Ewald Demeyere
type: MusicGroup
genre: chamber music
description: Ewald Demeyere (born 1974) is a Belgian harpsichordist, conductor and music theorist. He is known as an expert in partimento realization and counterpoint.On Fedele Fenaroli’s Pedagogy: An Update (in:
popularity: 13
followers: 171
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87a7774e73059e6467456794dd1c1064891c49ca8108c90358dcb707ae61c16b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953727
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953727
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/92d43f0d-12f0-4ba5-9f24-dc36ef49caf1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/92d43f0d-12f0-4ba5-9f24-dc36ef49caf1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/92d43f0d-12f0-4ba5-9f24-dc36ef49caf1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T02:33:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87a7774e73059e6467456794dd1c1064891c49ca8108c90358dcb707ae61c16b","name":"Ewald Demeyere","registered_at":"2026-06-14T19:52:00Z","symbol":"NIM0558780","token_address":"0x64eb3d52553e644c7eb35c894ee523b4055e2958","type":"artist","uuid":"92d43f0d-12f0-4ba5-9f24-dc36ef49caf1"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a7774e73059e6467456794dd1c1064891c49ca8108c90358dcb707ae61c16b. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92d43f0d-12f0-4ba5-9f24-dc36ef49caf1.json and https://artists.proofprofile.net/proofs/artist/92d43f0d-12f0-4ba5-9f24-dc36ef49caf1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T02:33:01Z
  text: {"copyright_id":"0x87a7774e73059e6467456794dd1c1064891c49ca8108c90358dcb707ae61c16b","name":"Ewald Demeyere","registered_at":"2026-06-14T19:52:00Z","symbol":"NIM0558780","token_address":"0x64eb3d52553e644c7eb35c894ee523b4055e2958","type":"artist","uuid":"92d43f0d-12f0-4ba5-9f24-dc36ef49caf1"}
album: Flute Music of the Bach Family
  type: MusicAlbum
  date published: 2019-11-15
album: Handel: The Complete Solo Sonatas for Wind Instruments
  type: MusicAlbum
  date published: 2015-07-31
  track: Flute Sonata in B Minor, Op. 1 No. 9, HWV 367b: VI. Andante
    type: MusicRecording
    duration: PT2M23S
    duration ms: 143853
    explicit: false
    by artist: George Frideric Handel
    by artist: Barthold Kuijken
    by artist: Robert Kohnen
    by artist: Wieland Kuijken
    in album: Handel: The Complete Solo Sonatas for Wind Instruments
      type: MusicAlbum
      date published: 2015-07-31
    genre: classical
    genre: early-music
    genre: baroque
    genre: english-baroque
    genre: german-baroque
    isrc code: DECP61502015
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T17:33:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xce19403011c4526dd945cfff418dffcc6c985e4e02a7aae80e72fa6c88d1e744
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957120
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957120
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP61502015
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:22:41Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce19403011c4526dd945cfff418dffcc6c985e4e02a7aae80e72fa6c88d1e744. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP61502015.
      date published: 2026-07-08T03:22:41Z
    audio: Flute Sonata in B Minor, Op. 1 No. 9, HWV 367b: VI. Andante
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.947
      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: 0.435
      additional property: Energy
        type: PropertyValue
        value: 0.072
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.982
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.75
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.518
      additional property: Loudness (dB)
        type: PropertyValue
        value: -26.802
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Bach vs. Haydn 1788/90
  type: MusicAlbum
  date published: 2015-04-28
album: Bach, J.S.: Flute Sonata, Bwv 1034 / Bach, C.P.E.: Flute Sonata, Wq. 131, H. 561 / Mozart, W.A.: Flute Quartet No. 1
  type: MusicAlbum
  date published: 2008-01-01
album: Bach Sons - Flute Sonatas
  type: MusicAlbum
  date published: 2008-01-01
album: Bach, C.P.E.: Flute Sonatas
  type: MusicAlbum
  date published: 2006-01-01
album: Bach, J.S.: Flute Sonatas, Bwv 1030, 1032, 1033, 1034, 1035
  type: MusicAlbum
  date published: 2000-01-01
album: Kirnberger: Works for Flute & Harpsichord
  type: MusicAlbum
  date published: 2020-07-17
album: Keyboard Variations
  type: MusicAlbum
  date published: 2020-04-03
album: Telemann: Les Nations - Ouvertures & Oboe Concerti
  type: MusicAlbum
  date published: 2015-02-27
  track: Ouverture des Nations anciens et modernes in G Major, TWV 55: G4: II. Menuet 1 & 2
  track: Ouverture des Nations anciens et modernes in G Major, TWV 55: G4: I. Ouverture
album: Tears - Harpsichord Laments from the 17th-Century
  type: MusicAlbum
  date published: 2013-09-06
album: Symphonies by the Bach Sons
  type: MusicAlbum
  date published: 2012-05-01
album: 18th-Century Flemish Harpsichord Music
  type: MusicAlbum
  date published: 2011-11-21
album: Telemann: Overtures - Du angenehmer Weiberorden - Trauer-Music eines kunsterfahrenen
  type: MusicAlbum
  date published: 2008-04-01
album: Bach, J.B.: Overtures / Telemann, G.P.: Overtures, Twv 55:E2, Twv 55:E10, Twv 55:F14
  type: MusicAlbum
  date published: 2008-01-01
album: Scarlatti, D.: Keyboard Sonatas
  type: MusicAlbum
  date published: 2007-01-01
album: Fiocco, J.H.: 24 Pieces De Clavecin, Suites Nos. 1 and 2
  type: MusicAlbum
  date published: 2007-01-01
album: Haydn, J.: Keyboard Concerto in G Major / Divertimento in F Major / Harpsichord Concerto in F Major
  type: MusicAlbum
  date published: 2006-01-01
album: Bach, J.S.: Keyboard Music (The Young Virtuoso)
  type: MusicAlbum
  date published: 2005-01-01
album: Bach, W.F.: Keyboard Sonatas, F. 4, 8 and 9 / 8 Fugues
  type: MusicAlbum
  date published: 2004-01-01
album: Blavet, M.: Flute Music (L'Insinuante)
  type: MusicAlbum
  date published: 2000-01-01
  track: 6 Sonates mêlées de pièces, Op. 2: Flute Sonata No. 2 in D Minor, "La Vibray": V. Allegro
  track: Troisieme Livre de Sonates, Op. 3: Flute Sonata No. 2 in B Minor: II. Allegro
album: Mozart: Gran Partita
album: Hotteterre, J.: Chamber Music
album: Flute Music at the Berlin Court
album: Chamber Music - Handel, G. / Vivaldi, A.

Ouverture des Nations anciens et modernes in G Major, TWV 55: G4: II. Menuet 1 & 2
type: MusicRecording
duration: PT2M5S
duration ms: 125986
explicit: false
by artist: Georg Philipp Telemann
by artist: Bach Concentus
by artist: Vinciane Baudhuin
by artist: Ewald Demeyere
in album: Telemann: Les Nations - Ouvertures & Oboe Concerti
  type: MusicAlbum
  date published: 2015-02-27
isrc code: NLB151400702
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:05:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf30e33f9ffa632e1b139ce23f091b19673ee47252f5972c8c98e8c7f3ad6a67c
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/NLB151400702
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30e33f9ffa632e1b139ce23f091b19673ee47252f5972c8c98e8c7f3ad6a67c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151400702.
  date published: 2026-07-08T03:20:19Z
audio: Ouverture des Nations anciens et modernes in G Major, TWV 55: G4: II. Menuet 1 & 2
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 160.245
  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: 0.231
  additional property: Energy
    type: PropertyValue
    value: 0.06
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.813
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.063
  additional property: Liveness
    type: PropertyValue
    value: 0.163
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.57
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.581
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ouverture des Nations anciens et modernes in G Major, TWV 55: G4: I. Ouverture
type: MusicRecording
duration: PT3M6S
duration ms: 186853
explicit: false
by artist: Georg Philipp Telemann
by artist: Bach Concentus
by artist: Vinciane Baudhuin
by artist: Ewald Demeyere
in album: Telemann: Les Nations - Ouvertures & Oboe Concerti
  type: MusicAlbum
  date published: 2015-02-27
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a871b1aeb2092b4fd151da1821ebf80122e607519f2251a18f1bf22f2d8417. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151400701.
  date published: 2026-07-31T12:24:41Z
audio: Ouverture des Nations anciens et modernes in G Major, TWV 55: G4: I. Ouverture
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.977
  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: 0.341
  additional property: Energy
    type: PropertyValue
    value: 0.236
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.769
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.305
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.49
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.458
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLB151400701
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960397
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T12:24:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151400701
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41+00:00
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

6 Sonates mêlées de pièces, Op. 2: Flute Sonata No. 2 in D Minor, "La Vibray": V. Allegro
type: MusicRecording
duration: PT3M54S
duration ms: 234786
explicit: false
by artist: Michel Blavet
by artist: Frank Theuns
by artist: Martin Bauer
by artist: Ewald Demeyere
in album: Blavet, M.: Flute Music (L'Insinuante)
  type: MusicAlbum
  date published: 2000-01-01
genre: classical-era
genre: galante-era
genre: baroque
genre: french-baroque
isrc code: DECP60303006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:02:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2e439fa3b924576cc04e35b79c689efd15cc92a9fc56a858945a4b3dd4d6d38
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/DECP60303006
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e439fa3b924576cc04e35b79c689efd15cc92a9fc56a858945a4b3dd4d6d38. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP60303006.
  date published: 2026-07-08T08:56:20Z
audio: 6 Sonates mêlées de pièces, Op. 2: Flute Sonata No. 2 in D Minor, "La Vibray": V. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.96
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.488
  additional property: Energy
    type: PropertyValue
    value: 0.172
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.899
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.201
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.406
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.879
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Troisieme Livre de Sonates, Op. 3: Flute Sonata No. 2 in B Minor: II. Allegro
type: MusicRecording
duration: PT2M33S
duration ms: 153160
explicit: false
by artist: Michel Blavet
by artist: Frank Theuns
by artist: Ewald Demeyere
in album: Blavet, M.: Flute Music (L'Insinuante)
  type: MusicAlbum
  date published: 2000-01-01
genre: classical-era
genre: galante-era
genre: baroque
genre: french-baroque
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46e3c68ee466490e90f667258ec05f381519285b58f1857836b6aef9cca8ec8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP60303018.
  date published: 2026-07-29T19:35:34Z
audio: Troisieme Livre de Sonates, Op. 3: Flute Sonata No. 2 in B Minor: II. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.813
  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: 0.657
  additional property: Energy
    type: PropertyValue
    value: 0.194
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.91
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.853
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.979
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: DECP60303018
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960138
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP60303018
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
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

Serenade in B-Flat Major "Gran Partita", K. 361/370a: Adagio
type: MusicRecording
duration: PT5M39S
duration ms: 339493
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Quatuor Dialogues
by artist: Ewald Demeyere
in album: Mozart: Gran Partita
  type: MusicAlbum
  date published: 2016-03-11
genre: classical
genre: classical-era
isrc code: NLB151600114
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:51:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a98486cc3f94a678f368ec200d58740e7bfec206a499e370cd2150ad63bbf04
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600114
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957145
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T08:56:20+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a98486cc3f94a678f368ec200d58740e7bfec206a499e370cd2150ad63bbf04. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB151600114.
  date published: 2026-07-08T08:56:20Z
audio: Serenade in B-Flat Major "Gran Partita", K. 361/370a: Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.407
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.174
  additional property: Energy
    type: PropertyValue
    value: 0.05
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.924
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.177
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.119
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.388
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Gran Partita
type: MusicAlbum
date published: 2016-03-11
track: Serenade in B-Flat Major "Gran Partita", K. 361/370a: Adagio

Hotteterre, J.: Chamber Music
type: MusicAlbum
date published: 2003-01-01
track: Deuxieme suite de pieces a 2 dessus, Op. 6: IV. Musette
  type: MusicRecording
  duration: PT1M25S
  duration ms: 85653
  explicit: false
  by artist: Jacques Hotteterre
  by artist: Frank Theuns
  by artist: Marc Hantaï
  in album: Hotteterre, J.: Chamber Music
    type: MusicAlbum
    date published: 2003-01-01
  genre: baroque
  genre: french-baroque
  isrc code: DECP60105008
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:29:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf1c3224ce45a74c5d393d67f5fbbc20a363d54f05e730b264f2fb2dee2f723ca
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP60105008
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c3224ce45a74c5d393d67f5fbbc20a363d54f05e730b264f2fb2dee2f723ca. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP60105008.
    date published: 2026-07-08T08:56:20Z
  audio: Deuxieme suite de pieces a 2 dessus, Op. 6: IV. Musette
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.702
    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: 0.213
    additional property: Energy
      type: PropertyValue
      value: 0.03
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.995
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.843
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.441
    additional property: Loudness (dB)
      type: PropertyValue
      value: -28.239
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Deuxieme suite de pieces a 2 dessus, Op. 6: VII. Contrefaiseurs
  type: MusicRecording
  duration: PT2M48S
  duration ms: 168200
  explicit: false
  by artist: Jacques Hotteterre
  by artist: Frank Theuns
  by artist: Marc Hantaï
  in album: Hotteterre, J.: Chamber Music
    type: MusicAlbum
    date published: 2003-01-01
  genre: baroque
  genre: french-baroque
  isrc code: DECP60105015
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:54:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xffaff952848c40b9869d90dea4990882ec865a54c3af9926b5f375770b4b04f5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP60105015
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffaff952848c40b9869d90dea4990882ec865a54c3af9926b5f375770b4b04f5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DECP60105015.
    date published: 2026-07-08T08:56:20Z
  audio: Deuxieme suite de pieces a 2 dessus, Op. 6: VII. Contrefaiseurs
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 86.095
    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: 0.441
    additional property: Energy
      type: PropertyValue
      value: 0.026
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.994
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.933
    additional property: Liveness
      type: PropertyValue
      value: 0.129
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.334
    additional property: Loudness (dB)
      type: PropertyValue
      value: -28.831
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

Flute Music at the Berlin Court
type: MusicAlbum
date published: 2010-03-29

Chamber Music - Handel, G. / Vivaldi, A.
type: MusicAlbum
date published: 2000-01-01