71913435096c8a8dccb2cf10d7053e19d3. 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/GBPCP0800401.
    date published: 2026-07-08T03:20:19Z
  audio: La Ronde des Lutins - Antonio Stradivari, 1715 'Marsick'
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.072
    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: 0.644
    additional property: Energy
      type: PropertyValue
      value: 0.298
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
      type: PropertyValue
      value: 0.94
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.092
    additional property: Liveness
      type: PropertyValue
      value: 0.123
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.867
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.227
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: La Capricieuse - Pietro Guarneri Peter of Mantua, 1698 'Shapiro'
  type: MusicRecording
  duration: PT4M13S
  duration ms: 253960
  explicit: false
  by artist: Edward Elgar
  by artist: Eduard Laurel
  by artist: James Ehnes
  in album: Homage
    type: MusicAlbum
    date published: 2008-11-28
  genre: classical
  genre: late-romantic-era
  genre: british-modern-classical
  genre: victorian-britain
  isrc code: GBPCP0800408
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T17:12:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcffb75288012b1fbaaaf514f1dc4cbbe82274c739080d1bf444bea943c5b20df
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP0800408
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xcffb75288012b1fbaaaf514f1dc4cbbe82274c739080d1bf444bea943c5b20df. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP0800408.
    date published: 2026-07-08T03:53:27Z
  audio: La Capricieuse - Pietro Guarneri Peter of Mantua, 1698 'Shapiro'
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.872
    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: 0.406
    additional property: Energy
      type: PropertyValue
      value: 0.105
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.977
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.007
    additional property: Liveness
      type: PropertyValue
      value: 0.09
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.278
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.026
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Lotus Land - Giuseppe Guarneri 'del Gesù', 1737 'King Joseph'
  type: MusicRecording
  duration: PT5M3S
  duration ms: 303773
  explicit: false
  by artist: Cyril Scott
  by artist: Eduard Laurel
  by artist: James Ehnes
  in album: Homage
    type: MusicAlbum
    date published: 2008-11-28
  isrc code: GBPCP0800409
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T12:29:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9fc4a774d6ea36021a2e28e11a32c101d1e5d845a2505c94ad4b6834aa778166
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Lotus Land - Giuseppe Guarneri 'del Gesù', 1737 'King Joseph'
track: Hora staccato - Antonio Stradivari, 1713 'Baron d'Assgnies'
track: Étude-Caprice, Op.18 No.4 - Pietro Guarneri Peter of Mantua, 1698 'Shapiro'
track: Mazurka, Op.81 No.1 - Antonio Stradivari, 1719 'Duke of Alba'
track: Salut d'amour - Antonio Stradivari, 1709 'La Pucelle'
track: Melody, Op.42 No.3 - Giuseppe Guarneri 'del Gesù', 1742 'Lord Wilton'
track: Danse espagnole - Antonio Stradivari, 1715 'Baron Knoop'

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP0800409

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc4a774d6ea36021a2e28e11a32c101d1e5d845a2505c94ad4b6834aa778166. 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/GBPCP0800409.
date published: 2026-07-08T03:20:19Z

Lotus Land - Giuseppe Guarneri 'del Gesù', 1737 'King Joseph'
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 115.465
additional property: Musical Key
  type: PropertyValue
  value: 3
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.249
additional property: Energy
  type: PropertyValue
  value: 0.16
additional property: Speechiness
  type: PropertyValue
  value: 0.053
additional property: Acousticness
  type: PropertyValue
  value: 0.955
additional property: Instrumentalness
  type: PropertyValue
  value: 0.004
additional property: Liveness
  type: PropertyValue
  value: 0.082
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.036
additional property: Loudness (dB)
  type: PropertyValue
  value: -24.491
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Minor

Hora staccato - Antonio Stradivari, 1713 'Baron d'Assgnies'
type: MusicRecording
duration: PT1M59S
duration ms: 119920
explicit: false
by artist: Grigoras Dinicu
by artist: Eduard Laurel
by artist: James Ehnes
in album: Homage
  type: MusicAlbum
  date published: 2008-11-28
isrc code: GBPCP0800410
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:03:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x460bddce943f8a452513e4cd8b5c7d0050d1f59d3b5e332eaa80d7d08a773307
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/GBPCP0800410
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 0x460bddce943f8a452513e4cd8b5c7d0050d1f59d3b5e332eaa80d7d08a773307. 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/GBPCP0800410.
  date published: 2026-07-08T03:20:19Z
audio: Hora staccato - Antonio Stradivari, 1713 'Baron d'Assgnies'
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 157.847
  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: 0.561
  additional property: Energy
    type: PropertyValue
    value: 0.298
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.94
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.221
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.89
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.494
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Étude-Caprice, Op.18 No.4 - Pietro Guarneri Peter of Mantua, 1698 'Shapiro'
type: MusicRecording
duration: PT1M32S
duration ms: 92520
explicit: false
by artist: Henryk Wieniawski
by artist: Eduard Laurel
by artist: James Ehnes
in album: Homage
  type: MusicAlbum
  date published: 2008-11-28
isrc code: GBPCP0800412
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:18:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80e1158c52a1ea35f8bf5e75cbe046b483922ec0563bc4466d92111b08c5e250
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP0800412
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
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 0x80e1158c52a1ea35f8bf5e75cbe046b483922ec0563bc4466d92111b08c5e250. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBPCP0800412.
  date published: 2026-07-31T19:53:13Z
audio: Étude-Caprice, Op.18 No.4 - Pietro Guarneri Peter of Mantua, 1698 'Shapiro'
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.406
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.567
  additional property: Energy
    type: PropertyValue
    value: 0.368
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.93
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.285
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.877
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.931
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mazurka, Op.81 No.1 - Antonio Stradivari, 1719 'Duke of Alba'
type: MusicRecording
duration: PT2M37S
duration ms: 157346
explicit: false
by artist: Jean Sibelius
by artist: Eduard Laurel
by artist: James Ehnes
in album: Homage
  type: MusicAlbum
  date published: 2008-11-28
genre: classical
genre: impressionism
genre: post-romantic-era
genre: finnish-classical
isrc code: GBPCP0800413
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:32:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x60198cb19a712a4a565e28282f3037ee596d1173571c365c6fcd8f5143123c21
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/GBPCP0800413
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 0x60198cb19a712a4a565e28282f3037ee596d1173571c365c6fcd8f5143123c21. 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/GBPCP0800413.
  date published: 2026-07-08T03:20:19Z
audio: Mazurka, Op.81 No.1 - Antonio Stradivari, 1719 'Duke of Alba'
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.043
  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: 0.4
  additional property: Energy
    type: PropertyValue
    value: 0.101
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.354
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.227
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Salut d'amour - Antonio Stradivari, 1709 'La Pucelle'
type: MusicRecording
duration: PT3M0S
duration ms: 180506
explicit: false
by artist: Edward Elgar
by artist: Eduard Laurel
by artist: James Ehnes
in album: Homage
  type: MusicAlbum
  date published: 2008-11-28
genre: classical
genre: late-romantic-era
genre: british-modern-classical
genre: victorian-britain
isrc code: GBPCP0800415
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:25:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe288e07ba2f271796d7e5dad2f7a828dafedb78a6906d6f9313b23ae69135f0f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPCP0800415
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10Z
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 0xe288e07ba2f271796d7e5dad2f7a828dafedb78a6906d6f9313b23ae69135f0f. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBPCP0800415.
  date published: 2026-07-30T08:30:10Z
audio: Salut d'amour - Antonio Stradivari, 1709 'La Pucelle'
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.084
  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: 0.233
  additional property: Energy
    type: PropertyValue
    value: 0.15
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.927
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.058
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.145
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.076
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Melody, Op.42 No.3 - Giuseppe Guarneri 'del Gesù', 1742 'Lord Wilton'
type: MusicRecording
duration: PT3M37S
duration ms: 217266
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Eduard Laurel
by artist: James Ehnes
in album: Homage
  type: MusicAlbum
  date published: 2008-11-28
isrc code: GBPCP0800417
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:19:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbbdc5a71be068282bc0c103a1134913e95e6ac1d02686fa67ae1e0f52138a828
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/GBPCP0800417
additional property: OTSTimestamp
  type: PropertyValue
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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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Danse espagnole - Antonio Stradivari, 1715 'Baron Knoop'
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Danse espagnole - Antonio Stradivari, 1715 'Baron Knoop'
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Mado Robin: Ses plus grands succès
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  by artist: Mado Robin
  by artist: Orchestre de l'Association des Concerts Lamoureux
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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: 2026-07-31T15:20:15Z
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Tetrazzini Vol. 2
type: MusicAlbum
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Duo Odyssey
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T20:22:46Z
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track: Rondo
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T12:24:41Z
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Sunset Classics
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Galli-Curci Vol. 2
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Visions
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Jenkins, Florence Foster: Murder On the High Cs (1937-1951)
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The Glory - (????) Of The Human Voice [Remastered]
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  by artist: Florence Foster Jenkins
  by artist: Cosme McMoon
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T05:49:18Z
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The Glory ??? Of The Human Voice
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date published: 1992-04-14

Songs of the Nightingale
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Gramophone 1899: The First Gramophone Recordings in Sweden
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100 Scary Classics
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Florence Foster Jenkins
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Lamartine mis en musique par ses contemporains
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Les poètes et leurs musiciens. Alfred de Musset (Mono Version)
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Coloratura Gems
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