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description: Charles-Louis-Eugène Koechlin (; 27 November 186731 December 1950), commonly known as Charles Koechlin, was a French composer, teacher and musicologist. Among his better known works is Les Heures pers
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album: Koechlin: Orchestral Works
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  date published: 2017-10-13
album: Koechlin: Chamber Music
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album: Charles Koechlin: 12 Petites pièces pour le piano, Op. 61d
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  date published: 2024-07-19
album: Charles Koechlin: Dix petits pièces faciles, Op. 61c & Variante plus facile de I. L'enfant bien sage
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album: Deux_parties._Quatre_notes_contre_une._Majeurs
album: Deux_parties._Deux_notes_contre_une._Mineurs
album: Deux_parties._Note_contre_note._Majeurs
album: Koechlin: The Seven Stars' Symphony, Op. 132 & Vers la voûte étoilée, Op. 129
album: Contrepoint (1926, Précis Des Règles, Music Theory for Steel Guitar)
album: シャルル・ケクラン: ピアノ作品集
album: Koechlin: Les chants de nectaire, Series 2, Op. 199 "Dans la forêt antique"
album: Koechlin: Les chants de nectaire, Series 1, Op. 198
album: Koechlin: Chamber Music for Oboe & Other Instruments
album: Koechlin: Chœurs et mélodies
album: Koechlin: Ballade, Op. 50, 15 Préludes, Op. 209 & L'ancienne maison de campagne, Op. 124
album: Koechlin & Emmanuel: Music for Flute, Clarinet and Piano
album: Koechlin: Works for Piano
album: Koechlin: Oeuvres a cappella
album: Koechlin: Sonates
album: Koechlin: L'abbaye, Sonatines & Chorals
album: Koechlin: Melodies
album: Koechlin: Works for ensembles
album: Koechlin: Complete Music for Saxophone
album: Magicien orchestrateur
album: Koechlin: Organ Works
album: Koechlin: Les heures persanes
album: Koechlin: Piano Music, Vol. 3
album: Koechlin, C.: Piano Music, Vol. 2
album: Koechlin, C.: Offrande Musical Sur Le Nom De Bach / Les Bandar-Log
album: Koechlin, C.: Piano Music, Vol. 1
album: Koechlin: Vocal Works With Orchestra
album: Koechlin: Music for Clarinet
album: Koechlin: Les Heures Persanes, Op. 65Bis
album: Koechlin: 20 Chansons Bretonnes / Cello Sonata / Debussy: Cello Sonata
album: Les Chants de Nectaire
album: Widor & Magnard: Cello Sonatas; Koechlin: Chansons bretonnes
album: Koechlin: Le Saxophone Lumineux
album: Koechlin - Piano Music For Four Hands
album: Charles Koechlin: Les confidences d'un joueur de clarinette – Sonatines
album: Charles Koechlin : Quintette pour 2 violons, alto, violoncelle et piano opus 80
album: Douze Esquisses op. 41 No. 1
album: Impressions of Orient
album: Summer Nights
album: Refreshing Classics
album: Spring Adagios
album: Scenes of Pastoral Life

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Koechlin: The Seven Stars' Symphony, Op. 132 & Vers la voûte étoilée, Op. 129
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    date published: 2026-07-31T15:20:15Z
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  subject of: OpenTimestamps Proof of Existence
  audio: The Seven Stars' Symphony, Op. 132: III. Greta Garbo
track: The Seven Stars' Symphony, Op. 132: V. Merlène Dietrich
track: Vers la voûte étoilée, Op. 129

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-31T12:24:41Z

The Seven Stars' Symphony, Op. 132: III. Greta Garbo
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The Seven Stars' Symphony, Op. 132: V. Merlène Dietrich
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T16:07:24Z
audio: The Seven Stars' Symphony, Op. 132: V. Merlène Dietrich
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Vers la voûte étoilée, Op. 129
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T13:04:34Z
audio: Vers la voûte étoilée, Op. 129
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Contrepoint (1926, Précis Des Règles, Music Theory for Steel Guitar)
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シャルル・ケクラン: ピアノ作品集
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Koechlin: Les chants de nectaire, Series 2, Op. 199 "Dans la forêt antique"
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Koechlin: Les chants de nectaire, Series 1, Op. 198
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Koechlin: Chamber Music for Oboe & Other Instruments
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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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track: Oboe Sonata, Op. 58: II. Scherzo: Danses de Faunes, Allegro vivo
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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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  subject of: OpenTimestamps Proof of Existence
  audio: Oboe Sonata, Op. 58: III. Andante: Le soir dans la Campagne, Tres calme, presque adagio

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OTSVerifyInstructions
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date published: 2026-07-08T03:20:19Z

Oboe Sonata, Op. 58: III. Andante: Le soir dans la Campagne, Tres calme, presque adagio
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Koechlin: Chœurs et mélodies
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Koechlin: Ballade, Op. 50, 15 Préludes, Op. 209 & L'ancienne maison de campagne, Op. 124
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Koechlin & Emmanuel: Music for Flute, Clarinet and Piano
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Koechlin: Works for Piano
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Koechlin: Oeuvres a cappella
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Koechlin: Sonates
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date published: 2013-07-01

Koechlin: L'abbaye, Sonatines & Chorals
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Koechlin: Melodies
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Koechlin: Works for ensembles
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date published: 2013-03-01

Koechlin: Complete Music for Saxophone
type: MusicAlbum
date published: 2012-12-01

Magicien orchestrateur
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track: Sur les flots lointains, Op. 130
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Sur les flots lointains, Op. 130
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track: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): I. Prelude - Andante molto moderato
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  subject of: OpenTimestamps Proof of Existence
  audio: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): I. Prelude - Andante molto moderato
track: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): II. Andante
track: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): III. Andante moderato
track: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): IV. Fileuse - Allegretto moderato
track: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): V. Sicilienne - Allegretto molto moderato
track: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): VI. Chanson de Melisande - Molto lento
track: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): VII. La Mort de Melisande - Andante molto, quasi adagio

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OpenTimestamps Proof of Existence
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date published: 2026-07-02T03:55:08Z

Pelleas et Melisande, Op. 80 (arr. C. Koechlin): I. Prelude - Andante molto moderato
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Pelleas et Melisande, Op. 80 (arr. C. Koechlin): II. Andante
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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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Pelleas et Melisande, Op. 80 (arr. C. Koechlin): III. Andante moderato
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subject of: OpenTimestamps Proof of Existence
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Pelleas et Melisande, Op. 80 (arr. C. Koechlin): IV. Fileuse - Allegretto moderato
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505640bd3d2ce9599ded0199f70303a3a95acd57f86ad0e5253031b753736a0b. 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/DEA551030540.
  date published: 2026-07-02T03:30:09Z
audio: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): IV. Fileuse - Allegretto moderato
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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    value: 0.985
  additional property: Instrumentalness
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    value: 0.929
  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.088
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.586
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  additional property: Mode Name
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Pelleas et Melisande, Op. 80 (arr. C. Koechlin): V. Sicilienne - Allegretto molto moderato
type: MusicRecording
duration: PT3M38S
duration ms: 218146
explicit: false
by artist: Charles Koechlin
by artist: Gabriel Fauré
by artist: Sarah Wegener
by artist: Stuttgart Radio Symphony Orchestra
by artist: Heinz Holliger
in album: Magicien orchestrateur
  type: MusicAlbum
  date published: 2012-05-01
genre: early-modern-classical
genre: french-romanticism
genre: impressionism
genre: post-romantic-era
isrc code: DEA551030541
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T07:29:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd4aa20e1d0acbb2d56e12d665706dbac7e81d62eb9eff4b43e306b96a8917939
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/DEA551030541
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4aa20e1d0acbb2d56e12d665706dbac7e81d62eb9eff4b43e306b96a8917939. 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/DEA551030541.
  date published: 2026-07-02T03:30:09Z
audio: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): V. Sicilienne - Allegretto molto moderato
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Pelleas et Melisande, Op. 80 (arr. C. Koechlin): VI. Chanson de Melisande - Molto lento
type: MusicRecording
duration: PT4M2S
duration ms: 242760
explicit: false
by artist: Charles Koechlin
by artist: Gabriel Fauré
by artist: Sarah Wegener
by artist: Stuttgart Radio Symphony Orchestra
by artist: Heinz Holliger
in album: Magicien orchestrateur
  type: MusicAlbum
  date published: 2012-05-01
genre: early-modern-classical
genre: french-romanticism
genre: impressionism
genre: post-romantic-era
isrc code: DEA551030542
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T23:16:16+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x7fdbba9f4dd621137a10ee9b41399c910cb7115f17bcd30007238bb936daf3bb
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA551030542
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x7fdbba9f4dd621137a10ee9b41399c910cb7115f17bcd30007238bb936daf3bb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEA551030542.
  date published: 2026-07-08T03:22:41Z
audio: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): VI. Chanson de Melisande - Molto lento
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pelleas et Melisande, Op. 80 (arr. C. Koechlin): VII. La Mort de Melisande - Andante molto, quasi adagio
type: MusicRecording
duration: PT4M42S
duration ms: 282293
explicit: false
by artist: Charles Koechlin
by artist: Gabriel Fauré
by artist: Sarah Wegener
by artist: Stuttgart Radio Symphony Orchestra
by artist: Heinz Holliger
in album: Magicien orchestrateur
  type: MusicAlbum
  date published: 2012-05-01
genre: early-modern-classical
genre: french-romanticism
genre: impressionism
genre: post-romantic-era
isrc code: DEA551030543
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:23:16+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xb4eef4af5fd4427805d98bfb55c25d61a4f9d282278ce1bbc1bdeeea24c46bc1
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/DEA551030543
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 0xb4eef4af5fd4427805d98bfb55c25d61a4f9d282278ce1bbc1bdeeea24c46bc1. 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/DEA551030543.
  date published: 2026-07-08T03:20:19Z
audio: Pelleas et Melisande, Op. 80 (arr. C. Koechlin): VII. La Mort de Melisande - Andante molto, quasi adagio
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 110.893
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.889
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.257
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  additional property: Mode Name
    type: PropertyValue
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Koechlin: Organ Works
type: MusicAlbum
date published: 2011-09-06

Koechlin: Les heures persanes
type: MusicAlbum
date published: 2011-04-05
track: Les heures persanes, Op. 65: No. 1. Sieste, avant le depart: Lent
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  duration: PT3M34S
  duration ms: 214613
  explicit: false
  by artist: Charles Koechlin
  by artist: Ralph van Raat
  in album: Koechlin: Les heures persanes
    type: MusicAlbum
    date published: 2011-04-05
  genre: early-modern-classical
  genre: french-romanticism
  genre: impressionism
  genre: post-romantic-era
  isrc code: HKI191074701
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-06-18T02:58:20+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x4d6732fc469f691c8de88871cf8b1fb5996c7786f8356433bd5003ec7e675cea
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    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/HKI191074701
  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 0x4d6732fc469f691c8de88871cf8b1fb5996c7786f8356433bd5003ec7e675cea. 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/HKI191074701.
    date published: 2026-07-02T03:30:09Z
  audio: Les heures persanes, Op. 65: No. 1. Sieste, avant le depart: Lent
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 95.101
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Les heures persanes, Op. 65: No. 2. La caravane (reve, pendant la sieste): Pas vite
  type: MusicRecording
  duration: PT5M45S
  duration ms: 345746
  explicit: false
  by artist: Charles Koechlin
  by artist: Ralph van Raat
  in album: Koechlin: Les heures persanes
    type: MusicAlbum
    date published: 2011-04-05
  genre: early-modern-classical
  genre: french-romanticism
  genre: impressionism
  genre: post-romantic-era
  isrc code: HKI191074702
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-31T07:24:33+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xfaa2bec3a1a2b8c5b764b6eac26302b83fd7b52c9c27bb21b7bac2e9f7603059
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  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/HKI191074702
  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 0xfaa2bec3a1a2b8c5b764b6eac26302b83fd7b52c9c27bb21b7bac2e9f7603059. 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/HKI191074702.
    date published: 2026-07-31T08:26:41Z
  audio: Les heures persanes, Op. 65: No. 2. La caravane (reve, pendant la sieste): Pas vite
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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track: Les heures persanes, Op. 65: No. 3. L'escalade obscure: Adagio (non troppo)
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  duration: PT1M53S
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  explicit: false
  by artist: Charles Koechlin
  by artist: Ralph van Raat
  in album: Koechlin: Les heures persanes
    type: MusicAlbum
    date published: 2011-04-05
  genre: early-modern-classical
  genre: french-romanticism
  genre: impressionism
  genre: post-romantic-era
  isrc code: HKI191074703
  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: Les heures persanes, Op. 65: No. 3. L'escalade obscure: Adagio (non troppo)
track: Les heures persanes, Op. 65: No. 4. Matin frais, dans la haute vallee: Pas trop lent
track: Les heures persanes, Op. 65: No. 5. En vue de la ville: Moderato
track: Les heures persanes, Op. 65: No. 6. A travers les rues: Allegro vivo
track: Les heures persanes, Op. 65: No. 10. Roses au soleil de midi: Presque adagio
track: Les heures persanes, Op. 65: No. 11. A l'ombre, pres de la fontaine de marbre: Moderato
track: Les heures persanes, Op. 65: No. 13. Les collines, au coucher du soleil: Tres calme

CopyrightRegisteredAt
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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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value: 957118

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191074703

OTSTimestamp
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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 0x8dc227778b809924011e267fc9873f6d1e7bdb4d3361648156a9a8a986e28e33. 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/HKI191074703.
date published: 2026-07-08T03:20:19Z

Les heures persanes, Op. 65: No. 3. L'escalade obscure: Adagio (non troppo)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 97.054
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 6
additional property: Danceability
  type: PropertyValue
  value: 0.133
additional property: Energy
  type: PropertyValue
  value: 0.013
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.986
additional property: Instrumentalness
  type: PropertyValue
  value: 0.932
additional property: Liveness
  type: PropertyValue
  value: 0.087
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.32
additional property: Loudness (dB)
  type: PropertyValue
  value: -37.281
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Minor

Les heures persanes, Op. 65: No. 4. Matin frais, dans la haute vallee: Pas trop lent
type: MusicRecording
duration: PT2M47S
duration ms: 167453
explicit: false
by artist: Charles Koechlin
by artist: Ralph van Raat
in album: Koechlin: Les heures persanes
  type: MusicAlbum
  date published: 2011-04-05
genre: early-modern-classical
genre: french-romanticism
genre: impressionism
genre: post-romantic-era
isrc code: HKI191074704
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:34:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c4a6bc2dcb701e75905ead1c8c78ad54218b80109b397190d92c6f4ca4213f4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191074704
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18Z
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 0x9c4a6bc2dcb701e75905ead1c8c78ad54218b80109b397190d92c6f4ca4213f4. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/HKI191074704.
  date published: 2026-07-31T15:59:18Z
audio: Les heures persanes, Op. 65: No. 4. Matin frais, dans la haute vallee: Pas trop lent
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.872
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.52
  additional property: Energy
    type: PropertyValue
    value: 0.013
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.851
  additional property: Liveness
    type: PropertyValue
    value: 0.055
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.292
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Les heures persanes, Op. 65: No. 5. En vue de la ville: Moderato
type: MusicRecording
duration: PT1M44S
duration ms: 104853
explicit: false
by artist: Charles Koechlin
by artist: Ralph van Raat
in album: Koechlin: Les heures persanes
  type: MusicAlbum
  date published: 2011-04-05
genre: early-modern-classical
genre: french-romanticism
genre: impressionism
genre: post-romantic-era
isrc code: HKI191074705
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T01:58:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x88b4cca7eb23e2471856e213c24b3598f192612edee476a8c7ed3787dfc60a90
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/HKI191074705
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 0x88b4cca7eb23e2471856e213c24b3598f192612edee476a8c7ed3787dfc60a90. 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/HKI191074705.
  date published: 2026-07-31T02:19:15Z
audio: Les heures persanes, Op. 65: No. 5. En vue de la ville: Moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.296
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.413
  additional property: Energy
    type: PropertyValue
    value: 0.088
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.94
  additional property: Liveness
    type: PropertyValue
    value: 0.157
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.288
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Les heures persanes, Op. 65: No. 6. A travers les rues: Allegro vivo
type: MusicRecording
duration: PT4M6S
duration ms: 246280
explicit: false
by artist: Charles Koechlin
by artist: Ralph van Raat
in album: Koechlin: Les heures persanes
  type: MusicAlbum
  date published: 2011-04-05
genre: early-modern-classical
genre: french-romanticism
genre: impressionism
genre: post-romantic-era
isrc code: HKI191074706
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:12:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92682da57d5379cfbaa2886e52ebff5e866ed935f1ac45becceabd8e093e5212
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/HKI191074706
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 0x92682da57d5379cfbaa2886e52ebff5e866ed935f1ac45becceabd8e093e5212. 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/HKI191074706.
  date published: 2026-07-31T17:29:52Z
audio: Les heures persanes, Op. 65: No. 6. A travers les rues: Allegro vivo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.423
  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: 0.171
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.892
  additional property: Liveness
    type: PropertyValue
    value: 0.208
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.062
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.17
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Les heures persanes, Op. 65: No. 10. Roses au soleil de midi: Presque adagio
type: MusicRecording
duration: PT2M20S
duration ms: 140626
explicit: false
by artist: Charles Koechlin
by artist: Ralph van Raat
in album: Koechlin: Les heures persanes
  type: MusicAlbum
  date published: 2011-04-05
genre: early-modern-classical
genre: french-romanticism
genre: impressionism
genre: post-romantic-era
isrc code: HKI191074710
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:23:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9cec975b90ef60663af2222f3c6965fe57075807d32c445fb8a5771330114c09
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/HKI191074710
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 0x9cec975b90ef60663af2222f3c6965fe57075807d32c445fb8a5771330114c09. 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/HKI191074710.
  date published: 2026-07-08T03:20:19Z
audio: Les heures persanes, Op. 65: No. 10. Roses au soleil de midi: Presque adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.216
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.393
  additional property: Energy
    type: PropertyValue
    value: 0.001
  additional property: Speechiness
    type: PropertyValue
    value: 0.068
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.923
  additional property: Liveness
    type: PropertyValue
    value: 0.069
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.409
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.784
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Les heures persanes, Op. 65: No. 11. A l'ombre, pres de la fontaine de marbre: Moderato
type: MusicRecording
duration: PT2M22S
duration ms: 142960
explicit: false
by artist: Charles Koechlin
by artist: Ralph van Raat
in album: Koechlin: Les heures persanes
  type: MusicAlbum
  date published: 2011-04-05
genre: early-modern-classical
genre: french-romanticism
genre: impressionism
genre: post-romantic-era
isrc code: HKI191074711
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T00:42:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc598b32428e1ce026330588e57b9cc38ae6df3840ff6814ad1a62cfde6d977a
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/HKI191074711
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 0xdc598b32428e1ce026330588e57b9cc38ae6df3840ff6814ad1a62cfde6d977a. 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/HKI191074711.
  date published: 2026-08-01T01:44:32Z
audio: Les heures persanes, Op. 65: No. 11. A l'ombre, pres de la fontaine de marbre: Moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.899
  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: 0.245
  additional property: Energy
    type: PropertyValue
    value: 0.091
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.932
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.982
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Les heures persanes, Op. 65: No. 13. Les collines, au coucher du soleil: Tres calme
type: MusicRecording
duration: PT2M42S
duration ms: 162613
explicit: false
by artist: Charles Koechlin
by artist: Ralph van Raat
in album: Koechlin: Les heures persanes
  type: MusicAlbum
  date published: 2011-04-05
genre: early-modern-classical
genre: french-romanticism
genre: impressionism
genre: post-romantic-era
isrc code: HKI191074713
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:52:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x836bdc39f3255145732c3c44c794a6cd8a2220629595bf7eda4287ea8622afd4
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/HKI191074713
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 0x836bdc39f3255145732c3c44c794a6cd8a2220629595bf7eda4287ea8622afd4. 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/HKI191074713.
  date published: 2026-08-01T00:10:46Z
audio: Les heures persanes, Op. 65: No. 13. Les collines, au coucher du soleil: Tres calme
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.551
  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: 0.494
  additional property: Energy
    type: PropertyValue
    value: 0.005
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.996
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.955
  additional property: Liveness
    type: PropertyValue
    value: 0.07
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -37.701
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
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Koechlin: Piano Music, Vol. 3
type: MusicAlbum
date published: 2010-10-26
track: 24 Esquisses, Book 1, Op. 41: No. 10, Andante con moto, quasi moderato
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  by artist: Michael Korstick
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    date published: 2010-10-26
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  genre: french-romanticism
  genre: impressionism
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Koechlin, C.: Piano Music, Vol. 2
type: MusicAlbum
date published: 2009-05-01

Koechlin, C.: Offrande Musical Sur Le Nom De Bach / Les Bandar-Log
type: MusicAlbum
date published: 2009-01-01

Koechlin, C.: Piano Music, Vol. 1
type: MusicAlbum
date published: 2008-01-01

Koechlin: Vocal Works With Orchestra
type: MusicAlbum
date published: 2007-01-01

Koechlin: Music for Clarinet
type: MusicAlbum
date published: 2007-01-01

Koechlin: Les Heures Persanes, Op. 65Bis
type: MusicAlbum
date published: 2007-01-01
track: Les Heures persanes (Persian Hours), Op. 65bis: IX. Aubade (Morning Song)
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  by artist: Stuttgart Radio Symphony Orchestra
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T01:25:57Z
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Koechlin: 20 Chansons Bretonnes / Cello Sonata / Debussy: Cello Sonata
type: MusicAlbum
date published: 2006-01-01

Les Chants de Nectaire
type: MusicAlbum
date published: 2005

Widor & Magnard: Cello Sonatas; Koechlin: Chansons bretonnes
type: MusicAlbum
date published: 2003-06-01

Koechlin: Le Saxophone Lumineux
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track: 15 Etudes for Saxophone and Piano, Op. 188: II. Pour les sons liés et le charme de la sonorité
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  genre: impressionism
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T17:29:52Z
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Koechlin - Piano Music For Four Hands
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date published: 2001-02-26
track: Suite for Piano Duet, Op. 19: I. Canon
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  by artist: Tal & Groethuysen
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-08-01T00:10:46Z
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track: Suite for Piano Duet, Op. 19: II. Lied
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T04:14:58Z
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track: Sonatine francaise, Op. 60: No. 4: I. Romance
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  subject of: OpenTimestamps Proof of Existence
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track: Suite for Two Pianos, Op. 6: II. Andantino con moto

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OTSVerificationAPI
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

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Suite for Two Pianos, Op. 6: II. Andantino con moto
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