Homero Francesch
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genre: classical piano
description: thumb|Homero Francesch Homero Francesch (born 6 December 1947, Montevideo, Uruguay) is a Uruguay-born Swiss pianist. Biography Francesch took piano lessons with Santiago Baranda Reyes in Uruguay. In
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album: Mozart: Piano Trio in E-Flat Major - Reinecke: Piano Trio in A Major & Flute Sonata in E Minor "Undine"
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  date published: 2015-09-04
album: Meditation: 111 Pieces of Classical Music to Ease Your Mind
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      date published: 2026-07-08T03:20:19Z
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      date published: 2026-07-08T03:20:19Z
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  track: Corpus Christi Carol
  track: Fantasia on Greensleeves
  track: Thaïs / Acte Deux: Meditation
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  track: Piano Concerto No. 21 in C Major, K. 467: II. Andante
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  track: Adagio in G Minor "Albinoni's Adagio"
  track: Exhortation and Kohima: Exhortation
album: Schumann - The Masterworks
album: Stravinsky: Essentials
album: Bernstein: Sibelius – Stravinsky
album: Stravinsky: Les Noces; Mass
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album: Gian Carlo Menotti, Songs, Nocturne, Canti della Lontananza and other pieces
album: Ravel: Piano Works, Vol. 2
album: Ravel: Piano Works, Vol. 1
album: Chopin: Polonaises Nos. 1-7
album: Scarlatti: 12 Piano Sonatas
album: Henze: Concerto No. 2; Tristan; 2 Ballet Variations; 3 Tientos
album: Klaviermusik Für Kinder
album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
album: Klassik entdecken – Musik für Kinder
album: Sensual Classics: Classical Music Between The Sheets

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Christmas Mass "Puer Natus": Agnus Dei "Missa De Angelis"
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  date published: 2026-07-29T19:35:34Z
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Corpus Christi Carol
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
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Fantasia on Greensleeves
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  date published: 2026-07-08T03:20:19Z
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Thaïs / Acte Deux: Meditation
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Thaïs / Acte Deux: Meditation
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Nocturne No. 8 in D-Flat Major, Op. 27 No. 2
type: MusicRecording
duration: PT5M46S
duration ms: 346066
explicit: false
by artist: Frédéric Chopin
by artist: Vladimir Ashkenazy
in album: Meditation: 111 Pieces of Classical Music to Ease Your Mind
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  date published: 2013-01-01
genre: classical
genre: early-romantic-era
genre: polish-classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838388f5697ea4b9fb092327c60c546779a8e94cd2316fdfae0c8f10f44cbac5. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078340408 — a six-check JSON result.
  date published: 2026-07-30T19:26:00Z
audio: Nocturne No. 8 in D-Flat Major, Op. 27 No. 2
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Sleep
type: MusicRecording
duration: PT5M33S
duration ms: 333600
explicit: false
by artist: Eric Whitacre
by artist: Eric Whitacre Singers
in album: Meditation: 111 Pieces of Classical Music to Ease Your Mind
  type: MusicAlbum
  date published: 2013-01-01
isrc code: GBUM71026527
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additional property: OTSHash
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: Sleep
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
type: MusicRecording
duration: PT7M16S
duration ms: 436773
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Radu Lupu
by artist: English Chamber Orchestra
by artist: Uri Segal
in album: Meditation: 111 Pieces of Classical Music to Ease Your Mind
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF077410322
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Gnossienne No. 1 (Arr. Kleynjans)
type: MusicRecording
duration: PT3M40S
duration ms: 220560
explicit: false
by artist: Erik Satie
by artist: Kaori Muraji
in album: Meditation: 111 Pieces of Classical Music to Ease Your Mind
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  date published: 2013-01-01
genre: classical
genre: classical-piano
genre: impressionism
isrc code: GBBBA0500410
additional property: CopyrightID
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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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
audio: Gnossienne No. 1 (Arr. Kleynjans)
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Adagio for Strings, Op. 11
type: MusicRecording
duration: PT7M24S
duration ms: 444800
explicit: false
by artist: Samuel Barber
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Meditation: 111 Pieces of Classical Music to Ease Your Mind
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  date published: 2013-01-01
isrc code: NLA508542810
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Adagio for Strings, Op. 11
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Adagio in G Minor "Albinoni's Adagio"
type: MusicRecording
duration: PT7M19S
duration ms: 439240
explicit: false
by artist: Remo Giazotto
by artist: Eriko Sato
by artist: Edward Brewer
by artist: Orpheus Chamber Orchestra
in album: Meditation: 111 Pieces of Classical Music to Ease Your Mind
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  date published: 2013-01-01
genre: classical
isrc code: DEF058902740
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Adagio in G Minor "Albinoni's Adagio"
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Exhortation and Kohima: Exhortation
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duration: PT3M22S
duration ms: 202906
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by artist: John Tavener
by artist: The Sixteen
by artist: Harry Christophers
in album: Meditation: 111 Pieces of Classical Music to Ease Your Mind
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T07:19:23Z
audio: Exhortation and Kohima: Exhortation
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Schumann - The Masterworks
type: MusicAlbum
date published: 2010-01-01

Stravinsky: Essentials
type: MusicAlbum
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:20:19Z
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track: Scherzo à la Russe For Jazz Orchestra
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  by artist: Orpheus Chamber Orchestra
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-31T12:24:41Z
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track: The Firebird - Ballet: XVI. Infernal Dance of Kashchei's Subjects
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  duration: PT4M45S
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  by artist: Chicago Symphony Orchestra
  by artist: Pierre Boulez
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  additional property: OTSVerificationAPI
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  subject of: OpenTimestamps Proof of Existence
  audio: The Firebird - Ballet: XVI. Infernal Dance of Kashchei's Subjects
track: The Rake's Progress / Act I / Scene I: "The Woods Are Green"
track: Ragtime

OTSVerificationAPI
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OTSTimestamp
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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 0x2dd19e1744d954fc283e2486ba10ccbf737e1f8aeb77452ad4e9975a3292a15b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059231013 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

The Firebird - Ballet: XVI. Infernal Dance of Kashchei's Subjects
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additional property: Valence (Positivity)
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The Rake's Progress / Act I / Scene I: "The Woods Are Green"
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by artist: Igor Stravinsky
by artist: Deborah York
by artist: Ian Bostridge
by artist: Martin Robson
by artist: London Symphony Orchestra
by artist: John Eliot Gardiner
in album: Stravinsky: Essentials
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:59:18Z
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Ragtime
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duration: PT4M38S
duration ms: 278053
explicit: false
by artist: Igor Stravinsky
by artist: Orpheus Chamber Orchestra
in album: Stravinsky: Essentials
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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: 2026-07-31T20:22:46Z
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Bernstein: Sibelius – Stravinsky
type: MusicAlbum
date published: 2023-09-22

Stravinsky: Les Noces; Mass
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date published: 1977-01-01
track: Les Noces, K40, Pt. 1: I. The Bride's Chamber "La tresse"
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  by artist: John Mitchinson
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  by artist: Leonard Bernstein
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T18:23:33Z
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track: Les Noces, K40, Pt. 1: II. The Bridegroom's House
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  by artist: Igor Stravinsky
  by artist: Anny Mory
  by artist: Patricia Parker
  by artist: John Mitchinson
  by artist: Paul Hudson
  by artist: Martha Argerich
  by artist: Krystian Zimerman
  by artist: Cyprien Katsaris
  by artist: Homero Francesch
  by artist: English Bach Festival Percussion Ensemble
  by artist: Leonard Bernstein
  by artist: English Bach Festival Chorus
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    date published: 1977-01-01
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057701942
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237791785b7e34838997e6bae87a04e94eda433b89dbb1ee3f68e6d6988c63b4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057701942 — a six-check JSON result.
    date published: 2026-07-31T00:26:26Z
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  by artist: Igor Stravinsky
  by artist: Anny Mory
  by artist: Patricia Parker
  by artist: John Mitchinson
  by artist: Paul Hudson
  by artist: Martha Argerich
  by artist: Krystian Zimerman
  by artist: Cyprien Katsaris
  by artist: Homero Francesch
  by artist: English Bach Festival Percussion Ensemble
  by artist: Leonard Bernstein
  by artist: English Bach Festival Chorus
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  additional property: CopyrightID
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  additional property: CopyrightRegisteredAt
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  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 Noces, K40, Pt. 1: III. The Departure of the Bride
track: Les Noces, K40, Pt. 2: IV. The Wedding Feast
track: Mass, K77: I. Kyrie

Patricia Parker
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John Mitchinson
type: MusicGroup

Paul Hudson
type: MusicGroup

Martha Argerich
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Krystian Zimerman
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Cyprien Katsaris
type: MusicGroup

Homero Francesch
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English Bach Festival Percussion Ensemble
type: MusicGroup

Leonard Bernstein
type: MusicGroup

English Bach Festival Chorus
type: MusicGroup

Stravinsky: Les Noces; Mass
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date published: 1977-01-01

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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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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/DEF057701943

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 0x3a105f3611f9c8f4a76de52a6c3eb638f6f8005fb7e35f973f36a1ae5135457c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057701943 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Les Noces, K40, Pt. 1: III. The Departure of the Bride
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Key Name
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Les Noces, K40, Pt. 2: IV. The Wedding Feast
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duration: PT9M55S
duration ms: 595000
explicit: false
by artist: Igor Stravinsky
by artist: Anny Mory
by artist: Patricia Parker
by artist: John Mitchinson
by artist: Paul Hudson
by artist: Martha Argerich
by artist: Krystian Zimerman
by artist: Cyprien Katsaris
by artist: Homero Francesch
by artist: English Bach Festival Percussion Ensemble
by artist: Leonard Bernstein
by artist: English Bach Festival Chorus
in album: Stravinsky: Les Noces; Mass
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057701944
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c2e55f241ca25863fedecaa270c326411f18c88db8629ce222a8637b2765f6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057701944 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Les Noces, K40, Pt. 2: IV. The Wedding Feast
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Mass, K77: I. Kyrie
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duration: PT3M12S
duration ms: 192000
explicit: false
by artist: Igor Stravinsky
by artist: English Bach Festival Orchestra, Members of the
by artist: Leonard Bernstein
by artist: Trinity Boys Choir
by artist: English Bach Festival Chorus
in album: Stravinsky: Les Noces; Mass
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057703011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/DEF057703011
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 0x973afd1b6ca709606959fb2964679a9edde0def5ba3351a71cd795e974c08b02. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057703011 — a six-check JSON result.
  date published: 2026-07-08T03:53:27Z
audio: Mass, K77: I. Kyrie
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Stravinsky / Shostakovich
type: MusicAlbum
date published: 2005-01-01

Gian Carlo Menotti, Songs, Nocturne, Canti della Lontananza and other pieces
type: MusicAlbum
date published: 1988-01-01

Ravel: Piano Works, Vol. 2
type: MusicAlbum
date published: 2016-01-01

Ravel: Piano Works, Vol. 1
type: MusicAlbum
date published: 2016-01-01
track: Le tombeau de Couperin, M. 68: No. 1. Prelude
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  explicit: false
  by artist: Maurice Ravel
  by artist: Homero Francesch
  in album: Ravel: Piano Works, Vol. 1
    type: MusicAlbum
    date published: 2016-01-01
  genre: classical
  genre: impressionism
  genre: neoclassicism
  genre: post-romantic-era
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201673de740225e16a6089fe7f5acbc44cca11e698dd1a9c2a656df9c3030a06. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501540 — a six-check JSON result.
    date published: 2026-07-08T03:22:41Z
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track: Le tombeau de Couperin, M. 68: No. 2. Fugue
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-31T06:42:11Z
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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: Le tombeau de Couperin, M. 68: No. 3. Forlane
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  by artist: Homero Francesch
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    date published: 2016-01-01
  genre: classical
  genre: impressionism
  genre: neoclassicism
  genre: post-romantic-era
  isrc code: CH0041501560
  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 tombeau de Couperin, M. 68: No. 3. Forlane
track: Le tombeau de Couperin, M. 68: No. 5. Menuet
track: Prélude, M. 65: Prelude
track: Valses nobles et sentimentales, M. 61: II. Assez lent, avec une expression intense
track: Valses nobles et sentimentales, M. 61: III. Modere
track: Valses nobles et sentimentales, M. 61: IV. Assez anime
track: Valses nobles et sentimentales, M. 61: V. Presque lent, dans un sentiment intime
track: Valses nobles et sentimentales, M. 61: VII. Moins vif
track: Valses nobles et sentimentales, M. 61: VIII. Epilogue: Lent
track: Pavane pour une infante defunte

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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0xadc915dc08e49816d3c421ce880b194590387e16e614be34e4342d4d76d7bba4

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 960473

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960473

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501560

OTSTimestamp
type: PropertyValue
value: 2026-07-31T22:27:44Z

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 0xadc915dc08e49816d3c421ce880b194590387e16e614be34e4342d4d76d7bba4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501560 — a six-check JSON result.
date published: 2026-07-31T22:27:44Z

Le tombeau de Couperin, M. 68: No. 3. Forlane
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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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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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Le tombeau de Couperin, M. 68: No. 5. Menuet
type: MusicRecording
duration: PT4M31S
duration ms: 271666
explicit: false
by artist: Maurice Ravel
by artist: Homero Francesch
in album: Ravel: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: CH0041501580
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501580
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 0x381ad80f62b08c5bcd705568d9032602f42596ab42603971428708cf8af09822. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501580 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Le tombeau de Couperin, M. 68: No. 5. Menuet
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Prélude, M. 65: Prelude
type: MusicRecording
duration: PT1M17S
duration ms: 77826
explicit: false
by artist: Maurice Ravel
by artist: Homero Francesch
in album: Ravel: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: CH0041501600
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:26:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe891d5a682bf2851cf47c4b00f5b63c3a0206a93c1f5ebae0377491eddb8f0f3
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957026
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501600
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T11:02:43Z
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 0xe891d5a682bf2851cf47c4b00f5b63c3a0206a93c1f5ebae0377491eddb8f0f3. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501600 — a six-check JSON result.
  date published: 2026-07-07T11:02:43Z
audio: Prélude, M. 65: Prelude
  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
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -38.677
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Valses nobles et sentimentales, M. 61: II. Assez lent, avec une expression intense
type: MusicRecording
duration: PT2M30S
duration ms: 150240
explicit: false
by artist: Maurice Ravel
by artist: Homero Francesch
in album: Ravel: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: CH0041501670
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:57:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80fbfa8c295134a1707c8b0d3e71d4d36d2d9789607b897530a60adb788cc99d
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501670
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 0x80fbfa8c295134a1707c8b0d3e71d4d36d2d9789607b897530a60adb788cc99d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501670 — a six-check JSON result.
  date published: 2026-08-01T00:10:46Z
audio: Valses nobles et sentimentales, M. 61: II. Assez lent, avec une expression intense
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Valses nobles et sentimentales, M. 61: III. Modere
type: MusicRecording
duration: PT1M28S
duration ms: 88333
explicit: false
by artist: Maurice Ravel
by artist: Homero Francesch
in album: Ravel: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: CH0041501680
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501680
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0xf25e0ee3dd80fc78dca5fb5f2664dea6b74b9cecbb8471ed942ae5e7382db585. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501680 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Valses nobles et sentimentales, M. 61: III. Modere
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Valses nobles et sentimentales, M. 61: IV. Assez anime
type: MusicRecording
duration: PT1M13S
duration ms: 73893
explicit: false
by artist: Maurice Ravel
by artist: Homero Francesch
in album: Ravel: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: CH0041501690
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501690
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 0xf66bafd58c3f45905344ccd93705303417e2658e1812123f63c8a2d22f385435. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501690 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Valses nobles et sentimentales, M. 61: IV. Assez anime
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.252
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.956
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.118
  additional property: Loudness (dB)
    type: PropertyValue
    value: -38.542
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Valses nobles et sentimentales, M. 61: V. Presque lent, dans un sentiment intime
type: MusicRecording
duration: PT1M18S
duration ms: 78000
explicit: false
by artist: Maurice Ravel
by artist: Homero Francesch
in album: Ravel: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: CH0041501700
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x7ac74f2960657070272b777a53f54bd2e405dd1c86fd12aa424c0a140e569e1c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
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/CH0041501700
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 0x7ac74f2960657070272b777a53f54bd2e405dd1c86fd12aa424c0a140e569e1c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501700 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Valses nobles et sentimentales, M. 61: V. Presque lent, dans un sentiment intime
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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
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.252
  additional property: Energy
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    value: 0.005
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.875
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.205
  additional property: Loudness (dB)
    type: PropertyValue
    value: -42.866
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Minor

Valses nobles et sentimentales, M. 61: VII. Moins vif
type: MusicRecording
duration: PT2M57S
duration ms: 177666
explicit: false
by artist: Maurice Ravel
by artist: Homero Francesch
in album: Ravel: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: CH0041501720
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T02:10:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc6413fbbb3a3f025500d0b3a92abeec85ed256dd6b5480443e361ef46990b05a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
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/CH0041501720
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 0xc6413fbbb3a3f025500d0b3a92abeec85ed256dd6b5480443e361ef46990b05a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501720 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Valses nobles et sentimentales, M. 61: VII. Moins vif
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 92.697
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.387
  additional property: Energy
    type: PropertyValue
    value: 0.04
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.136
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.523
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Valses nobles et sentimentales, M. 61: VIII. Epilogue: Lent
type: MusicRecording
duration: PT4M17S
duration ms: 257173
explicit: false
by artist: Maurice Ravel
by artist: Homero Francesch
in album: Ravel: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: CH0041501730
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T02:22:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9fdce8106e15ba57e786451100c5945054f03c97dae5edd24e021048f759258d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501730
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03Z
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 0x9fdce8106e15ba57e786451100c5945054f03c97dae5edd24e021048f759258d. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501730 — a six-check JSON result.
  date published: 2026-08-01T03:13:03Z
audio: Valses nobles et sentimentales, M. 61: VIII. Epilogue: Lent
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 96.809
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.272
  additional property: Energy
    type: PropertyValue
    value: 0.002
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.346
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -40.699
  additional property: Key Name
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Pavane pour une infante defunte
type: MusicRecording
duration: PT5M53S
duration ms: 353960
explicit: false
by artist: Maurice Ravel
by artist: Homero Francesch
in album: Ravel: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: CH0041501740
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T04:20:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x27c7b457af9a15e7ed44f5d0638583ff39fbfe34d6c07183c33b57e590b8372d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501740
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T04:52:22Z
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 0x27c7b457af9a15e7ed44f5d0638583ff39fbfe34d6c07183c33b57e590b8372d. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501740 — a six-check JSON result.
  date published: 2026-08-01T04:52:22Z
audio: Pavane pour une infante defunte
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.79
  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: 0.305
  additional property: Energy
    type: PropertyValue
    value: 0.003
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.937
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.129
  additional property: Loudness (dB)
    type: PropertyValue
    value: -36.827
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Chopin: Polonaises Nos. 1-7
type: MusicAlbum
date published: 2016-01-01

Scarlatti: 12 Piano Sonatas
type: MusicAlbum
date published: 2015-11-06
track: Keyboard Sonata in F Minor, K.466/L.118/P.501
  type: MusicRecording
  duration: PT7M25S
  duration ms: 445000
  explicit: false
  by artist: Domenico Scarlatti
  by artist: Homero Francesch
  in album: Scarlatti: 12 Piano Sonatas
    type: MusicAlbum
    date published: 2015-11-06
  genre: classical
  genre: early-music
  genre: baroque
  genre: italian-baroque
  isrc code: CH0041501510
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T02:02:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x643244890284e252616239f13139462bf128db3cae6ac2c808bcef9894cc927e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960500
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960500
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501510
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T03:13:03Z
  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 0x643244890284e252616239f13139462bf128db3cae6ac2c808bcef9894cc927e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041501510 — a six-check JSON result.
    date published: 2026-08-01T03:13:03Z
  audio: Keyboard Sonata in F Minor, K.466/L.118/P.501
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 113.396
    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: 0.285
    additional property: Energy
      type: PropertyValue
      value: 0.045
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.993
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.92
    additional property: Liveness
      type: PropertyValue
      value: 0.077
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.116
    additional property: Loudness (dB)
      type: PropertyValue
      value: -31.684
    additional property: Key Name
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      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Henze: Concerto No. 2; Tristan; 2 Ballet Variations; 3 Tientos
type: MusicAlbum
date published: 1996-01-01

Klaviermusik Für Kinder
type: MusicAlbum
date published: 2006-01-01

Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
type: MusicAlbum
date published: 2018-10-12
track: Kanarienvögel
  type: MusicRecording
  duration: PT1M23S
  duration ms: 83893
  explicit: false
  by artist: Robert Schumann
  by artist: Will Quadflieg
  by artist: Wilhelm Kempff
  by artist: Klaus-Peter Kaehler
  by artist: Helga Bahrens
  by artist: Volker Bogdan
  by artist: Christian Stark
  by artist: René Genesis
  by artist: Hans Sievers
  by artist: Harald Pages
  by artist: Heidi Schaffrath
  by artist: Joachim Richert
  by artist: Renate Pichler
  by artist: Ursula Vogel
  by artist: Matthias Grimm
  in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
    type: MusicAlbum
    date published: 2018-10-12
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: DEF058331270
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T09:39:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd7266e87b56ba0e714dfaaf75b2bdd3bda009548c82fd68e9dbc9de5dd46f712
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960383
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960383
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331270
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T09:50:37Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7266e87b56ba0e714dfaaf75b2bdd3bda009548c82fd68e9dbc9de5dd46f712. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331270 — a six-check JSON result.
    date published: 2026-07-31T09:50:37Z
  audio: Kanarienvögel
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.671
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 6
    additional property: Danceability
      type: PropertyValue
      value: 0.555
    additional property: Energy
      type: PropertyValue
      value: 0.237
    additional property: Speechiness
      type: PropertyValue
      value: 0.558
    additional property: Acousticness
      type: PropertyValue
      value: 0.927
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.182
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Neue Zeitschrift für Musik
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144906
  explicit: false
  by artist: Robert Schumann
  by artist: Will Quadflieg
  by artist: Wilhelm Kempff
  by artist: Klaus-Peter Kaehler
  by artist: Helga Bahrens
  by artist: Volker Bogdan
  by artist: Christian Stark
  by artist: René Genesis
  by artist: Hans Sievers
  by artist: Harald Pages
  by artist: Heidi Schaffrath
  by artist: Joachim Richert
  by artist: Renate Pichler
  by artist: Ursula Vogel
  by artist: Matthias Grimm
  in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
    type: MusicAlbum
    date published: 2018-10-12
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: DEF058331271
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T09:04:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6f0f3b8aae5260a83c368b124782b52dbb8e10f8a01ee73935fe04cbb86e62aa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960379
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960379
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331271
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T09:25:34Z
  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
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    date published: 2026-07-31T09:25:34Z
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track: Florestan und Eusebius
track: Die Romantik
track: Das Scherzo
track: Der junge Dichter
track: Zwischen Büchern und Klavier
track: Der gestrenge Lehrer
track: Geschichtenerzählen mit Clara
track: Der Virtuose
track: Schmetterlinge
track: Träumerei & Liebe mit Hindernissen
track: Kampf um die Liebe
track: Das Kunstlied
track: Der einsame Komponist
track: Das Klavierkonzert
track: Berühmte Besucher
track: Ein großer Bruder
track: Kein schönes Ende

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value: Major

Florestan und Eusebius
type: MusicRecording
duration: PT1M58S
duration ms: 118746
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Wilhelm Kempff
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331272
additional property: CopyrightID
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc924ed58af505786ce218b051bc78d31ca663effd3fb0d61a6a0e39f3ed84697. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331272 — a six-check JSON result.
  date published: 2026-07-08T03:39:04Z
audio: Florestan und Eusebius
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Die Romantik
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duration: PT1M39S
duration ms: 99440
explicit: false
by artist: Franz Schubert
by artist: Will Quadflieg
by artist: Dietrich Fischer-Dieskau
by artist: Gerald Moore
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331273
additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T20:42:35Z
audio: Die Romantik
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Das Scherzo
type: MusicRecording
duration: PT0M55S
duration ms: 55773
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Wilhelm Kempff
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331274
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Das Scherzo
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Der junge Dichter
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duration: PT2M43S
duration ms: 163706
explicit: false
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by artist: Will Quadflieg
by artist: Wilhelm Kempff
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331275
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6e6e8a35c1376a1a9f3a2a1172a5ebc99f9b22c3d06dabd4d22d0cc9e66bde. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331275 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Der junge Dichter
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Zwischen Büchern und Klavier
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duration: PT1M28S
duration ms: 88373
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Homero Francesch
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331276
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9053f5d9973adf1d481ef3f64a7c542d81d972e4a7f3b01d9a2295700ec295. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331276 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Zwischen Büchern und Klavier
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Der gestrenge Lehrer
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duration: PT1M56S
duration ms: 116986
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by artist: Will Quadflieg
by artist: Homero Francesch
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331277
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfeba528302ec89e11ca07870a15806e5b7fa0ca627a37f61a141f2953e0569. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331277 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Der gestrenge Lehrer
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.287
  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: 0.622
  additional property: Energy
    type: PropertyValue
    value: 0.142
  additional property: Speechiness
    type: PropertyValue
    value: 0.564
  additional property: Acousticness
    type: PropertyValue
    value: 0.912
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.333
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.296
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.158
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Geschichtenerzählen mit Clara
type: MusicRecording
duration: PT2M30S
duration ms: 150213
explicit: false
by artist: Clara Schumann
by artist: Will Quadflieg
by artist: Conrad Hansen
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: early-romantic-era
genre: german-romanticism
isrc code: DEF058331278
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:20:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51e74f7ba4d20673640fd28489b2b983eb5bbfc2b5c9468a3f74f671eec9478b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
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/DEF058331278
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 0x51e74f7ba4d20673640fd28489b2b983eb5bbfc2b5c9468a3f74f671eec9478b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331278 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Geschichtenerzählen mit Clara
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.346
  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: 0.693
  additional property: Energy
    type: PropertyValue
    value: 0.146
  additional property: Speechiness
    type: PropertyValue
    value: 0.952
  additional property: Acousticness
    type: PropertyValue
    value: 0.569
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.344
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.189
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.679
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Der Virtuose
type: MusicRecording
duration: PT1M50S
duration ms: 110946
explicit: false
by artist: Franz Liszt
by artist: Will Quadflieg
by artist: Roberto Szidon
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: late-romantic-era
isrc code: DEF058331279
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:10:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe5af0fc411aba4d57323739bfc71177e6c07235cb93fb8bfc6869f36346b6c69
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331279
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
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 0xe5af0fc411aba4d57323739bfc71177e6c07235cb93fb8bfc6869f36346b6c69. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331279 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Der Virtuose
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 90.609
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.587
  additional property: Energy
    type: PropertyValue
    value: 0.227
  additional property: Speechiness
    type: PropertyValue
    value: 0.925
  additional property: Acousticness
    type: PropertyValue
    value: 0.831
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.298
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.682
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.773
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Schmetterlinge
type: MusicRecording
duration: PT1M40S
duration ms: 100080
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Wilhelm Kempff
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331280
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T21:22:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x65892c8b4decb45123aafbc1934a18978b2b92ec710dfe384f456b8a66e3b89f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960473
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960473
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331280
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44Z
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 0x65892c8b4decb45123aafbc1934a18978b2b92ec710dfe384f456b8a66e3b89f. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331280 — a six-check JSON result.
  date published: 2026-07-31T22:27:44Z
audio: Schmetterlinge
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.368
  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: 0.578
  additional property: Energy
    type: PropertyValue
    value: 0.07
  additional property: Speechiness
    type: PropertyValue
    value: 0.888
  additional property: Acousticness
    type: PropertyValue
    value: 0.872
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.2
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.306
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.866
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Träumerei & Liebe mit Hindernissen
type: MusicRecording
duration: PT2M29S
duration ms: 149213
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Homero Francesch
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331281
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:16:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcca51b257b18a1eabca38c95aa03300a24e8061ae775803a4cf687b24fc365c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960422
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960422
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331281
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:27:29Z
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 0xcca51b257b18a1eabca38c95aa03300a24e8061ae775803a4cf687b24fc365c2. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331281 — a six-check JSON result.
  date published: 2026-07-31T15:27:29Z
audio: Träumerei & Liebe mit Hindernissen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.961
  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: 0.621
  additional property: Energy
    type: PropertyValue
    value: 0.114
  additional property: Speechiness
    type: PropertyValue
    value: 0.653
  additional property: Acousticness
    type: PropertyValue
    value: 0.847
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.345
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.094
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.908
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Kampf um die Liebe
type: MusicRecording
duration: PT3M4S
duration ms: 184400
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Fritz Wunderlich
by artist: Hubert Giesen
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331282
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:19:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdfe8618f20810acf2d419a9bc7f93708ce210f6215e39086fdd8edaf9f698a64
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/DEF058331282
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 0xdfe8618f20810acf2d419a9bc7f93708ce210f6215e39086fdd8edaf9f698a64. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331282 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Kampf um die Liebe
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.147
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.59
  additional property: Energy
    type: PropertyValue
    value: 0.122
  additional property: Speechiness
    type: PropertyValue
    value: 0.815
  additional property: Acousticness
    type: PropertyValue
    value: 0.91
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.363
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.351
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.205
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Das Kunstlied
type: MusicRecording
duration: PT3M40S
duration ms: 220733
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Dietrich Fischer-Dieskau
by artist: Fritz Wunderlich
by artist: Christoph Eschenbach
by artist: Hubert Giesen
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331283
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:45:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e9229a4d2019a08105055f1a3618bf3ef5823e08f61622b4ef806a906624384
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/DEF058331283
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 0x8e9229a4d2019a08105055f1a3618bf3ef5823e08f61622b4ef806a906624384. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331283 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Das Kunstlied
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.797
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
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Der einsame Komponist
type: MusicRecording
duration: PT3M41S
duration ms: 221666
explicit: false
by artist: Felix Mendelssohn
by artist: Will Quadflieg
by artist: Nathan Milstein
by artist: Claudio Abbado
by artist: Wiener Philharmoniker
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DEF058331285
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Der einsame Komponist
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Das Klavierkonzert
type: MusicRecording
duration: PT4M11S
duration ms: 251013
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Martha Argerich
by artist: National Symphony Orchestra Washington
by artist: Mstislav Rostropovich
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331286
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Das Klavierkonzert
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  additional property: Valence (Positivity)
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Berühmte Besucher
type: MusicRecording
duration: PT3M31S
duration ms: 211893
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Christoph Eschenbach
by artist: Drolc-Quartett
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331287
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c727447725a44a2bc166dc850ef4911be110138f50fa584bf2ee2e105e9f5b2. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058331287 — a six-check JSON result.
  date published: 2026-07-31T15:27:29Z
audio: Berühmte Besucher
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Ein großer Bruder
type: MusicRecording
duration: PT3M18S
duration ms: 198026
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Homero Francesch
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331288
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T18:48:12Z
audio: Ein großer Bruder
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Kein schönes Ende
type: MusicRecording
duration: PT3M58S
duration ms: 238493
explicit: false
by artist: Robert Schumann
by artist: Will Quadflieg
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Klaus-Peter Kaehler
by artist: Helga Bahrens
by artist: Volker Bogdan
by artist: Christian Stark
by artist: René Genesis
by artist: Hans Sievers
by artist: Harald Pages
by artist: Heidi Schaffrath
by artist: Joachim Richert
by artist: Renate Pichler
by artist: Ursula Vogel
by artist: Matthias Grimm
in album: Wir Entdecken Komponisten: Robert Schumann – Träumerei am Klavier
  type: MusicAlbum
  date published: 2018-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEF058331289
additional property: CopyrightID
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T17:29:52Z
audio: Kein schönes Ende
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Klassik entdecken – Musik für Kinder
type: MusicAlbum
date published: 2012-01-01

Sensual Classics: Classical Music Between The Sheets
type: MusicAlbum
date published: 2013-01-01