László Hadady
type: MusicGroup
description: László Hadady (born 1956) is a French oboist of Hungarian origin, currently a soloist and professor at the Conservatoire de Paris. Biography Born in Békésszentandrás (Hungary), Hadady studied music
popularity: 24
followers: 97
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album: Boccherini: 3 Quartets for flute and strings, Op. 5 - Quintet in C major for flute, oboe and strings
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album: Bach: Complete Oboe Concertos
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album: Pierre Boulez Edition: Webern, Varese & Berio
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album: Berio: Sequenzas
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  track: Sequenza VIII for Violin (1976)
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    by artist: Jeanne-Marie Conquer
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      date published: 2026-07-08T03:53:27Z
    audio: Sequenza VIII for Violin (1976)
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  track: Sequenza XII for Bassoon (1995)
  track: Sequenza III for Female Voice
  track: Sequenza XIII for Accordion "Chanson" (1995)
  track: Sequenza IV for Piano
  track: Sequenza VII for Oboe
album: Vivaldi: Chamber Concertos
album: J.S. Bach: Trio Sonatas
album: Jeney: Alef: Hommage A Schonberg / Apollonhoz (To Apollo) / 12 Songs
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album: Harmonia Sacre

Sequenza VII for Oboe
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by artist: Luciano Berio
by artist: László Hadady
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T00:26:26Z
audio: Sequenza VII for Oboe
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Chamber Concerto in G Minor, RV 103: III. Allegro
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duration: PT1M56S
duration ms: 116200
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by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Gyorgy Olajos
by artist: Borbála Dobozy
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  date published: 2005-12-13
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:20:19Z
audio: Chamber Concerto in G Minor, RV 103: III. Allegro
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Chamber Concerto in G Minor, RV 105: III. Allegro molto
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by artist: Antonio Vivaldi
by artist: László Kecskeméti
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by artist: Attila Falvay
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by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:53:27Z
audio: Chamber Concerto in G Minor, RV 105: III. Allegro molto
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Concerto for Recorder, Oboe and 2 Violins in C Major, RV 87: I. Allegro
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by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Katalin Parkanyi
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
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Concerto for Recorder, Oboe and 2 Violins in C Major, RV 87: II. Largo
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duration: PT2M43S
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by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Katalin Parkanyi
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T08:56:20Z
audio: Concerto for Recorder, Oboe and 2 Violins in C Major, RV 87: II. Largo
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Concerto for Recorder, Oboe and 2 Violins in C Major, RV 87: III. Allegro assai
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by artist: László Hadady
by artist: Attila Falvay
by artist: Katalin Parkanyi
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T12:47:07Z
audio: Concerto for Recorder, Oboe and 2 Violins in C Major, RV 87: III. Allegro assai
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Concerto in G Major, RV 101: I. Allegro
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by artist: László Kecskeméti
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:53:27Z
audio: Concerto in G Major, RV 101: I. Allegro
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Chamber Concerto in G Minor, RV 103: I. Allegro
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by artist: László Kecskeméti
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by artist: Gyorgy Olajos
by artist: Borbála Dobozy
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  date published: 2026-07-29T23:52:38Z
audio: Chamber Concerto in G Minor, RV 103: I. Allegro
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additional property: OTSVerifyInstructions
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Chamber Concerto in G Minor, RV 103: II. Largo
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by artist: Borbála Dobozy
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  date published: 2026-07-30T09:58:01Z
audio: Chamber Concerto in G Minor, RV 103: II. Largo
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Chamber Concerto in G Minor, RV 105: I. Allegro
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by artist: Gyorgy Kertesz
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  date published: 2026-07-30T07:28:30Z
audio: Chamber Concerto in G Minor, RV 105: I. Allegro
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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

Chamber Concerto in G Minor, RV 105: II. Largo
type: MusicRecording
duration: PT2M8S
duration ms: 128080
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a48ae038e18f3a3528076ab1e445a53acfd3a18707ac1de529df19784fed0eb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423308.
  date published: 2026-07-31T00:26:26Z
audio: Chamber Concerto in G Minor, RV 105: II. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.904
  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: 0.218
  additional property: Energy
    type: PropertyValue
    value: 0.01
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.354
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.529
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190423308
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: 960327
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423308
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26+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

Concerto in D Major, RV 94: I. Allegro
type: MusicRecording
duration: PT3M35S
duration ms: 215200
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931fe42a01007054f6535a9a54d1b8b80aad45e656b2f03b9b769169a8bae109. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423310.
  date published: 2026-07-30T09:57:33Z
audio: Concerto in D Major, RV 94: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.043
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.566
  additional property: Energy
    type: PropertyValue
    value: 0.172
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.799
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.028
  additional property: Liveness
    type: PropertyValue
    value: 0.272
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.653
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.386
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190423310
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: 960240
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T09:57:33+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423310
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960240
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960240
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:57:33+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

Concerto in D Major, RV 94: II. Largo
type: MusicRecording
duration: PT3M20S
duration ms: 200600
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0549f8c92b32ae383596abab3495dcc49f7b4f55748ee496883b43131e4117d7. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/HKI190423311.
  date published: 2026-07-31T00:58:21Z
audio: Concerto in D Major, RV 94: II. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.075
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.145
  additional property: Energy
    type: PropertyValue
    value: 0.021
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.073
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.317
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.626
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190423311
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: 960330
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:58:21+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423311
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960330
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960330
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:58:21+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

Concerto in D Major, RV 94: III. Allegro
type: MusicRecording
duration: PT3M52S
duration ms: 232600
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4137e9866015e5e3e7db5487ef83b02b7f7c2ecbbe10b7a0e241b43f8ac633c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423312.
  date published: 2026-07-30T18:23:33Z
audio: Concerto in D Major, RV 94: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.958
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.479
  additional property: Energy
    type: PropertyValue
    value: 0.219
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.736
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.149
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.54
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.24
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190423312
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: 960291
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T18:23:33+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423312
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960291
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960291
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:23:33+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

Concerto in G Major, RV 101: II. Largo
type: MusicRecording
duration: PT2M15S
duration ms: 135573
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bc66b175b2a0e189f5076361675cc05a01a7eb629140c9f139ef504809f90c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423320.
  date published: 2026-07-31T00:26:26Z
audio: Concerto in G Major, RV 101: II. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.418
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.241
  additional property: Energy
    type: PropertyValue
    value: 0.039
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.941
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.221
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.722
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: HKI190423320
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: 960327
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423320
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26+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

Concerto in G Major, RV 101: III. Allegro
type: MusicRecording
duration: PT2M47S
duration ms: 167800
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe407aff41638c3246e49d45ce36b664149be4037d95686b73c301d4542a59400. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423321.
  date published: 2026-07-30T12:06:10Z
audio: Concerto in G Major, RV 101: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.474
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.493
  additional property: Energy
    type: PropertyValue
    value: 0.099
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.898
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.027
  additional property: Liveness
    type: PropertyValue
    value: 0.134
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.711
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.679
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190423321
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: 960254
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T12:06:10+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423321
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960254
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960254
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:06:10+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

Instrumentalness
type: PropertyValue
value: 0.073

Liveness
type: PropertyValue
value: 0.095

Valence (Positivity)
type: PropertyValue
value: 0.108

Loudness (dB)
type: PropertyValue
value: -21.887

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Minor

Sequenza XII for Bassoon (1995)
type: MusicRecording
duration: PT18M31S
duration ms: 1111000
explicit: false
by artist: Luciano Berio
by artist: Pascal Gallois
in album: Berio: Sequenzas
  type: MusicAlbum
  date published: 1998-01-01
isrc code: DEF059505350
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:57:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42fe19fc87144040127f86cc0fda2dd022c42eec49488bebc20cf20079bc127e
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/DEF059505350
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
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Sequenza XIII for Accordion "Chanson" (1995)
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subject of: OpenTimestamps Proof of Existence
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Sequenza IV for Piano
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Vivaldi: Chamber Concertos
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track: Chamber Concerto in G Minor, RV 103: III. Allegro
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    date published: 2026-07-08T03:20:19Z
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track: Chamber Concerto in G Minor, RV 105: III. Allegro molto
track: Concerto for Recorder and 2 Violins in A Minor, RV 108: I. Allegro
track: Concerto for Recorder and 2 Violins in A Minor, RV 108: III. Allegro
track: Concerto for Recorder, Oboe and 2 Violins in C Major, RV 87: I. Allegro
track: Concerto for Recorder, Oboe and 2 Violins in C Major, RV 87: II. Largo
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track: Concerto in G Major, RV 101: I. Allegro
track: Chamber Concerto in G Minor, RV 103: I. Allegro
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track: Chamber Concerto in G Minor, RV 105: I. Allegro
track: Chamber Concerto in G Minor, RV 105: II. Largo
track: Concerto in D Major, RV 94: I. Allegro
track: Concerto in D Major, RV 94: II. Largo
track: Concerto in D Major, RV 94: III. Allegro
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Chamber Concerto in D Major, RV 92: III. Allegro
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by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: Attila Falvay
by artist: Katalin Parkanyi
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
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J.S. Bach: Trio Sonatas
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Jeney: Alef: Hommage A Schonberg / Apollonhoz (To Apollo) / 12 Songs
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Zádor: Divertimento - Elegie and Dance
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Harmonia Sacre
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