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genre: chamber music
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followers: 319
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subject of: OpenTimestamps Proof of Existence
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album: Mozart: Piano Quartets Nos. 1 & 2
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    by artist: Franz Welser-Möst
    by artist: Felicity Lott
    by artist: London Philharmonic Orchestra
    by artist: London Philharmonic Choir
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      date published: 2021-04-17
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    additional property: OTSVerifyInstructions
      type: PropertyValue
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:20:19Z
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:20:19Z
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  track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": III. Menuetto (Allegretto)
  track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo (Allegro)
album: This Is Mozart
album: Hits of Mozart
album: Mozart at the Office
album: Mozart - Classical Masterminds
album: Mozart Classical Masterpieces
album: Mozart for Mind & Spirit
album: The Music - Mozart
album: #nowplaying Mozart
album: Study Mozart
album: Mozart - The Classics
album: Relax - Mozart
album: András Schiff - Concertos & Chamber Music
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album: Haydn: Piano Trios Nos. 25, 40, 42 & 44
album: Haydn: Piano Trios Nos. 27, 41, 43 & 45
album: Mozart: Violin Sonatas Nos. 21, 27 & 32; Six Variations on "Hélas, j'ai perdu mon amant"
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album: 'December' - A Season of Classics: Mozart
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album: Relax Schubert
album: Janácek: Concertino; On An Overgrown Path; Violin Sonata
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album: Mozart: Clarinet Trio, K. 498 "Kegelstatt", Piano Trios, K. 502 & K. 542
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album: Mozart 225: Mozart's Instruments
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by artist: Academy of St. Martin in the Fields
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
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popularity: 1
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo (Allegro)
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by artist: Academy of St. Martin in the Fields
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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  additional property: Valence (Positivity)
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This Is Mozart
type: MusicAlbum
date published: 2021-05-15
track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romanze (Andante)
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  by artist: Wolfgang Amadeus Mozart
  by artist: Sir Neville Marriner
  by artist: Academy of St. Martin in the Fields
  in album: This Is Mozart
    type: MusicAlbum
    date published: 2021-05-15
  popularity: 2
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: GBAYC9003017
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  additional property: CopyrightChainExplorerURL
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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/GBAYC9003017
  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 0xb492139493bf1d6268d4b6b01e3179f381e1fbd8fc855a4b1cc66fac7e0f4767. 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/GBAYC9003017 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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    additional property: Mode (Major/Minor)
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track: Horn Concerto No. 1 in D Major, K. 412: I. Allegro
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  by artist: Wolfgang Amadeus Mozart
  by artist: Jeffrey Tate
  by artist: Radovan Vlatkovic
  by artist: English Chamber Orchestra
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    date published: 2021-05-15
  popularity: 1
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    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: 2026-07-30T22:27:30Z
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track: Don Giovanni, K. 527, Act I: Sinfonia (Orchestra)
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  by artist: Riccardo Muti
  by artist: Wiener Philharmoniker
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    type: MusicAlbum
    date published: 2021-05-15
  popularity: 1
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Don Giovanni, K. 527, Act I: Sinfonia (Orchestra)
track: Fugue in G Minor, K. 401
track: Requiem in D Minor, K. 626: III. Sequenz No. 3, Rex tremendae
track: Symphony No. 20 in D Major, K. 133: III. Menuetto & Trio
track: Symphony No. 32 in G K318: Andante
track: Serenade No. 11 in E-Flat Major, K. 375: III. Adagio

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CopyrightStatus
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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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value: 957118

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004362

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 0x3018003825faf3dde0bdd1043af4df7db618b87a7298a56f2c01b6b76bfecbbe. 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/GBAYC9004362 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Don Giovanni, K. 527, Act I: Sinfonia (Orchestra)
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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Fugue in G Minor, K. 401
type: MusicRecording
duration: PT5M21S
duration ms: 321200
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Güher Pekinel
by artist: Süher Pekinel
in album: This Is Mozart
  type: MusicAlbum
  date published: 2021-05-15
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA800115814
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115814
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c2ac7f89d52533fab6acbec0852ad2905af657e75eb6c1edc8c524867c7955. 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/DEA800115814 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Fugue in G Minor, K. 401
  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: Speechiness
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  additional property: Acousticness
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Requiem in D Minor, K. 626: III. Sequenz No. 3, Rex tremendae
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duration: PT1M58S
duration ms: 118933
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Franz Welser-Möst
by artist: London Philharmonic Orchestra
by artist: London Philharmonic Choir
in album: This Is Mozart
  type: MusicAlbum
  date published: 2021-05-15
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYD8900806
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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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8907743218fb64cf66671922e45e3622475205ec818d960f81b0d65a8852d00. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD8900806 — a six-check JSON result.
  date published: 2026-07-31T02:19:15Z
audio: Requiem in D Minor, K. 626: III. Sequenz No. 3, Rex tremendae
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Symphony No. 20 in D Major, K. 133: III. Menuetto & Trio
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duration: PT3M15S
duration ms: 195773
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Jeffrey Tate
by artist: English Chamber Orchestra
in album: This Is Mozart
  type: MusicAlbum
  date published: 2021-05-15
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC9303027
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: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3569e5c91d9ceb947fdb7280c6b4496bcbdf2bd1d3628b1924f27ddbffe4f5. 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/GBAYC9303027 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 20 in D Major, K. 133: III. Menuetto & Trio
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Symphony No. 32 in G K318: Andante
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duration: PT3M35S
duration ms: 215000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: This Is Mozart
  type: MusicAlbum
  date published: 2021-05-15
popularity: 1
genre: classical
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subject of: OpenTimestamps Proof of Existence
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Hits of Mozart
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Mozart at the Office
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track: Mass No. 18 in C Minor, K. 427: I. Kyrie
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Mozart - Classical Masterminds
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Mozart Classical Masterpieces
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Mozart for Mind & Spirit
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The Music - Mozart
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#nowplaying Mozart
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date published: 2021-05-01

Study Mozart
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Mozart - The Classics
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date published: 2021-04-24

Relax - Mozart
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date published: 2021-01-21

András Schiff - Concertos & Chamber Music
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    value: https://blockstream.info/api/block-height/960404
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809642301
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T13:06:57Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec731ac0dd6e417a1d50376707b9d096329e34e0faa252e806c5cbe807ad540. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809642301 — a six-check JSON result.
    date published: 2026-07-31T13:06:57Z
  audio: Beethoven: Piano Concerto No. 2 in B-Flat Major, Op. 19: I. Allegro con brio
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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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Classical Trios
type: MusicAlbum
date published: 2021-08-14

Bartók: Violin Sonata No. 1; Sonata for 2 Pianos & Percussion; 10 Duos
type: MusicAlbum
date published: 1994-01-01

Brahms & Schumann: Violin Sonatas
type: MusicAlbum
date published: 2024-10-11
track: Violin Sonata No. 1 in G Major, Op. 78: I. Vivace ma non troppo
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  duration: PT10M18S
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  by artist: Johannes Brahms
  by artist: Yuuko Shiokawa
  by artist: András Schiff
  in album: Brahms & Schumann: Violin Sonatas
    type: MusicAlbum
    date published: 2024-10-11
  genre: classical
  genre: german-romanticism
  genre: classical-piano
  genre: late-romantic-era
  genre: chamber-music
  genre: orchestral
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959163
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331981501
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T18:47:29Z
  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 0x2d072cb70da2bf2e385d498b09aeadfe8321950e88a03e3655058d1777783e19. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/DEB331981501 — a six-check JSON result.
    date published: 2026-07-22T18:47:29Z
  audio: Violin Sonata No. 1 in G Major, Op. 78: I. Vivace ma non troppo
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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: 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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track: Violin Sonata No. 1 in G Major, Op. 78: II. Adagio
  type: MusicRecording
  duration: PT7M14S
  duration ms: 434000
  explicit: false
  by artist: Johannes Brahms
  by artist: Yuuko Shiokawa
  by artist: András Schiff
  in album: Brahms & Schumann: Violin Sonatas
    type: MusicAlbum
    date published: 2024-10-11
  genre: classical
  genre: german-romanticism
  genre: classical-piano
  genre: late-romantic-era
  genre: chamber-music
  genre: orchestral
  isrc code: DEB331981502
  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: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960138
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331981502
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1ef7bcf5115377e7fd3744f4be63aeea0c42e9c0efaf438ead1417bf023830. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331981502 — a six-check JSON result.
    date published: 2026-07-29T19:35:34Z
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    additional property: Tempo (BPM)
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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: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Mode Name
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track: Violin Sonata No. 1 in G Major, Op. 78: III. Allegro molto moderato
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  duration: PT8M54S
  duration ms: 534968
  explicit: false
  by artist: Johannes Brahms
  by artist: Yuuko Shiokawa
  by artist: András Schiff
  in album: Brahms & Schumann: Violin Sonatas
    type: MusicAlbum
    date published: 2024-10-11
  genre: classical
  genre: german-romanticism
  genre: classical-piano
  genre: late-romantic-era
  genre: chamber-music
  genre: orchestral
  isrc code: DEB331981503
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Violin Sonata No. 1 in G Major, Op. 78: III. Allegro molto moderato
track: Violin Sonata No. 2 in D Minor, Op. 121: I. Ziemlich langsam - Lebhaft
track: Violin Sonata No. 2 in D Minor, Op. 121: II. Sehr lebhaft
track: Violin Sonata No. 2 in D Minor, Op. 121: III. Leise, einfach
track: Violin Sonata No. 2 in D Minor, Op. 121: IV. Bewegt

CopyrightID
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CopyrightStatus
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CopyrightRegisteredAt
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CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x7dc84324cda3525527ee24fb2f40a4a38bf3bc83da118a35500e128e52bb0c95

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 960240

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960240

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331981503

OTSTimestamp
type: PropertyValue
value: 2026-07-30T09:57:33Z

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 0x7dc84324cda3525527ee24fb2f40a4a38bf3bc83da118a35500e128e52bb0c95. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331981503 — a six-check JSON result.
date published: 2026-07-30T09:57:33Z

Violin Sonata No. 1 in G Major, Op. 78: III. Allegro molto moderato
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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Violin Sonata No. 2 in D Minor, Op. 121: I. Ziemlich langsam - Lebhaft
type: MusicRecording
duration: PT13M12S
duration ms: 792000
explicit: false
by artist: Robert Schumann
by artist: Yuuko Shiokawa
by artist: András Schiff
in album: Brahms & Schumann: Violin Sonatas
  type: MusicAlbum
  date published: 2024-10-11
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEB331981504
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
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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/DEB331981504
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c0fdf38bf749c1c713800ab6a071627bdc0d225b0979b7ee18de33f15961c2. 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/DEB331981504 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Violin Sonata No. 2 in D Minor, Op. 121: I. Ziemlich langsam - Lebhaft
  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: Key Name
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Violin Sonata No. 2 in D Minor, Op. 121: II. Sehr lebhaft
type: MusicRecording
duration: PT4M41S
duration ms: 281000
explicit: false
by artist: Robert Schumann
by artist: Yuuko Shiokawa
by artist: András Schiff
in album: Brahms & Schumann: Violin Sonatas
  type: MusicAlbum
  date published: 2024-10-11
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEB331981505
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
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331981505
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be48b933fb4359fb5a80822708cedc4520dfe71c9cc2cebb242219a5d8b5a5b. 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/DEB331981505 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Violin Sonata No. 2 in D Minor, Op. 121: II. Sehr lebhaft
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Acousticness
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Violin Sonata No. 2 in D Minor, Op. 121: III. Leise, einfach
type: MusicRecording
duration: PT5M58S
duration ms: 358000
explicit: false
by artist: Robert Schumann
by artist: Yuuko Shiokawa
by artist: András Schiff
in album: Brahms & Schumann: Violin Sonatas
  type: MusicAlbum
  date published: 2024-10-11
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEB331981506
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
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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
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d84b9fd5f0d603ce58bf80c5ded879af76a3b8ec345825470fd6e479d76ec5. 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/DEB331981506 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Violin Sonata No. 2 in D Minor, Op. 121: III. Leise, einfach
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by artist: Yuuko Shiokawa
by artist: András Schiff
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genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee47216ca6b439ec84a64693efa00c3ab325b4ae055d8a98ea7eb09057df228a. 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/DEB331981507 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
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Bach - Busoni - Beethoven: Violin Sonatas
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date published: 2017-10-27
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  by artist: András Schiff
  by artist: Yuuko Shiokawa
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    type: MusicAlbum
    date published: 2017-10-27
  genre: classical
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  genre: early-music
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  genre: chamber-music
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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 0x914f9a441cc427bfc82865d370c0df04b98eb79be7e5e3630e22f5e9bad0d33a. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/DEB331551001 — a six-check JSON result.
    date published: 2026-07-07T13:25:45Z
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  by artist: Johann Sebastian Bach
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  genre: chamber-music
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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: 2026-07-30T12:45:34Z
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  by artist: András Schiff
  by artist: Yuuko Shiokawa
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  genre: early-music
  genre: baroque
  genre: chamber-music
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  additional property: OTSBitcoinBlock
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  subject of: OpenTimestamps Proof of Existence
  audio: Violin Sonata No. 3 in E Major, BWV 1016: III. Adagio ma non tanto
track: Violin Sonata No. 3 in E Major, BWV 1016: IV. Allegro
track: Violin Sonata No. 2 in E Minor, BV 244: I. Langsam –
track: Violin Sonata No. 2 in E Minor, BV 244: II. Presto –
track: Violin Sonata No. 2 in E Minor, BV 244: IIIa. Andante, più tosto grave
track: Violin Sonata No. 2 in E Minor, BV 244: IIIb. Andante con moto
track: Violin Sonata No. 10 in G Major, Op. 96: I. Allegro moderato
track: Violin Sonata No. 10 in G Major, Op. 96: II. Adagio espressivo
track: Violin Sonata No. 10 in G Major, Op. 96: III. Scherzo. Allegro
track: Violin Sonata No. 10 in G Major, Op. 96: IV. Poco allegretto

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CopyrightRegisteredAt
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/957064

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331551003

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 0xa90d6f27cd2ddc5b3a059e6914e8cbaa6ec35cd302a3b11eb68fae9b290a9f5e. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331551003 — a six-check JSON result.
date published: 2026-07-07T16:43:08Z

Violin Sonata No. 3 in E Major, BWV 1016: III. Adagio ma non tanto
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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: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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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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Violin Sonata No. 3 in E Major, BWV 1016: IV. Allegro
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duration: PT4M4S
duration ms: 244826
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by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Yuuko Shiokawa
in album: Bach - Busoni - Beethoven: Violin Sonatas
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  date published: 2017-10-27
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEB331551004
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aec2bebde8235109a3e51e4313ccbc4952dbf0b7245a36f7918665ee42dc391. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331551004 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
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Violin Sonata No. 2 in E Minor, BV 244: I. Langsam –
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by artist: András Schiff
by artist: Yuuko Shiokawa
in album: Bach - Busoni - Beethoven: Violin Sonatas
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  date published: 2017-10-27
genre: classical-piano
isrc code: DEB331551005
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
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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: 2026-07-30T09:37:10Z
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Violin Sonata No. 2 in E Minor, BV 244: II. Presto –
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by artist: András Schiff
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Violin Sonata No. 2 in E Minor, BV 244: IIIa. Andante, più tosto grave
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by artist: András Schiff
by artist: Yuuko Shiokawa
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Violin Sonata No. 2 in E Minor, BV 244: IIIb. Andante con moto
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by artist: Yuuko Shiokawa
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:37:10Z
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Violin Sonata No. 10 in G Major, Op. 96: I. Allegro moderato
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by artist: Yuuko Shiokawa
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T09:50:11Z
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Violin Sonata No. 10 in G Major, Op. 96: II. Adagio espressivo
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Violin Sonata No. 10 in G Major, Op. 96: III. Scherzo. Allegro
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genre: classical
genre: classical-piano
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
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Violin Sonata No. 10 in G Major, Op. 96: IV. Poco allegretto
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genre: classical
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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: 2026-07-31T15:59:18Z
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Dvořák: Violin Concerto in A Minor, Op. 53 & Symphony No. 7 in D Minor, Op. 70
type: MusicAlbum
date published: 2016-01-01

Schubert: Fantasien D. 760, D. 934
type: MusicAlbum
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-29T23:20:38Z
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track: Fantasia for Violin and Piano in C Major, D. 934, Op. posth. 159
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-29T19:35:34Z
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Haydn: Piano Trios Nos. 25, 40, 42 & 44
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Haydn: Piano Trios Nos. 27, 41, 43 & 45
type: MusicAlbum
date published: 1995-10-02

Mozart: Violin Sonatas Nos. 21, 27 & 32; Six Variations on "Hélas, j'ai perdu mon amant"
type: MusicAlbum
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Schumann: Violin Sonata No. 2 in D Minor, Op. 121: II. Sehr lebhaft
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Brahms: Violin Sonata No. 1 in G Major, Op. 78: II. Adagio
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T02:30:29Z
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Bach: Complete Keyboard Concertos
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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track: Concerto for Flute, Violin, Harpsichord, and Strings in A minor, BWV 1044: 1. Allegro
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track: Keyboard Concerto in A Major, BWV 1055: I. Allegro moderato - Performed on Piano
track: Italian Concerto, BWV 971: II. Andante
track: Concerto for Flute, Violin, Harpsichord, and Strings in A minor, BWV 1044: 2. Adagio ma non tanto e dolce
track: Keyboard Concerto in D Minor, BWV 1052: II. Adagio - Performed on Piano
track: Keyboard Concerto in A Major, BWV 1055: II. Larghetto - Performed on Piano
track: Italian Concerto, BWV 971: III. Presto
track: Concerto for Flute, Violin, Harpsichord, and Strings in A minor, BWV 1044: 3. Tempo di Allabreve
track: Keyboard Concerto in D Minor, BWV 1052: III. Allegro - Performed on Piano
track: Keyboard Concerto in A Major, BWV 1055: III. Allegro ma non tanto - Performed on Piano
track: Concerto for 2 Harpsichords in C Minor, BWV 1060: I. Allegro - Performed on 2 Pianos
track: Concerto for 3 Harpsichords, Strings, and Continuo No. 1 in D minor, BWV 1063: 1. (Allegro)
track: Concerto for Keyboard, Strings, and Basso continuo No. 2 in E, BWV 1053: 1. (Allegro)
track: Keyboard Concerto in F Minor, BWV 1056: I. [Allegro] - Performed on Piano
track: Concerto for 2 Harpsichords in C Minor, BWV 1060: II. Adagio - Performed on 2 Pianos
track: Concerto for 3 Harpsichords, Strings, and Continuo No. 1 in D minor, BWV 1063: 2. Alla siciliana
track: Concerto for Keyboard, Strings, and Basso continuo No. 2 in E, BWV 1053: 2. Siciliano
track: Keyboard Concerto in F Minor, BWV 1056: II. Largo - Performed on Piano
track: Concerto for 2 Harpsichords in C Minor, BWV 1060: III. Finale. Allegro - Performed on 2 Pianos
track: Concerto for 3 Harpsichords, Strings, and Continuo No. 1 in D minor, BWV 1063: 3. Allegro
track: Concerto for Keyboard, Strings, and Basso continuo No. 2 in E, BWV 1053: 3. Allegro
track: Keyboard Concerto in F Minor, BWV 1056: III. Presto - Performed on Piano
track: Concerto for 2 Harpsichords, Strings, and Continuo in C, BWV 1061: 1. (Allegro)
track: Concerto for 3 Harpsichords, Strings, and Continuo No. 2 in C, BWV 1064: 1. (Allegro)
track: Concerto for Keyboard, Strings, and Basso continuo No. 3 in D, BWV 1054: 1. --
track: Concerto for Harpsichord, 2 Recorders, Strings, and Continuo No. 6 in F, BWV 1057: 1. --
track: Concerto for 2 Harpsichords, Strings, and Continuo in C, BWV 1061: 2. Adagio
track: Concerto for 3 Harpsichords, Strings, and Continuo No. 2 in C, BWV 1064: 2. Adagio
track: Concerto for Keyboard, Strings, and Basso continuo No. 3 in D, BWV 1054: 2. Adagio e piano sempre
track: Concerto for Harpsichord, 2 Recorders, Strings, and Continuo No. 6 in F, BWV 1057: 2. Andante
track: Concerto for 2 Harpsichords, Strings, and Continuo in C, BWV 1061: 3. Vivace
track: Concerto for 3 Harpsichords, Strings, and Continuo No. 2 in C, BWV 1064: 3. Allegro
track: Concerto for Keyboard, Strings, and Basso continuo No. 3 in D, BWV 1054: 3. Allegro
track: Concerto for Harpsichord, 2 Recorders, Strings, and Continuo No. 6 in F, BWV 1057: 3. Allegro assai
track: Concerto for 2 Harpsichords, Strings, and Continuo in C minor, BWV 1062: 1. (Allegro)
track: Concerto for Harpsichord, Strings, and Continuo No. 7 in G minor, BWV 1058: 1. --
track: Concerto for Harpsichord, Strings, and Continuo No. 7 in G minor, BWV 1058: 2. Andante
track: Concerto for 2 Harpsichords, Strings, and Continuo in C minor, BWV 1062: 2. Andante e piano
track: Concerto for Harpsichord, Strings, and Continuo No. 7 in G minor, BWV 1058: 3. Allegro assai
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date published: 2026-07-02T03:55:08Z

Keyboard Concerto in D Minor, BWV 1052: I. Allegro - Performed on Piano
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Keyboard Concerto in A Major, BWV 1055: I. Allegro moderato - Performed on Piano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T13:21:01Z
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Italian Concerto, BWV 971: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:09:47Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T00:26:26Z
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Keyboard Concerto in D Minor, BWV 1052: II. Adagio - Performed on Piano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:07:00Z
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Keyboard Concerto in A Major, BWV 1055: II. Larghetto - Performed on Piano
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by artist: András Schiff
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:50:41Z
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Italian Concerto, BWV 971: III. Presto
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by artist: András Schiff
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto for Flute, Violin, Harpsichord, and Strings in A minor, BWV 1044: 3. Tempo di Allabreve
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by artist: András Schiff
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by artist: Yuuko Shiokawa
by artist: Camerata Bern
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Keyboard Concerto in D Minor, BWV 1052: III. Allegro - Performed on Piano
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by artist: András Schiff
by artist: Chamber Orchestra of Europe
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T15:22:21Z
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Keyboard Concerto in A Major, BWV 1055: III. Allegro ma non tanto - Performed on Piano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T22:48:59Z
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Concerto for 2 Harpsichords in C Minor, BWV 1060: I. Allegro - Performed on 2 Pianos
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T23:29:40Z
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Concerto for 3 Harpsichords, Strings, and Continuo No. 1 in D minor, BWV 1063: 1. (Allegro)
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079311941
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 0x8ed0aee036a1a52c522c68484fede7a15df9d69455c6aaf374279cc351513929. 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/GBF079311941 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto for 3 Harpsichords, Strings, and Continuo No. 1 in D minor, BWV 1063: 1. (Allegro)
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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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Concerto for Keyboard, Strings, and Basso continuo No. 2 in E, BWV 1053: 1. (Allegro)
type: MusicRecording
duration: PT8M11S
duration ms: 491493
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Chamber Orchestra of Europe
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF078941204
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/960144
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078941204
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 0x8d951346bf40b4c6bdd9bc986a1fd6e088bde0d86cd0b65d31987c5a15a273d8. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBF078941204 — a six-check JSON result.
  date published: 2026-07-29T21:09:47Z
audio: Concerto for Keyboard, Strings, and Basso continuo No. 2 in E, BWV 1053: 1. (Allegro)
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Keyboard Concerto in F Minor, BWV 1056: I. [Allegro] - Performed on Piano
type: MusicRecording
duration: PT3M33S
duration ms: 213000
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Chamber Orchestra of Europe
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF078941213
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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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078941213
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 0x1942a324ba4cd8b5f8ef584f9ec970745d22f83ecb51b789043a92a889607408. 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/GBF078941213 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Keyboard Concerto in F Minor, BWV 1056: I. [Allegro] - Performed on Piano
  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: 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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Concerto for 2 Harpsichords in C Minor, BWV 1060: II. Adagio - Performed on 2 Pianos
type: MusicRecording
duration: PT6M11S
duration ms: 371413
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Peter Serkin
by artist: Camerata Bern
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF079212422
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd22c43c7168d3c14126c6e209bd28000eed4047635f98f9815f98b4274a9ecbc
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079212422
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 0xd22c43c7168d3c14126c6e209bd28000eed4047635f98f9815f98b4274a9ecbc. 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/GBF079212422 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto for 2 Harpsichords in C Minor, BWV 1060: II. Adagio - Performed on 2 Pianos
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  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: -33.09
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Concerto for 3 Harpsichords, Strings, and Continuo No. 1 in D minor, BWV 1063: 2. Alla siciliana
type: MusicRecording
duration: PT4M46S
duration ms: 286493
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Peter Serkin
by artist: Bruno Canino
by artist: Camerata Bern
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF079311942
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:16:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14d6d80214bcab2eefc68cc186ba5d3a288e119a3eb139eb2e875ea330b359d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079311942
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 0x14d6d80214bcab2eefc68cc186ba5d3a288e119a3eb139eb2e875ea330b359d2. 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/GBF079311942 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto for 3 Harpsichords, Strings, and Continuo No. 1 in D minor, BWV 1063: 2. Alla siciliana
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Mode Name
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Concerto for Keyboard, Strings, and Basso continuo No. 2 in E, BWV 1053: 2. Siciliano
type: MusicRecording
duration: PT4M9S
duration ms: 249173
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Chamber Orchestra of Europe
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF078941205
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T14:02:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1ca820ab0c310dd5dac17ad97e502dc372a8b52a401b62e06fcff77c9d2fbb12
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960117
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078941205
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T14:28:24Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca820ab0c310dd5dac17ad97e502dc372a8b52a401b62e06fcff77c9d2fbb12. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078941205 — a six-check JSON result.
  date published: 2026-07-29T14:28:24Z
audio: Concerto for Keyboard, Strings, and Basso continuo No. 2 in E, BWV 1053: 2. Siciliano
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    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: Valence (Positivity)
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Keyboard Concerto in F Minor, BWV 1056: II. Largo - Performed on Piano
type: MusicRecording
duration: PT2M56S
duration ms: 176160
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Chamber Orchestra of Europe
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF078941214
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T10:58:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2887ff4a47712a42bb743cbdb95312b15591576eda5c93cd230a780ea26b3752
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960095
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078941214
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:07:37Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2887ff4a47712a42bb743cbdb95312b15591576eda5c93cd230a780ea26b3752. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078941214 — a six-check JSON result.
  date published: 2026-07-29T11:07:37Z
audio: Keyboard Concerto in F Minor, BWV 1056: II. Largo - Performed on Piano
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.021
  additional property: Musical Key
    type: PropertyValue
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Concerto for 2 Harpsichords in C Minor, BWV 1060: III. Finale. Allegro - Performed on 2 Pianos
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by artist: András Schiff
by artist: Peter Serkin
by artist: Camerata Bern
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genre: classical
genre: classical-piano
genre: early-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T23:42:34Z
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Concerto for 3 Harpsichords, Strings, and Continuo No. 1 in D minor, BWV 1063: 3. Allegro
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by artist: András Schiff
by artist: Peter Serkin
by artist: Bruno Canino
by artist: Camerata Bern
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto for Keyboard, Strings, and Basso continuo No. 2 in E, BWV 1053: 3. Allegro
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by artist: András Schiff
by artist: Chamber Orchestra of Europe
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T06:39:12Z
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Keyboard Concerto in F Minor, BWV 1056: III. Presto - Performed on Piano
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by artist: András Schiff
by artist: Chamber Orchestra of Europe
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto for 2 Harpsichords, Strings, and Continuo in C, BWV 1061: 1. (Allegro)
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by artist: András Schiff
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by artist: Camerata Bern
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T00:53:20Z
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Concerto for 3 Harpsichords, Strings, and Continuo No. 2 in C, BWV 1064: 1. (Allegro)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto for Keyboard, Strings, and Basso continuo No. 3 in D, BWV 1054: 1. --
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  value: https://explorer.copyrightchains.com/tx/0xa8488663232d8c619cfc102aa88729f7a9f3bc30cf1fe42f3f415457dba4778c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078941207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8488663232d8c619cfc102aa88729f7a9f3bc30cf1fe42f3f415457dba4778c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078941207 — a six-check JSON result.
  date published: 2026-07-06T06:56:49Z
audio: Concerto for Keyboard, Strings, and Basso continuo No. 3 in D, BWV 1054: 1. --
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  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.897
  additional property: Musical Key
    type: PropertyValue
    value: 2
  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: 0.494
  additional property: Energy
    type: PropertyValue
    value: 0.257
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.921
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.676
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.891
  additional property: Key Name
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    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Concerto for Harpsichord, 2 Recorders, Strings, and Continuo No. 6 in F, BWV 1057: 1. --
type: MusicRecording
duration: PT7M8S
duration ms: 428160
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Thierry Fischer
by artist: Catherine Touraire-Stutz
by artist: Chamber Orchestra of Europe
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF078941216
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T12:51:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa1b9abbd13566250c852012cc18c011bf9a8922cbfa075ec773d7da97976724e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960108
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960108
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078941216
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T13:09:35Z
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 0xa1b9abbd13566250c852012cc18c011bf9a8922cbfa075ec773d7da97976724e. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBF078941216 — a six-check JSON result.
  date published: 2026-07-29T13:09:35Z
audio: Concerto for Harpsichord, 2 Recorders, Strings, and Continuo No. 6 in F, BWV 1057: 1. --
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.333
  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: 0.435
  additional property: Energy
    type: PropertyValue
    value: 0.216
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.946
  additional property: Liveness
    type: PropertyValue
    value: 0.166
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.743
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.838
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Concerto for 2 Harpsichords, Strings, and Continuo in C, BWV 1061: 2. Adagio
type: MusicRecording
duration: PT5M44S
duration ms: 344906
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Peter Serkin
by artist: Camerata Bern
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF079212432
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:00:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5dd1db1ecd9f7391559fef45a459bb2c615c5ad00537a3fb7efbbd4c565bf292
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/GBF079212432
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 0x5dd1db1ecd9f7391559fef45a459bb2c615c5ad00537a3fb7efbbd4c565bf292. 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/GBF079212432 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto for 2 Harpsichords, Strings, and Continuo in C, BWV 1061: 2. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 96.634
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.403
  additional property: Energy
    type: PropertyValue
    value: 0.019
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.917
  additional property: Liveness
    type: PropertyValue
    value: 0.057
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.272
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.363
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Concerto for 3 Harpsichords, Strings, and Continuo No. 2 in C, BWV 1064: 2. Adagio
type: MusicRecording
duration: PT6M40S
duration ms: 400226
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Peter Serkin
by artist: Bruno Canino
by artist: Camerata Bern
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF079311952
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:38:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4d9569a76bdb5a001346f84d380d6d45b829e58e7e869359959481c2116de7df
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/GBF079311952
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 0x4d9569a76bdb5a001346f84d380d6d45b829e58e7e869359959481c2116de7df. 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/GBF079311952 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto for 3 Harpsichords, Strings, and Continuo No. 2 in C, BWV 1064: 2. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 89.766
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.036
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.925
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.167
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.129
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Concerto for Keyboard, Strings, and Basso continuo No. 3 in D, BWV 1054: 2. Adagio e piano sempre
type: MusicRecording
duration: PT5M46S
duration ms: 346173
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Chamber Orchestra of Europe
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF078941208
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T16:57:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1da397cd4e3920364239253d4a9a532626ff64bb54203c12ba7d6a710ab53b33
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/GBF078941208
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 0x1da397cd4e3920364239253d4a9a532626ff64bb54203c12ba7d6a710ab53b33. 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/GBF078941208 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto for Keyboard, Strings, and Basso continuo No. 3 in D, BWV 1054: 2. Adagio e piano sempre
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.361
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.311
  additional property: Energy
    type: PropertyValue
    value: 0.037
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.869
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.098
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.626
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Concerto for Harpsichord, 2 Recorders, Strings, and Continuo No. 6 in F, BWV 1057: 2. Andante
type: MusicRecording
duration: PT3M53S
duration ms: 233506
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Thierry Fischer
by artist: Catherine Touraire-Stutz
by artist: Chamber Orchestra of Europe
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF078941217
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:49:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b9ffcd3844514f420c29fe4ab34122b59db4e7559c030b7a44ff82a388b301c
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/GBF078941217
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 0x9b9ffcd3844514f420c29fe4ab34122b59db4e7559c030b7a44ff82a388b301c. 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/GBF078941217 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto for Harpsichord, 2 Recorders, Strings, and Continuo No. 6 in F, BWV 1057: 2. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.674
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.277
  additional property: Energy
    type: PropertyValue
    value: 0.101
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.794
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.149
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.893
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Concerto for 2 Harpsichords, Strings, and Continuo in C, BWV 1061: 3. Vivace
type: MusicRecording
duration: PT5M37S
duration ms: 337426
explicit: false
by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Peter Serkin
by artist: Camerata Bern
in album: Bach: Complete Keyboard Concertos
  type: MusicAlbum
  date published: 2010-01-01
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBF079212433
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T06:44:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6eac671f54779b1c8cf89e4fcba8999012afb09a7bab1851ecd921ec2041237b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960220
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960220
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079212433
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:28:30Z
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: 2026-07-30T07:28:30Z
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Concerto for 3 Harpsichords, Strings, and Continuo No. 2 in C, BWV 1064: 3. Allegro
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by artist: András Schiff
by artist: Peter Serkin
by artist: Bruno Canino
by artist: Camerata Bern
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genre: early-music
genre: baroque
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T10:06:30Z
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Concerto for Keyboard, Strings, and Basso continuo No. 3 in D, BWV 1054: 3. Allegro
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by artist: András Schiff
by artist: Chamber Orchestra of Europe
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genre: classical
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genre: early-music
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto for Harpsichord, 2 Recorders, Strings, and Continuo No. 6 in F, BWV 1057: 3. Allegro assai
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by artist: Johann Sebastian Bach
by artist: András Schiff
by artist: Thierry Fischer
by artist: Catherine Touraire-Stutz
by artist: Chamber Orchestra of Europe
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genre: classical
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genre: early-music
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T20:41:57Z
audio: Concerto for Harpsichord, 2 Recorders, Strings, and Continuo No. 6 in F, BWV 1057: 3. Allegro assai
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Concerto for 2 Harpsichords, Strings, and Continuo in C minor, BWV 1062: 1. (Allegro)
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by artist: András Schiff
by artist: Peter Serkin
by artist: Camerata Bern
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T06:57:05Z
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Concerto for Harpsichord, Strings, and Continuo No. 7 in G minor, BWV 1058: 1. --
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by artist: András Schiff
by artist: Chamber Orchestra of Europe
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:43:08Z
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Concerto for Harpsichord, Strings, and Continuo No. 7 in G minor, BWV 1058: 2. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto for 2 Harpsichords, Strings, and Continuo in C minor, BWV 1062: 2. Andante e piano
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subject of: OpenTimestamps Proof of Existence
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Concerto for Harpsichord, Strings, and Continuo No. 7 in G minor, BWV 1058: 3. Allegro assai
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subject of: OpenTimestamps Proof of Existence
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T15:42:38Z
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'December' - A Season of Classics: Mozart
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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    date published: 2026-07-08T03:20:19Z
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track: Minuet in G Major, K.15y
track: Symphony No. 41 In C, K.551 -: 4. Molto allegro
track: Minuet in C Major, K.15f
track: Minuet in G Major, K.15c
track: Contredanse in G Major, K.15e

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Divertimento in C, K.188: 5. Menuetto
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  value: https://blockstream.info/api/block-height/960266
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071601200
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:44:50Z
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 0x6e99237f81fafb746007647d15cfd89dc26e14f99328ac0b22bea22feaef26af. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBF071601200 — a six-check JSON result.
  date published: 2026-07-30T14:44:50Z
audio: Minuet in G Major, K.15y
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.855
  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: 0.351
  additional property: Energy
    type: PropertyValue
    value: 0.349
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.707
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.678
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.052
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 41 In C, K.551 -: 4. Molto allegro
type: MusicRecording
duration: PT1M7S
duration ms: 67733
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Wiener Philharmoniker
by artist: Riccardo Muti
in album: 'December' - A Season of Classics: Mozart
  type: MusicAlbum
  date published: 2024-12-17
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA509309040
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:54:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x23b87556e85ddb041cd7e3ea54e439094a8585203003e530c391b600d1d93bf9
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/NLA509309040
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 0x23b87556e85ddb041cd7e3ea54e439094a8585203003e530c391b600d1d93bf9. 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/NLA509309040 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 41 In C, K.551 -: 4. Molto allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.15
  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: 0.352
  additional property: Energy
    type: PropertyValue
    value: 0.355
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.889
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.911
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.608
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.419
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Minuet in C Major, K.15f
type: MusicRecording
duration: PT1M4S
duration ms: 64933
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Erik Smith
in album: 'December' - A Season of Classics: Mozart
  type: MusicAlbum
  date published: 2024-12-17
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: NLA507613703
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T22:28:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b096d5b733b21a16c00454ebf04b83b3b3695cf64b522d70712f65b70001d53
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507613703
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
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 0x8b096d5b733b21a16c00454ebf04b83b3b3695cf64b522d70712f65b70001d53. 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/NLA507613703 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Minuet in C Major, K.15f
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.661
  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: 0.457
  additional property: Energy
    type: PropertyValue
    value: 0.404
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.866
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.027
  additional property: Liveness
    type: PropertyValue
    value: 0.319
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.544
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.838
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Minuet in G Major, K.15c
type: MusicRecording
duration: PT0M54S
duration ms: 54880
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Florian Birsak
in album: 'December' - A Season of Classics: Mozart
  type: MusicAlbum
  date published: 2024-12-17
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF071601090
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T23:19:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x15ac93b588c60c0124eb45df57184e01401ffb52c35b57acacf57f03d678fa52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071601090
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
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 0x15ac93b588c60c0124eb45df57184e01401ffb52c35b57acacf57f03d678fa52. 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/GBF071601090 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Minuet in G Major, K.15c
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.385
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.409
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.586
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.101
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.698
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.822
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Contredanse in G Major, K.15e
type: MusicRecording
duration: PT0M37S
duration ms: 37293
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Florian Birsak
in album: 'December' - A Season of Classics: Mozart
  type: MusicAlbum
  date published: 2024-12-17
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF071601110
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:46:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x355906c31b8ce7d7d25797015f25feb7f84ed8c030bad76a83c3531ab7ad792e
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/GBF071601110
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 0x355906c31b8ce7d7d25797015f25feb7f84ed8c030bad76a83c3531ab7ad792e. 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/GBF071601110 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Contredanse in G Major, K.15e
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.823
  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: 0.482
  additional property: Energy
    type: PropertyValue
    value: 0.377
  additional property: Speechiness
    type: PropertyValue
    value: 0.078
  additional property: Acousticness
    type: PropertyValue
    value: 0.522
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.065
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.458
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.156
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Study Schubert
type: MusicAlbum
date published: 2021-01-18
track: Serenade, D. 889 (Arr. for Solo Piano)
  type: MusicRecording
  duration: PT5M24S
  duration ms: 324200
  explicit: false
  by artist: Franz Schubert
  by artist: Dmitri Bashkirov
  in album: Study Schubert
    type: MusicAlbum
    date published: 2021-01-18
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: FRZ209301200
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T18:54:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x300f07dba382d46a5498a7f9bcfc76b4d35baada5468972d3f03607911988a2d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956889
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956889
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209301200
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300f07dba382d46a5498a7f9bcfc76b4d35baada5468972d3f03607911988a2d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209301200 — a six-check JSON result.
    date published: 2026-07-06T06:56:49Z
  audio: Serenade, D. 889 (Arr. for Solo Piano)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 69.91
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.339
    additional property: Energy
      type: PropertyValue
      value: 0.017
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.995
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.916
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -28.918
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Relax Schubert
type: MusicAlbum
date published: 2021-01-23

Janácek: Concertino; On An Overgrown Path; Violin Sonata
type: MusicAlbum
date published: 1993-11-01
track: On an Overgrown Path (Po zarostlém chodnicku), JW 8/17 / Book 1: 1. Nase vecery (Our Evenings)
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186133
  explicit: false
  by artist: Leoš Janáček
  by artist: András Schiff
  in album: Janácek: Concertino; On An Overgrown Path; Violin Sonata
    type: MusicAlbum
    date published: 1993-11-01
  genre: classical
  genre: czech-classical
  genre: early-modern-classical
  genre: contemporary-classical
  genre: post-romantic-era
  isrc code: GBF079242301
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:14:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x849d16eb5163d9330b3db23576d334b9b3015c477ebfe284cca2fdc3b78a95d0
  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/GBF079242301
  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 0x849d16eb5163d9330b3db23576d334b9b3015c477ebfe284cca2fdc3b78a95d0. 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/GBF079242301 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: On an Overgrown Path (Po zarostlém chodnicku), JW 8/17 / Book 1: 1. Nase vecery (Our Evenings)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 162.218
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.231
    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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      value: 0.993
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.931
    additional property: Liveness
      type: PropertyValue
      value: 0.077
    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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track: On an Overgrown Path (Po zarostlém chodnicku), JW 8/17 / Book 1: 7. Dobrou noc! (Good Night!)
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  duration: PT2M59S
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  by artist: Leoš Janáček
  by artist: András Schiff
  in album: Janácek: Concertino; On An Overgrown Path; Violin Sonata
    type: MusicAlbum
    date published: 1993-11-01
  genre: classical
  genre: czech-classical
  genre: early-modern-classical
  genre: contemporary-classical
  genre: post-romantic-era
  isrc code: GBF079242307
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x507412ea78e578c53bd6f02a23505a9cf2518f1c200ad04b56c4c329bbeb77cd
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957122
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079242307
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:39:04Z
  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 0x507412ea78e578c53bd6f02a23505a9cf2518f1c200ad04b56c4c329bbeb77cd. 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/GBF079242307 — a six-check JSON result.
    date published: 2026-07-08T03:39:04Z
  audio: On an Overgrown Path (Po zarostlém chodnicku), JW 8/17 / Book 1: 7. Dobrou noc! (Good Night!)
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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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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type: MusicAlbum
date published: 2019-11-30
track: Piano Trio in C Major, K. 548: II. Andante cantabile
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  duration: PT8M27S
  duration ms: 507826
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Wiener Schubert Trio
  in album: Mozart: Piano Trios
    type: MusicAlbum
    date published: 2019-11-30
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: GBAYC9001824
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T08:33:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xca7641be2630996f32de2594a46dd95f0a8ecccdddbe6e2e4210c598dd323473
  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/GBAYC9001824
  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 0xca7641be2630996f32de2594a46dd95f0a8ecccdddbe6e2e4210c598dd323473. 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/GBAYC9001824 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Piano Trio in C Major, K. 548: II. Andante cantabile
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.076
    additional property: Musical Key
      type: PropertyValue
      value: 5
    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: 0.278
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.147
    additional property: Loudness (dB)
      type: PropertyValue
      value: -31.742
    additional property: Key Name
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    additional property: Mode Name
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Mozart: Clarinet Trio, K. 498 "Kegelstatt", Piano Trios, K. 502 & K. 542
type: MusicAlbum
date published: 1999-01-01
track: Mozart: Piano Trio No. 3 in B-Flat Major, Op. 15 No. 1, K. 502: II. Larghetto
  type: MusicRecording
  duration: PT7M42S
  duration ms: 462826
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: András Schiff
  by artist: Miklós Perényi
  by artist: Yuuko Shiokawa
  in album: Mozart: Clarinet Trio, K. 498 "Kegelstatt", Piano Trios, K. 502 & K. 542
    type: MusicAlbum
    date published: 1999-01-01
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: DEA809500502
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T12:03:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x80dd2eb457468ffe8bba840bce86449c9505af03234ef764d3a7a9a172f5c74f
  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/DEA809500502
  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 0x80dd2eb457468ffe8bba840bce86449c9505af03234ef764d3a7a9a172f5c74f. 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/DEA809500502 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Mozart: Piano Trio No. 3 in B-Flat Major, Op. 15 No. 1, K. 502: II. Larghetto
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.004
    additional property: Musical Key
      type: PropertyValue
      value: 2
    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
      type: PropertyValue
      value: 0.389
    additional property: Liveness
      type: PropertyValue
      value: 0.137
    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -28.568
    additional property: Key Name
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      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Mozart: Piano Trio No. 3 in B-Flat Major, Op. 15 No. 1, K. 502: III. Allegretto
  type: MusicRecording
  duration: PT6M31S
  duration ms: 391573
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: András Schiff
  by artist: Miklós Perényi
  by artist: Yuuko Shiokawa
  in album: Mozart: Clarinet Trio, K. 498 "Kegelstatt", Piano Trios, K. 502 & K. 542
    type: MusicAlbum
    date published: 1999-01-01
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: DEA809500503
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T07:20:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd2abde0ff0c3df5358eb70e3eac9d17be59653b354b3315d73dfd93ff0d1efc0
  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/DEA809500503
  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 0xd2abde0ff0c3df5358eb70e3eac9d17be59653b354b3315d73dfd93ff0d1efc0. 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/DEA809500503 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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    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
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.654
    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
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    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Mozart: Trio for Clarinet, Viola and Piano in E-Flat Major, K. 498 "Kegelstatt": I. Andante
  type: MusicRecording
  duration: PT5M56S
  duration ms: 356506
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: András Schiff
  by artist: Elmar Schmid
  by artist: Erich Höbarth
  in album: Mozart: Clarinet Trio, K. 498 "Kegelstatt", Piano Trios, K. 502 & K. 542
    type: MusicAlbum
    date published: 1999-01-01
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: DEA809500601
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Mozart: Trio for Clarinet, Viola and Piano in E-Flat Major, K. 498 "Kegelstatt": I. Andante
track: Mozart: Trio for Clarinet, Viola and Piano in E-Flat Major, K. 498 "Kegelstatt": II. Menuetto
track: Mozart: Trio for Clarinet, Viola and Piano in E-Flat Major, K. 498 "Kegelstatt": III. Rondeau. Allegretto

CopyrightID
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CopyrightStatus
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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x0ffd109629d3c75e18d9021e524346b53107dd77a435fb88181af5592c3b77d5

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 960317

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960317

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809500601

OTSTimestamp
type: PropertyValue
value: 2026-07-30T21:35:24Z

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 0x0ffd109629d3c75e18d9021e524346b53107dd77a435fb88181af5592c3b77d5. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809500601 — a six-check JSON result.
date published: 2026-07-30T21:35:24Z

Mozart: Trio for Clarinet, Viola and Piano in E-Flat Major, K. 498 "Kegelstatt": I. Andante
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 147.354
additional property: Musical Key
  type: PropertyValue
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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
  type: PropertyValue
  value: Major

Mozart: Trio for Clarinet, Viola and Piano in E-Flat Major, K. 498 "Kegelstatt": II. Menuetto
type: MusicRecording
duration: PT5M53S
duration ms: 353946
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: András Schiff
by artist: Elmar Schmid
by artist: Erich Höbarth
in album: Mozart: Clarinet Trio, K. 498 "Kegelstatt", Piano Trios, K. 502 & K. 542
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA809500602
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:57:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa249cb7fd133a5f2b819245792b36fcaaf37a996fb9c935752e5ef15b04be182
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960485
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960485
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809500602
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 0xa249cb7fd133a5f2b819245792b36fcaaf37a996fb9c935752e5ef15b04be182. 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/DEA809500602 — a six-check JSON result.
  date published: 2026-08-01T00:10:46Z
audio: Mozart: Trio for Clarinet, Viola and Piano in E-Flat Major, K. 498 "Kegelstatt": II. Menuetto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.994
  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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