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genre: classical
description: Tamás Benkócs (born 1972) is a Hungarian classical bassoonist. Biography and career Tamás Benkócs is a world famous bassoonist. He studied music at the Franz Liszt Academy of Music in Budapest, Hun
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  track: Bassoon Concerto in C Major, RV 473: I. Allegro
  track: Bassoon Concerto in C Major, RV 473: II. Largo
  track: Bassoon Concerto in C Major, RV 473: III. Minuetto
  track: Bassoon Concerto in F Major, RV 491: I. Allegro molto
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  track: Bassoon Concerto in F Major, RV 491: III. Allegro
  track: Bassoon Concerto in C Major, RV 466: I. Allegro
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  track: Bassoon Concerto in C Major, RV 466: III. Allegro
  track: Bassoon Concerto in C Major, RV 469: I. Allegro
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album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
album: Vivaldi: Bassoon Concertos (Complete), Vol. 3
album: Vivaldi: Bassoon Concertos (Complete), Vol. 2
album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
album: Vivaldi For Inspiration
album: Vivaldi For Study
album: Relaxing Vivaldi
album: Great Baroque Masterpieces
album: The Very Best of Vivaldi
album: A Guided Tour of the Baroque Era, Vol. 4
album: Vivaldi: Ses plus grandes œuvres
album: The Essentials: Vivaldi
album: The A to Z of Classical Music (3rd Expanded Edition, 2009)
album: 50 of the Best: Vivaldi
album: The Essential Vivaldi
album: The Best of Béla Drahos
album: Vivaldi for Meditation
album: Celebrating 10 Years Of Music @ Amazon.com
album: ヴィヴァルディ・ザ・ベスト

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Bassoon Concerto in C Major, RV 473: III. Minuetto
type: MusicRecording
duration: PT7M52S
duration ms: 472506
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi, A.: Bassoon Concertos (Complete), Vol. 5
  type: MusicAlbum
  date published: 2008-12-16
genre: classical
genre: early-music
genre: baroque
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: 2026-07-30T09:37:10Z
audio: Bassoon Concerto in C Major, RV 473: III. Minuetto
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Bassoon Concerto in F Major, RV 491: I. Allegro molto
type: MusicRecording
duration: PT3M37S
duration ms: 217800
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi, A.: Bassoon Concertos (Complete), Vol. 5
  type: MusicAlbum
  date published: 2008-12-16
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190844607
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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: 2026-07-30T20:09:33Z
audio: Bassoon Concerto in F Major, RV 491: I. Allegro molto
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Bassoon Concerto in F Major, RV 491: II. Largo
type: MusicRecording
duration: PT1M41S
duration ms: 101040
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi, A.: Bassoon Concertos (Complete), Vol. 5
  type: MusicAlbum
  date published: 2008-12-16
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190844608
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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  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: 2026-07-31T04:14:58Z
audio: Bassoon Concerto in F Major, RV 491: II. Largo
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Bassoon Concerto in F Major, RV 491: III. Allegro
type: MusicRecording
duration: PT2M52S
duration ms: 172280
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi, A.: Bassoon Concertos (Complete), Vol. 5
  type: MusicAlbum
  date published: 2008-12-16
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190844609
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
  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 0x17b3f927d7cea8b212d1536020100725da622cbdeaa67fa0b169f4c9cc2a9302. 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/HKI190844609 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Bassoon Concerto in F Major, RV 491: III. Allegro
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Bassoon Concerto in C Major, RV 466: I. Allegro
type: MusicRecording
duration: PT3M44S
duration ms: 224906
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi, A.: Bassoon Concertos (Complete), Vol. 5
  type: MusicAlbum
  date published: 2008-12-16
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aad5aa459fd4853dce75a8cee67001419cbaba32ac811adfc0cd3b7589e77f4. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190844610 — a six-check JSON result.
  date published: 2026-07-07T12:58:18Z
audio: Bassoon Concerto in C Major, RV 466: I. Allegro
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Bassoon Concerto in C Major, RV 466: II. Largo
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duration: PT2M52S
duration ms: 172093
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi, A.: Bassoon Concertos (Complete), Vol. 5
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  date published: 2008-12-16
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2417302655e8eeb7ede26fa256c67238b33e7a41ced0e762ea2db31e604cddac. 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/HKI190844611 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Bassoon Concerto in C Major, RV 466: II. Largo
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Bassoon Concerto in C Major, RV 466: III. Allegro
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duration: PT3M13S
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explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi, A.: Bassoon Concertos (Complete), Vol. 5
  type: MusicAlbum
  date published: 2008-12-16
genre: classical
genre: early-music
genre: baroque
genre: concerto
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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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  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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Bassoon Concerto in C Major, RV 469: I. Allegro
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Bassoon Concerto in C Major, RV 469: II. Largo
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Bassoon Concerto in C Major, RV 469: III. Allegro
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Bassoon Concerto in G Minor, RV 496: I. Allegro
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Bassoon Concerto in G Minor, RV 496: III. Allegro
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Vivaldi: Bassoon Concertos (Complete), Vol. 4
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-29T21:51:49Z
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track: Bassoon Concerto in F Major, RV 485: I. Allegro
track: Bassoon Concerto in F Major, RV 485: II. Largo
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track: Bassoon Concerto in C Major, RV 477: II. Largo
track: Bassoon Concerto in C Major, RV 477: III. Allegro
track: Bassoon Concerto in A Minor, RV 499: I. Allegro non molto
track: Bassoon Concerto in A Minor, RV 499: II. Larghetto
track: Bassoon Concerto in A Minor, RV 499: III. Allegro
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track: Bassoon Concerto in C Major, RV 470: II. Largo
track: Bassoon Concerto in C Major, RV 470: III. (Allegro)
track: Bassoon Concerto in G Major, RV 494: I. Allegro
track: Bassoon Concerto in G Major, RV 494: II. Larghetto
track: Bassoon Concerto in G Major, RV 494: III. Allegro molto

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Bassoon Concerto in F Major, RV 485: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
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Bassoon Concerto in F Major, RV 485: II. Largo
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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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Bassoon Concerto in F Major, RV 485: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190586410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:20:38Z
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 0x4d6691d03a495e83645893a810a010e93fc946c7af4306ac205c78f31982cc49. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/HKI190586410 — a six-check JSON result.
  date published: 2026-07-29T23:20:38Z
audio: Bassoon Concerto in C Major, RV 477: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 117.653
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.602
  additional property: Energy
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    value: 0.142
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.805
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.616
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.785
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Bassoon Concerto in C Major, RV 477: II. Largo
type: MusicRecording
duration: PT3M23S
duration ms: 203026
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
  type: MusicAlbum
  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190586411
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:54:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12d1107e052d2294a63db73e9839b3a78d2644f42d238a5022f37060d75f0399
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/HKI190586411
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 0x12d1107e052d2294a63db73e9839b3a78d2644f42d238a5022f37060d75f0399. 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/HKI190586411 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Bassoon Concerto in C Major, RV 477: II. Largo
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 101.964
  additional property: Musical Key
    type: PropertyValue
    value: 7
  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: 0.113
  additional property: Energy
    type: PropertyValue
    value: 0.014
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.039
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.192
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.422
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bassoon Concerto in C Major, RV 477: III. Allegro
type: MusicRecording
duration: PT3M30S
duration ms: 210440
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
  type: MusicAlbum
  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190586412
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:05:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x62c086dc7635742db13d4cd63fdae0be81c96ff3cbbaef1df4b9224001bbe034
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/HKI190586412
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 0x62c086dc7635742db13d4cd63fdae0be81c96ff3cbbaef1df4b9224001bbe034. 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/HKI190586412 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Bassoon Concerto in C Major, RV 477: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.381
  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: 0.467
  additional property: Energy
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    value: 0.16
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.684
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bassoon Concerto in A Minor, RV 499: I. Allegro non molto
type: MusicRecording
duration: PT3M10S
duration ms: 190266
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
  type: MusicAlbum
  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190586413
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T22:44:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a086227c9b7173e409bb8ab28c5392fdee452dfb0e21228dc8d8b8674143a2c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960160
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960160
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190586413
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T22:48:59Z
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 0x0a086227c9b7173e409bb8ab28c5392fdee452dfb0e21228dc8d8b8674143a2c. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/HKI190586413 — a six-check JSON result.
  date published: 2026-07-29T22:48:59Z
audio: Bassoon Concerto in A Minor, RV 499: I. Allegro non molto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.813
  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: 0.594
  additional property: Energy
    type: PropertyValue
    value: 0.211
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.876
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.411
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.608
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Bassoon Concerto in A Minor, RV 499: II. Larghetto
type: MusicRecording
duration: PT2M56S
duration ms: 176786
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
  type: MusicAlbum
  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190586414
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T09:18:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a829dab3e1da31bae60d1bbe1e9936a706ac5b8c912fc407a086513c28599e9
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: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190586414
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:57:33Z
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 0x4a829dab3e1da31bae60d1bbe1e9936a706ac5b8c912fc407a086513c28599e9. 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/HKI190586414 — a six-check JSON result.
  date published: 2026-07-30T09:57:33Z
audio: Bassoon Concerto in A Minor, RV 499: II. Larghetto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.914
  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: 0.183
  additional property: Energy
    type: PropertyValue
    value: 0.045
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.158
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.098
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.15
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bassoon Concerto in A Minor, RV 499: III. Allegro
type: MusicRecording
duration: PT2M0S
duration ms: 120160
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
  type: MusicAlbum
  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190586415
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T06:48:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x241e6b70bdf936f0458bc5bce556078be78b61112dde71e75596b23484e32f4e
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/HKI190586415
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241e6b70bdf936f0458bc5bce556078be78b61112dde71e75596b23484e32f4e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HKI190586415 — a six-check JSON result.
  date published: 2026-07-30T07:28:30Z
audio: Bassoon Concerto in A Minor, RV 499: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.84
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.622
  additional property: Energy
    type: PropertyValue
    value: 0.237
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.656
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.565
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
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Bassoon Concerto in C Major, RV 470: I. Allegro
type: MusicRecording
duration: PT3M47S
duration ms: 227106
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
  type: MusicAlbum
  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190586416
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:17:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x727bda354793406b79e684bf6b9038504c2484bdc5dea1dc3cd7019645e36071
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190586416
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10Z
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 0x727bda354793406b79e684bf6b9038504c2484bdc5dea1dc3cd7019645e36071. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190586416 — a six-check JSON result.
  date published: 2026-07-30T08:30:10Z
audio: Bassoon Concerto in C Major, RV 470: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.803
  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: 0.446
  additional property: Energy
    type: PropertyValue
    value: 0.142
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
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Bassoon Concerto in C Major, RV 470: II. Largo
type: MusicRecording
duration: PT3M11S
duration ms: 191080
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
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  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T06:57:05Z
audio: Bassoon Concerto in C Major, RV 470: II. Largo
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Bassoon Concerto in C Major, RV 470: III. (Allegro)
type: MusicRecording
duration: PT2M51S
duration ms: 171773
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
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  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
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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: 2026-07-30T12:06:10Z
audio: Bassoon Concerto in C Major, RV 470: III. (Allegro)
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Bassoon Concerto in G Major, RV 494: I. Allegro
type: MusicRecording
duration: PT3M52S
duration ms: 232160
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
  type: MusicAlbum
  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
genre: concerto
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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
audio: Bassoon Concerto in G Major, RV 494: I. Allegro
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Bassoon Concerto in G Major, RV 494: II. Larghetto
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duration: PT3M0S
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by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
  type: MusicAlbum
  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
genre: concerto
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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: 2026-07-31T05:17:02Z
audio: Bassoon Concerto in G Major, RV 494: II. Larghetto
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Bassoon Concerto in G Major, RV 494: III. Allegro molto
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duration: PT2M38S
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by artist: Antonio Vivaldi
by artist: Tamás Benkócs
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by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 4
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  date published: 2007-02-27
genre: classical
genre: early-music
genre: baroque
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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: 2026-07-30T14:36:16Z
audio: Bassoon Concerto in G Major, RV 494: III. Allegro molto
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Vivaldi: Bassoon Concertos (Complete), Vol. 3
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date published: 2006-06-20
track: Bassoon Concerto in G Minor, RV 495: I. Presto
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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: 2026-07-30T00:39:11Z
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track: Bassoon Concerto in G Minor, RV 495: II. Largo
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-29T23:20:38Z
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  by artist: Antonio Vivaldi
  by artist: Tamás Benkócs
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    type: MusicAlbum
    date published: 2006-06-20
  genre: classical
  genre: early-music
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  genre: concerto
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  subject of: OpenTimestamps Proof of Existence
  audio: Bassoon Concerto in G Minor, RV 495: III. Allegro
track: Bassoon Concerto in C Major, RV 474: I. Allegro
track: Bassoon Concerto in C Major, RV 474: II. Largo
track: Bassoon Concerto in C Major, RV 474: III. Allegro
track: Bassoon Concerto in E-Flat Major, RV 483: I. Presto
track: Bassoon Concerto in E-Flat Major, RV 483: II. Larghetto
track: Bassoon Concerto in E-Flat Major, RV 483: III. Allegro
track: Bassoon Concerto in B-Flat Major, RV 502: I. Allegro
track: Bassoon Concerto in B-Flat Major, RV 502: II. Largo
track: Bassoon Concerto in B-Flat Major, RV 502: III. Allegro
track: Bassoon Concerto in C Major, RV 472: I. Allegro non molto
track: Bassoon Concerto in C Major, RV 472: II. Andante molto
track: Bassoon Concerto in C Major, RV 472: III. Allegro
track: Bassoon Concerto in A Minor, RV 500: I. Allegro
track: Bassoon Concerto in A Minor, RV 500: II. Largo
track: Bassoon Concerto in A Minor, RV 500: III. Allegro

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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc248ef7c9a18d0b7971550129ae2498a33206f6ddcc32c7c19ef0639c179ce30. 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/HKI190461303 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Bassoon Concerto in G Minor, RV 495: III. Allegro
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Bassoon Concerto in C Major, RV 474: I. Allegro
type: MusicRecording
duration: PT2M52S
duration ms: 172160
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 3
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  date published: 2006-06-20
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-06-13T12:47:07Z
audio: Bassoon Concerto in C Major, RV 474: I. Allegro
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Bassoon Concerto in C Major, RV 474: II. Largo
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duration: PT3M12S
duration ms: 192986
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 3
  type: MusicAlbum
  date published: 2006-06-20
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:37:10Z
audio: Bassoon Concerto in C Major, RV 474: II. Largo
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Bassoon Concerto in C Major, RV 474: III. Allegro
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duration: PT2M23S
duration ms: 143466
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 3
  type: MusicAlbum
  date published: 2006-06-20
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightID
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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
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  date published: 2026-07-30T09:58:01Z
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Bassoon Concerto in E-Flat Major, RV 483: I. Presto
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duration: PT1M59S
duration ms: 119866
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 3
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genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightID
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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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  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: 2026-07-07T16:43:08Z
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Bassoon Concerto in E-Flat Major, RV 483: II. Larghetto
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duration ms: 146280
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by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 3
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genre: classical
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genre: baroque
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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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Bassoon Concerto in E-Flat Major, RV 483: III. Allegro
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by artist: Béla Drahos
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:53:07Z
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Bassoon Concerto in B-Flat Major, RV 502: I. Allegro
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by artist: Béla Drahos
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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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Bassoon Concerto in B-Flat Major, RV 502: II. Largo
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by artist: Béla Drahos
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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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Bassoon Concerto in B-Flat Major, RV 502: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T10:42:33Z
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Bassoon Concerto in C Major, RV 472: I. Allegro non molto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:57:33Z
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Bassoon Concerto in C Major, RV 472: II. Andante molto
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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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Bassoon Concerto in C Major, RV 472: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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audio: Bassoon Concerto in C Major, RV 472: III. Allegro
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Bassoon Concerto in A Minor, RV 500: I. Allegro
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by artist: Tamás Benkócs
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by artist: Béla Drahos
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subject of: OpenTimestamps Proof of Existence
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Bassoon Concerto in A Minor, RV 500: II. Largo
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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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Bassoon Concerto in A Minor, RV 500: III. Allegro
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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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Vivaldi: Bassoon Concertos (Complete), Vol. 2
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Vivaldi: Bassoon Concertos (Complete), Vol. 1
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-22T13:20:46Z
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  subject of: OpenTimestamps Proof of Existence
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track: Bassoon Concerto in C Major, RV 476: III. Allegro molto
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  audio: Bassoon Concerto in C Major, RV 476: III. Allegro molto
track: Bassoon Concerto in F Major, RV 487: I. Allegro
track: Bassoon Concerto in F Major, RV 487: II. Largo
track: Bassoon Concerto in F Major, RV 487: III. Allegro
track: Bassoon Concerto in C Major, RV 471: I. Allegro molto
track: Bassoon Concerto in C Major, RV 471: II. Larghetto
track: Bassoon Concerto in C Major, RV 471: III. Allegro
track: Bassoon Concerto in A Minor, RV 498: I. Allegro
track: Bassoon Concerto in A Minor, RV 498: II. Larghetto
track: Bassoon Concerto in A Minor, RV 498: III. Allegro
track: Bassoon Concerto in C Minor, RV 480: I. Allegro
track: Bassoon Concerto in C Minor, RV 480: II. Andante quasi minuetto
track: Bassoon Concerto in C Minor, RV 480: III. Allegro
track: Bassoon Concerto in B-Flat Major, RV 503: I. Allegro non molto
track: Bassoon Concerto in B-Flat Major, RV 503: II. Largo
track: Bassoon Concerto in B-Flat Major, RV 503: III. Allegro
track: Bassoon Concerto in G Major, RV 493: I. Allegro ma poco
track: Bassoon Concerto in G Major, RV 493: II. Largo
track: Bassoon Concerto in G Major, RV 493: III. Allegro

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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x53be854ffc64d8942051f20cbef7269c07732b9a3d3ffa3b2649a4523187cfeb

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956894

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956894

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190245403

OTSTimestamp
type: PropertyValue
value: 2026-07-06T07:53:57Z

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 0x53be854ffc64d8942051f20cbef7269c07732b9a3d3ffa3b2649a4523187cfeb. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/HKI190245403 — a six-check JSON result.
date published: 2026-07-06T07:53:57Z

Bassoon Concerto in C Major, RV 476: III. Allegro molto
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 148.765
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: 0.485
additional property: Energy
  type: PropertyValue
  value: 0.195
additional property: Speechiness
  type: PropertyValue
  value: 0.051
additional property: Acousticness
  type: PropertyValue
  value: 0.99
additional property: Instrumentalness
  type: PropertyValue
  value: 0.902
additional property: Liveness
  type: PropertyValue
  value: 0.139
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.734
additional property: Loudness (dB)
  type: PropertyValue
  value: -22.679
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Bassoon Concerto in F Major, RV 487: I. Allegro
type: MusicRecording
duration: PT2M44S
duration ms: 164626
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
  type: MusicAlbum
  date published: 2003-11-01
popularity: 3
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190245404
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T03:32:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x61a428c152ed82e8dacec45fac3bbd977ec6b2e039850a3f8797c287c38109dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960207
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960207
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190245404
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T04:47:22Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a428c152ed82e8dacec45fac3bbd977ec6b2e039850a3f8797c287c38109dd. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190245404 — a six-check JSON result.
  date published: 2026-07-30T04:47:22Z
audio: Bassoon Concerto in F Major, RV 487: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.845
  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: 0.643
  additional property: Energy
    type: PropertyValue
    value: 0.218
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.874
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.64
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.363
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bassoon Concerto in F Major, RV 487: II. Largo
type: MusicRecording
duration: PT3M35S
duration ms: 215266
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
  type: MusicAlbum
  date published: 2003-11-01
popularity: 4
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190245405
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:29:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc0057e091984224af23a956ec13b80994ca9e487064c0c2405894b858eb42d77
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/HKI190245405
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 0xc0057e091984224af23a956ec13b80994ca9e487064c0c2405894b858eb42d77. 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/HKI190245405 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Bassoon Concerto in F Major, RV 487: II. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.897
  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: 0.257
  additional property: Energy
    type: PropertyValue
    value: 0.012
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.899
  additional property: Liveness
    type: PropertyValue
    value: 0.076
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.219
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.432
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Bassoon Concerto in F Major, RV 487: III. Allegro
type: MusicRecording
duration: PT2M41S
duration ms: 161773
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
  type: MusicAlbum
  date published: 2003-11-01
popularity: 3
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190245406
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T14:33:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6083893e7992c126dcfd541602704ed3af0dca82fccf7b2543db0fdb9b8bae7d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960266
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960266
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190245406
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 0x6083893e7992c126dcfd541602704ed3af0dca82fccf7b2543db0fdb9b8bae7d. 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/HKI190245406 — a six-check JSON result.
  date published: 2026-07-30T14:44:50Z
audio: Bassoon Concerto in F Major, RV 487: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.594
  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: 0.432
  additional property: Energy
    type: PropertyValue
    value: 0.206
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.888
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.484
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.809
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bassoon Concerto in C Major, RV 471: I. Allegro molto
type: MusicRecording
duration: PT4M3S
duration ms: 243933
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
  type: MusicAlbum
  date published: 2003-11-01
popularity: 3
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190245407
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:49:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf95b58716c6393201388b07ba59c381fbbc91a0112c631e3fe3f31495e885932
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957050
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957050
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190245407
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T14:41:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95b58716c6393201388b07ba59c381fbbc91a0112c631e3fe3f31495e885932. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190245407 — a six-check JSON result.
  date published: 2026-07-07T14:41:13Z
audio: Bassoon Concerto in C Major, RV 471: I. Allegro molto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.181
  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: 0.451
  additional property: Energy
    type: PropertyValue
    value: 0.178
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.918
  additional property: Liveness
    type: PropertyValue
    value: 0.461
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.486
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.516
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bassoon Concerto in C Major, RV 471: II. Larghetto
type: MusicRecording
duration: PT2M39S
duration ms: 159893
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
  type: MusicAlbum
  date published: 2003-11-01
popularity: 3
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190245408
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:14:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7bf2792d0714b8f3d02f5db50d77e7bb62feb5701ab2545f9eac926b84f613a4
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/HKI190245408
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 0x7bf2792d0714b8f3d02f5db50d77e7bb62feb5701ab2545f9eac926b84f613a4. 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/HKI190245408 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Bassoon Concerto in C Major, RV 471: II. Larghetto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 148.869
  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: 0.213
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.906
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.245
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.202
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Bassoon Concerto in C Major, RV 471: III. Allegro
type: MusicRecording
duration: PT3M12S
duration ms: 192773
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
  type: MusicAlbum
  date published: 2003-11-01
popularity: 3
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190245409
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T02:02:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3b3c1a08abe967eca575878b8520ea9bcea7ab3ccf1b5cafcbe5d1ede6142bb5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960198
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960198
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190245409
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T02:21:55Z
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 0x3b3c1a08abe967eca575878b8520ea9bcea7ab3ccf1b5cafcbe5d1ede6142bb5. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/HKI190245409 — a six-check JSON result.
  date published: 2026-07-30T02:21:55Z
audio: Bassoon Concerto in C Major, RV 471: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.268
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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Bassoon Concerto in A Minor, RV 498: I. Allegro
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by artist: Tamás Benkócs
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by artist: Béla Drahos
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popularity: 6
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T11:07:37Z
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Bassoon Concerto in A Minor, RV 498: II. Larghetto
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by artist: Tamás Benkócs
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by artist: Béla Drahos
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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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Bassoon Concerto in A Minor, RV 498: III. Allegro
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by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
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popularity: 3
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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Bassoon Concerto in C Minor, RV 480: I. Allegro
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duration: PT3M15S
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by artist: Antonio Vivaldi
by artist: Tamás Benkócs
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by artist: Béla Drahos
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popularity: 4
genre: classical
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: 2026-07-08T03:20:19Z
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Bassoon Concerto in C Minor, RV 480: II. Andante quasi minuetto
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by artist: Béla Drahos
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T12:06:10Z
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Bassoon Concerto in C Minor, RV 480: III. 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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Bassoon Concerto in B-Flat Major, RV 503: I. Allegro non molto
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Bassoon Concerto in B-Flat Major, RV 503: I. Allegro non molto
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Bassoon Concerto in B-Flat Major, RV 503: II. Largo
type: MusicRecording
duration: PT2M56S
duration ms: 176840
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
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  date published: 2003-11-01
popularity: 2
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Bassoon Concerto in B-Flat Major, RV 503: II. Largo
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Bassoon Concerto in B-Flat Major, RV 503: III. Allegro
type: MusicRecording
duration: PT2M53S
duration ms: 173800
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
  type: MusicAlbum
  date published: 2003-11-01
popularity: 2
genre: classical
genre: early-music
genre: baroque
genre: concerto
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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: 2026-07-30T18:23:33Z
audio: Bassoon Concerto in B-Flat Major, RV 503: III. Allegro
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Bassoon Concerto in G Major, RV 493: I. Allegro ma poco
type: MusicRecording
duration: PT2M45S
duration ms: 165600
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
  type: MusicAlbum
  date published: 2003-11-01
popularity: 2
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightID
additional property: CopyrightStatus
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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: 2026-07-30T15:42:38Z
audio: Bassoon Concerto in G Major, RV 493: I. Allegro ma poco
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Bassoon Concerto in G Major, RV 493: II. Largo
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duration: PT2M40S
duration ms: 160200
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
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popularity: 2
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Bassoon Concerto in G Major, RV 493: II. Largo
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Bassoon Concerto in G Major, RV 493: III. Allegro
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duration: PT1M58S
duration ms: 118893
explicit: false
by artist: Antonio Vivaldi
by artist: Tamás Benkócs
by artist: Nicolaus Esterhazy Sinfonia
by artist: Béla Drahos
in album: Vivaldi: Bassoon Concertos (Complete), Vol. 1
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popularity: 2
genre: classical
genre: early-music
genre: baroque
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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: 2026-07-31T02:19:15Z
audio: Bassoon Concerto in G Major, RV 493: III. Allegro
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Vivaldi For Inspiration
type: MusicAlbum
date published: 2022-01-14

Vivaldi For Study
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date published: 2021-12-24
track: The Four Seasons: Violin Concerto in E Major, Op. 8, No. 1, Rv 269, "la primavera" (Spring): Ii. Largo e pianissimo sempre
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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: 2026-07-31T23:51:35Z
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Great Baroque Masterpieces
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The Very Best of Vivaldi
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Vivaldi: Ses plus grandes œuvres
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The Essentials: Vivaldi
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The A to Z of Classical Music (3rd Expanded Edition, 2009)
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track: Concerto for 2 Cellos in G Minor, RV 531: I. Allegro
track: Concerto for Strings in G Major, RV 151 "Alla rustica"
track: Flute Concerto in D Major, Op. 10 No. 3, RV 428 "Il gardellino": Flute Concerto in D Major, Op. 10, No. 3, RV 428, "Il gardellino": II. Cantabile
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Concerto for Strings in G Major, RV 151 "Alla rustica"
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Flute Concerto in D Major, Op. 10 No. 3, RV 428 "Il gardellino": Flute Concerto in D Major, Op. 10, No. 3, RV 428, "Il gardellino": II. Cantabile
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  date published: 2026-07-08T03:20:19Z
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Griselda, RV 718: Agitata da due venti
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Chamber Concerto in D Major, RV 93: II. Largo (Arr. For lute and strings)
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Concerto for 2 Trumpets in C Major, RV 537: I. Allegro
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The 4 Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo
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Bassoon Concerto in F Major, RV 486: III. Allegro
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The Best of Béla Drahos
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ヴィヴァルディ・ザ・ベスト
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