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genre: classical
description: thumb|Oistrakh in 1954 David Fyodorovich Oistrakh ( – 24 October 1974) was a Soviet Russian violinist, violist, and conductor. He was also Professor at the Moscow Conservatory, People's Artist of the
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album: Dimitri Mitropoulos conducts Shostakovitch
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  date published: 2021-11-19
album: David Oistrakh Plays Violin Works by Vivaldi: Concertos Rv 551, 514 / Leclair: Violin Sonata, Op. 9 No. 3 / Mozart: Sinfonia Concertante, K.364
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album: Beethoven: Violin Concerto in D Major, Op. 61 & Violin Sonata No. 7 in C Minor, Op. 30 No. 2 (Live)
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  track: Introduction et rondo capriccioso, Op. 28 - 2022 Remastered Version
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    audio: Introduction et rondo capriccioso, Op. 28 - 2022 Remastered Version
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album: David Oistrakh & Isaac Stern Play Bach & Vivaldi
album: Beethoven and Sibelius Violin Concertos
album: David Oistrakh - Violin Masterclass
album: The Violin Master
album: Violin Masterpieces: David Oistrakh Plays Beethoven & Sibelius
album: Oistrakh Collection, Vol. 11: The Beethoven Violin Sonatas (Live)
album: Beethoven: Violin Concerto David Oistrakh conducted by Franz Konwitschny (Live)
album: A. Khachaturian: Violin Concerto - Prokofiev, K. Khachaturian & Szymanowski: Violin Sonatas (Remastered 2024)
album: Lalo: Symphonie espagnole - Beethoven & Sibelius: Violin Concertos
album: Paganini Violin Music
album: Prokofiev: Violin Concerto No. 1, Op. 19 - Bruch: Violin Concerto No. 1, Op. 26
album: Sviatoslav Richter Plays Piano Works by Beethoven: Triple Concerto, Op. 56 & Piano Concerto No. 3, Op. 37
album: Mozart: Violin Concerto No. 3, K. 216 - Prokofiev: Violin Concerto No. 2, Op. 63 (Remastered)
album: Taneyev: Concert Suite, Op. 28 - Tartini: "Devil's Trill" Sonata - Mozart: Violin Sonata No. 32, K. 454
album: Beethoven: Piano Trio No. 7, Op. 97 "Archduke" - Schubert: Piano Trio No. 1, D. 898 & Octet in F Major, D. 803 (Remastered 2024)
album: Brahms: Violin Concerto, Op. 77 & Double Concerto for Violin and Cello, Op. 102 (Remastered 2024)
album: Mozart: Violin Concertos Nos. 1, 3 & 5 "Turkish" (Remastered 2024)
album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
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album: Beethoven & Brahms: Two Concertos
album: David Oistrakh Plays Beethoven
album: Bach: Violin Sonatas Nos. 1-6, BWVV 1014-1019
album: Beethoven: Violin Sonatas Nos. 5 & 9
album: Tchaikovsky: Piano Concerto No. 1 in B-Flat Minor, Op. 23, TH 55 & Violin Concerto in D Major, Op. 35, TH 59 (Live)
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album: Prokofiev, Scriabin & Others: Works for Violin & Piano (Live)
album: Mozart: Works for Violin & Orchestra (Live)
album: Mozart: Violin Sonatas Nos. 27 and 32 & Violin Concerto No. 1 (Live)
album: Mozart: Violin Concertos Nos. 3 and 4 & Violin Sonata No. 23
album: Smetana: Piano Trio, Op. 15 - Dvořák: Symphony No. 9, Op. 95 "From the New World"
album: Shostakovich: Piano Trio No. 2, Op. 67 & Violin Concerto No. 1, Op. 77 (Live)
album: Dvořák: Violin Concerto in A Minor, Op. 53, B. 108 & Piano Trio No. 4 in E Minor, Op. 90, B. 166 "Dumky"
album: Schubert, Falla & Debussy: Violin Works
album: Ravel, Beethoven & Godard: Violin Works
album: Locatelli, Vieuxtemps & Others: Works (Live)
album: Chopin & Beethoven: Piano Trio, Violin Sonata & Other Works
album: Chausson, Daquin & Others: Violin Works (Live)
album: Violin Concertos: Joseph Haydn, Michael Haydn, Wolfgang Amadeus Mozart, Pjotr Ilyich Tchaikovsky (Classical Masterpieces)
album: Corelli: Concerto Grossi No. 1 - 4
track: Concerto for Violin, Strings & Continuo No. 2 in E Major, BWV1042
track: Beethoven: Violin Concerto in D Major, Op. 61: II. Larghetto
track: Concerto for Violin and Orchestra in D Major, Op. 61: II. Larghetto
track: Double Concerto for 2 Violins, Strings, and Continuo in D Minor, BWV 1043: II. Largo ma non tanto
track: Violin Concerto No. 2 in E Major, BWV 1042: II. Adagio

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David Oistrakh & Isaac Stern Play Bach & Vivaldi
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Beethoven and Sibelius Violin Concertos
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David Oistrakh - Violin Masterclass
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The Violin Master
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track: Prokofiev: Violin Concerto No. 1 in D Major, Op. 19: II. Scherzo. Vivacissimo
track: Shostakovich: Violin Concerto No. 1 in A Minor, Op. 99: IV. Burlesque. Allegro con brio
track: Prokofiev: Violin Sonata No. 2 in D Major, Op. 94bis: III. Andante
track: Beethoven: Violin Sonata No. 3 in E-Flat Major, Op. 12 No. 3: III. Rondo. Allegro molto
track: Debussy / Arr. Roelens: Suite bergamasque, CD 82, L. 75: III. Clair de lune
track: Tchaikovsky / Arr. Bezekirsky for Violin and Piano: Waltz-Scherzo in C Major, Op. 34
track: Brahms: Violin Sonata No. 3 in D Minor, Op. 108: II. Adagio
track: Suk / Arr. Kocián for Violin and Piano: 6 Piano Pieces, Op. 7: No. 1, Liebeslied

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date published: 2026-07-31T09:50:11Z

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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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subject of: OpenTimestamps Proof of Existence
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Mozart: Violin Concerto No. 2 in D Major, K. 211: III. Rondeau. Allegro
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8904015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
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 0x55c4bf3515ac9bf3ccde1dc851125dc3454d2e2ca3d51837ca743d6041515a45. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8904015 — a six-check JSON result.
  date published: 2026-07-31T02:19:15Z
audio: Mozart: Violin Concerto No. 2 in D Major, K. 211: III. Rondeau. Allegro
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  additional property: Valence (Positivity)
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Prokofiev: Violin Concerto No. 1 in D Major, Op. 19: II. Scherzo. Vivacissimo
type: MusicRecording
duration: PT3M56S
duration ms: 236186
explicit: false
by artist: Sergei Prokofiev
by artist: David Oistrakh
by artist: London Symphony Orchestra
by artist: Lovro Von Matacic
in album: The Violin Master
  type: MusicAlbum
  date published: 2024-10-12
genre: classical
genre: orchestra
genre: neoclassical
isrc code: GBAYC0400601
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0400601
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xbb7440ab6e7792c0bf6f900640579c30877bf80ec8376d2e2b9335096eb18dbc. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0400601 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Prokofiev: Violin Concerto No. 1 in D Major, Op. 19: II. Scherzo. Vivacissimo
  type: AudioObject
  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
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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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Shostakovich: Violin Concerto No. 1 in A Minor, Op. 99: IV. Burlesque. Allegro con brio
type: MusicRecording
duration: PT5M6S
duration ms: 306306
explicit: false
by artist: Dmitri Shostakovich
by artist: David Oistrakh
by artist: New Philharmonia Orchestra
by artist: Maxim Shostakovich
in album: The Violin Master
  type: MusicAlbum
  date published: 2024-10-12
isrc code: GBAYC0500118
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0500118
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 0x3d3228ce5244ae5ea4beb0fc24301701b8f735fcb00b3b78a0c58cae20bd3a06. 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/GBAYC0500118 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Shostakovich: Violin Concerto No. 1 in A Minor, Op. 99: IV. Burlesque. Allegro con brio
  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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Prokofiev: Violin Sonata No. 2 in D Major, Op. 94bis: III. Andante
type: MusicRecording
duration: PT3M52S
duration ms: 232133
explicit: false
by artist: Sergei Prokofiev
by artist: Vladimir Yampolsky
by artist: David Oistrakh
in album: The Violin Master
  type: MusicAlbum
  date published: 2024-10-12
genre: classical
genre: orchestra
genre: neoclassical
isrc code: GBAYC0400797
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/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0400797
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
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 0xdc596e22b889283863340a48e70466d02cfd611afa59f0d2c511127fe959ba6d. 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/GBAYC0400797 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Prokofiev: Violin Sonata No. 2 in D Major, Op. 94bis: III. 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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    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)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Beethoven: Violin Sonata No. 3 in E-Flat Major, Op. 12 No. 3: III. Rondo. Allegro molto
type: MusicRecording
duration: PT4M22S
duration ms: 262986
explicit: false
by artist: Ludwig van Beethoven
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: The Violin Master
  type: MusicAlbum
  date published: 2024-10-12
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBAYC0800623
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/GBAYC0800623
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xb8d2d27fc314f696d58da6db60c4d981a60bf5347c02d59e054ec20e87062ec8. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0800623 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Beethoven: Violin Sonata No. 3 in E-Flat Major, Op. 12 No. 3: III. Rondo. Allegro molto
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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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    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)
    type: PropertyValue
    value: -17.018
  additional property: Key Name
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  additional property: Mode Name
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Debussy / Arr. Roelens: Suite bergamasque, CD 82, L. 75: III. Clair de lune
type: MusicRecording
duration: PT4M40S
duration ms: 280293
explicit: false
by artist: Claude Debussy
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: The Violin Master
  type: MusicAlbum
  date published: 2024-10-12
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: GBAYC0202469
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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  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0202469
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 0xd2d9b86a8c5b9dcd4f20a1e136f70881f261b3cb66df5bfee5b7823dd0d5cd61. 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/GBAYC0202469 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Debussy / Arr. Roelens: Suite bergamasque, CD 82, L. 75: III. Clair de lune
  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: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Tchaikovsky / Arr. Bezekirsky for Violin and Piano: Waltz-Scherzo in C Major, Op. 34
type: MusicRecording
duration: PT5M28S
duration ms: 328760
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: The Violin Master
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  date published: 2024-10-12
isrc code: GBAYC0202473
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/960459
additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:22:46Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cf20188779d43cb7fa6ce82bbbccfe6d0c606a64bc116f569ffb427b731044. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0202473 — a six-check JSON result.
  date published: 2026-07-31T20:22:46Z
audio: Tchaikovsky / Arr. Bezekirsky for Violin and Piano: Waltz-Scherzo in C Major, Op. 34
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 121.825
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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Oistrakh Collection, Vol. 11: The Beethoven Violin Sonatas (Live)
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Beethoven: Violin Concerto David Oistrakh conducted by Franz Konwitschny (Live)
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track: Prokofiev: Violin Sonata No. 2 in D Major, Op. 94bis: I. Moderato
track: Prokofiev: Violin Sonata No. 2 in D Major, Op. 94bis: II. Scherzo. Presto - Poco più mosso
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track: Khachaturian: Violin Sonata in G Minor, Op. 1: I. Allegro - Meno mosso
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Prokofiev: Violin Sonata No. 2 in D Major, Op. 94bis: II. Scherzo. Presto - Poco più mosso
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by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: A. Khachaturian: Violin Concerto - Prokofiev, K. Khachaturian & Szymanowski: Violin Sonatas (Remastered 2024)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
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by artist: Vladimir Yampolsky
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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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Prokofiev: Violin Sonata No. 2 in D Major, Op. 94bis: IV. Allegro con brio - Poco meno mosso
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by artist: David Oistrakh
by artist: Vladimir Yampolsky
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: Prokofiev: Violin Sonata No. 2 in D Major, Op. 94bis: IV. Allegro con brio - Poco meno mosso
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Khachaturian: Violin Sonata in G Minor, Op. 1: I. Allegro - Meno mosso
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by artist: David Oistrakh
by artist: Vladimir Yampolsky
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T00:40:43Z
audio: Khachaturian: Violin Sonata in G Minor, Op. 1: I. Allegro - Meno mosso
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Khachaturian: Violin Sonata in G Minor, Op. 1: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Khachaturian: Violin Sonata in G Minor, Op. 1: III. Presto - Andantino
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
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Szymanowski: Violin Sonata in D Minor, Op. 9: I. Allegro moderato
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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 0xac2695730eb94d906bc3671bfde97729d09b48e797beabc802038d52051619ee. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBAYC2400067 — a six-check JSON result.
  date published: 2026-08-01T03:13:03Z
audio: Szymanowski: Violin Sonata in D Minor, Op. 9: I. Allegro moderato
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Lalo: Symphonie espagnole - Beethoven & Sibelius: Violin Concertos
type: MusicAlbum
date published: 2025-01-07
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  by artist: Édouard Lalo
  by artist: David Oistrakh
  by artist: Jean Martinon
  by artist: Philharmonia Orchestra
  in album: Lalo: Symphonie espagnole - Beethoven & Sibelius: Violin Concertos
    type: MusicAlbum
    date published: 2025-01-07
  genre: classical
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400077
  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 0x912910dc21687d81897f585285ab325adba9133c6d6f87e7a1c166ee1d0993a9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400077 — a six-check JSON result.
    date published: 2026-07-29T19:35:34Z
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track: Lalo: Symphonie espagnole in D Minor, Op. 21: II. Scherzando
  type: MusicRecording
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  by artist: Édouard Lalo
  by artist: David Oistrakh
  by artist: Jean Martinon
  by artist: Philharmonia Orchestra
  in album: Lalo: Symphonie espagnole - Beethoven & Sibelius: Violin Concertos
    type: MusicAlbum
    date published: 2025-01-07
  genre: classical
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  additional property: OTSVerificationAPI
    type: PropertyValue
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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 0xa11a2a70c58c680b9a0f857c6a0df8bf460b25629360a7d0f40e7065eda6f625. 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/GBAYC2400078 — a six-check JSON result.
    date published: 2026-07-08T03:22:41Z
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track: Lalo: Symphonie espagnole in D Minor, Op. 21: III. Intermezzo
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  by artist: Édouard Lalo
  by artist: David Oistrakh
  by artist: Jean Martinon
  by artist: Philharmonia Orchestra
  in album: Lalo: Symphonie espagnole - Beethoven & Sibelius: Violin Concertos
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    date published: 2025-01-07
  genre: classical
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Lalo: Symphonie espagnole in D Minor, Op. 21: III. Intermezzo
track: Lalo: Symphonie espagnole in D Minor, Op. 21: IV. Andante
track: Lalo: Symphonie espagnole in D Minor, Op. 21: V. Rondo
track: Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo
track: Beethoven: Violin Concerto in D Major, Op. 61: II. Larghetto
track: Beethoven: Violin Concerto in D Major, Op. 61: III. Rondo. Allegro
track: Sibelius: Violin Concerto in D Minor, Op. 47: I. Allegro moderato
track: Sibelius: Violin Concerto in D Minor, Op. 47: II. Adagio di molto
track: Sibelius: Violin Concerto in D Minor, Op. 47: III. Allegro ma non tanto

CopyrightChainExplorerURL
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
type: PropertyValue
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OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400079

OTSTimestamp
type: PropertyValue
value: 2026-07-30T17:23:26Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d7ed5af7e81898b3f8eee2a263ae6a758a639d6ed54fb06892b9214f3a2e4e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400079 — a six-check JSON result.
date published: 2026-07-30T17:23:26Z

Lalo: Symphonie espagnole in D Minor, Op. 21: III. Intermezzo
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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: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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Lalo: Symphonie espagnole in D Minor, Op. 21: IV. Andante
type: MusicRecording
duration: PT7M33S
duration ms: 453240
explicit: false
by artist: Édouard Lalo
by artist: David Oistrakh
by artist: Jean Martinon
by artist: Philharmonia Orchestra
in album: Lalo: Symphonie espagnole - Beethoven & Sibelius: Violin Concertos
  type: MusicAlbum
  date published: 2025-01-07
genre: classical
isrc code: GBAYC2400080
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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 0xb416b21dccdbb10ef7f316564d0136ff8e7118b193dbf5c12af765d1fb5203c9. 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/GBAYC2400080 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: Lalo: Symphonie espagnole in D Minor, Op. 21: IV. Andante
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Lalo: Symphonie espagnole in D Minor, Op. 21: V. Rondo
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duration: PT8M43S
duration ms: 523840
explicit: false
by artist: Édouard Lalo
by artist: David Oistrakh
by artist: Jean Martinon
by artist: Philharmonia Orchestra
in album: Lalo: Symphonie espagnole - Beethoven & Sibelius: Violin Concertos
  type: MusicAlbum
  date published: 2025-01-07
genre: classical
isrc code: GBAYC2400081
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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 0x4d59536be7e17073cb54949a8a03bd100036202bff58be4a790749f4ddfe429f. 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/GBAYC2400081 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Lalo: Symphonie espagnole in D Minor, Op. 21: V. Rondo
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo
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duration: PT24M15S
duration ms: 1455786
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by artist: Stockholm Festival Orchestra
in album: Lalo: Symphonie espagnole - Beethoven & Sibelius: Violin Concertos
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  date published: 2025-01-07
genre: classical
genre: classical-piano
genre: chamber-music
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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
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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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Beethoven: Violin Concerto in D Major, Op. 61: III. Rondo. Allegro
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Sibelius: Violin Concerto in D Minor, Op. 47: I. Allegro moderato
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Sibelius: Violin Concerto in D Minor, Op. 47: II. Adagio di molto
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Sibelius: Violin Concerto in D Minor, Op. 47: III. Allegro ma non tanto
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track: Variations on the G String on a Theme from Rossini’s Mosè

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Prokofiev: Violin Concerto No. 1, Op. 19 - Bruch: Violin Concerto No. 1, Op. 26
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  subject of: OpenTimestamps Proof of Existence
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track: Prokofiev: Violin Concerto No. 1 in D Major, Op. 19: II. Scherzo. Vivacissimo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Prokofiev: Violin Concerto No. 1 in D Major, Op. 19: III. Moderato
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Sviatoslav Richter Plays Piano Works by Beethoven: Triple Concerto, Op. 56 & Piano Concerto No. 3, Op. 37
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-29T22:48:59Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T09:09:19Z
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track: Triple Concerto for Viloin, Cello & Piano in C Major, Op. 56: III. Rondo alla polacca
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  audio: Triple Concerto for Viloin, Cello & Piano in C Major, Op. 56: III. Rondo alla polacca
track: Piano Concerto No. 3 in C Minor, Op. 37: I. Allegro con brio
track: Piano Concerto No. 3 in C Minor, Op. 37: II. Largo

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OpenTimestamps Proof of Existence
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date published: 2026-07-30T18:23:33Z

Triple Concerto for Viloin, Cello & Piano in C Major, Op. 56: III. Rondo alla polacca
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Piano Concerto No. 3 in C Minor, Op. 37: I. Allegro con brio
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track: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (a) Tema con variazioni. Tema. Andantino
track: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (b) Variation I. Allegro moderato
track: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (c) Variation II. Allegro energico
track: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (d) Variation III. Tempo di valse
track: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (e) Variation IV. Fuga doppia
track: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (f) Variation V. Presto scherzando
track: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (g) Variation VI. Tempo di Mazurka
track: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (h) Variazione finale e coda
track: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: V. Tarantella. Presto
track: Tartini: Violin Sonata in G Minor "Devil's Trill": I. Larghetto affetuoso (Arr. Kreisler)
track: Tartini: Violin Sonata in G Minor "Devil's Trill": II. Allegro. Tempo giusto della scuole tartinista (Arr. Kreisler)
track: Tartini: Violin Sonata in G Minor "Devil's Trill": III. Andante - Allegro (Arr. Kreisler)
track: Tartini: Violin Sonata in G Minor "Devil's Trill": IV. Cadenza - Adagio (Arr. Kreisler)
track: Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: I. Largo - Allegro
track: Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: II. Andante
track: Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: III. Allegretto

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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 0x6212f9e29674106d42a37d3ab39cae858d00db6107d2da1829e80ac0b1d8e27e. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBAYC2400227 — a six-check JSON result.
  date published: 2026-07-30T01:32:48Z
audio: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (b) Variation I. Allegro moderato
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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    value: 0.968
  additional property: Instrumentalness
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    value: 0.835
  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.514
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.781
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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    value: Major

Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (c) Variation II. Allegro energico
type: MusicRecording
duration: PT1M36S
duration ms: 96866
explicit: false
by artist: Sergei Taneyev
by artist: David Oistrakh
by artist: Philharmonia Orchestra
by artist: Nikolai Malko
in album: Taneyev: Concert Suite, Op. 28 - Tartini: "Devil's Trill" Sonata - Mozart: Violin Sonata No. 32, K. 454
  type: MusicAlbum
  date published: 2025-01-16
isrc code: GBAYC2400228
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T16:22:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf4bd9325cfb8882aec0d2398a440c4616b62726f236b3a8b3d04d6cccdea8fd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400228
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34Z
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 0xbf4bd9325cfb8882aec0d2398a440c4616b62726f236b3a8b3d04d6cccdea8fd. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400228 — a six-check JSON result.
  date published: 2026-07-29T19:35:34Z
audio: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (c) Variation II. Allegro energico
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 167.032
  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: 0.342
  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
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.397
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.223
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (d) Variation III. Tempo di valse
type: MusicRecording
duration: PT2M4S
duration ms: 124653
explicit: false
by artist: Sergei Taneyev
by artist: David Oistrakh
by artist: Philharmonia Orchestra
by artist: Nikolai Malko
in album: Taneyev: Concert Suite, Op. 28 - Tartini: "Devil's Trill" Sonata - Mozart: Violin Sonata No. 32, K. 454
  type: MusicAlbum
  date published: 2025-01-16
isrc code: GBAYC2400229
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:24:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x53533cabda2abb07232b4c33d2c21216d01aa911654240645bb9ce17c73fba84
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400229
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 0x53533cabda2abb07232b4c33d2c21216d01aa911654240645bb9ce17c73fba84. 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/GBAYC2400229 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (d) Variation III. Tempo di valse
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.596
  additional property: Musical Key
    type: PropertyValue
    value: 9
  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: 0.193
  additional property: Energy
    type: PropertyValue
    value: 0.111
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.076
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.181
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.42
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
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Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (e) Variation IV. Fuga doppia
type: MusicRecording
duration: PT2M10S
duration ms: 130293
explicit: false
by artist: Sergei Taneyev
by artist: David Oistrakh
by artist: Philharmonia Orchestra
by artist: Nikolai Malko
in album: Taneyev: Concert Suite, Op. 28 - Tartini: "Devil's Trill" Sonata - Mozart: Violin Sonata No. 32, K. 454
  type: MusicAlbum
  date published: 2025-01-16
isrc code: GBAYC2400230
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T06:15:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b431538c96f971a5ecd5a9a8aeb9e057ca42bb0e16eec48bd56a7310bfa4ba7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400230
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b431538c96f971a5ecd5a9a8aeb9e057ca42bb0e16eec48bd56a7310bfa4ba7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400230 — a six-check JSON result.
  date published: 2026-07-06T06:56:49Z
audio: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (e) Variation IV. Fuga doppia
  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
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.376
  additional property: Energy
    type: PropertyValue
    value: 0.269
  additional property: Speechiness
    type: PropertyValue
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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
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.361
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.192
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (f) Variation V. Presto scherzando
type: MusicRecording
duration: PT0M51S
duration ms: 51413
explicit: false
by artist: Sergei Taneyev
by artist: David Oistrakh
by artist: Philharmonia Orchestra
by artist: Nikolai Malko
in album: Taneyev: Concert Suite, Op. 28 - Tartini: "Devil's Trill" Sonata - Mozart: Violin Sonata No. 32, K. 454
  type: MusicAlbum
  date published: 2025-01-16
isrc code: GBAYC2400231
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T08:41:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6bacd808d4acf698d5ffcc43bcad2a89550f46f5b82126a31280001213191147
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960376
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400231
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:09:19Z
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 0x6bacd808d4acf698d5ffcc43bcad2a89550f46f5b82126a31280001213191147. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/GBAYC2400231 — a six-check JSON result.
  date published: 2026-07-31T09:09:19Z
audio: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (f) Variation V. Presto scherzando
  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
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.556
  additional property: Energy
    type: PropertyValue
    value: 0.261
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.016
  additional property: Liveness
    type: PropertyValue
    value: 0.203
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.914
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.867
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (g) Variation VI. Tempo di Mazurka
type: MusicRecording
duration: PT1M26S
duration ms: 86440
explicit: false
by artist: Sergei Taneyev
by artist: David Oistrakh
by artist: Philharmonia Orchestra
by artist: Nikolai Malko
in album: Taneyev: Concert Suite, Op. 28 - Tartini: "Devil's Trill" Sonata - Mozart: Violin Sonata No. 32, K. 454
  type: MusicAlbum
  date published: 2025-01-16
isrc code: GBAYC2400232
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T01:28:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xccb9ce3792740db97f33b09ed7d9b561985f24b6f431f17458266ce58ca28437
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400232
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
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 0xccb9ce3792740db97f33b09ed7d9b561985f24b6f431f17458266ce58ca28437. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400232 — a six-check JSON result.
  date published: 2026-07-31T02:19:15Z
audio: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (g) Variation VI. Tempo di Mazurka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.132
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.615
  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)
    type: PropertyValue
    value: 0.374
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.89
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
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Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (h) Variazione finale e coda
type: MusicRecording
duration: PT4M25S
duration ms: 265346
explicit: false
by artist: Sergei Taneyev
by artist: David Oistrakh
by artist: Philharmonia Orchestra
by artist: Nikolai Malko
in album: Taneyev: Concert Suite, Op. 28 - Tartini: "Devil's Trill" Sonata - Mozart: Violin Sonata No. 32, K. 454
  type: MusicAlbum
  date published: 2025-01-16
isrc code: GBAYC2400233
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:13:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb24d68ca7d5423e46546969a99fe0262fa20cbe8875d29b1863184e53afac97
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400233
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 0xbb24d68ca7d5423e46546969a99fe0262fa20cbe8875d29b1863184e53afac97. 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/GBAYC2400233 — a six-check JSON result.
  date published: 2026-07-30T08:30:10Z
audio: Taneyev: Concert Suite for Violin and Orchestra, Op. 28: IV. (h) Variazione finale e coda
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.737
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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by artist: David Oistrakh
by artist: Philharmonia Orchestra
by artist: Nikolai Malko
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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: 2026-07-31T19:53:13Z
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Tartini: Violin Sonata in G Minor "Devil's Trill": I. Larghetto affetuoso (Arr. Kreisler)
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by artist: Vladimir Yampolsky
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genre: classical
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Tartini: Violin Sonata in G Minor "Devil's Trill": I. Larghetto affetuoso (Arr. Kreisler)
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Tartini: Violin Sonata in G Minor "Devil's Trill": II. Allegro. Tempo giusto della scuole tartinista (Arr. Kreisler)
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by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Taneyev: Concert Suite, Op. 28 - Tartini: "Devil's Trill" Sonata - Mozart: Violin Sonata No. 32, K. 454
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  date published: 2025-01-16
genre: classical
genre: baroque
genre: italian-baroque
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T13:04:34Z
audio: Tartini: Violin Sonata in G Minor "Devil's Trill": II. Allegro. Tempo giusto della scuole tartinista (Arr. Kreisler)
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Tartini: Violin Sonata in G Minor "Devil's Trill": III. Andante - Allegro (Arr. Kreisler)
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by artist: Giuseppe Tartini
by artist: David Oistrakh
by artist: Vladimir Yampolsky
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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: Tartini: Violin Sonata in G Minor "Devil's Trill": III. Andante - Allegro (Arr. Kreisler)
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Tartini: Violin Sonata in G Minor "Devil's Trill": IV. Cadenza - Adagio (Arr. Kreisler)
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duration: PT2M59S
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Tartini: Violin Sonata in G Minor "Devil's Trill": IV. Cadenza - Adagio (Arr. Kreisler)
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Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: I. Largo - Allegro
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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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Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: II. Andante
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d3cf762eb3cfb4638d0963a34b7ef9ec072fd4add3420f4b1530f1bb47703a. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400116 — a six-check JSON result.
  date published: 2026-08-01T02:22:04Z
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by artist: David Oistrakh
by artist: Vladimir Yampolsky
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genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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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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type: MusicAlbum
date published: 2024-12-18
track: Beethoven: Piano Trio No. 7 in B-Flat Major, Op. 97 "Archduke": I. Allegro moderato
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  genre: classical
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30802ac6a24b803ed763c2a740647f9ebac605456c11fa210420ddd257bb1d1. 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/GBAYC2400137 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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track: Beethoven: Piano Trio No. 7 in B-Flat Major, Op. 97 "Archduke": II. Scherzo. Allegro - Coda
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  genre: classical
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  additional property: OTSVerificationAPI
    type: PropertyValue
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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 0x6abb5afd41f5389cc3743796885bd3437757e4972d36cff81df2702e44512d22. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400138 — a six-check JSON result.
    date published: 2026-07-31T16:33:26Z
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track: Beethoven: Piano Trio No. 7 in B-Flat Major, Op. 97 "Archduke": III. Andante cantabile
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  genre: classical
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  subject of: OpenTimestamps Proof of Existence
  audio: Beethoven: Piano Trio No. 7 in B-Flat Major, Op. 97 "Archduke": III. Andante cantabile
track: Beethoven: Piano Trio No. 7 in B-Flat Major, Op. 97 "Archduke": IV. Allegro moderato - Presto
track: Schubert: Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: I. Allegro moderato
track: Schubert: Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: II. Andante un poco mosso
track: Schubert: Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: III. Scherzo
track: Schubert: Octet in F Major, Op. 166, D. 803: I. Adagio - Allegro

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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400139

OTSTimestamp
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value: 2026-08-01T03:13:03Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d90d3c939b7efc37e98c2c7795ee06a617c574ca59e5693b3c56771c827eb0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBAYC2400139 — a six-check JSON result.
date published: 2026-08-01T03:13:03Z

Beethoven: Piano Trio No. 7 in B-Flat Major, Op. 97 "Archduke": III. Andante cantabile
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Beethoven: Piano Trio No. 7 in B-Flat Major, Op. 97 "Archduke": IV. Allegro moderato - Presto
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by artist: David Oistrakh
by artist: Sviatoslav Knushevitsky
by artist: Lev Oborin
in album: Beethoven: Piano Trio No. 7, Op. 97 "Archduke" - Schubert: Piano Trio No. 1, D. 898 & Octet in F Major, D. 803 (Remastered 2024)
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genre: classical
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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: 2026-07-31T18:48:12Z
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by artist: Lev Oborin
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:30:38Z
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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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Schubert: Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: III. Scherzo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:51:35Z
audio: Schubert: Piano Trio No. 1 in B-Flat Major, Op. 99, D. 898: III. Scherzo
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Schubert: Octet in F Major, Op. 166, D. 803: I. Adagio - Allegro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Schubert: Octet in F Major, Op. 166, D. 803: I. Adagio - Allegro
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-29T11:07:37Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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track: Brahms: Violin Concerto in D Major, Op. 77: III. Allegro giocoso, ma non troppo vivace
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track: Brahms: Double Concerto for Violin and Cello in A Minor, Op. 102: I. Allegro
track: Brahms: Double Concerto for Violin and Cello in A Minor, Op. 102: II. Andante
track: Brahms: Double Concerto for Violin and Cello in A Minor, Op. 102: III. Vivace non troppo
track: Brahms: Violin Sonata No. 3 in D Minor, Op. 108: I. Allegro
track: Brahms: Violin Sonata No. 3 in D Minor, Op. 108: II. Adagio
track: Brahms: Violin Sonata No. 3 in D Minor, Op. 108: III. Un poco presto e con sentimento
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date published: 2026-07-29T22:13:32Z

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  date published: 2026-07-29T21:09:47Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T06:58:00Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T20:09:33Z
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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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by artist: David Oistrakh
by artist: Vladimir Yampolsky
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genre: classical-piano
genre: late-romantic-era
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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: 2026-07-08T03:53:27Z
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date published: 2024-11-25
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    date published: 2024-11-25
  genre: classical
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-06T06:56:49Z
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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: 2026-07-29T19:35:34Z
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track: Mozart: Violin Concerto No. 1 in B-Flat Major, K. 207: III. Presto
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    type: MusicAlbum
    date published: 2024-11-25
  genre: classical
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  subject of: OpenTimestamps Proof of Existence
  audio: Mozart: Violin Concerto No. 1 in B-Flat Major, K. 207: III. Presto
track: Mozart: Violin Concerto No. 3 in G Major, K. 216: I. Allegro
track: Mozart: Violin Concerto No. 3 in G Major, K. 216: II. Adagio
track: Mozart: Violin Concerto No. 3 in G Major, K. 216: III. Rondeau. Allegro
track: Mozart: Violin Concerto No. 5 in A Major, K. 219 "Turkish": I. Allegro aperto (Cadenza by Joachim)
track: Mozart: Violin Concerto No. 5 in A Major, K. 219 "Turkish": II. Adagio (Cadenza by Joachim)
track: Mozart: Violin Concerto No. 5 in A Major, K. 219 "Turkish": III. Rondeau. Tempo di menuetto - Allegro (Cadenza by Joachim)
track: Mozart: Rondo for Violin and Orchestra in C Major, K. 373
track: Mozart: Adagio for Violin and Orchestra in E Major, K. 261
track: Mozart: Rondo for Violin and Orchestra in B-Flat Major, K. 269

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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
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e235ab142c92edf09c443b412b3a07fe927ada1417bf3afab36330797c2438. 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/GBAYC2400168 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Mozart: Violin Concerto No. 1 in B-Flat Major, K. 207: III. Presto
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Mozart: Violin Concerto No. 3 in G Major, K. 216: I. Allegro
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duration: PT9M9S
duration ms: 549480
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Berliner Philharmoniker
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  date published: 2024-11-25
genre: classical
genre: classical-era
genre: classical-piano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T11:07:37Z
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by artist: David Oistrakh
by artist: Berliner Philharmoniker
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genre: classical
genre: classical-era
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genre: opera
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x66c60280cfec561f6d73c1fccf95cc7fc2ca56998c82d9d9c0c4ffa36cfa4df0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960247
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960247
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400176
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T10:42:33Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c60280cfec561f6d73c1fccf95cc7fc2ca56998c82d9d9c0c4ffa36cfa4df0. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400176 — a six-check JSON result.
  date published: 2026-07-30T10:42:33Z
audio: Mozart: Violin Concerto No. 3 in G Major, K. 216: II. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.121
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.163
  additional property: Energy
    type: PropertyValue
    value: 0.118
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.945
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.536
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.157
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.805
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Violin Concerto No. 3 in G Major, K. 216: III. Rondeau. Allegro
type: MusicRecording
duration: PT6M53S
duration ms: 413786
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Berliner Philharmoniker
in album: Mozart: Violin Concertos Nos. 1, 3 & 5 "Turkish" (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-25
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2400177
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T02:12:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd58900631d72d4e98c943e597c351adfaa915417bfcd3c4a50120acb6acd8ead
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960199
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960199
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400177
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T02:30:29Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58900631d72d4e98c943e597c351adfaa915417bfcd3c4a50120acb6acd8ead. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400177 — a six-check JSON result.
  date published: 2026-07-30T02:30:29Z
audio: Mozart: Violin Concerto No. 3 in G Major, K. 216: III. Rondeau. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.304
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.451
  additional property: Energy
    type: PropertyValue
    value: 0.133
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.457
  additional property: Liveness
    type: PropertyValue
    value: 0.234
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.476
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.952
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Violin Concerto No. 5 in A Major, K. 219 "Turkish": I. Allegro aperto (Cadenza by Joachim)
type: MusicRecording
duration: PT9M44S
duration ms: 584040
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Berliner Philharmoniker
in album: Mozart: Violin Concertos Nos. 1, 3 & 5 "Turkish" (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-25
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2400184
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T21:29:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x442ff9715e437f799ad2ddc437d6d08438b97e89b32aa9262dda54a11bb87857
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960150
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/GBAYC2400184
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 0x442ff9715e437f799ad2ddc437d6d08438b97e89b32aa9262dda54a11bb87857. 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/GBAYC2400184 — a six-check JSON result.
  date published: 2026-07-29T21:51:49Z
audio: Mozart: Violin Concerto No. 5 in A Major, K. 219 "Turkish": I. Allegro aperto (Cadenza by Joachim)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.018
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.462
  additional property: Energy
    type: PropertyValue
    value: 0.112
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.324
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.312
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.216
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Violin Concerto No. 5 in A Major, K. 219 "Turkish": II. Adagio (Cadenza by Joachim)
type: MusicRecording
duration: PT11M16S
duration ms: 676026
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Berliner Philharmoniker
in album: Mozart: Violin Concertos Nos. 1, 3 & 5 "Turkish" (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-25
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2400185
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T00:49:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd4bd64aa95b8ccd2e4402f0d72f33314c2871e13d07d7acbb6bfa2085711962
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960183
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960183
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400185
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:10:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xbd4bd64aa95b8ccd2e4402f0d72f33314c2871e13d07d7acbb6bfa2085711962. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400185 — a six-check JSON result.
  date published: 2026-07-30T01:10:20Z
audio: Mozart: Violin Concerto No. 5 in A Major, K. 219 "Turkish": II. Adagio (Cadenza by Joachim)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 165.916
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.176
  additional property: Energy
    type: PropertyValue
    value: 0.071
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.962
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.211
  additional property: Liveness
    type: PropertyValue
    value: 0.158
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.057
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.039
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Violin Concerto No. 5 in A Major, K. 219 "Turkish": III. Rondeau. Tempo di menuetto - Allegro (Cadenza by Joachim)
type: MusicRecording
duration: PT9M46S
duration ms: 586706
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Berliner Philharmoniker
in album: Mozart: Violin Concertos Nos. 1, 3 & 5 "Turkish" (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-25
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2400186
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T00:46:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef7dbf4dc150a9f1adb7a168fb6590c6bb07476ea185956ed3c4e4067b954844
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960183
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960183
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400186
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:10:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xef7dbf4dc150a9f1adb7a168fb6590c6bb07476ea185956ed3c4e4067b954844. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400186 — a six-check JSON result.
  date published: 2026-07-30T01:10:20Z
audio: Mozart: Violin Concerto No. 5 in A Major, K. 219 "Turkish": III. Rondeau. Tempo di menuetto - Allegro (Cadenza by Joachim)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.085
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.378
  additional property: Energy
    type: PropertyValue
    value: 0.095
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.386
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.367
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.105
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Rondo for Violin and Orchestra in C Major, K. 373
type: MusicRecording
duration: PT6M20S
duration ms: 380786
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Berliner Philharmoniker
in album: Mozart: Violin Concertos Nos. 1, 3 & 5 "Turkish" (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-25
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2400189
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T14:41:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x774152da825fbf6ef3081790a5eb5ab6acadac38db28d936ee7a4039c6cfc777
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960268
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960268
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400189
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:53:07Z
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 0x774152da825fbf6ef3081790a5eb5ab6acadac38db28d936ee7a4039c6cfc777. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/GBAYC2400189 — a six-check JSON result.
  date published: 2026-07-30T14:53:07Z
audio: Mozart: Rondo for Violin and Orchestra in C Major, K. 373
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.724
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.391
  additional property: Energy
    type: PropertyValue
    value: 0.121
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.028
  additional property: Liveness
    type: PropertyValue
    value: 0.051
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.504
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.199
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Adagio for Violin and Orchestra in E Major, K. 261
type: MusicRecording
duration: PT8M17S
duration ms: 497560
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Berliner Philharmoniker
in album: Mozart: Violin Concertos Nos. 1, 3 & 5 "Turkish" (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-25
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2400187
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:27:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x999305b42c41ff228336da66d6a6d802b732c691184f2ca4514c307435bbfb67
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400187
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 0x999305b42c41ff228336da66d6a6d802b732c691184f2ca4514c307435bbfb67. 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/GBAYC2400187 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Adagio for Violin and Orchestra in E Major, K. 261
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  additional property: Valence (Positivity)
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type: MusicRecording
duration: PT6M36S
duration ms: 396080
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Berliner Philharmoniker
in album: Mozart: Violin Concertos Nos. 1, 3 & 5 "Turkish" (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-25
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2400188
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
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400188
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 0x36f47fc3ea310a77056dfa87e6a048ff3907f43f47a90a6bea99146da4cd190e. 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/GBAYC2400188 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Rondo for Violin and Orchestra in B-Flat Major, K. 269
  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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Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
type: MusicAlbum
date published: 2024-11-17
track: Tartini: Violin Sonata in G Minor "Devil's Trill": I. Larghetto affetuoso (Arr. Kreisler)
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167293
  explicit: false
  by artist: Giuseppe Tartini
  by artist: David Oistrakh
  by artist: Vladimir Yampolsky
  in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
    type: MusicAlbum
    date published: 2024-11-17
  genre: classical
  genre: baroque
  genre: italian-baroque
  isrc code: GBAYC2400220
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T17:04:39+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/960138
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400220
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T19:35:34Z
  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 0xfaddc3fd0c1b9e1c356a6603c0d998b072c113ec7d1c3962e4ff2a8c64b50b4f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400220 — a six-check JSON result.
    date published: 2026-07-29T19:35:34Z
  audio: Tartini: Violin Sonata in G Minor "Devil's Trill": I. Larghetto affetuoso (Arr. Kreisler)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.926
    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: Tartini: Violin Sonata in G Minor "Devil's Trill": II. Allegro. Tempo giusto della scuole tartinista (Arr. Kreisler)
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170533
  explicit: false
  by artist: Giuseppe Tartini
  by artist: David Oistrakh
  by artist: Vladimir Yampolsky
  in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
    type: MusicAlbum
    date published: 2024-11-17
  genre: classical
  genre: baroque
  genre: italian-baroque
  isrc code: GBAYC2400221
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T08:29:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960231
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960231
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400221
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T08:33:28Z
  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 0x59538c354420bfb8672691f4f6289eac7c38bd69b6d342bcff64bb68287774f5. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/GBAYC2400221 — a six-check JSON result.
    date published: 2026-07-30T08:33:28Z
  audio: Tartini: Violin Sonata in G Minor "Devil's Trill": II. Allegro. Tempo giusto della scuole tartinista (Arr. Kreisler)
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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track: Tartini: Violin Sonata in G Minor "Devil's Trill": III. Andante - Allegro (Arr. Kreisler)
  type: MusicRecording
  duration: PT5M11S
  duration ms: 311426
  explicit: false
  by artist: Giuseppe Tartini
  by artist: David Oistrakh
  by artist: Vladimir Yampolsky
  in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
    type: MusicAlbum
    date published: 2024-11-17
  genre: classical
  genre: baroque
  genre: italian-baroque
  isrc code: GBAYC2400222
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Tartini: Violin Sonata in G Minor "Devil's Trill": III. Andante - Allegro (Arr. Kreisler)
track: Tartini: Violin Sonata in G Minor "Devil's Trill": IV. Cadenza. Adagio (Arr. Kreisler)
track: Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: I. Largo - Allegro
track: Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: II. Andante
track: Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: III. Allegretto
track: Franck: Violin Sonata in A Major, FWV 8: I. Allegretto ben moderato
track: Franck: Violin Sonata in A Major, FWV 8: II. Allegro
track: Franck: Violin Sonata in A Major, FWV 8: III. Recitativo-Fantasia. Ben moderato
track: Franck: Violin Sonata in A Major, FWV 8: IV. Allegretto poco mosso
track: Beethoven: Violin Sonata No. 3 in E-Flat Major, Op. 12 No. 3: III. Rondo. Allegro molto

CopyrightRegisteredAt
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value: 2026-07-31T10:15:03+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xdc7a916134e312e16308f55b309b78e7bbaf6f5f3746276e797150b9a43bf4ec

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 960389

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960389

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400222

OTSTimestamp
type: PropertyValue
value: 2026-07-31T10:20:10Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7a916134e312e16308f55b309b78e7bbaf6f5f3746276e797150b9a43bf4ec. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GBAYC2400222 — a six-check JSON result.
date published: 2026-07-31T10:20:10Z

Tartini: Violin Sonata in G Minor "Devil's Trill": III. Andante - Allegro (Arr. Kreisler)
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Tartini: Violin Sonata in G Minor "Devil's Trill": IV. Cadenza. Adagio (Arr. Kreisler)
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duration: PT3M3S
duration ms: 183293
explicit: false
by artist: Giuseppe Tartini
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-17
genre: classical
genre: baroque
genre: italian-baroque
isrc code: GBAYC2400223
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/GBAYC2400223
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 0x58154adade3dbb295bf2c01408b9c3e7bea250804d2e983d1a6ad483159de360. 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/GBAYC2400223 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Tartini: Violin Sonata in G Minor "Devil's Trill": IV. Cadenza. Adagio (Arr. Kreisler)
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  additional property: Valence (Positivity)
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Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: I. Largo - Allegro
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duration: PT5M38S
duration ms: 338106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-17
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2400224
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
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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 0x6e281f5441fab0b054eead4739df1ced2eedc3dfff28e6959019e40fd95eddd6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBAYC2400224 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: I. Largo - Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.569
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.437
  additional property: Energy
    type: PropertyValue
    value: 0.08
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.117
  additional property: Liveness
    type: PropertyValue
    value: 0.226
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.34
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.489
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: II. Andante
type: MusicRecording
duration: PT7M52S
duration ms: 472600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-17
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2400225
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T00:15:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fc73764e5410edda0e639f5eccae252f305ba82dd785126154c34f9625bfd50
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400225
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc73764e5410edda0e639f5eccae252f305ba82dd785126154c34f9625bfd50. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400225 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.407
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.253
  additional property: Energy
    type: PropertyValue
    value: 0.051
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.4
  additional property: Liveness
    type: PropertyValue
    value: 0.056
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.173
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.526
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: III. Allegretto
type: MusicRecording
duration: PT6M48S
duration ms: 408680
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-17
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC2400226
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:03:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd94f2e60a863d45e1770e90d9630d2d7d78a1087316bc837ed5eac78c55e3804
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400226
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 0xd94f2e60a863d45e1770e90d9630d2d7d78a1087316bc837ed5eac78c55e3804. 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/GBAYC2400226 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Violin Sonata No. 32 in B-Flat Major, K. 454: III. Allegretto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.968
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.525
  additional property: Energy
    type: PropertyValue
    value: 0.078
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.226
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.552
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.691
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Franck: Violin Sonata in A Major, FWV 8: I. Allegretto ben moderato
type: MusicRecording
duration: PT6M18S
duration ms: 378240
explicit: false
by artist: César Franck
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-17
genre: chamber-music
isrc code: GBAYC2400063
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:11:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x737baa54523fdfdc9cbacd6de9b4f8de859ca8e7f65027b188b5e16db5fe3dab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960379
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960379
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400063
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:25:34Z
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 0x737baa54523fdfdc9cbacd6de9b4f8de859ca8e7f65027b188b5e16db5fe3dab. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBAYC2400063 — a six-check JSON result.
  date published: 2026-07-31T09:25:34Z
audio: Franck: Violin Sonata in A Major, FWV 8: I. Allegretto ben moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.834
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.238
  additional property: Energy
    type: PropertyValue
    value: 0.188
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.058
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.187
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Franck: Violin Sonata in A Major, FWV 8: II. Allegro
type: MusicRecording
duration: PT8M47S
duration ms: 527386
explicit: false
by artist: César Franck
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-17
genre: chamber-music
isrc code: GBAYC2400064
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:21:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc45961ece9deb1196a0431d17d0b09ce9ffeef4c99299c9ec2a9c6323f1e0f24
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960422
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960422
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400064
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:27:29Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45961ece9deb1196a0431d17d0b09ce9ffeef4c99299c9ec2a9c6323f1e0f24. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400064 — a six-check JSON result.
  date published: 2026-07-31T15:27:29Z
audio: Franck: Violin Sonata in A Major, FWV 8: II. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.593
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.212
  additional property: Energy
    type: PropertyValue
    value: 0.277
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.076
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.156
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Franck: Violin Sonata in A Major, FWV 8: III. Recitativo-Fantasia. Ben moderato
type: MusicRecording
duration: PT7M13S
duration ms: 433200
explicit: false
by artist: César Franck
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-17
genre: chamber-music
isrc code: GBAYC2400065
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:16:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37b9551eface737d200dd684c699dfadc9df2cd8ac918d10e0d0d4f74eff8fa1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400065
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x37b9551eface737d200dd684c699dfadc9df2cd8ac918d10e0d0d4f74eff8fa1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAYC2400065 — a six-check JSON result.
  date published: 2026-07-08T03:53:27Z
audio: Franck: Violin Sonata in A Major, FWV 8: III. Recitativo-Fantasia. Ben moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.043
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.185
  additional property: Energy
    type: PropertyValue
    value: 0.146
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.016
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.61
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Franck: Violin Sonata in A Major, FWV 8: IV. Allegretto poco mosso
type: MusicRecording
duration: PT6M33S
duration ms: 393333
explicit: false
by artist: César Franck
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Tartini, Mozart, Franck & Beethoven: Sonatas for Violin and Piano (Remastered 2024)
  type: MusicAlbum
  date published: 2024-11-17
genre: chamber-music
isrc code: GBAYC2400066
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:31:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3280108011dbcb9660a0b61b106cd8a395aa318aae6967b92e08cab5c9b8e743
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2400066
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 0x3280108011dbcb9660a0b61b106cd8a395aa318aae6967b92e08cab5c9b8e743. 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/GBAYC2400066 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Franck: Violin Sonata in A Major, FWV 8: IV. Allegretto poco mosso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.707
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.217
  additional property: Energy
    type: PropertyValue
    value: 0.361
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
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track: Beethoven: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer": II. (a) Andante con variazioni. Theme - Andante
track: Beethoven: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer": II. (b) Andante con variazioni. Variation I
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track: Debussy: Suite bergamasque, CD 82, L. 75: III. Clair de lune (Arr. Roelens for Violin and Piano)
track: Falla: 7 Canciones populares españolas: No. 4, Jota (Arr. Kochanski for Violin and Piano)
track: Tchaikovsky: Valse-scherzo, Op. 34 (Arr. Bezekirsky for Violin and Piano)
track: Ysaÿe: Extase, Op. 21 "Poem No. 4" (Version for Violin and Piano)
track: Wieniawski: Légende, Op. 17 (Version for Violin and Piano)

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Beethoven: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer": II. (b) Andante con variazioni. Variation I
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  date published: 2026-07-31T12:24:41Z
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Beethoven: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer": II. (c) Andante con variazioni. Variation II
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subject of: OpenTimestamps Proof of Existence
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Beethoven: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer": II. (d) Andante con variazioni. Variation III
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subject of: OpenTimestamps Proof of Existence
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Beethoven: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer": II. (e) Andante con variazioni. Variation IV
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T05:48:18Z
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Beethoven: Violin Sonata No. 9 in A Major, Op. 47 "Kreutzer": III. Finale. Presto
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subject of: OpenTimestamps Proof of Existence
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Debussy: Suite bergamasque, CD 82, L. 75: III. Clair de lune (Arr. Roelens for Violin and Piano)
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subject of: OpenTimestamps Proof of Existence
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Falla: 7 Canciones populares españolas: No. 4, Jota (Arr. Kochanski for Violin and Piano)
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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: 2026-07-08T03:20:19Z
audio: Falla: 7 Canciones populares españolas: No. 4, Jota (Arr. Kochanski for Violin and Piano)
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Tchaikovsky: Valse-scherzo, Op. 34 (Arr. Bezekirsky for Violin and Piano)
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duration: PT5M29S
duration ms: 329720
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Beethoven: Violin Concerto, Op. 61 & Kreutzer Sonata, Op. 47 - Encores
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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: 2026-07-30T17:23:26Z
audio: Tchaikovsky: Valse-scherzo, Op. 34 (Arr. Bezekirsky for Violin and Piano)
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Ysaÿe: Extase, Op. 21 "Poem No. 4" (Version for Violin and Piano)
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duration: PT9M47S
duration ms: 587906
explicit: false
by artist: Eugène Ysaÿe
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Beethoven: Violin Concerto, Op. 61 & Kreutzer Sonata, Op. 47 - Encores
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genre: late-romantic-era
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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: 2026-07-31T20:22:46Z
audio: Ysaÿe: Extase, Op. 21 "Poem No. 4" (Version for Violin and Piano)
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Wieniawski: Légende, Op. 17 (Version for Violin and Piano)
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by artist: Henryk Wieniawski
by artist: David Oistrakh
by artist: Vladimir Yampolsky
in album: Beethoven: Violin Concerto, Op. 61 & Kreutzer Sonata, Op. 47 - Encores
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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: 2026-07-31T08:38:45Z
audio: Wieniawski: Légende, Op. 17 (Version for Violin and Piano)
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Mozart: Violin Concertos Nos. 4 & 5, Violin Sonata No. 32, K. 454
type: MusicAlbum
date published: 2023-04-21

Beethoven & Brahms: Two Concertos
type: MusicAlbum
date published: 2023-01-27

David Oistrakh Plays Beethoven
type: MusicAlbum
date published: 2022-07-08
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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
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-31T17:29:52Z
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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
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  subject of: OpenTimestamps Proof of Existence
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track: Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler)

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63249ca9d9f345e05dce728202418960e16f5dfa1733c729b6ce66bd5a084c61. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9601356 — a six-check JSON result.
date published: 2026-07-31T15:27:29Z

Beethoven: Piano Trio No. 7 in B-Flat Major, Op. 97 "Archduke": III. Andante cantabile
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
  type: PropertyValue
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additional property: Loudness (dB)
  type: PropertyValue
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additional property: Key Name
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additional property: Mode Name
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Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler)
type: MusicRecording
duration: PT25M28S
duration ms: 1528506
explicit: false
by artist: Ludwig van Beethoven
by artist: David Oistrakh
by artist: André Cluytens
by artist: Orchestre National Radiodiffusion Française
in album: David Oistrakh Plays Beethoven
  type: MusicAlbum
  date published: 2022-07-08
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: FRZ118904012
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
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960473
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118904012
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44Z
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 0x630f49f0c98ccd04a86cc7e8c0322fa37eb3160b3c9e15f479749339f7ee04c4. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRZ118904012 — a six-check JSON result.
  date published: 2026-07-31T22:27:44Z
audio: Beethoven: Violin Concerto in D Major, Op. 61: I. Allegro ma non troppo (Cadenza by Kreisler)
  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: Energy
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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Bach: Violin Sonatas Nos. 1-6, BWVV 1014-1019
type: MusicAlbum
date published: 2022-06-03

Beethoven: Violin Sonatas Nos. 5 & 9
type: MusicAlbum
date published: 2021-12-10
track: Orfeo ed Euridice, Wq. 30: Dance of the Blessed Spirits (Arr. for Violin & Piano)
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228730
  explicit: false
  by artist: Christoph Willibald Gluck
  by artist: David Oistrakh
  by artist: Vladimir Yampolsky
  in album: Beethoven: Violin Sonatas Nos. 5 & 9
    type: MusicAlbum
    date published: 2021-12-10
  genre: classical
  genre: opera
  isrc code: USB8U2012037
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xccc6fde4d8b3a645f2f0f842a011bf50f04d029b0977f7e2e56d498cf53f3b12
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960334
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960334
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U2012037
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T02:19:15Z
  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 0xccc6fde4d8b3a645f2f0f842a011bf50f04d029b0977f7e2e56d498cf53f3b12. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U2012037 — a six-check JSON result.
    date published: 2026-07-31T02:19:15Z
  audio: Orfeo ed Euridice, Wq. 30: Dance of the Blessed Spirits (Arr. for Violin & Piano)
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 113.449
    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
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.148
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.812
    additional property: Key Name
      type: PropertyValue
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    additional property: Mode Name
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Tchaikovsky: Piano Concerto No. 1 in B-Flat Minor, Op. 23, TH 55 & Violin Concerto in D Major, Op. 35, TH 59 (Live)
type: MusicAlbum
date published: 2021-10-15
track: Piano Concerto No. 1 in B-Flat Minor, Op. 23, TH 55: I. Allegro non troppo e molto maestoso (Live)
  type: MusicRecording
  duration: PT20M43S
  duration ms: 1243613
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Kirill Kondrashin
  by artist: Moscow Philharmonic Orchestra
  by artist: Sviatoslav Richter
  in album: Tchaikovsky: Piano Concerto No. 1 in B-Flat Minor, Op. 23, TH 55 & Violin Concerto in D Major, Op. 35, TH 59 (Live)
    type: MusicAlbum
    date published: 2021-10-15
  isrc code: ITCC56000765
  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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    value: https://explorer.copyrightchains.com/tx/0xf728c300650c11b4da074580230d86ce70c4a560df633064510c867179552056
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960397
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960397
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC56000765
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T12:24:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xf728c300650c11b4da074580230d86ce70c4a560df633064510c867179552056. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC56000765 — a six-check JSON result.
    date published: 2026-07-31T12:24:41Z
  audio: Piano Concerto No. 1 in B-Flat Minor, Op. 23, TH 55: I. Allegro non troppo e molto maestoso (Live)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.025
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Valence (Positivity)
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Rachmaninoff: Trio élégiaque No. 2 in D Minor, Op. 9 - Tchaikovsky: Violin Concerto in D Major, Op. 35, TH 59 (Live)
type: MusicAlbum
date published: 2021-09-03
track: Trio élégiaque No. 2 in D Minor, Op. 9: I. Moderato - Allegro moderato
  type: MusicRecording
  duration: PT18M40S
  duration ms: 1120773
  explicit: false
  by artist: Sergei Rachmaninoff
  by artist: David Oistrakh
  by artist: Sviatoslav Knushevitsky
  by artist: Lev Oborin
  in album: Rachmaninoff: Trio élégiaque No. 2 in D Minor, Op. 9 - Tchaikovsky: Violin Concerto in D Major, Op. 35, TH 59 (Live)
    type: MusicAlbum
    date published: 2021-09-03
  genre: classical
  genre: classical-piano
  genre: concerto
  isrc code: CZH401107683
  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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    value: https://explorer.copyrightchains.com/tx/0xf1841c1f39e64d19eda2a878a70dce4ffc3091354f3c163d8bd700d199dcf1b6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960397
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960397
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH401107683
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T12:24:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xf1841c1f39e64d19eda2a878a70dce4ffc3091354f3c163d8bd700d199dcf1b6. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH401107683 — a six-check JSON result.
    date published: 2026-07-31T12:24:41Z
  audio: Trio élégiaque No. 2 in D Minor, Op. 9: I. Moderato - Allegro moderato
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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Prokofiev, Scriabin & Others: Works for Violin & Piano (Live)
type: MusicAlbum
date published: 2021-09-03

Mozart: Works for Violin & Orchestra (Live)
type: MusicAlbum
date published: 2021-09-03

Mozart: Violin Sonatas Nos. 27 and 32 & Violin Concerto No. 1 (Live)
type: MusicAlbum
date published: 2021-09-03

Mozart: Violin Concertos Nos. 3 and 4 & Violin Sonata No. 23
type: MusicAlbum
date published: 2021-09-03
track: Violin Sonata No. 23 in D Major, K. 306: I. Allegro con spirito (Live)
  type: MusicRecording
  duration: PT7M19S
  duration ms: 439093
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: David Oistrakh
  by artist: Paul Badura-Skoda
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    date published: 2021-09-03
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: CZH401107711
  additional property: CopyrightID
  additional property: CopyrightStatus
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    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xc4bea902f79b6fb81a02caf4b9b4b7dc79957a6488fe2fe96eb7b17f799e8107
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960314
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH401107711
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T21:00:46Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bea902f79b6fb81a02caf4b9b4b7dc79957a6488fe2fe96eb7b17f799e8107. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH401107711 — a six-check JSON result.
    date published: 2026-07-30T21:00:46Z
  audio: Violin Sonata No. 23 in D Major, K. 306: I. Allegro con spirito (Live)
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Smetana: Piano Trio, Op. 15 - Dvořák: Symphony No. 9, Op. 95 "From the New World"
type: MusicAlbum
date published: 2021-08-27

Shostakovich: Piano Trio No. 2, Op. 67 & Violin Concerto No. 1, Op. 77 (Live)
type: MusicAlbum
date published: 2021-08-27
track: Piano Trio No. 2 in E Minor, Op. 67: IV. Allegretto (Live)
  type: MusicRecording
  duration: PT9M57S
  duration ms: 597426
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  by artist: Dmitri Shostakovich
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  by artist: Sviatoslav Knushevitsky
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    date published: 2021-08-27
  isrc code: CZH401107688
  additional property: CopyrightID
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  additional property: CopyrightRegisteredAt
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    value: 2026-07-31T13:22:24+00:00
  additional property: CopyrightChainExplorerURL
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  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/CZH401107688
  additional property: OTSTimestamp
    type: PropertyValue
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Schubert, Falla & Debussy: Violin Works
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Ravel, Beethoven & Godard: Violin Works
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Locatelli, Vieuxtemps & Others: Works (Live)
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Chopin & Beethoven: Piano Trio, Violin Sonata & Other Works
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Chausson, Daquin & Others: Violin Works (Live)
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date published: 2021-08-20

Violin Concertos: Joseph Haydn, Michael Haydn, Wolfgang Amadeus Mozart, Pjotr Ilyich Tchaikovsky (Classical Masterpieces)
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date published: 2008

Corelli: Concerto Grossi No. 1 - 4
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date published: 2009-01-01

Concerto for Violin, Strings & Continuo No. 2 in E Major, BWV1042
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Beethoven: Violin Concerto in D Major, Op. 61: II. Larghetto
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Concerto for Violin and Orchestra in D Major, Op. 61: II. Larghetto
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Double Concerto for 2 Violins, Strings, and Continuo in D Minor, BWV 1043: II. Largo ma non tanto
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Double Concerto for 2 Violins, Strings, and Continuo in D Minor, BWV 1043: II. Largo ma non tanto
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Violin Concerto No. 2 in E Major, BWV 1042: II. Adagio
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by artist: Johann Sebastian Bach
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