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genre: classical
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album: Dvořák: Works for Cello & Orchestra
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album: Il dottor Djembe
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  track: Via Broletto 34
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    by artist: David Riondino
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    subject of: OpenTimestamps Proof of Existence
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  track: El Cacerolazo
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T15:20:15Z
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  track: Normalmente
  track: Che fine ha fatto Zagolin
  track: Resta
album: Enrico Dindo plays Vivaldi
album: Cello Cantabile: Works for Cello & Strings (Live)
album: Castelnuovo-Tedesco: Works for Cello & Piano
album: Vivaldi: Cello Concertos RV 399, 400, 403, 406, 410, 419, 422
album: Cello Concertos And Kindersinfonie
album: Kapustin: Cello Concerto No. 2 Op. 103
album: Shostakovich: Cello Concertos Nos. 1 & 2
album: CPE Bach: The Cello Concertos
album: Sei Suites per Violoncello
album: 6 Cello Concertos
album: Shostakovich: Kammersinfonie Op. 110a, Stravinsky: Concerto in D & Françaix: Symphonie d'archets
album: Giuseppe Martucci: Complete Works for Cello and Piano
album: Rota, Respighi, Martucci & Puccini: Concerto Italiano
album: Tchaikovsky & Bartók
album: Tchaikovsky: Trio à la Mémoire D'un Grand Artiste & Souvenir D'un Lieu Cher
album: Brahms: The Cello Sonatas
album: From the Bohemian Forest, Op. 68, B. 182: No. 5, Klid
album: 古典弦乐: 睡着的大提琴
album: 17th Century Orchestra: Vivaldi
album: Celebration of Vivaldi: Encore!
album: A Classical December: Vivaldi
album: 10 Great Composers: Baroque Masters
album: "66 Classics" - Vivaldi Orchestral Works
album: 2025 - A New Year Celebration with Vivaldi
album: "Classical Inventions" - Bach, Mozart & Beethoven

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by artist: Joe Barbieri
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subject of: OpenTimestamps Proof of Existence
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Che fine ha fatto Zagolin
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subject of: OpenTimestamps Proof of Existence
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Resta
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subject of: OpenTimestamps Proof of Existence
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Enrico Dindo plays Vivaldi
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Cello Cantabile: Works for Cello & Strings (Live)
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Castelnuovo-Tedesco: Works for Cello & Piano
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Vivaldi: Cello Concertos RV 399, 400, 403, 406, 410, 419, 422
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track: Cello Concerto in A minor, RV 422: 1. Allegro
track: Cello Concerto in A minor, RV 422: 2. Largo
track: Cello Concerto in A minor, RV 422: 3. Allegro
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track: Cello Concerto in C Major, RV.399: 2. Largo cantabile
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track: Cello Concerto in D Major, RV.406: 1. Allegro non molto
track: Cello Concerto in D Major, RV.406: 2. Andante
track: Cello Concerto in D Major, RV.406: 3. Minuetto
track: Cello Concerto in F Major, RV.410: 1. Allegro
track: Cello Concerto in F Major, RV.410: 2. Largo
track: Cello Concerto in F Major, RV.410: 3. Allegro
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track: Cello Concerto In A Minor, RV 419: 1. Allegro
track: Cello Concerto In A Minor, RV 419: 2. Andante
track: Cello Concerto In A Minor, RV 419: 3. Allegro

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Cello Concerto in A minor, RV 422: 1. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T13:21:01Z
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Cello Concerto in C Major, RV.399: 2. Largo cantabile
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by artist: Enrico Dindo
by artist: I Solisti di Pavia
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
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Cello Concerto in C Major, RV.399: 3. Allegro
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by artist: Enrico Dindo
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T15:38:35Z
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Cello Concerto in D Major, RV.406: 1. Allegro non molto
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by artist: Enrico Dindo
by artist: I Solisti di Pavia
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T07:28:30Z
audio: Cello Concerto in D Major, RV.406: 1. Allegro non molto
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Cello Concerto in D Major, RV.406: 2. Andante
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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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Cello Concerto in D Major, RV.406: 3. Minuetto
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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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Cello Concerto in F Major, RV.410: 1. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Cello Concerto in F Major, RV.410: 2. Largo
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Cello Concerto in F Major, RV.410: 3. Allegro
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subject of: OpenTimestamps Proof of Existence
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Cello Concerto in C Major, RV.400: 1. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:43:45Z
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Cello Concerto in C Major, RV.400: 2. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:54:37Z
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Cello Concerto in C Major, RV.400: 3. Allegro non molto
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Cello Concerto In A Minor, RV 419: 1. Allegro
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Cello Concerto In A Minor, RV 419: 2. Andante
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Kapustin: Cello Concerto No. 2 Op. 103
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Suite for Cello Solo No. 1 in G, BWV 1007: 5. Menuet I-II
type: MusicRecording
duration: PT3M2S
duration ms: 182386
explicit: false
by artist: Johann Sebastian Bach
by artist: Enrico Dindo
in album: Sei Suites per Violoncello
  type: MusicAlbum
  date published: 2011-01-01
popularity: 2
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: ITUM71003340
additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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: 2026-07-31T19:53:57Z
audio: Suite for Cello Solo No. 1 in G, BWV 1007: 5. Menuet I-II
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Suite for Cello Solo No. 2 in D minor, BWV 1008: 1. Prélude
type: MusicRecording
duration: PT3M40S
duration ms: 220573
explicit: false
by artist: Johann Sebastian Bach
by artist: Enrico Dindo
in album: Sei Suites per Violoncello
  type: MusicAlbum
  date published: 2011-01-01
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: ITUM71003342
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:22:41Z
audio: Suite for Cello Solo No. 2 in D minor, BWV 1008: 1. Prélude
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Suite for Cello Solo No. 2 in D minor, BWV 1008: 3. Courante
type: MusicRecording
duration: PT1M52S
duration ms: 112866
explicit: false
by artist: Johann Sebastian Bach
by artist: Enrico Dindo
in album: Sei Suites per Violoncello
  type: MusicAlbum
  date published: 2011-01-01
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: ITUM71003344
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T21:25:57Z
audio: Suite for Cello Solo No. 2 in D minor, BWV 1008: 3. Courante
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Suite for Cello Solo No. 2 in D minor, BWV 1008: 4. Sarabande
type: MusicRecording
duration: PT4M8S
duration ms: 248026
explicit: false
by artist: Johann Sebastian Bach
by artist: Enrico Dindo
in album: Sei Suites per Violoncello
  type: MusicAlbum
  date published: 2011-01-01
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: ITUM71003345
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fabcccf4c5860a74eb1543704786ebdb1a883001a4ba153abb9d84258f092e. 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/ITUM71003345 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Suite for Cello Solo No. 2 in D minor, BWV 1008: 4. Sarabande
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Suite for Cello Solo No. 6 in D, BWV 1012: 1. Prélude
type: MusicRecording
duration: PT4M51S
duration ms: 291306
explicit: false
by artist: Johann Sebastian Bach
by artist: Enrico Dindo
in album: Sei Suites per Violoncello
  type: MusicAlbum
  date published: 2011-01-01
popularity: 2
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: ITUM71003348
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b481d8599bd55a2b13ee903c8da075804d8bf6c9896b56bab3a62c61c71c5e4. 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/ITUM71003348 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Suite for Cello Solo No. 6 in D, BWV 1012: 1. Prélude
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  additional property: Valence (Positivity)
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Suite for Cello Solo No. 6 in D, BWV 1012: 2. Allemande
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duration: PT8M57S
duration ms: 537453
explicit: false
by artist: Johann Sebastian Bach
by artist: Enrico Dindo
in album: Sei Suites per Violoncello
  type: MusicAlbum
  date published: 2011-01-01
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: ITUM71003349
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0d6f31b61a0aa06e08d7841cc3ae7248c193a5723a57f3f91ce3d203252b12. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM71003349 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Suite for Cello Solo No. 6 in D, BWV 1012: 2. Allemande
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Suite for Cello Solo No. 6 in D, BWV 1012: 4. Sarabande
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duration: PT4M10S
duration ms: 250000
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by artist: Johann Sebastian Bach
by artist: Enrico Dindo
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  date published: 2011-01-01
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: ITUM71003351
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Suite for Cello Solo No. 6 in D, BWV 1012: 6. Gigue
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by artist: Enrico Dindo
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popularity: 1
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genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
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6 Cello Concertos
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date published: 2011-01-01

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  by artist: I Solisti di Pavia
  by artist: Enrico Dindo
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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track: Chamber Symphony in C Minor, Op. 110a: II. Allegro molto
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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: 2026-07-31T02:19:15Z
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track: Chamber Symphony in C Minor, Op. 110a: III. Allegretto
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  audio: Chamber Symphony in C Minor, Op. 110a: III. Allegretto
track: Chamber Symphony in C Minor, Op. 110a: IV. Largo
track: Chamber Symphony in C Minor, Op. 110a: V. Largo

OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
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date published: 2026-07-31T21:25:57Z

Chamber Symphony in C Minor, Op. 110a: III. Allegretto
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Chamber Symphony in C Minor, Op. 110a: IV. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
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track: Concerto for Violin and Strings in F, Op. 8, No. 3, R.293 "L'autunno": 3. Allegro (La caccia)
track: Flautino Concerto in C, R.443: 3. Allegro molto
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track: Gloria: Gloria in excelsis Deo

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  date published: 2026-07-08T03:20:19Z
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Flautino Concerto in C, R.443: 3. Allegro molto
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  date published: 2026-07-07T16:07:00Z
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12 Violin Concertos, Op. 8 "Il cimento dell'armonia e dell'inventione" / Concerto No. 2 in G Minor for solo violin, RV315 "L'Estate": III. Presto
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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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La stravaganza, Violin Concerto in G Major, RV 185, Op. 4 No. 7: IV. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto for 2 Oboes, Strings and Continuo in D minor, R.535: 3. Allegro molto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
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12 Violin Concertos, Op. 9 - "La cetra" - Concerto No. 3 in G minor, RV334: 1. Allegro non molto
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subject of: OpenTimestamps Proof of Existence
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12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 7 in F Major for 4 Violins, RV 567: 3b. Allegro
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subject of: OpenTimestamps Proof of Existence
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Concerto for Violin and Strings in E flat, Op. 8/5 , RV 253 "La tempesta di mare": 1. (Allegro e) presto
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  date published: 2026-07-31T21:25:57Z
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Cello Concerto in C Minor, RV401: 3. Allegro ma non molto
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Flute Concerto in G Minor, RV 439 "La notte": VI. Allegro
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12 Violin Concertos, Op. 4 - "La stravaganza" - Concerto No. 8 in D minor, RV 249: 1a. Allegro - Adagio - Presto
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12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 4 in E Minor for 4 Violins, RV 550: IV. Allegro
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12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 2 in G Minor for 2 Violins and Cello, RV 578: 2. Allegro
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12 Violin Concertos, Op. 4 - "La stravaganza" / Concerto No. 11 in D Major, RV 204: 3. Allegro assai
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  date published: 2026-07-31T19:53:13Z
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Concerto for Strings and Continuo in G Major, RV 151 "Concerto alla Rustica": 1. Presto
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  date published: 2026-07-08T03:20:19Z
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Concerto in F major, Op.10, No.1, RV 433 "La tempesta di mare": 3. Presto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:26:41Z
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L'estro armonico, Concerto for 4 Violins in E Minor, RV 550, Op. 3 No. 4: II. Allegro assai
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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12 Violin Concertos, Op. 9 - "La cetra" - Concerto No. 3 in G minor, RV334: 3. Allegro non molto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T21:25:57Z
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Concerto for Strings and Continuo in D minor, RV 129: 2. Allegro
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  date published: 2026-07-08T03:20:19Z
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Concerto in A Major, RV 585: III. Allegro (Ed. G.Prato)
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subject of: OpenTimestamps Proof of Existence
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Gloria: Gloria in excelsis Deo
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track: Concerto for 2 Violins in A Minor, RV 523: II. Largo
track: Nulla in mundo pax, RV 630: 4. Alleluia (Allegro)
track: Concerto for Lute, 2 Violins and Continuo in D Major, RV 93: III. Allegro

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Concerto for 2 Violins in A Minor, RV 523: II. Largo
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Nulla in mundo pax, RV 630: 4. Alleluia (Allegro)
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date published: 2026-07-29T15:38:18Z

Soft Music on the Rocks
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Sonata in G Major for Violin (Flute) & Keyboard, BWV 1021: 2. Vivace
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by artist: Philippe Mermoud
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genre: classical-piano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
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Trio Sonata for 2 Flutes and Continuo in E minor, HWV 395: 1. Largo
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by artist: Trevor Wye
by artist: George Malcolm
by artist: Denis Vigay
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:04:01Z
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Sonata in B minor, Op. 3, No. 4: 3. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T12:41:21Z
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Sonata in D Minor, Op. 4 No. 1: III. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:09:47Z
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Les Nations - Troisième Ordre - "L'Impériale": Gigue
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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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Hornpipe in E Minor, Z.T685
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
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Recorder Sonata in D Minor, Op. 1 No. 9a, HWV 367a: IV. Adagio
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:51:49Z
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Concerto grosso No. 6 in E Major: III. Largo
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duration: PT1M0S
duration ms: 60826
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by artist: Alessandro Scarlatti
by artist: Eivind Aadland
by artist: European Union Chamber Orchestra
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genre: classical
genre: italian-opera
genre: early-music
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genre: italian-baroque
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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: 2026-07-30T01:34:28Z
audio: Concerto grosso No. 6 in E Major: III. Largo
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L'Orfeo - Prologo: Toccata
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duration: PT1M45S
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by artist: Claudio Monteverdi
by artist: Musica Reservata
by artist: Michael Morrow
by artist: John Beckett
in album: 10 Great Composers: Baroque Masters
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genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
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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: L'Orfeo - Prologo: Toccata
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Pièces de clavecin, Livre II, Ordre 8: VI. Gavotte
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duration ms: 78240
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by artist: Angela Hewitt
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genre: classical
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genre: early-music
genre: baroque
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: Pièces de clavecin, Livre II, Ordre 8: VI. Gavotte
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Cello Concerto in D, RV404: 2. Adagio affettuoso
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duration: PT1M3S
duration ms: 63346
explicit: false
by artist: Antonio Vivaldi
by artist: Enrico Dindo
by artist: I Solisti di Pavia
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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: 2026-07-30T05:15:54Z
audio: Cello Concerto in D, RV404: 2. Adagio affettuoso
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Flute Sonata in B Minor, HWV 376 "Halle No. 3": III. Largo
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duration: PT0M52S
duration ms: 52706
explicit: false
by artist: George Frideric Handel
by artist: Lisa Beznosiuk
by artist: Richard Tunnicliffe
by artist: Paul Nicholson
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genre: classical
genre: opera
genre: early-music
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genre: german-baroque
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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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Trio Sonata in A flat for 2 Violins and Continuo, Op. 1/9 , RV 75: 2. Adagio
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duration: PT1M6S
duration ms: 66000
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by artist: Bruno Canino
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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: 2026-07-29T21:51:49Z
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Violin Sonata in G Major, HWV 358: II. [Adagio]
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duration: PT0M39S
duration ms: 39866
explicit: false
by artist: George Frideric Handel
by artist: Elizabeth Wallfisch
by artist: Richard Tunnicliffe
by artist: Paul Nicholson
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
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additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-29T22:13:32Z
audio: Violin Sonata in G Major, HWV 358: II. [Adagio]
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L'Apothéose de Lully: XIIIc. Rondement
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duration: PT1M28S
duration ms: 88160
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by artist: Arcangelo
by artist: Jonathan Cohen
in album: 10 Great Composers: Baroque Masters
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  date published: 2024-11-19
genre: classical
genre: classical-era
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genre: baroque
genre: french-baroque
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: L'Apothéose de Lully: XIIIc. Rondement
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Violin Sonata in G Minor, Op. 1 No. 6, HWV 364a: III. Adagio
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duration: PT0M48S
duration ms: 48040
explicit: false
by artist: George Frideric Handel
by artist: Elizabeth Wallfisch
by artist: Richard Tunnicliffe
by artist: Paul Nicholson
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
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additional property: CopyrightID
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-30T07:28:30Z
audio: Violin Sonata in G Minor, Op. 1 No. 6, HWV 364a: III. Adagio
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Sonata in D minor, Op. 4, No. 8: 3. Sarabanda (Allegro)
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duration: PT0M53S
duration ms: 53506
explicit: false
by artist: Arcangelo Corelli
by artist: Monica Huggett
by artist: Alison Bury
by artist: Hopkinson Smith
by artist: Ton Koopman
by artist: Jaap Ter Linden
in album: 10 Great Composers: Baroque Masters
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  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: italian-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: 2026-07-30T00:16:15Z
audio: Sonata in D minor, Op. 4, No. 8: 3. Sarabanda (Allegro)
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Trio Sonata for Flute, Violin and Continuo in G minor, Op. 2, No. 2, HWV 387: 2. Allegro
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duration: PT1M12S
duration ms: 72040
explicit: false
by artist: George Frideric Handel
by artist: William Bennett
by artist: Kenneth Sillito
by artist: Denis Vigay
by artist: George Malcolm
by artist: Academy of St. Martin in the Fields Chamber Ensemble
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  date published: 2024-11-19
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-02T03:55:08Z
audio: Trio Sonata for Flute, Violin and Continuo in G minor, Op. 2, No. 2, HWV 387: 2. Allegro
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Trio Sonata in G minor for 2 Violins and Continuo, Op. 1/1 , RV 7 3: 4. Capriccio (Allegro)
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duration ms: 71000
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by artist: Bruno Canino
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Trio Sonata in G minor for 2 Violins and Continuo, Op. 1/1 , RV 7 3: 4. Capriccio (Allegro)
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Oboe Sonata in C Minor, HWV 366: IV. Bourrée anglaise
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by artist: Paul Nicholson
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genre: classical
genre: opera
genre: early-music
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genre: german-baroque
genre: choral
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  value: https://blockstream.info/api/block-height/960264
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9592227
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
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 0x3b6e7e952e7762b31911fb0d2af6fa68b4202f9888058a6683dac6cc11cb0af4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBAJY9592227 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: Oboe Sonata in C Minor, HWV 366: IV. Bourrée anglaise
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Les Goûts-réünis - Concert No. 6 in B flat major: 4. Air de diable: Très vite
type: MusicRecording
duration: PT1M32S
duration ms: 92493
explicit: false
by artist: François Couperin
by artist: Les Talens Lyriques
by artist: Christophe Rousset
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: classical-era
genre: early-music
genre: baroque
genre: french-baroque
isrc code: GBBBB9608537
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960155
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB9608537
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T22:13:32Z
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 0x641379c8fe3d70b5f9be5bb368960f7964656f629ec75cd7c1521cde04183caa. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/GBBBB9608537 — a six-check JSON result.
  date published: 2026-07-29T22:13:32Z
audio: Les Goûts-réünis - Concert No. 6 in B flat major: 4. Air de diable: Très vite
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Sonata in A major for Violin & Continuo, Op. 1 No. 14, HWV 372: 3. Largo
type: MusicRecording
duration: PT1M6S
duration ms: 66200
explicit: false
by artist: George Frideric Handel
by artist: Arthur Grumiaux
by artist: Robert Veyron-Lacroix
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
isrc code: NLA506600332
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600332
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b8f67c5892f5ae170d42cd781298d5652ce6f6fc696d87e1537e041ddd530d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600332 — a six-check JSON result.
  date published: 2026-07-30T06:39:12Z
audio: Sonata in A major for Violin & Continuo, Op. 1 No. 14, HWV 372: 3. Largo
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Sonata in E minor for Violin and Continuo, Op. 2/9 , RV 16: 4. Gavotta (Presto)
type: MusicRecording
duration: PT0M57S
duration ms: 57000
explicit: false
by artist: Antonio Vivaldi
by artist: Salvatore Accardo
by artist: Rohan De Saram
by artist: Bruno Canino
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLA507615332
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960258
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507615332
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:45:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d68885faa2fc7c0cc4915f0222b4c04112ea15dd3eed8fb022328de630b50c9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507615332 — a six-check JSON result.
  date published: 2026-07-30T12:45:34Z
audio: Sonata in E minor for Violin and Continuo, Op. 2/9 , RV 16: 4. Gavotta (Presto)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Trio Sonata in G minor for 2 Violins and Continuo, Op. 1/1 , RV 7 3: 5. Gavotte (Allegro)
type: MusicRecording
duration: PT0M52S
duration ms: 52000
explicit: false
by artist: Antonio Vivaldi
by artist: Salvatore Accardo
by artist: Franco Gulli
by artist: Rohan De Saram
by artist: Bruno Canino
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLA507615225
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507615225
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0e892a2274199859b5571051c06327fa794f0add7ad441a627acbe8d6ef1e5. 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/NLA507615225 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Trio Sonata in G minor for 2 Violins and Continuo, Op. 1/1 , RV 7 3: 5. Gavotte (Allegro)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Sonata in C, Op. 5, No. 9: 3. Adagio
type: MusicRecording
duration: PT0M32S
duration ms: 32133
explicit: false
by artist: Arcangelo Corelli
by artist: Michala Petri
by artist: George Malcolm
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA508320907
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508320907
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 0xbb2a10894a6adf73ae0c49b171c1e4488ffba511e2aab9ff4e004837e23439d7. 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/NLA508320907 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Sonata in C, Op. 5, No. 9: 3. Adagio
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Cello Sonata in E Minor, RV 40: II. Allegro
type: MusicRecording
duration: PT1M24S
duration ms: 84066
explicit: false
by artist: Antonio Vivaldi
by artist: János Starker
by artist: Stephen Swedish
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLA506600717
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600717
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bcc2702db9ec1d100559a88f067d58557039fd37bd92f11b3a9ff8ca4291095. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600717 — a six-check JSON result.
  date published: 2026-07-30T12:45:34Z
audio: Cello Sonata in E Minor, RV 40: II. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Invention No. 4 in D Minor, BWV 775
type: MusicRecording
duration: PT1M0S
duration ms: 60173
explicit: false
by artist: Johann Sebastian Bach
by artist: Janine Jansen
by artist: Maxim Rysanov
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBBBA0741440
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:35:09+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0741440
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 0x7a10faf11757e9895ddfda34d84ac2ce58edd9a3c3e94c43c952d8278e4a57cf. 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/GBBBA0741440 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Invention No. 4 in D Minor, BWV 775
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  additional property: Tempo (BPM)
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Trio Sonata for 2 Violins and Continuo in G, Op. 5, No. 4, HWV 399: 4. Gigue (Presto)
type: MusicRecording
duration: PT1M7S
duration ms: 67026
explicit: false
by artist: George Frideric Handel
by artist: Malcolm Latchem
by artist: Kenneth Sillito
by artist: Alan Cuckston
by artist: Denis Vigay
by artist: Academy of St. Martin in the Fields Chamber Ensemble
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
isrc code: NLA507805750
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507805750
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 0x6bb45886589557a05b3ea3c1e1ad549940b18af0a77533ce4a1168b10e009f20. 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/NLA507805750 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Trio Sonata for 2 Violins and Continuo in G, Op. 5, No. 4, HWV 399: 4. Gigue (Presto)
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  additional property: Tempo (BPM)
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  additional property: Valence (Positivity)
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  additional property: Mode Name
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Violin Sonata in A Major, Op. 1 No. 3, HWV 361: III. Adagio
type: MusicRecording
duration: PT0M46S
duration ms: 46933
explicit: false
by artist: George Frideric Handel
by artist: Elizabeth Wallfisch
by artist: Richard Tunnicliffe
by artist: Paul Nicholson
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
isrc code: GBAJY9492311
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9492311
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db914e9602c6020f05daed623463485303b87f6a742854a0bcc7662ae4521a3. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9492311 — a six-check JSON result.
  date published: 2026-07-30T12:51:24Z
audio: Violin Sonata in A Major, Op. 1 No. 3, HWV 361: III. Adagio
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Trio Sonata in A flat for 2 Violins and Continuo, Op. 1/9 , RV 75: 1. Preludio (Allegro)
type: MusicRecording
duration: PT0M44S
duration ms: 44000
explicit: false
by artist: Antonio Vivaldi
by artist: Salvatore Accardo
by artist: Franco Gulli
by artist: Rohan De Saram
by artist: Bruno Canino
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLA507615253
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507615253
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 0x25aa8f1d9e8fb409e67cabc26360123f1aa501cc6ab2b78e3f01e7c61437a826. 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/NLA507615253 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Trio Sonata in A flat for 2 Violins and Continuo, Op. 1/9 , RV 75: 1. Preludio (Allegro)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Invention No. 12 in A Major, BWV 783
type: MusicRecording
duration: PT1M17S
duration ms: 77000
explicit: false
by artist: Johann Sebastian Bach
by artist: Janine Jansen
by artist: Maxim Rysanov
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBBBA0741520
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0741520
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85a72d3a3409a05f2cf268dd887f9d4f8b30455d9fde367b3d2ea170c134d62. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0741520 — a six-check JSON result.
  date published: 2026-07-29T23:42:34Z
audio: Invention No. 12 in A Major, BWV 783
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Musical Offering, BWV 1079: Canon a 2
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duration: PT1M11S
duration ms: 71853
explicit: false
by artist: Johann Sebastian Bach
by artist: Ramin Bahrami
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: ITUM71501109
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d23fa084ef6f037697fa780f83f88f439e563c18ac090131e870dc36fdb68d1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM71501109 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Musical Offering, BWV 1079: Canon a 2
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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12 Violin Sonatas, Op. 5 / Sonata No. 10 in F Major: 3. Sarabande. Largo
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duration: PT1M18S
duration ms: 78000
explicit: false
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by artist: Arthur Grumiaux
by artist: Riccardo Castagnone
in album: 10 Great Composers: Baroque Masters
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  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA507400738
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562f98df190dde04fb956ab39633b995ae4a7d2a19504f2cafc944f1ef922d4a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLA507400738 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: 12 Violin Sonatas, Op. 5 / Sonata No. 10 in F Major: 3. Sarabande. Largo
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  additional property: Valence (Positivity)
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Trio Sonata for 2 Violins and Continuo in D, Op. 5, No. 2, HWV 397: 1. Adagio
type: MusicRecording
duration: PT0M56S
duration ms: 56493
explicit: false
by artist: George Frideric Handel
by artist: Kenneth Sillito
by artist: Malcolm Latchem
by artist: Alan Cuckston
by artist: Denis Vigay
by artist: Academy of St. Martin in the Fields Chamber Ensemble
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
isrc code: NLA507805735
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507805735
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 0x13b434682dac986e7026b9480c3363b05aa799abde98982e61d638d98637a11f. 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/NLA507805735 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Trio Sonata for 2 Violins and Continuo in D, Op. 5, No. 2, HWV 397: 1. Adagio
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Recorder Sonata in G minor, Op. 1, No. 2, HWV 360: III. Adagio
type: MusicRecording
duration: PT0M53S
duration ms: 53266
explicit: false
by artist: George Frideric Handel
by artist: Maxence Larrieu
by artist: Martine Geliot
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
isrc code: FRUM71601852
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM71601852
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 0x990926d877b880b9011ae246a5137fe2d431fa36335fb43016c3cc0cad368e31. 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/FRUM71601852 — a six-check JSON result.
  date published: 2026-07-30T08:30:10Z
audio: Recorder Sonata in G minor, Op. 1, No. 2, HWV 360: III. Adagio
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  additional property: Musical Key
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  additional property: Danceability
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Sonata in B minor, Op. 4, No. 12: 3. Giga (Allegro)
type: MusicRecording
duration: PT1M15S
duration ms: 75000
explicit: false
by artist: Arcangelo Corelli
by artist: Monica Huggett
by artist: Alison Bury
by artist: Hopkinson Smith
by artist: Ton Koopman
by artist: Jaap Ter Linden
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA508507328
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508507328
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 0xa3803b0201b35398de422dc611e056e5e244ff885d68aafa9552e2e08b60dfbc. 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/NLA508507328 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Sonata in B minor, Op. 4, No. 12: 3. Giga (Allegro)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Sonata in A for Violin and Continuo, Op. 2/2 , RV 31: 3. Adagio
type: MusicRecording
duration: PT1M11S
duration ms: 71333
explicit: false
by artist: Antonio Vivaldi
by artist: Arthur Grumiaux
by artist: Istvan Hajdu
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLA507400448
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05def5fef6dfd388d7e62feb201365e8a5f2bd08963f93459dc63f205f7674f9. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507400448 — a six-check JSON result.
  date published: 2026-07-30T06:39:12Z
audio: Sonata in A for Violin and Continuo, Op. 2/2 , RV 31: 3. Adagio
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Concerto for Strings in D Minor, RV 129 "Madrigalesco": III. [Allegro]
type: MusicRecording
duration: PT0M55S
duration ms: 55466
explicit: false
by artist: Antonio Vivaldi
by artist: Il Giardino Armonico
by artist: Giovanni Antonini
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: GBBBA0801454
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0801454
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b24bc64f4e82146552267955201c84273417ed08e1885f133433bdcf47e2646. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0801454 — a six-check JSON result.
  date published: 2026-07-30T05:43:45Z
audio: Concerto for Strings in D Minor, RV 129 "Madrigalesco": III. [Allegro]
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Key Name
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Sonata in G, Op. 1, No. 9: 3. Allegro
type: MusicRecording
duration: PT1M8S
duration ms: 68426
explicit: false
by artist: Arcangelo Corelli
by artist: Monica Huggett
by artist: Alison Bury
by artist: Hopkinson Smith
by artist: Ton Koopman
by artist: Jaap Ter Linden
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA508507303
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa804fd758cba69f5ecb71380535a619504eee59fc8610aa5292e7cd791697fb8. 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/NLA508507303 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Sonata in G, Op. 1, No. 9: 3. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
    type: PropertyValue
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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12 Violin Sonatas, Op. 5 / Sonata No. 3 in C Major: 4. Allegro
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duration ms: 75000
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by artist: Arcangelo Corelli
by artist: Arthur Grumiaux
by artist: Riccardo Castagnone
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA507400783
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: 12 Violin Sonatas, Op. 5 / Sonata No. 3 in C Major: 4. Allegro
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Trio Sonata for Flute, Violin and Continuo in E minor, Op. 5, No. 3, HWV 398: 5. Rondeau
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duration: PT1M18S
duration ms: 78973
explicit: false
by artist: George Frideric Handel
by artist: William Bennett
by artist: Kenneth Sillito
by artist: George Malcolm
by artist: Academy of St. Martin in the Fields Chamber Ensemble
by artist: Denis Vigay
in album: 10 Great Composers: Baroque Masters
  type: MusicAlbum
  date published: 2024-11-19
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
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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: 2026-07-30T12:06:10Z
audio: Trio Sonata for Flute, Violin and Continuo in E minor, Op. 5, No. 3, HWV 398: 5. Rondeau
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12 Violin Sonatas, Op. 5 / Sonata No. 11 in E Major: 1. Preludio. Adagio
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duration: PT1M17S
duration ms: 77000
explicit: false
by artist: Arcangelo Corelli
by artist: Arthur Grumiaux
by artist: Riccardo Castagnone
in album: 10 Great Composers: Baroque Masters
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  date published: 2024-11-19
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: 12 Violin Sonatas, Op. 5 / Sonata No. 11 in E Major: 1. Preludio. Adagio
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Musical Offering, BWV 1079: Canon perpetuus super thema regium
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duration: PT1M19S
duration ms: 79986
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by artist: Johann Sebastian Bach
by artist: Ramin Bahrami
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  date published: 2024-11-19
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d0aaec29f5dbd4c93712b9644d60ff01848177d4ae79f94ef6970726008469. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ITUM71501098 — a six-check JSON result.
  date published: 2026-07-30T15:42:38Z
audio: Musical Offering, BWV 1079: Canon perpetuus super thema regium
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Sonata in A, Op. 3, No. 12: 5. Allegro
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duration ms: 70173
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by artist: Monica Huggett
by artist: Alison Bury
by artist: Hopkinson Smith
by artist: Ton Koopman
by artist: Jaap Ter Linden
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genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  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 0x47f10af903d84d2bc594910bee82974c90a497527296fdae071ed794eea6853b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508507314 — a six-check JSON result.
  date published: 2026-07-29T21:09:47Z
audio: Sonata in A, Op. 3, No. 12: 5. Allegro
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Partita No. 6 in E flat major, TWV 51:es1: 2. Aria 1 (Presto)
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duration: PT0M47S
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by artist: Michala Petri
by artist: George Malcolm
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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 0x4a9577fe41abc708bf4697cd12d8d5c42e67703230046add6ab2d2cba9edd437. 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/NLA508401412 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Partita No. 6 in E flat major, TWV 51:es1: 2. Aria 1 (Presto)
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Sonata in A Major, Op. 6 No. 11: III. Adagio
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by artist: The Locatelli Trio
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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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track: Gloria, RV 589: I. Gloria in excelsis Deo

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Concerto for Strings in G Minor, RV 157: II. Largo
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Concerto alla Rustica for Strings in G Major, RV 151: I. Presto
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Concerto for Strings in D Minor, RV 129 "Madrigalesco": II. Adagio
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Bassoon Concerto in F major, RV.491: 2. Largo
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Concerto for Guitar and Strings in G minor, Op. 10, No. 2, R.439 - Arr. from Flute Concerto in G minor, Op. 10 No. 2, R.439: 6. Allegro
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Gloria, RV 589: I. Gloria in excelsis Deo
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2025 - A New Year Celebration with Vivaldi
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T18:48:12Z
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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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  subject of: OpenTimestamps Proof of Existence
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subject of: OpenTimestamps Proof of Existence
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fbda7ef820cab29962306c81c42d1e48120e1c8813cbd805bc04fe7455c9ca. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/DEN962136205 — a six-check JSON result.
  date published: 2026-07-29T15:38:18Z
audio: 12 Variations in C Major on "Ah, vous dirai-je Maman", K. 265/300e: Var. 4
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  additional property: Tempo (BPM)
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: -31.967
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Les petits riens, K.app.10 (ballet): Andante
type: MusicRecording
duration: PT1M52S
duration ms: 112813
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuttgart Chamber Orchestra
by artist: Karl Münchinger
in album: "Classical Inventions" - Bach, Mozart & Beethoven
  type: MusicAlbum
  date published: 2025-02-05
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF075641213
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T14:29:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xadb2106897c2f6bb7365bd2eaca823019febf9abd1b641db067fb1ca66c3856f
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/GBF075641213
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 0xadb2106897c2f6bb7365bd2eaca823019febf9abd1b641db067fb1ca66c3856f. 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/GBF075641213 — a six-check JSON result.
  date published: 2026-07-30T14:44:50Z
audio: Les petits riens, K.app.10 (ballet): Andante
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.197
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: -22.546
  additional property: Key Name
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Flute Sonata in G Minor, BWV 1020: 2. Adagio
type: MusicRecording
duration: PT2M57S
duration ms: 177360
explicit: false
by artist: Johann Sebastian Bach
by artist: Konrad Hünteler
by artist: Ton Koopman
in album: "Classical Inventions" - Bach, Mozart & Beethoven
  type: MusicAlbum
  date published: 2025-02-05
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: NLA508314611
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T14:50:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0464e04655f2b85a170b2726f2e5db85e44497f0596a0fbc565ff2862282532
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508314611
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38Z
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 0xa0464e04655f2b85a170b2726f2e5db85e44497f0596a0fbc565ff2862282532. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLA508314611 — a six-check JSON result.
  date published: 2026-07-30T15:42:38Z
audio: Flute Sonata in G Minor, BWV 1020: 2. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 79.653
  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: 0.168
  additional property: Energy
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    value: 0.096
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.948
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
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12 Minuets, WoO 7: 12. Minuet in F Major
type: MusicRecording
duration: PT2M10S
duration ms: 130933
explicit: false
by artist: Ludwig van Beethoven
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: "Classical Inventions" - Bach, Mozart & Beethoven
  type: MusicAlbum
  date published: 2025-02-05
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: NLA507712212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf8ccf852218e1d0bca25ebe4d915bdeb08b2b135471a8b64c5064e02e6b05ae5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960203
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507712212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T03:35:13Z
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 0xf8ccf852218e1d0bca25ebe4d915bdeb08b2b135471a8b64c5064e02e6b05ae5. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NLA507712212 — a six-check JSON result.
  date published: 2026-07-30T03:35:13Z
audio: 12 Minuets, WoO 7: 12. Minuet in F Major
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 131.412
  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: 0.52
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.175
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.381
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.023
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Symphony No. 9 in D minor, Op. 125 - "Choral" - 4.: Allegro assai -
type: MusicRecording
duration: PT2M39S
duration ms: 159000
explicit: false
by artist: Ludwig van Beethoven
by artist: Orchestra Of The 18th Century
by artist: Frans Brüggen
in album: "Classical Inventions" - Bach, Mozart & Beethoven
  type: MusicAlbum
  date published: 2025-02-05
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: NLA509104913
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa2b3dff816e344a021ace7bb807500761288d9efbbd15b0ae038ac5f39e3079c
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960150
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509104913
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:51:49Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b3dff816e344a021ace7bb807500761288d9efbbd15b0ae038ac5f39e3079c. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509104913 — a six-check JSON result.
  date published: 2026-07-29T21:51:49Z
audio: Symphony No. 9 in D minor, Op. 125 - "Choral" - 4.: Allegro assai -
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.203
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.332
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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The Well-Tempered Clavier, Book 1: Fugue No. 17 in A-Flat Major, BWV 862/2
type: MusicRecording
duration: PT2M51S
duration ms: 171373
explicit: false
by artist: Johann Sebastian Bach
by artist: Trevor Pinnock
in album: "Classical Inventions" - Bach, Mozart & Beethoven
  type: MusicAlbum
  date published: 2025-02-05
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEN961930434
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T03:41:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfaf2f8b99648282a780a6a052cb32e22e5ef102b6a243ed3946cc987708f6ada
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/DEN961930434
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 0xfaf2f8b99648282a780a6a052cb32e22e5ef102b6a243ed3946cc987708f6ada. 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/DEN961930434 — a six-check JSON result.
  date published: 2026-07-30T04:47:22Z
audio: The Well-Tempered Clavier, Book 1: Fugue No. 17 in A-Flat Major, BWV 862/2
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 120.746
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.566
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.536
  additional property: Key Name
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  additional property: Mode Name
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Les petits riens, K.app.10 (ballet): Gavotte gracieuse
type: MusicRecording
duration: PT0M44S
duration ms: 44666
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuttgart Chamber Orchestra
by artist: Karl Münchinger
in album: "Classical Inventions" - Bach, Mozart & Beethoven
  type: MusicAlbum
  date published: 2025-02-05
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBF075641209
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075641209
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 0x351cad4824e26959293b041c32b91e3a0a4a9f393b1f92974638a4d0ada2f621. 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/GBF075641209 — a six-check JSON result.
  date published: 2026-07-30T08:30:10Z
audio: Les petits riens, K.app.10 (ballet): Gavotte gracieuse
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.479
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.466
  additional property: Energy
    type: PropertyValue
    value: 0.166
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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12 Minuets, WoO 7: 3. Minuet in G Major
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by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
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genre: classical
genre: classical-piano
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:36:16Z
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Contredanse in C Major. La Bataille, K. 535
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by artist: Orpheus Chamber Orchestra
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genre: classical-piano
genre: opera
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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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Sonate pour viole de gambe et clavecin no.2 in D Major, BWV 1028: I. Adagio
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by artist: Johann Sebastian Bach
by artist: Mélisande Corriveau
by artist: Eric Milnes
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genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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: Sonate pour viole de gambe et clavecin no.2 in D Major, BWV 1028: I. Adagio
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Partita No. 1 In B Minor Bwv 1002 6. Double
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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
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String Quartet No. 14 in C-Sharp Minor, Op. 131: 6. Adagio quasi un poco andante
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by artist: Hagen Quartett
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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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Andante for Flute and Orchestra in C Major, K. 315 - Pt. 2
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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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