Alexander Borodin
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genre: classical
description: thumb|upright|Alexander Borodin Alexander Porfiryevich Borodin (12 November 183327 February 1887) was a Russian Romantic composer and chemist of Georgian–Russian parentage. He was one of the prominen
popularity: 48
followers: 55447
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subject of: OpenTimestamps Proof of Existence
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album: Souvenirs. Piano Music from the Golden Age
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  date published: 2023-12-29
album: Overture!
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-30T06:39:12Z
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  track: Cuban Overture (Arr. Lawrence for Brass Ensemble)
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    subject of: OpenTimestamps Proof of Existence
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  track: La forza del destino Overture (Arr. Höfs for Brass Ensemble)
  track: Egmont Overture, Op. 34 (Arr. Höfs for Brass Ensemble)
  track: Prince Igor Overture (Arr. Lawrence for Brass Ensemble)
  track: Carnival Overture, Op. 92 (Arr. Lawrence for Brass Ensemble)
album: Klassische Musik für den Sommer - Über das Meer
album: Music by the Sea
album: Borodin: String Quartet No. 1 in A Major
album: Borodin String Quartets Nos. 1 & 2
album: ARSM I, Vol. 5. Borodin
album: Borodin: String Quartet No. 2 & Piano Quintet – Goldstein: Cello Sonata
album: ARSM I, Vol. 6. Borodin
album: Borodin: Symphonies Nos. 1 & 2
album: Borodin: Symphony No. 2; Polovtsian Dances; In the Steppes of Central Asia
album: Borodin: Prince Igor (Live)
album: Borodin: Symphonic Works
album: Borodin: Prince Igor
album: Borodin: Symphonies Nos. 1-3
album: Borodin: Chamber Music
album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
album: Borodin: Prince Igor (Highlights)
album: Borodin: Prince Igor (Ivanov, Smolenskaya, Melik-Pashayev) (1951)
album: ボロディン：弦楽四重奏曲集 (アルバム)
album: Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
album: Borodin: String Quartets; String Sextet
album: Rimsky-Korsakov: Scheherazade
album: Borodin, A.P.: String Quartets Nos. 1 and 2
album: Borodin: Symphonies Nos. 1 and 3 / Overture To Prince Igor
album: Borodin: Requiem, Polovtsian Dances, In the Steppes of Central Asia, Nocturne, Petite Suite

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La forza del destino Overture (Arr. Höfs for Brass Ensemble)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: La forza del destino Overture (Arr. Höfs for Brass Ensemble)
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Egmont Overture, Op. 34 (Arr. Höfs for Brass Ensemble)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:36:16Z
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Prince Igor Overture (Arr. Lawrence for Brass Ensemble)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T09:50:11Z
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Carnival Overture, Op. 92 (Arr. Lawrence for Brass Ensemble)
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subject of: OpenTimestamps Proof of Existence
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audio: Carnival Overture, Op. 92 (Arr. Lawrence for Brass Ensemble)
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Klassische Musik für den Sommer - Über das Meer
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date published: 2023-09-11
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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: Satie: Sports et divertissements: No. 9, Le bain de mer
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
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track: Britten: Four Sea Interludes from Peter Grimes, Op. 33a: No. 3, Moonlight
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  subject of: OpenTimestamps Proof of Existence
  audio: Britten: Four Sea Interludes from Peter Grimes, Op. 33a: No. 3, Moonlight
track: Grieg: Peer Gynt, Op. 23, Act 5: No. 21, Prelude. Peer Gynt's Homecoming
track: Chopin: 12 Études, Op. 25: No. 12 in C Minor
track: Vivaldi: Flute Concerto in F Major, Op. 10 No. 1, RV 433 "La tempesta di mare": I. Allegro
track: Debussy: La Mer, CD 111, L. 109: II. Jeux de vagues
track: Bridge: The Sea: I. Seascape. Allegro ben moderato
track: Elgar: Sea Pictures, Op. 37: No. 4, Where Corals Lie

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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Britten: Four Sea Interludes from Peter Grimes, Op. 33a: No. 3, Moonlight
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Grieg: Peer Gynt, Op. 23, Act 5: No. 21, Prelude. Peer Gynt's Homecoming
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popularity: 17
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Grieg: Peer Gynt, Op. 23, Act 5: No. 21, Prelude. Peer Gynt's Homecoming
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Chopin: 12 Études, Op. 25: No. 12 in C Minor
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popularity: 17
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Chopin: 12 Études, Op. 25: No. 12 in C Minor
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Vivaldi: Flute Concerto in F Major, Op. 10 No. 1, RV 433 "La tempesta di mare": I. Allegro
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subject of: OpenTimestamps Proof of Existence
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Debussy: La Mer, CD 111, L. 109: II. Jeux de vagues
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track: Grieg: Peer Gynt, Op. 23, Act 5: No. 21, Prelude. Peer Gynt's Homecoming
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Grieg: Peer Gynt, Op. 23, Act 5: No. 21, Prelude. Peer Gynt's Homecoming
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  date published: 2026-07-31T00:26:26Z
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Chopin: 12 Études, Op. 25: No. 12 in C Minor
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subject of: OpenTimestamps Proof of Existence
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Vivaldi: Flute Concerto in F Major, Op. 10 No. 1, RV 433 "La tempesta di mare": I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Debussy: La Mer, CD 111, L. 109: II. Jeux de vagues
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Debussy: La Mer, CD 111, L. 109: II. Jeux de vagues
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Bridge: The Sea: I. Seascape. Allegro ben moderato
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Bridge: The Sea: I. Seascape. Allegro ben moderato
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Ives: Set No. 3 for Chamber Orchestra: I. At Sea. Adagio sostenuto
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subject of: OpenTimestamps Proof of Existence
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Purcell: Dido and Aeneas, Z. 626, Act 3: Song and Chorus. "Come Away" - The Sailors' Dance (Sailor, Chorus)
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Sibelius: Pelléas et Mélisande, Op. 46: III. At the Seashore
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Rimsky-Korsakov: Scheherazade, Op. 35: I. The Sea and Sinbad's Ship
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Marais: Alcyone, Acte 4: Tempête. "Ciel, ô ciel, quel affreux orage" (Chœur, Morphée)
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subject of: OpenTimestamps Proof of Existence
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Mendelssohn: The Hebrides, Op. 26, MWV P7 "Fingal's Cave"
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Coates: By the Sleepy Lagoon (Instrumental Version)
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Ravel: Miroirs, M. 43: III. Une barque sur l'océan
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Borodin: String Quartet No. 1 in A Major
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Borodin String Quartets Nos. 1 & 2
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  genre: russian-romanticism
  isrc code: USX761929801
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T08:05:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1b5f48c5cb8e20bbc64550841c8b63b6af3c5fe5dc8ab8481e49f28d0c1f0181
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929801
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0x1b5f48c5cb8e20bbc64550841c8b63b6af3c5fe5dc8ab8481e49f28d0c1f0181. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929801.
    date published: 2026-07-02T03:30:09Z
  audio: String Quartet No.1 in A Major
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.247
    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: 0.175
    additional property: Energy
      type: PropertyValue
      value: 0.069
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.973
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.346
    additional property: Liveness
      type: PropertyValue
      value: 0.181
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.078
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.43
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: String Quartet No.1 in A Major
  type: MusicRecording
  duration: PT8M20S
  duration ms: 500200
  explicit: false
  by artist: Alexander Borodin
  by artist: Borodin Quartet
  in album: Borodin String Quartets Nos. 1 & 2
    type: MusicAlbum
    date published: 2019-02-22
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: USX761929802
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T15:53:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x96849baa8fbe4a181c95ad2b0f5abf5d4f3a31f46cd50cc2ef390530e0873393
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929802
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x96849baa8fbe4a181c95ad2b0f5abf5d4f3a31f46cd50cc2ef390530e0873393. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929802.
    date published: 2026-07-02T03:55:08Z
  audio: String Quartet No.1 in A Major
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.995
    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: 0.16
    additional property: Energy
      type: PropertyValue
      value: 0.053
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.971
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.811
    additional property: Liveness
      type: PropertyValue
      value: 0.079
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.038
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.249
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: String Quartet No.1 in A Major
  type: MusicRecording
  duration: PT5M25S
  duration ms: 325200
  explicit: false
  by artist: Alexander Borodin
  by artist: Borodin Quartet
  in album: Borodin String Quartets Nos. 1 & 2
    type: MusicAlbum
    date published: 2019-02-22
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: USX761929803
  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: String Quartet No.1 in A Major
track: String Quartet No.2 in D Major

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-24T15:54:54+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xb6605598e59d444191275b62a9b9a84312acb56efc6f486c5ffcab3de8aea0c0

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929803

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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 0xb6605598e59d444191275b62a9b9a84312acb56efc6f486c5ffcab3de8aea0c0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929803.
date published: 2026-07-02T03:55:08Z

String Quartet No.1 in A Major
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 165.771
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.382
additional property: Energy
  type: PropertyValue
  value: 0.173
additional property: Speechiness
  type: PropertyValue
  value: 0.05
additional property: Acousticness
  type: PropertyValue
  value: 0.963
additional property: Instrumentalness
  type: PropertyValue
  value: 0.206
additional property: Liveness
  type: PropertyValue
  value: 0.136
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.208
additional property: Loudness (dB)
  type: PropertyValue
  value: -24.416
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Minor

String Quartet No.1 in A Major
type: MusicRecording
duration: PT10M42S
duration ms: 642200
explicit: false
by artist: Alexander Borodin
by artist: Borodin Quartet
in album: Borodin String Quartets Nos. 1 & 2
  type: MusicAlbum
  date published: 2019-02-22
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USX761929804
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T17:22:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfcc5b4d9cd89d7cc5dff5a4f01fa200b6e5abd41fbb9160e8928bdb598564a05
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929804
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0xfcc5b4d9cd89d7cc5dff5a4f01fa200b6e5abd41fbb9160e8928bdb598564a05. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929804.
  date published: 2026-07-02T03:55:08Z
audio: String Quartet No.1 in A Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.512
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.463
  additional property: Energy
    type: PropertyValue
    value: 0.101
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.501
  additional property: Liveness
    type: PropertyValue
    value: 0.083
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.228
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.72
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

String Quartet No.2 in D Major
type: MusicRecording
duration: PT7M53S
duration ms: 473200
explicit: false
by artist: Alexander Borodin
by artist: Borodin Quartet
in album: Borodin String Quartets Nos. 1 & 2
  type: MusicAlbum
  date published: 2019-02-22
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USX761929805
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T04:54:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a82654df7277b0e457b3d73b49fd5783a0c75de6868bf8f145d4a9db2a6d27a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929805
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x6a82654df7277b0e457b3d73b49fd5783a0c75de6868bf8f145d4a9db2a6d27a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929805.
  date published: 2026-06-13T13:32:09Z
audio: String Quartet No.2 in D Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 168.316
  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: 0.17
  additional property: Energy
    type: PropertyValue
    value: 0.12
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.933
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.485
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.192
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.266
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

String Quartet No.2 in D Major
type: MusicRecording
duration: PT4M47S
duration ms: 287200
explicit: false
by artist: Alexander Borodin
by artist: Borodin Quartet
in album: Borodin String Quartets Nos. 1 & 2
  type: MusicAlbum
  date published: 2019-02-22
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USX761929806
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T17:45:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57c8a6a0114b19207ef5390a26c67c93f16febe6d2d51b077d0e48f4f0ade881
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929806
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x57c8a6a0114b19207ef5390a26c67c93f16febe6d2d51b077d0e48f4f0ade881. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929806.
  date published: 2026-07-02T03:30:09Z
audio: String Quartet No.2 in D Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.295
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.34
  additional property: Energy
    type: PropertyValue
    value: 0.188
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.938
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.646
  additional property: Liveness
    type: PropertyValue
    value: 0.212
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.372
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.36
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

String Quartet No.2 in D Major
type: MusicRecording
duration: PT8M12S
duration ms: 492200
explicit: false
by artist: Alexander Borodin
by artist: Borodin Quartet
in album: Borodin String Quartets Nos. 1 & 2
  type: MusicAlbum
  date published: 2019-02-22
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USX761929807
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T18:15:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa792cdae2b55b4bfda687bfda0caa60e84595e6a7cf23788b95c7590bdcf74b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929807
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0xa792cdae2b55b4bfda687bfda0caa60e84595e6a7cf23788b95c7590bdcf74b0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761929807.
  date published: 2026-06-13T13:32:09Z
audio: String Quartet No.2 in D Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.214
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String Quartet No.2 in D Major
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by artist: Borodin Quartet
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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ARSM I, Vol. 5. Borodin
type: MusicAlbum
date published: 2017-07-24

Borodin: String Quartet No. 2 & Piano Quintet – Goldstein: Cello Sonata
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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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track: String Quartet No. 2 in D Major: III. Notturno. 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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ARSM I, Vol. 6. Borodin
type: MusicAlbum
date published: 2017-01-01
track: Prince Igor: Overture
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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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track: Prince Igor: Polovtsian Dances with Chorus "Uletay na krylyakh vetra"
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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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Borodin: Symphonies Nos. 1 & 2
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T14:36:16Z
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  genre: russian-romanticism
  isrc code: USB8U1521471
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T12:06:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6f8e51bc180bc7168eba3fc348190db5d722d4360eaf9dcb8b745d590e46787d
  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/USB8U1521471
  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 0x6f8e51bc180bc7168eba3fc348190db5d722d4360eaf9dcb8b745d590e46787d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1521471.
    date published: 2026-07-31T12:24:41Z
  audio: Symphony No. 1 in E-Flat Major: II. Scherzo: Prestissimo - Trio: Allegro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 125.165
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.388
    additional property: Energy
      type: PropertyValue
      value: 0.306
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.952
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.897
    additional property: Liveness
      type: PropertyValue
      value: 0.173
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.34
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.288
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Symphony No. 1 in E-Flat Major: III. Andante
  type: MusicRecording
  duration: PT8M19S
  duration ms: 499997
  explicit: false
  by artist: Alexander Borodin
  by artist: USSR State Symphony Orchestra
  by artist: Yevgeny Svetlanov
  in album: Borodin: Symphonies Nos. 1 & 2
    type: MusicAlbum
    date published: 2015-11-01
  popularity: 3
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: USB8U1521472
  additional property: CopyrightID
  additional property: CopyrightStatus
  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: Symphony No. 1 in E-Flat Major: III. Andante
track: Symphony No. 1 in E-Flat Major: IV. Allegro molto vivo
track: Symphony No. 2 in B Minor: I. Allegro
track: Symphony No. 2 in B Minor: II. Scherzo: Prestissimo. Trio: Allegretto
track: Symphony No. 2 in B Minor: III. Andante - IV. Finale: Allegro

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-30T22:21:51+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xf43fdfd6a488bd8e13d222943f5dfd83a864d1cd812077b8714568afc7cd9a4c

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960327

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960327

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1521472

OTSTimestamp
type: PropertyValue
value: 2026-07-31T00:26:26Z

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 0xf43fdfd6a488bd8e13d222943f5dfd83a864d1cd812077b8714568afc7cd9a4c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1521472.
date published: 2026-07-31T00:26:26Z

Symphony No. 1 in E-Flat Major: III. Andante
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 143.549
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: 0.151
additional property: Energy
  type: PropertyValue
  value: 0.067
additional property: Speechiness
  type: PropertyValue
  value: 0.043
additional property: Acousticness
  type: PropertyValue
  value: 0.965
additional property: Instrumentalness
  type: PropertyValue
  value: 0.872
additional property: Liveness
  type: PropertyValue
  value: 0.223
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.051
additional property: Loudness (dB)
  type: PropertyValue
  value: -24.208
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Symphony No. 1 in E-Flat Major: IV. Allegro molto vivo
type: MusicRecording
duration: PT6M42S
duration ms: 402796
explicit: false
by artist: Alexander Borodin
by artist: USSR State Symphony Orchestra
by artist: Yevgeny Svetlanov
in album: Borodin: Symphonies Nos. 1 & 2
  type: MusicAlbum
  date published: 2015-11-01
popularity: 3
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USB8U1521473
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T06:34:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfddb8b91cf8018c6fbe308c697e7bb21104ddf1b3df6b168a30adc2017de3e24
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960360
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960360
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1521473
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:42:11Z
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 0xfddb8b91cf8018c6fbe308c697e7bb21104ddf1b3df6b168a30adc2017de3e24. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1521473.
  date published: 2026-07-31T06:42:11Z
audio: Symphony No. 1 in E-Flat Major: IV. Allegro molto vivo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.261
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.469
  additional property: Energy
    type: PropertyValue
    value: 0.197
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.902
  additional property: Liveness
    type: PropertyValue
    value: 0.136
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.301
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.582
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor: I. Allegro
type: MusicRecording
duration: PT9M9S
duration ms: 549787
explicit: false
by artist: Alexander Borodin
by artist: USSR State Symphony Orchestra
by artist: Yevgeny Svetlanov
in album: Borodin: Symphonies Nos. 1 & 2
  type: MusicAlbum
  date published: 2015-11-01
popularity: 4
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USB8U1521474
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:02:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ab3f9fab620c464ee4bfeddd30f0308d6fb2e499feb6cb6fc458497cf3cdfef
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/USB8U1521474
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 0x0ab3f9fab620c464ee4bfeddd30f0308d6fb2e499feb6cb6fc458497cf3cdfef. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1521474.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B Minor: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.647
  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: 0.297
  additional property: Energy
    type: PropertyValue
    value: 0.128
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.908
  additional property: Liveness
    type: PropertyValue
    value: 0.136
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.113
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.622
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor: II. Scherzo: Prestissimo. Trio: Allegretto
type: MusicRecording
duration: PT4M38S
duration ms: 278165
explicit: false
by artist: Alexander Borodin
by artist: USSR State Symphony Orchestra
by artist: Yevgeny Svetlanov
in album: Borodin: Symphonies Nos. 1 & 2
  type: MusicAlbum
  date published: 2015-11-01
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USB8U1521475
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:42:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x50dd6e75cf72e2863ec131bfcbd1dd940c3ff8eebb3ef23fd01aa854543fc58b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1521475
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 0x50dd6e75cf72e2863ec131bfcbd1dd940c3ff8eebb3ef23fd01aa854543fc58b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1521475.
  date published: 2026-07-08T03:39:04Z
audio: Symphony No. 2 in B Minor: II. Scherzo: Prestissimo. Trio: Allegretto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.96
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.274
  additional property: Energy
    type: PropertyValue
    value: 0.098
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.967
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.723
  additional property: Liveness
    type: PropertyValue
    value: 0.681
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.156
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.522
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor: III. Andante - IV. Finale: Allegro
type: MusicRecording
duration: PT17M44S
duration ms: 1064451
explicit: false
by artist: Alexander Borodin
by artist: USSR State Symphony Orchestra
by artist: Yevgeny Svetlanov
in album: Borodin: Symphonies Nos. 1 & 2
  type: MusicAlbum
  date published: 2015-11-01
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USB8U1521476
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T00:45:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9176c9e58f96a2eb0b539a31a0c3c77812be31d926cfb05c04624bdfa48bc84b
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/USB8U1521476
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 0x9176c9e58f96a2eb0b539a31a0c3c77812be31d926cfb05c04624bdfa48bc84b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1521476.
  date published: 2026-07-31T02:19:15Z
audio: Symphony No. 2 in B Minor: III. Andante - IV. Finale: Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.477
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.207
  additional property: Energy
    type: PropertyValue
    value: 0.112
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.79
  additional property: Liveness
    type: PropertyValue
    value: 0.138
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.639
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Borodin: Symphony No. 2; Polovtsian Dances; In the Steppes of Central Asia
type: MusicAlbum
date published: 2014-02-04
track: Prince Igor
  type: MusicRecording
  duration: PT11M1S
  duration ms: 661440
  explicit: false
  by artist: Alexander Borodin
  by artist: Alexander Glazunov
  by artist: Royal Philharmonic Orchestra
  by artist: Ole Schmidt
  in album: Borodin: Symphony No. 2; Polovtsian Dances; In the Steppes of Central Asia
    type: MusicAlbum
    date published: 2014-02-04
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: USX761421501
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T10:14:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xde42771d64af499e847e9fdecd0a3ae3424a6a41f26297bb7341872d28350524
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960389
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960389
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761421501
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T10:20:10Z
  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 0xde42771d64af499e847e9fdecd0a3ae3424a6a41f26297bb7341872d28350524. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761421501.
    date published: 2026-07-31T10:20:10Z
  audio: Prince Igor
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.935
    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: 0.188
    additional property: Energy
      type: PropertyValue
      value: 0.106
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.939
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.93
    additional property: Liveness
      type: PropertyValue
      value: 0.129
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.77
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Prince Igor
  type: MusicRecording
  duration: PT14M9S
  duration ms: 849106
  explicit: false
  by artist: Alexander Borodin
  by artist: Royal Philharmonic Orchestra
  by artist: Ole Schmidt
  in album: Borodin: Symphony No. 2; Polovtsian Dances; In the Steppes of Central Asia
    type: MusicAlbum
    date published: 2014-02-04
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: USX761421502
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T11:58:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x22ab17ea858f9018cfd8c68135ff722e7237ffd373ddbc547ea9b51602afa8bb
  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/USX761421502
  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 0x22ab17ea858f9018cfd8c68135ff722e7237ffd373ddbc547ea9b51602afa8bb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761421502.
    date published: 2026-07-08T03:20:19Z
  audio: Prince Igor
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.547
    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: 0.178
    additional property: Energy
      type: PropertyValue
      value: 0.162
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.927
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.308
    additional property: Liveness
      type: PropertyValue
      value: 0.081
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.954
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: In the Steppes of Central Asia
  type: MusicRecording
  duration: PT7M19S
  duration ms: 439106
  explicit: false
  by artist: Alexander Borodin
  by artist: Royal Philharmonic Orchestra
  by artist: Ole Schmidt
  in album: Borodin: Symphony No. 2; Polovtsian Dances; In the Steppes of Central Asia
    type: MusicAlbum
    date published: 2014-02-04
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: USX761421504
  additional property: CopyrightID
  additional property: CopyrightStatus
  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: In the Steppes of Central Asia
track: Symphony No. 2 in B Minor

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T07:22:17+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x0ab32895be8392f7e7b756b4193d0982ba7283b5fe8af53cd4c526062a65a6b2

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761421504

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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 0x0ab32895be8392f7e7b756b4193d0982ba7283b5fe8af53cd4c526062a65a6b2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761421504.
date published: 2026-07-08T03:20:19Z

In the Steppes of Central Asia
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 104.803
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: 0.084
additional property: Energy
  type: PropertyValue
  value: 0.055
additional property: Speechiness
  type: PropertyValue
  value: 0.039
additional property: Acousticness
  type: PropertyValue
  value: 0.95
additional property: Instrumentalness
  type: PropertyValue
  value: 0.888
additional property: Liveness
  type: PropertyValue
  value: 0.122
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.038
additional property: Loudness (dB)
  type: PropertyValue
  value: -27.035
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Symphony No. 2 in B Minor
type: MusicRecording
duration: PT7M3S
duration ms: 423573
explicit: false
by artist: Alexander Borodin
by artist: Royal Philharmonic Orchestra
by artist: Ole Schmidt
in album: Borodin: Symphony No. 2; Polovtsian Dances; In the Steppes of Central Asia
  type: MusicAlbum
  date published: 2014-02-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USX761421505
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:23:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c759428c662df3b7243e25fece8ee37d1bcb013359e9e8ee0b0c2c7f6d14d7f
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/USX761421505
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 0x4c759428c662df3b7243e25fece8ee37d1bcb013359e9e8ee0b0c2c7f6d14d7f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761421505.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B Minor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.758
  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: 0.33
  additional property: Energy
    type: PropertyValue
    value: 0.216
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.915
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.948
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.091
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.764
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor
type: MusicRecording
duration: PT5M19S
duration ms: 319000
explicit: false
by artist: Alexander Borodin
by artist: Royal Philharmonic Orchestra
by artist: Ole Schmidt
in album: Borodin: Symphony No. 2; Polovtsian Dances; In the Steppes of Central Asia
  type: MusicAlbum
  date published: 2014-02-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USX761421506
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T22:25:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec481661d8ccd2c1210600c0bafc9834715fec49c71429ccc44889832e137120
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960362
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960362
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761421506
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:58:00Z
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 0xec481661d8ccd2c1210600c0bafc9834715fec49c71429ccc44889832e137120. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761421506.
  date published: 2026-07-31T06:58:00Z
audio: Symphony No. 2 in B Minor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.016
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.264
  additional property: Energy
    type: PropertyValue
    value: 0.084
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.916
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.13
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.273
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor
type: MusicRecording
duration: PT7M49S
duration ms: 469000
explicit: false
by artist: Alexander Borodin
by artist: Royal Philharmonic Orchestra
by artist: Ole Schmidt
in album: Borodin: Symphony No. 2; Polovtsian Dances; In the Steppes of Central Asia
  type: MusicAlbum
  date published: 2014-02-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USX761421507
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:02:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5052da97a1cb615243cb9ac052c7f211effc56e63e71804f39bde1b762728afa
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/USX761421507
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 0x5052da97a1cb615243cb9ac052c7f211effc56e63e71804f39bde1b762728afa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761421507.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B Minor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.623
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.067
  additional property: Energy
    type: PropertyValue
    value: 0.051
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.934
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.756
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.533
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor
type: MusicRecording
duration: PT7M8S
duration ms: 428000
explicit: false
by artist: Alexander Borodin
by artist: Royal Philharmonic Orchestra
by artist: Ole Schmidt
in album: Borodin: Symphony No. 2; Polovtsian Dances; In the Steppes of Central Asia
  type: MusicAlbum
  date published: 2014-02-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: USX761421508
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:20:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3b4ff1f513890fe1a6b2dd1e21b8c07307aad5f649fdb01b68e7272df6cca646
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/USX761421508
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 0x3b4ff1f513890fe1a6b2dd1e21b8c07307aad5f649fdb01b68e7272df6cca646. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761421508.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B Minor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.795
  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: 0.301
  additional property: Energy
    type: PropertyValue
    value: 0.152
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.836
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.514
  additional property: Liveness
    type: PropertyValue
    value: 0.065
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.111
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.418
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Borodin: Prince Igor (Live)
type: MusicAlbum
date published: 2013-12-01
track: Prince Igor: Overture (Live)
  type: MusicRecording
  duration: PT9M51S
  duration ms: 591160
  explicit: false
  by artist: Alexander Borodin
  by artist: Orchestra of the Bolshoi Theatre
  by artist: Yevgeny Svetlanov
  in album: Borodin: Prince Igor (Live)
    type: MusicAlbum
    date published: 2013-12-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: CZH401120618
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T09:57:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x531d796f9730346f0f0482ab21111b5f6b45139fc424ef2de8f9596c922374db
  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/CZH401120618
  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 0x531d796f9730346f0f0482ab21111b5f6b45139fc424ef2de8f9596c922374db. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZH401120618.
    date published: 2026-07-08T03:20:19Z
  audio: Prince Igor: Overture (Live)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.832
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.182
    additional property: Energy
      type: PropertyValue
      value: 0.192
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.921
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.86
    additional property: Liveness
      type: PropertyValue
      value: 0.779
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.148
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.07
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Borodin: Symphonic Works
type: MusicAlbum
date published: 2012-01-01
track: Petite Suite: I. Au couvent
  type: MusicRecording
  duration: PT6M1S
  duration ms: 361933
  explicit: false
  by artist: Alexander Borodin
  by artist: Yevgeny Svetlanov
  by artist: USSR State Symphony Orchestra
  in album: Borodin: Symphonic Works
    type: MusicAlbum
    date published: 2012-01-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: UK2Y21303052
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:07:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb20e8642c8c5af1f62c673fe08de507864c6472240368b507c75124b2cc757f2
  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/UK2Y21303052
  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 0xb20e8642c8c5af1f62c673fe08de507864c6472240368b507c75124b2cc757f2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21303052.
    date published: 2026-07-08T03:20:19Z
  audio: Petite Suite: I. Au couvent
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 107.402
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.134
    additional property: Energy
      type: PropertyValue
      value: 0.023
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.963
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.691
    additional property: Liveness
      type: PropertyValue
      value: 0.158
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.033
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.059
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
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      value: Minor

Borodin: Prince Igor
type: MusicAlbum
date published: 2012
track: Prince Igor, Act III: Polovtsian March "Rat idet domoy"
  type: MusicRecording
  duration: PT5M31S
  duration ms: 331611
  explicit: false
  by artist: Alexander Borodin
  by artist: хор Большого театра
  by artist: Mark Ermler
  by artist: Оркестр Большого театра
  in album: Borodin: Prince Igor
    type: MusicAlbum
    date published: 2012
  popularity: 1
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: UK2Y21602967
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T03:41:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2d1f07e9078b41c86a52acf978e1730ca7ff5ea70ca358a82c769d617231272c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960344
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960344
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602967
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T04:14:58Z
  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 0x2d1f07e9078b41c86a52acf978e1730ca7ff5ea70ca358a82c769d617231272c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602967.
    date published: 2026-07-31T04:14:58Z
  audio: Prince Igor, Act III: Polovtsian March "Rat idet domoy"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.23
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.45
    additional property: Energy
      type: PropertyValue
      value: 0.292
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.944
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.477
    additional property: Liveness
      type: PropertyValue
      value: 0.19
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.49
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.48
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Prince Igor: Overture
  type: MusicRecording
  duration: PT9M31S
  duration ms: 571594
  explicit: false
  by artist: Alexander Borodin
  by artist: Mark Ermler
  by artist: Оркестр Большого театра
  in album: Borodin: Prince Igor
    type: MusicAlbum
    date published: 2012
  popularity: 6
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: UK2Y21602937
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T19:07:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7ff4b7b14e33aded0a9d11df3940f0fe10a7da9234da842e8e73fa28257e67c6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602937
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T21:13:37Z
  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 0x7ff4b7b14e33aded0a9d11df3940f0fe10a7da9234da842e8e73fa28257e67c6. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602937.
    date published: 2026-07-29T21:13:37Z
  audio: Prince Igor: Overture
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.036
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.16
    additional property: Energy
      type: PropertyValue
      value: 0.231
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.936
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.458
    additional property: Liveness
      type: PropertyValue
      value: 0.066
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.064
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Prince Igor, Act II: Chorus of the Polovtsian Maidens "Na bezvode"
  type: MusicRecording
  duration: PT6M14S
  duration ms: 374235
  explicit: false
  by artist: Alexander Borodin
  by artist: Маргарита Миглау
  by artist: хор Большого театра
  by artist: Mark Ermler
  by artist: Оркестр Большого театра
  in album: Borodin: Prince Igor
    type: MusicAlbum
    date published: 2012
  popularity: 3
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: UK2Y21602953
  additional property: CopyrightID
  additional property: CopyrightStatus
  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: Prince Igor, Act II: Chorus of the Polovtsian Maidens "Na bezvode"
track: Prince Igor, Prologue: Introduction "Solntsu krasnomu slava!"
track: Prince Igor, Act II: Dance of the Polovtsian Maidens
track: Prince Igor, Prologue: Introduction "Idem na bran s vragom Rusi!"
track: Prince Igor, Act II: Konchakovna's Cavatina "Merknet svet dnevnoy"
track: Prince Igor, Act II: Scene and Chorus "Podrugi-devitsy"
track: Prince Igor, Prologue: Introduction "Knyzya, pora nam vystupat"
track: Prince Igor, Prologue: Introduction "Pust pridut knyagini i boyaryni"
track: Prince Igor, Act II: Vladimir's Recitative and Cavatina "Medlenno den ugasal"
track: Prince Igor, Act I Scene 1: Chorus "Goy! Slava! Slava Volodimiru"
track: Prince Igor, Act I Scene 1: Vladimir Galitsky's Song "Greshno tait"
track: Prince Igor, Act II: Prince Igor's Aria "Ni sna, ni otdykha"
track: Prince Igor, Act I Scene 1: Recitative "Knyazyu Galitskomu slava!"
track: Prince Igor, Act I Scene 1: Chorus and Scene "Oy, likhonko!"
track: Prince Igor, Act I Scene 1: Scene "Stoy, rebyata, slukhay!"
track: Prince Igor, Act I Scene 1: "Chto u knyazya da Volodimira"
track: Prince Igor, Act II: Polovtsian Dance with Chorus "Uletay na krylyakh vetra"
track: Prince Igor, Act I Scene 1: "Da, vot komu by knyazhit na Putivle!"
track: Prince Igor, Act II: Polovtsian Dance with Chorus "Poyte pesni slavy khanu!"
track: Prince Igor, Act I Scene 2: Yaroslavna's Arioso "Nemalo vremeni proshlo"
track: Prince Igor, Act II: Polovtsian Dance with Chorus "Slavoy dedam raven khan"
track: Prince Igor, Act I Scene 2: Yaroslavna and Maidens Scene "Tam devushki prishli"
track: Prince Igor, Act I: Finale "Dobro pozhalovat, boyare"

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-31T07:08:50+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xbb1cde1fd60ac4c95c532f85c7764deba01a64f5981cd3cb0f540ac52e90b4a6

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960370

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960370

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602953

OTSTimestamp
type: PropertyValue
value: 2026-07-31T08:38:45Z

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 0xbb1cde1fd60ac4c95c532f85c7764deba01a64f5981cd3cb0f540ac52e90b4a6. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602953.
date published: 2026-07-31T08:38:45Z

Prince Igor, Act II: Chorus of the Polovtsian Maidens "Na bezvode"
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 110.255
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
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  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.167
additional property: Energy
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additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
  type: PropertyValue
  value: 0.984
additional property: Instrumentalness
  type: PropertyValue
  value: 0.006
additional property: Liveness
  type: PropertyValue
  value: 0.118
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.037
additional property: Loudness (dB)
  type: PropertyValue
  value: -29.158
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor

Prince Igor, Prologue: Introduction "Solntsu krasnomu slava!"
type: MusicRecording
duration: PT3M55S
duration ms: 235127
explicit: false
by artist: Alexander Borodin
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 4
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602938
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:29:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x872d4b8d321f28fa0d88bfdd2e9b936d51a12a65a0960b07426ab3624f039b0e
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/UK2Y21602938
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 0x872d4b8d321f28fa0d88bfdd2e9b936d51a12a65a0960b07426ab3624f039b0e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602938.
  date published: 2026-07-30T08:33:28Z
audio: Prince Igor, Prologue: Introduction "Solntsu krasnomu slava!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.006
  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: 0.18
  additional property: Energy
    type: PropertyValue
    value: 0.256
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.913
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.395
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.108
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.617
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act II: Dance of the Polovtsian Maidens
type: MusicRecording
duration: PT2M21S
duration ms: 141703
explicit: false
by artist: Alexander Borodin
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 3
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602954
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T00:50:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcbcfb337f3c36f782b9916a0a73b39f266598eb6d344a2478055aadcfc3bcb97
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/UK2Y21602954
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 0xcbcfb337f3c36f782b9916a0a73b39f266598eb6d344a2478055aadcfc3bcb97. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602954.
  date published: 2026-07-31T02:19:15Z
audio: Prince Igor, Act II: Dance of the Polovtsian Maidens
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 172.2
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.226
  additional property: Energy
    type: PropertyValue
    value: 0.134
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.771
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.16
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.55
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Prologue: Introduction "Idem na bran s vragom Rusi!"
type: MusicRecording
duration: PT2M27S
duration ms: 147659
explicit: false
by artist: Alexander Borodin
by artist: Иван Петров
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602939
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:11:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3e5cfbc24c0f97912653f583196da27d37ae66222383ad9b7f28008c130364b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960389
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960389
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602939
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:20:10Z
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 0x3e5cfbc24c0f97912653f583196da27d37ae66222383ad9b7f28008c130364b9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602939.
  date published: 2026-07-31T10:20:10Z
audio: Prince Igor, Prologue: Introduction "Idem na bran s vragom Rusi!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.424
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.298
  additional property: Energy
    type: PropertyValue
    value: 0.325
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.119
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.003
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act II: Konchakovna's Cavatina "Merknet svet dnevnoy"
type: MusicRecording
duration: PT5M58S
duration ms: 358024
explicit: false
by artist: Alexander Borodin
by artist: Elena Obraztsova
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 1
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602955
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T00:46:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x167282e23a4980a07893b8267e55dc022a7c717a89c0276e314ea3bd3c0ef75f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960494
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960494
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602955
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T01:44:32Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167282e23a4980a07893b8267e55dc022a7c717a89c0276e314ea3bd3c0ef75f. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602955.
  date published: 2026-08-01T01:44:32Z
audio: Prince Igor, Act II: Konchakovna's Cavatina "Merknet svet dnevnoy"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.035
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.206
  additional property: Energy
    type: PropertyValue
    value: 0.209
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.152
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.862
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act II: Scene and Chorus "Podrugi-devitsy"
type: MusicRecording
duration: PT2M50S
duration ms: 170073
explicit: false
by artist: Alexander Borodin
by artist: Elena Obraztsova
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 1
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602956
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:07:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf4a465b5db64cdd03b0bb2284a3d5be9e6055e4c834ce7e6eadbceacd2e5aec7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602956
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0xf4a465b5db64cdd03b0bb2284a3d5be9e6055e4c834ce7e6eadbceacd2e5aec7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602956.
  date published: 2026-07-31T15:20:15Z
audio: Prince Igor, Act II: Scene and Chorus "Podrugi-devitsy"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.856
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.232
  additional property: Energy
    type: PropertyValue
    value: 0.034
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.23
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.071
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.305
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Prologue: Introduction "Knyzya, pora nam vystupat"
type: MusicRecording
duration: PT5M50S
duration ms: 350394
explicit: false
by artist: Alexander Borodin
by artist: Иван Петров
by artist: Артур Эйзен
by artist: Владимир Атлантов
by artist: Valery Yaroslavtsev
by artist: Konstantin Baskov
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602940
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:31:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8143cfe3cfbd96685a35ed87c14cd99c2d08cb6879fc47d56ca3aabcf7db6c54
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/UK2Y21602940
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 0x8143cfe3cfbd96685a35ed87c14cd99c2d08cb6879fc47d56ca3aabcf7db6c54. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602940.
  date published: 2026-07-08T03:20:19Z
audio: Prince Igor, Prologue: Introduction "Knyzya, pora nam vystupat"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.214
  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: 0.266
  additional property: Energy
    type: PropertyValue
    value: 0.144
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.904
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.451
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Prologue: Introduction "Pust pridut knyagini i boyaryni"
type: MusicRecording
duration: PT8M8S
duration ms: 488481
explicit: false
by artist: Alexander Borodin
by artist: Иван Петров
by artist: Tatiana Tugarinova
by artist: Владимир Атлантов
by artist: Артур Эйзен
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602941
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:09:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa7fa77229a46165d137faa7474aa34f75da7a3f602aa82706f55e479e62de32
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/UK2Y21602941
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 0xfa7fa77229a46165d137faa7474aa34f75da7a3f602aa82706f55e479e62de32. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602941.
  date published: 2026-07-08T03:20:19Z
audio: Prince Igor, Prologue: Introduction "Pust pridut knyagini i boyaryni"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.249
  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: 0.206
  additional property: Energy
    type: PropertyValue
    value: 0.278
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.914
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.049
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.003
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act II: Vladimir's Recitative and Cavatina "Medlenno den ugasal"
type: MusicRecording
duration: PT5M42S
duration ms: 342811
explicit: false
by artist: Alexander Borodin
by artist: Владимир Атлантов
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 1
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602958
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:26:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x817cfeb1ba80dab350286f146e88a71f127285819a9f459a95e444a9464e1bf1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602958
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18Z
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 0x817cfeb1ba80dab350286f146e88a71f127285819a9f459a95e444a9464e1bf1. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602958.
  date published: 2026-07-31T15:59:18Z
audio: Prince Igor, Act II: Vladimir's Recitative and Cavatina "Medlenno den ugasal"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.179
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.244
  additional property: Energy
    type: PropertyValue
    value: 0.195
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.07
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.093
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.556
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act I Scene 1: Chorus "Goy! Slava! Slava Volodimiru"
type: MusicRecording
duration: PT2M1S
duration ms: 121454
explicit: false
by artist: Alexander Borodin
by artist: Valery Yaroslavtsev
by artist: Konstantin Baskov
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602942
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T22:26:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x734024137ebba1e812310344678184ae3aecdee60b260a3d96cc3cccc32cd78f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960481
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960481
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602942
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:51:35Z
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 0x734024137ebba1e812310344678184ae3aecdee60b260a3d96cc3cccc32cd78f. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602942.
  date published: 2026-07-31T23:51:35Z
audio: Prince Igor, Act I Scene 1: Chorus "Goy! Slava! Slava Volodimiru"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.269
  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: 0.34
  additional property: Energy
    type: PropertyValue
    value: 0.273
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.062
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.493
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.063
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act I Scene 1: Vladimir Galitsky's Song "Greshno tait"
type: MusicRecording
duration: PT3M58S
duration ms: 238511
explicit: false
by artist: Alexander Borodin
by artist: Артур Эйзен
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602943
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T14:47:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf9f007a21fd02cf5a894c5bd5062883ff583bd03c902f9b991616bb83635254
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960273
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602943
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9f007a21fd02cf5a894c5bd5062883ff583bd03c902f9b991616bb83635254. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602943.
  date published: 2026-07-30T15:42:38Z
audio: Prince Igor, Act I Scene 1: Vladimir Galitsky's Song "Greshno tait"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.242
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.305
  additional property: Energy
    type: PropertyValue
    value: 0.321
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.962
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.323
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.216
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Prince Igor, Act II: Prince Igor's Aria "Ni sna, ni otdykha"
type: MusicRecording
duration: PT6M51S
duration ms: 411531
explicit: false
by artist: Alexander Borodin
by artist: Иван Петров
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 1
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602960
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:11:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec7b5e0f8767f83a14ec33ee371f4fc6cf8f8c200442a11b013993befa6fe93d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602960
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xec7b5e0f8767f83a14ec33ee371f4fc6cf8f8c200442a11b013993befa6fe93d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602960.
  date published: 2026-07-08T03:22:41Z
audio: Prince Igor, Act II: Prince Igor's Aria "Ni sna, ni otdykha"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.86
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.184
  additional property: Energy
    type: PropertyValue
    value: 0.137
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.11
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.008
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Prince Igor, Act I Scene 1: Recitative "Knyazyu Galitskomu slava!"
type: MusicRecording
duration: PT1M11S
duration ms: 71103
explicit: false
by artist: Alexander Borodin
by artist: Артур Эйзен
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 1
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602944
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:48:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1c53383720d0cf854919ffa2947a88ac67ae16c3a51eab53490f89611d9dd206
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/UK2Y21602944
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 0x1c53383720d0cf854919ffa2947a88ac67ae16c3a51eab53490f89611d9dd206. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602944.
  date published: 2026-07-08T03:20:19Z
audio: Prince Igor, Act I Scene 1: Recitative "Knyazyu Galitskomu slava!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.965
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.456
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.965
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.203
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.124
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.21
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Prince Igor, Act I Scene 1: Chorus and Scene "Oy, likhonko!"
type: MusicRecording
duration: PT2M29S
duration ms: 149685
explicit: false
by artist: Alexander Borodin
by artist: Артур Эйзен
by artist: Konstantin Baskov
by artist: Valery Yaroslavtsev
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602945
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:07:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa764a0d47f59a3f1126478be74cc6fc101d158e2fcdaeb5e1c63f348056a9fc0
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/UK2Y21602945
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 0xa764a0d47f59a3f1126478be74cc6fc101d158e2fcdaeb5e1c63f348056a9fc0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602945.
  date published: 2026-07-31T12:24:41Z
audio: Prince Igor, Act I Scene 1: Chorus and Scene "Oy, likhonko!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.99
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.363
  additional property: Energy
    type: PropertyValue
    value: 0.182
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.137
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.187
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.251
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Prince Igor, Act I Scene 1: Scene "Stoy, rebyata, slukhay!"
type: MusicRecording
duration: PT0M50S
duration ms: 50870
explicit: false
by artist: Alexander Borodin
by artist: Konstantin Baskov
by artist: Valery Yaroslavtsev
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 1
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602946
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:33:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc81da8b3f6ea8ee4ea6ca6e8dcec2264869653497f2b4810858449aa86794fc
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/UK2Y21602946
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 0xdc81da8b3f6ea8ee4ea6ca6e8dcec2264869653497f2b4810858449aa86794fc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602946.
  date published: 2026-07-08T03:20:19Z
audio: Prince Igor, Act I Scene 1: Scene "Stoy, rebyata, slukhay!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.342
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.521
  additional property: Energy
    type: PropertyValue
    value: 0.24
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.365
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.632
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.895
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act I Scene 1: "Chto u knyazya da Volodimira"
type: MusicRecording
duration: PT3M12S
duration ms: 192316
explicit: false
by artist: Alexander Borodin
by artist: Konstantin Baskov
by artist: Valery Yaroslavtsev
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 1
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602947
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:13:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc68774949825bae90f21ad049586d3f4ed16ed3f4f5f60d4502c1645132fc000
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960456
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960456
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602947
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:57Z
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 0xc68774949825bae90f21ad049586d3f4ed16ed3f4f5f60d4502c1645132fc000. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602947.
  date published: 2026-07-31T19:53:57Z
audio: Prince Igor, Act I Scene 1: "Chto u knyazya da Volodimira"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.759
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.332
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.388
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.499
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.822
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Prince Igor, Act II: Polovtsian Dance with Chorus "Uletay na krylyakh vetra"
type: MusicRecording
duration: PT3M45S
duration ms: 225933
explicit: false
by artist: Alexander Borodin
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 6
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602964
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:25:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x23c697e884e034d4d9b5caf38e57820a8e15b64493b7f602a67d7352c63e249b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957026
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957026
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602964
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T11:02:43Z
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 0x23c697e884e034d4d9b5caf38e57820a8e15b64493b7f602a67d7352c63e249b. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602964.
  date published: 2026-07-07T11:02:43Z
audio: Prince Igor, Act II: Polovtsian Dance with Chorus "Uletay na krylyakh vetra"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.525
  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: 0.143
  additional property: Energy
    type: PropertyValue
    value: 0.054
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.402
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.043
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.125
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act I Scene 1: "Da, vot komu by knyazhit na Putivle!"
type: MusicRecording
duration: PT2M27S
duration ms: 147151
explicit: false
by artist: Alexander Borodin
by artist: Konstantin Baskov
by artist: Valery Yaroslavtsev
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 1
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602948
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T12:09:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x908fa573088265047e6060d99342adc0dbd1d68f172c87c33f5bd02ac407dc2a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602948
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
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 0x908fa573088265047e6060d99342adc0dbd1d68f172c87c33f5bd02ac407dc2a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602948.
  date published: 2026-07-31T13:04:34Z
audio: Prince Igor, Act I Scene 1: "Da, vot komu by knyazhit na Putivle!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.498
  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: 0.381
  additional property: Energy
    type: PropertyValue
    value: 0.326
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.834
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.02
  additional property: Liveness
    type: PropertyValue
    value: 0.241
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.617
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.532
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act II: Polovtsian Dance with Chorus "Poyte pesni slavy khanu!"
type: MusicRecording
duration: PT2M4S
duration ms: 124152
explicit: false
by artist: Alexander Borodin
by artist: Alexander Vedernikov (Sr.)
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 3
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602965
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T06:13:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe980817ecb4ad8b67a093767c356ea698630eb88777e68934bbf7d5f798300a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960216
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960216
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602965
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T06:39:12Z
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 0xe980817ecb4ad8b67a093767c356ea698630eb88777e68934bbf7d5f798300a3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602965.
  date published: 2026-07-30T06:39:12Z
audio: Prince Igor, Act II: Polovtsian Dance with Chorus "Poyte pesni slavy khanu!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.825
  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: 0.36
  additional property: Energy
    type: PropertyValue
    value: 0.285
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.937
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.469
  additional property: Liveness
    type: PropertyValue
    value: 0.101
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.282
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.896
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act I Scene 2: Yaroslavna's Arioso "Nemalo vremeni proshlo"
type: MusicRecording
duration: PT9M21S
duration ms: 561745
explicit: false
by artist: Alexander Borodin
by artist: Tatiana Tugarinova
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602949
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:02:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x24ac04eec862588d15ab6119f9c3000c81042a38cd20900b2908b5941d3d0b74
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/UK2Y21602949
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 0x24ac04eec862588d15ab6119f9c3000c81042a38cd20900b2908b5941d3d0b74. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602949.
  date published: 2026-07-08T03:20:19Z
audio: Prince Igor, Act I Scene 2: Yaroslavna's Arioso "Nemalo vremeni proshlo"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.176
  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: 0.144
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.071
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.29
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Prince Igor, Act II: Polovtsian Dance with Chorus "Slavoy dedam raven khan"
type: MusicRecording
duration: PT5M7S
duration ms: 307247
explicit: false
by artist: Alexander Borodin
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 3
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602966
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T14:42:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8fa8cf742f15d5658e605dfb36f3604e58259689bac1725767e44edbc1b36b8
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/UK2Y21602966
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 0xe8fa8cf742f15d5658e605dfb36f3604e58259689bac1725767e44edbc1b36b8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602966.
  date published: 2026-07-30T14:53:07Z
audio: Prince Igor, Act II: Polovtsian Dance with Chorus "Slavoy dedam raven khan"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.325
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.239
  additional property: Energy
    type: PropertyValue
    value: 0.263
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.829
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.911
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.214
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.97
  additional property: Key Name
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    value: A
  additional property: Mode Name
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    value: Minor

Prince Igor, Act I Scene 2: Yaroslavna and Maidens Scene "Tam devushki prishli"
type: MusicRecording
duration: PT4M24S
duration ms: 264654
explicit: false
by artist: Alexander Borodin
by artist: Irina Terpilovskaya
by artist: Tatiana Tugarinova
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602950
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:01:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8bdd85fb3e3f2643c81b6f03971c1f0e61fc2bb1c0f851041c75b97169a3d21e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602950
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdd85fb3e3f2643c81b6f03971c1f0e61fc2bb1c0f851041c75b97169a3d21e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602950.
  date published: 2026-07-31T23:30:38Z
audio: Prince Igor, Act I Scene 2: Yaroslavna and Maidens Scene "Tam devushki prishli"
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 106.363
  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
    type: PropertyValue
    value: 0
  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: Mode Name
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Prince Igor, Act I: Finale "Dobro pozhalovat, boyare"
type: MusicRecording
duration: PT8M59S
duration ms: 539467
explicit: false
by artist: Alexander Borodin
by artist: Tatiana Tugarinova
by artist: хор Большого театра
by artist: Mark Ermler
by artist: Оркестр Большого театра
in album: Borodin: Prince Igor
  type: MusicAlbum
  date published: 2012
popularity: 1
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: UK2Y21602952
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:01:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9138028e5c6ad9065bcb2c35cb08b78fd9cdec93743f0f30d0d97088a8e2e7e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602952
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x9138028e5c6ad9065bcb2c35cb08b78fd9cdec93743f0f30d0d97088a8e2e7e1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK2Y21602952.
  date published: 2026-07-08T03:22:41Z
audio: Prince Igor, Act I: Finale "Dobro pozhalovat, boyare"
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 116.863
  additional property: Musical Key
    type: PropertyValue
    value: 6
  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: 0.315
  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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    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.078
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.114
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.172
  additional property: Key Name
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    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Borodin: Symphonies Nos. 1-3
type: MusicAlbum
date published: 2011-07-05
track: Symphony No. 1 in E-Flat Major *: I. Adagio - Allegro - Andantino
  type: MusicRecording
  duration: PT12M29S
  duration ms: 749227
  explicit: false
  by artist: Alexander Borodin
  by artist: Seattle Symphony Orchestra
  by artist: Gerard Schwarz
  in album: Borodin: Symphonies Nos. 1-3
    type: MusicAlbum
    date published: 2011-07-05
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: HKI191121701
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T00:46:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x82cbf8db6441a91d6d65d899be4a7534e34c3e84214f6e24aa0014b586fe5533
  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/HKI191121701
  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 0x82cbf8db6441a91d6d65d899be4a7534e34c3e84214f6e24aa0014b586fe5533. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121701.
    date published: 2026-07-31T02:19:15Z
  audio: Symphony No. 1 in E-Flat Major *: I. Adagio - Allegro - Andantino
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.711
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.219
    additional property: Energy
      type: PropertyValue
      value: 0.071
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.965
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.892
    additional property: Liveness
      type: PropertyValue
      value: 0.16
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.086
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.774
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Symphony No. 1 in E-Flat Major *: II. Scherzo: Prestissimo - Trio: Allegro
  type: MusicRecording
  duration: PT6M51S
  duration ms: 411680
  explicit: false
  by artist: Alexander Borodin
  by artist: Seattle Symphony Orchestra
  by artist: Gerard Schwarz
  in album: Borodin: Symphonies Nos. 1-3
    type: MusicAlbum
    date published: 2011-07-05
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: HKI191121702
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T19:58:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x99db0c3f67323a524c5c17a18b3f3e3cf0a51cdb57f8c783f870f6483b6c99bd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121702
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T20:09:33Z
  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 0x99db0c3f67323a524c5c17a18b3f3e3cf0a51cdb57f8c783f870f6483b6c99bd. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121702.
    date published: 2026-07-30T20:09:33Z
  audio: Symphony No. 1 in E-Flat Major *: II. Scherzo: Prestissimo - Trio: Allegro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.35
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.322
    additional property: Energy
      type: PropertyValue
      value: 0.121
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.964
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.926
    additional property: Liveness
      type: PropertyValue
      value: 0.102
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.214
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.224
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Symphony No. 1 in E-Flat Major *: III. Andante
  type: MusicRecording
  duration: PT7M41S
  duration ms: 461266
  explicit: false
  by artist: Alexander Borodin
  by artist: Seattle Symphony Orchestra
  by artist: Gerard Schwarz
  in album: Borodin: Symphonies Nos. 1-3
    type: MusicAlbum
    date published: 2011-07-05
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: HKI191121703
  additional property: CopyrightID
  additional property: CopyrightStatus
  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: Symphony No. 1 in E-Flat Major *: III. Andante
track: Symphony No. 1 in E-Flat Major *: IV. Alegro molto vivo
track: Symphony No. 2 in B Minor: I. Allegro
track: Symphony No. 2 in B Minor: II. Scherzo: Prestissimo. Trio: Allegretto
track: Symphony No. 2 in B Minor: III. Andante
track: Symphony No. 2 in B Minor: IV. Finale: Allegro
track: Symphony No. 3 in A Minor (unfinished) (orch. A.K. Glazunov): I. Moderato assai
track: Symphony No. 3 in A Minor (unfinished) (orch. A.K. Glazunov): II. Scherzo: Vivo - Trio: Moderato

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-30T22:01:53+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xe24d564dd3aa992133b35e8e8f10ea170044690a69e53a75116865db7f723d23

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960321

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960321

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121703

OTSTimestamp
type: PropertyValue
value: 2026-07-30T22:27:30Z

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 0xe24d564dd3aa992133b35e8e8f10ea170044690a69e53a75116865db7f723d23. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121703.
date published: 2026-07-30T22:27:30Z

Symphony No. 1 in E-Flat Major *: III. Andante
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
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additional property: Musical Key
  type: PropertyValue
  value: 2
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: 0.072
additional property: Energy
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additional property: Speechiness
  type: PropertyValue
  value: 0.046
additional property: Acousticness
  type: PropertyValue
  value: 0.977
additional property: Instrumentalness
  type: PropertyValue
  value: 0.707
additional property: Liveness
  type: PropertyValue
  value: 0.09
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.036
additional property: Loudness (dB)
  type: PropertyValue
  value: -26.924
additional property: Key Name
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  value: D
additional property: Mode Name
  type: PropertyValue
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Symphony No. 1 in E-Flat Major *: IV. Alegro molto vivo
type: MusicRecording
duration: PT7M8S
duration ms: 428146
explicit: false
by artist: Alexander Borodin
by artist: Seattle Symphony Orchestra
by artist: Gerard Schwarz
in album: Borodin: Symphonies Nos. 1-3
  type: MusicAlbum
  date published: 2011-07-05
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: HKI191121704
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:13:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf8dd259a87361ea9186925c17a9569335e56c6e58e4af7015d4f34184059335d
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/HKI191121704
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 0xf8dd259a87361ea9186925c17a9569335e56c6e58e4af7015d4f34184059335d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121704.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 1 in E-Flat Major *: IV. Alegro molto vivo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.039
  additional property: Musical Key
    type: PropertyValue
    value: 3
  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: 0.404
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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    value: 0.976
  additional property: Instrumentalness
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    value: 0.897
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.145
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.369
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
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Symphony No. 2 in B Minor: I. Allegro
type: MusicRecording
duration: PT6M56S
duration ms: 416013
explicit: false
by artist: Alexander Borodin
by artist: Seattle Symphony Orchestra
by artist: Gerard Schwarz
in album: Borodin: Symphonies Nos. 1-3
  type: MusicAlbum
  date published: 2011-07-05
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: HKI191121705
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:56:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8831390c2a142278eaa69f2fb4a59e67a3998b5364c982f3b881f755aaa45db
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/HKI191121705
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 0xb8831390c2a142278eaa69f2fb4a59e67a3998b5364c982f3b881f755aaa45db. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121705.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B Minor: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.364
  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: 0.344
  additional property: Energy
    type: PropertyValue
    value: 0.182
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.902
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.152
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.717
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor: II. Scherzo: Prestissimo. Trio: Allegretto
type: MusicRecording
duration: PT5M31S
duration ms: 331306
explicit: false
by artist: Alexander Borodin
by artist: Seattle Symphony Orchestra
by artist: Gerard Schwarz
in album: Borodin: Symphonies Nos. 1-3
  type: MusicAlbum
  date published: 2011-07-05
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: HKI191121706
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:34:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x743674680631b79a13579d65480b8d7a48c8d4fbac8e75cd8ee80d68d60f3721
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/HKI191121706
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 0x743674680631b79a13579d65480b8d7a48c8d4fbac8e75cd8ee80d68d60f3721. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121706.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B Minor: II. Scherzo: Prestissimo. Trio: Allegretto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.611
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.257
  additional property: Energy
    type: PropertyValue
    value: 0.078
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.906
  additional property: Liveness
    type: PropertyValue
    value: 0.347
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.134
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.998
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor: III. Andante
type: MusicRecording
duration: PT7M46S
duration ms: 466560
explicit: false
by artist: Alexander Borodin
by artist: Seattle Symphony Orchestra
by artist: Gerard Schwarz
in album: Borodin: Symphonies Nos. 1-3
  type: MusicAlbum
  date published: 2011-07-05
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: HKI191121707
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:05:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd35bf8f8f997a286b4fb83b2d4fa1cf29a0f989009ff4efb28ad12a8aecbfe16
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/HKI191121707
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 0xd35bf8f8f997a286b4fb83b2d4fa1cf29a0f989009ff4efb28ad12a8aecbfe16. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121707.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B Minor: III. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.867
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.08
  additional property: Energy
    type: PropertyValue
    value: 0.054
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.832
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.856
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor: IV. Finale: Allegro
type: MusicRecording
duration: PT6M19S
duration ms: 379400
explicit: false
by artist: Alexander Borodin
by artist: Seattle Symphony Orchestra
by artist: Gerard Schwarz
in album: Borodin: Symphonies Nos. 1-3
  type: MusicAlbum
  date published: 2011-07-05
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: HKI191121708
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:57:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae2a8a920d0f8d742abe30528951e9f7cf4a6a42a94c9915b51dee724acb65aa
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/HKI191121708
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 0xae2a8a920d0f8d742abe30528951e9f7cf4a6a42a94c9915b51dee724acb65aa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121708.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B Minor: IV. Finale: Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 148.38
  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: 0.331
  additional property: Energy
    type: PropertyValue
    value: 0.189
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.552
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.082
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.577
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Symphony No. 3 in A Minor (unfinished) (orch. A.K. Glazunov): I. Moderato assai
type: MusicRecording
duration: PT7M59S
duration ms: 479840
explicit: false
by artist: Alexander Glazunov
by artist: Alexander Borodin
by artist: Seattle Symphony Orchestra
by artist: Gerard Schwarz
in album: Borodin: Symphonies Nos. 1-3
  type: MusicAlbum
  date published: 2011-07-05
isrc code: HKI191121709
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:34:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6d5e09cf585861e7f9e08300574c94989c1b6aeeee74aba87ec66fc6068bfb33
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/HKI191121709
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 0x6d5e09cf585861e7f9e08300574c94989c1b6aeeee74aba87ec66fc6068bfb33. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121709.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 3 in A Minor (unfinished) (orch. A.K. Glazunov): I. Moderato assai
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.145
  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: 0.035
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.867
  additional property: Liveness
    type: PropertyValue
    value: 0.058
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.096
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.216
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 3 in A Minor (unfinished) (orch. A.K. Glazunov): II. Scherzo: Vivo - Trio: Moderato
type: MusicRecording
duration: PT9M36S
duration ms: 576306
explicit: false
by artist: Alexander Glazunov
by artist: Alexander Borodin
by artist: Seattle Symphony Orchestra
by artist: Gerard Schwarz
in album: Borodin: Symphonies Nos. 1-3
  type: MusicAlbum
  date published: 2011-07-05
isrc code: HKI191121710
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T13:41:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a5aab5e1af407aad52a9ddc943b681de5c89bddf01d726c6fb920cb998b630b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960264
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960264
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121710
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5aab5e1af407aad52a9ddc943b681de5c89bddf01d726c6fb920cb998b630b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191121710.
  date published: 2026-07-30T14:36:16Z
audio: Symphony No. 3 in A Minor (unfinished) (orch. A.K. Glazunov): II. Scherzo: Vivo - Trio: Moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 154.096
  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: 0.302
  additional property: Energy
    type: PropertyValue
    value: 0.108
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.873
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.092
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.935
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Borodin: Chamber Music
type: MusicAlbum
date published: 2009
track: String Quartet No. 1 in A Major: I. Moderato
  type: MusicRecording
  duration: PT13M52S
  duration ms: 832796
  explicit: false
  by artist: Alexander Borodin
  by artist: Moscow String Quartet
  in album: Borodin: Chamber Music
    type: MusicAlbum
    date published: 2009
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: NLY330905076
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T03:56:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2ef132aee9850a9f44a9f002ba6bb527be17155fa8575b0a67380cf8025cdbe7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905076
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x2ef132aee9850a9f44a9f002ba6bb527be17155fa8575b0a67380cf8025cdbe7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905076.
    date published: 2026-07-02T03:55:08Z
  audio: String Quartet No. 1 in A Major: I. Moderato
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.575
    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: 0.195
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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track: String Quartet No. 1 in A Major: II. Andante con moto
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  by artist: Alexander Borodin
  by artist: Moscow String Quartet
  in album: Borodin: Chamber Music
    type: MusicAlbum
    date published: 2009
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: NLY330905077
  additional property: CopyrightID
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960144
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905077
  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 0xb3e3a2580fae61243232c529a649cb8ed0b59985723923bf0cd7d9653e2ea99f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905077.
    date published: 2026-07-29T21:09:47Z
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  by artist: Alexander Borodin
  by artist: Moscow String Quartet
  in album: Borodin: Chamber Music
    type: MusicAlbum
    date published: 2009
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: NLY330905078
  additional property: CopyrightID
  additional property: CopyrightStatus
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  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: String Quartet No. 1 in A Major: III. Scherzo. Prestissimo
track: String Quartet No. 1 in A Major: IV. Finale. Andante - Allegro risoluto
track: Piano Quintet in C Minor: I. Andante
track: String Quartet No. 2 in D Major: I. Allegro moderato
track: String Quartet No. 2 in D Major: II. Scherzo. Allegro
track: String Quartet No. 2 in D Major: III. Nocturne. Andante
track: String Quintet in F Minor: I. Allegro con brio
track: Sextet in D Minor: I. Allegro
track: Sextet in D Minor: Trio in G Minor for two Violins and Cello on a Russian song 'What have I done to hurt You?'
track: Trio in G Major for two Violins and Cello: I. Allegro
track: Piano Trio in D Major: I. Allegro con brio
track: Piano Trio in D Major: II. Romance. Andante

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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905078

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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 0x5b79aca2467aff4a9b0e90c55da64bdc06d839ef83a77be103d31b3ec000a73f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905078.
date published: 2026-07-08T03:20:19Z

String Quartet No. 1 in A Major: III. Scherzo. Prestissimo
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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String Quartet No. 1 in A Major: IV. Finale. Andante - Allegro risoluto
type: MusicRecording
duration: PT11M3S
duration ms: 663466
explicit: false
by artist: Alexander Borodin
by artist: Moscow String Quartet
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905079
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/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905079
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 0xd97fc437dc93a965e23862dee6a03577eb851f1ff63702cba17994613ec1e833. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905079.
  date published: 2026-07-31T23:30:38Z
audio: String Quartet No. 1 in A Major: IV. Finale. Andante - Allegro risoluto
  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
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  additional property: Energy
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Piano Quintet in C Minor: I. Andante
type: MusicRecording
duration: PT5M34S
duration ms: 334200
explicit: false
by artist: Alexander Borodin
by artist: Alexander Mndoiantz
by artist: Moscow String Quartet
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905080
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:11:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x679fc0d830db02e722c2f111ce0a8f1593f27c64454951cd0035cbc3ddedabff
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/NLY330905080
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679fc0d830db02e722c2f111ce0a8f1593f27c64454951cd0035cbc3ddedabff. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905080.
  date published: 2026-07-08T03:20:19Z
audio: Piano Quintet in C Minor: I. Andante
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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String Quartet No. 2 in D Major: I. Allegro moderato
type: MusicRecording
duration: PT8M28S
duration ms: 508651
explicit: false
by artist: Alexander Borodin
by artist: Moscow String Quartet
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905083
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 0x48262c794feea89bc5cacc8bf806741a88583c6483c1392b6fe019d099c6490d. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905083.
  date published: 2026-08-01T00:40:43Z
audio: String Quartet No. 2 in D Major: I. Allegro moderato
  type: AudioObject
  additional property: Tempo (BPM)
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String Quartet No. 2 in D Major: II. Scherzo. Allegro
type: MusicRecording
duration: PT4M54S
duration ms: 294413
explicit: false
by artist: Alexander Borodin
by artist: Moscow String Quartet
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905084
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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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 0x417f4cbbe5c84475d42ab9db094e555323ecf0c1843326381f3383a621738649. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905084.
  date published: 2026-07-08T03:22:41Z
audio: String Quartet No. 2 in D Major: II. Scherzo. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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String Quartet No. 2 in D Major: III. Nocturne. Andante
type: MusicRecording
duration: PT8M4S
duration ms: 484400
explicit: false
by artist: Alexander Borodin
by artist: Moscow String Quartet
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905085
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905085
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 0xb5383a64e9192fd4592d77e46f8f283a6fcd51d80c53d692be7051aaa803c802. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905085.
  date published: 2026-07-08T03:20:19Z
audio: String Quartet No. 2 in D Major: III. Nocturne. Andante
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 90.561
  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: 0.131
  additional property: Energy
    type: PropertyValue
    value: 0.128
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.939
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.798
  additional property: Liveness
    type: PropertyValue
    value: 0.16
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.066
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.753
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

String Quintet in F Minor: I. Allegro con brio
type: MusicRecording
duration: PT10M42S
duration ms: 642466
explicit: false
by artist: Alexander Borodin
by artist: Alexander Gotthelf
by artist: Moscow String Quartet
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905087
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:49:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f1fc554aefd93ef2be6b1e3110add47da0dc4b464f68ba6b9d79705571658b5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960225
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960225
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905087
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:04:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1fc554aefd93ef2be6b1e3110add47da0dc4b464f68ba6b9d79705571658b5. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905087.
  date published: 2026-07-30T08:04:30Z
audio: String Quintet in F Minor: I. Allegro con brio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.586
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.326
  additional property: Energy
    type: PropertyValue
    value: 0.142
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.819
  additional property: Liveness
    type: PropertyValue
    value: 0.318
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.22
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.814
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sextet in D Minor: I. Allegro
type: MusicRecording
duration: PT5M26S
duration ms: 326903
explicit: false
by artist: Alexander Borodin
by artist: Alexander Detisov
by artist: Alexander Polonsky
by artist: Igor Suliga
by artist: Alexander Bobrovsky
by artist: Alexander Osokin
by artist: Alexander Gotthelf
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T05:57:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x76bf2c01b78b5ec7acc13e6d0d391653a9d1780bbe4f9fbd56089f7ec5d83004
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960216
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960216
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T06:39:12Z
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 0x76bf2c01b78b5ec7acc13e6d0d391653a9d1780bbe4f9fbd56089f7ec5d83004. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905092.
  date published: 2026-07-30T06:39:12Z
audio: Sextet in D Minor: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.313
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.791
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.268
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.898
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sextet in D Minor: Trio in G Minor for two Violins and Cello on a Russian song 'What have I done to hurt You?'
type: MusicRecording
duration: PT7M1S
duration ms: 421186
explicit: false
by artist: Alexander Borodin
by artist: Alexander Detisov
by artist: Alexander Polonsky
by artist: Alexander Osokin
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905094
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:00:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x558c36fea74334b3e305aa028225f84879fff1e674b58719785ee25f764a5b09
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905094
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
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 0x558c36fea74334b3e305aa028225f84879fff1e674b58719785ee25f764a5b09. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905094.
  date published: 2026-07-31T13:04:34Z
audio: Sextet in D Minor: Trio in G Minor for two Violins and Cello on a Russian song 'What have I done to hurt You?'
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.762
  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: 0.227
  additional property: Energy
    type: PropertyValue
    value: 0.042
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.926
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.07
  additional property: Liveness
    type: PropertyValue
    value: 0.162
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.13
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.619
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Trio in G Major for two Violins and Cello: I. Allegro
type: MusicRecording
duration: PT10M2S
duration ms: 602280
explicit: false
by artist: Alexander Borodin
by artist: Alexander Detisov
by artist: Alexander Polonsky
by artist: Alexander Osokin
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905095
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:20:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xda6cb940bae3e251ab6cfaa6cb208fc82111bbf00bc5b702cf0b9be13626db73
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/NLY330905095
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 0xda6cb940bae3e251ab6cfaa6cb208fc82111bbf00bc5b702cf0b9be13626db73. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905095.
  date published: 2026-07-31T12:24:41Z
audio: Trio in G Major for two Violins and Cello: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.064
  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: 0.342
  additional property: Energy
    type: PropertyValue
    value: 0.144
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.928
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.279
  additional property: Liveness
    type: PropertyValue
    value: 0.061
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.187
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.788
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piano Trio in D Major: I. Allegro con brio
type: MusicRecording
duration: PT6M18S
duration ms: 378693
explicit: false
by artist: Alexander Borodin
by artist: Moscow Trio
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905097
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:02:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9248046167ae7562377fbc20bcf84c744ed873ca161b09752f08489f3154092
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905097
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 0xc9248046167ae7562377fbc20bcf84c744ed873ca161b09752f08489f3154092. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905097.
  date published: 2026-07-08T03:39:04Z
audio: Piano Trio in D Major: I. Allegro con brio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.319
  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: 0.271
  additional property: Energy
    type: PropertyValue
    value: 0.229
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.407
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.367
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.459
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piano Trio in D Major: II. Romance. Andante
type: MusicRecording
duration: PT7M46S
duration ms: 466066
explicit: false
by artist: Alexander Borodin
by artist: Moscow Trio
in album: Borodin: Chamber Music
  type: MusicAlbum
  date published: 2009
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLY330905098
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:04:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x60b3562d3980ecaf265ccb6ae39cb8e1c40ec144df4cdd7c492b55d252206109
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905098
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0x60b3562d3980ecaf265ccb6ae39cb8e1c40ec144df4cdd7c492b55d252206109. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY330905098.
  date published: 2026-07-31T15:20:15Z
audio: Piano Trio in D Major: II. Romance. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.382
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.254
  additional property: Energy
    type: PropertyValue
    value: 0.102
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.59
  additional property: Liveness
    type: PropertyValue
    value: 0.067
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.063
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.455
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
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Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
type: MusicAlbum
date published: 2008-01-04
track: Mussorgsky: Pictures at an Exhibition: No. 1, Promenade I
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  duration: PT1M42S
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  by artist: Modest Mussorgsky
  by artist: Sir Simon Rattle
  by artist: Berliner Philharmoniker
  in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
    type: MusicAlbum
    date published: 2008-01-04
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: GBAYC0704323
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: https://explorer.copyrightchains.com/tx/0xa26ca8ace892304130a278913cc6814037b04375a67386955db3bbc16f2490da
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704323
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0xa26ca8ace892304130a278913cc6814037b04375a67386955db3bbc16f2490da. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704323.
    date published: 2026-07-02T03:55:08Z
  audio: Mussorgsky: Pictures at an Exhibition: No. 1, Promenade I
    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
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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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track: Mussorgsky: Pictures at an Exhibition: No. 2, Gnomus
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  by artist: Maurice Ravel
  by artist: Modest Mussorgsky
  by artist: Sir Simon Rattle
  by artist: Berliner Philharmoniker
  in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
    type: MusicAlbum
    date published: 2008-01-04
  genre: classical
  genre: impressionism
  genre: neoclassicism
  genre: post-romantic-era
  isrc code: GBAYC0704324
  additional property: CopyrightID
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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/GBAYC0704324
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T11:35:32Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe917d24dc9b64ba9b2f5dc9495d4df50447fab2b8307de27afc4d19033e44701. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704324.
    date published: 2026-07-22T11:35:32Z
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    type: AudioObject
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    additional property: Danceability
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    additional property: Loudness (dB)
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track: Mussorgsky: Pictures at an Exhibition: No. 3, Promenade II (Moderato commodo assai e con delicatezza)
  type: MusicRecording
  duration: PT1M1S
  duration ms: 61333
  explicit: false
  by artist: Modest Mussorgsky
  by artist: Sir Simon Rattle
  by artist: Berliner Philharmoniker
  in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
    type: MusicAlbum
    date published: 2008-01-04
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: GBAYC0704325
  additional property: CopyrightID
  additional property: CopyrightStatus
  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: Mussorgsky: Pictures at an Exhibition: No. 3, Promenade II (Moderato commodo assai e con delicatezza)
track: Mussorgsky: Pictures at an Exhibition: No. 4, Il Vecchio Castello
track: Mussorgsky: Pictures at an Exhibition: No. 5, Promenade III (Moderato non tanto e pesamente)
track: Mussorgsky: Pictures at an Exhibition: No. 6, Tuileries (Dispute d'enfants après jeux)
track: Mussorgsky: Pictures at an Exhibition: No. 7, Bydlo
track: Mussorgsky: Pictures at an Exhibition: No. 8, Promenade IV (Tranquillo)
track: Mussorgsky: Pictures at an Exhibition: No. 9, Ballet of the Unhatched Chicks
track: Mussorgsky: Pictures at an Exhibition: No. 10, Samuel Goldenberg und Schmuyle - Promenade V
track: Mussorgsky: Pictures at an Exhibition: No. 11, Limoges, le marché (La grande nouvelle)
track: Mussorgsky: Pictures at an Exhibition: No. 12, Catacombae (Sepulcrum romanum)
track: Mussorgsky: Pictures at an Exhibition: No. 13, Cum mortuis in lingua mortua
track: Mussorgsky: Pictures at an Exhibition: No. 14, The Hut on Fowl's Legs (Baba-Yaga)
track: Mussorgsky / Orch. Ravel: Pictures at an Exhibition: XI. The Knight's Gate in the Old Capital of Kiev
track: Borodin: Symphony No. 2 in B Minor: I. Allegro moderato
track: Borodin: Symphony No. 2 in B Minor: II. Scherzo. Molto vivo - Trio. Allegretto
track: Borodin: Symphony No. 2 in B Minor: III. Andante
track: Borodin: Prince Igor, Act 2: Polovtsian Dances (Instrumental Version)
track: Mussorgsky: Khovanshchina, Act 1: No. 1, Prelude (Dawn over the Moscow River)

CopyrightID
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CopyrightStatus
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value: registered

CopyrightRegisteredAt
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CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xca891fddffb794d69bdf9bdff6bb0376cee1f66aaaf8e7d62224fad6b29d173a

OTSHash
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OTSBitcoinBlock
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value: 956889

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956889

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704325

OTSTimestamp
type: PropertyValue
value: 2026-07-06T06:56:49Z

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 0xca891fddffb794d69bdf9bdff6bb0376cee1f66aaaf8e7d62224fad6b29d173a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704325.
date published: 2026-07-06T06:56:49Z

Mussorgsky: Pictures at an Exhibition: No. 3, Promenade II (Moderato commodo assai e con delicatezza)
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
  type: PropertyValue
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additional property: Danceability
  type: PropertyValue
  value: 0.167
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)
  type: PropertyValue
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additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
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Mussorgsky: Pictures at an Exhibition: No. 4, Il Vecchio Castello
type: MusicRecording
duration: PT4M38S
duration ms: 278466
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704326
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T20:36:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb5ca4420086c2d7b295874c02c422db04a97506384e4388b408fb02335c3370
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704326
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0xbb5ca4420086c2d7b295874c02c422db04a97506384e4388b408fb02335c3370. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704326.
  date published: 2026-07-02T03:55:08Z
audio: Mussorgsky: Pictures at an Exhibition: No. 4, Il Vecchio Castello
  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
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -38.346
  additional property: Key Name
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Mussorgsky: Pictures at an Exhibition: No. 5, Promenade III (Moderato non tanto e pesamente)
type: MusicRecording
duration: PT0M34S
duration ms: 34026
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704327
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T19:41:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x21c22e099870a8e700c0c0a70f5f3a72a6b772607ef954eb9c729de2d6b25122
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/GBAYC0704327
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:13:37Z
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 0x21c22e099870a8e700c0c0a70f5f3a72a6b772607ef954eb9c729de2d6b25122. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704327.
  date published: 2026-07-29T21:13:37Z
audio: Mussorgsky: Pictures at an Exhibition: No. 5, Promenade III (Moderato non tanto e pesamente)
  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
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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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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Mussorgsky: Pictures at an Exhibition: No. 6, Tuileries (Dispute d'enfants après jeux)
type: MusicRecording
duration: PT1M9S
duration ms: 69253
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704328
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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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/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704328
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 0xf27d611629bca0bd94e210789ca1bdd467fc9d2a68cdc82ed838f6e552701d7a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704328.
  date published: 2026-07-06T06:56:49Z
audio: Mussorgsky: Pictures at an Exhibition: No. 6, Tuileries (Dispute d'enfants après jeux)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Liveness
    type: PropertyValue
    value: 0.084
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.102
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.764
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mussorgsky: Pictures at an Exhibition: No. 7, Bydlo
type: MusicRecording
duration: PT2M52S
duration ms: 172653
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704329
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T12:18:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb03291c327ad89109f091c10f522522114475f85450d804749f8eb86dd683da9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960106
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960106
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704329
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T12:41:21Z
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 0xb03291c327ad89109f091c10f522522114475f85450d804749f8eb86dd683da9. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704329.
  date published: 2026-07-29T12:41:21Z
audio: Mussorgsky: Pictures at an Exhibition: No. 7, Bydlo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.514
  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: 0.2
  additional property: Energy
    type: PropertyValue
    value: 0.042
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.908
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.957
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.063
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.152
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mussorgsky: Pictures at an Exhibition: No. 8, Promenade IV (Tranquillo)
type: MusicRecording
duration: PT0M52S
duration ms: 52586
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704330
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T10:52:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe2eb3438b87f2d37fdda02645c96440cebe4a4f6396a6997178f250fd5829e0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960095
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960095
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704330
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:07:37Z
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 0xfe2eb3438b87f2d37fdda02645c96440cebe4a4f6396a6997178f250fd5829e0. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704330.
  date published: 2026-07-29T11:07:37Z
audio: Mussorgsky: Pictures at an Exhibition: No. 8, Promenade IV (Tranquillo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 96.95
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.163
  additional property: Energy
    type: PropertyValue
    value: 0.04
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.897
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.901
  additional property: Liveness
    type: PropertyValue
    value: 0.052
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.335
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mussorgsky: Pictures at an Exhibition: No. 9, Ballet of the Unhatched Chicks
type: MusicRecording
duration: PT1M12S
duration ms: 72226
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704331
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T23:44:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x08f94971b78c7943bdd21794f13a968851fab85322d6ec2008080f2ba54d5bde
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704331
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x08f94971b78c7943bdd21794f13a968851fab85322d6ec2008080f2ba54d5bde. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704331.
  date published: 2026-07-02T03:30:09Z
audio: Mussorgsky: Pictures at an Exhibition: No. 9, Ballet of the Unhatched Chicks
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.389
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.699
  additional property: Energy
    type: PropertyValue
    value: 0.235
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.883
  additional property: Liveness
    type: PropertyValue
    value: 0.233
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.687
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.84
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mussorgsky: Pictures at an Exhibition: No. 10, Samuel Goldenberg und Schmuyle - Promenade V
type: MusicRecording
duration: PT2M28S
duration ms: 148746
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704332
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T18:47:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9cf483267ecec2f488796244fd3debbf244b4ffa637558276deaf9fea307e2e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704332
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 0x9cf483267ecec2f488796244fd3debbf244b4ffa637558276deaf9fea307e2e1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704332.
  date published: 2026-07-29T19:35:34Z
audio: Mussorgsky: Pictures at an Exhibition: No. 10, Samuel Goldenberg und Schmuyle - Promenade V
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 88.567
  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: 0.241
  additional property: Energy
    type: PropertyValue
    value: 0.044
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.882
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.937
  additional property: Liveness
    type: PropertyValue
    value: 0.55
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.559
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mussorgsky: Pictures at an Exhibition: No. 11, Limoges, le marché (La grande nouvelle)
type: MusicRecording
duration: PT1M20S
duration ms: 80760
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704333
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T16:49:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2281d3f112fbc750bba830701ab3d68f0d94bc3b2364053146a726f1f6a956ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957011
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957011
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704333
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T08:25:35Z
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 0x2281d3f112fbc750bba830701ab3d68f0d94bc3b2364053146a726f1f6a956ff. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704333.
  date published: 2026-07-07T08:25:35Z
audio: Mussorgsky: Pictures at an Exhibition: No. 11, Limoges, le marché (La grande nouvelle)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.517
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.394
  additional property: Energy
    type: PropertyValue
    value: 0.237
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.972
  additional property: Liveness
    type: PropertyValue
    value: 0.729
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.559
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.741
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mussorgsky: Pictures at an Exhibition: No. 12, Catacombae (Sepulcrum romanum)
type: MusicRecording
duration: PT2M6S
duration ms: 126986
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704334
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T13:01:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a40ea2dc492deb80d173a32a94de71d908e77ad0127d6b81506bafa937bfc51
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704334
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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 0x5a40ea2dc492deb80d173a32a94de71d908e77ad0127d6b81506bafa937bfc51. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704334.
  date published: 2026-07-07T18:39:05Z
audio: Mussorgsky: Pictures at an Exhibition: No. 12, Catacombae (Sepulcrum romanum)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.763
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.174
  additional property: Energy
    type: PropertyValue
    value: 0.002
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.588
  additional property: Liveness
    type: PropertyValue
    value: 0.165
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.035
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.833
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mussorgsky: Pictures at an Exhibition: No. 13, Cum mortuis in lingua mortua
type: MusicRecording
duration: PT2M15S
duration ms: 135826
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704335
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:45:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6296441761d02cfb179e652d9afac8d1c6ae3011c3f3ed656593edc9be7fab2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704335
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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 0xe6296441761d02cfb179e652d9afac8d1c6ae3011c3f3ed656593edc9be7fab2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704335.
  date published: 2026-07-07T18:39:05Z
audio: Mussorgsky: Pictures at an Exhibition: No. 13, Cum mortuis in lingua mortua
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.425
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.131
  additional property: Energy
    type: PropertyValue
    value: 0.002
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.936
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.844
  additional property: Liveness
    type: PropertyValue
    value: 0.248
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.033
  additional property: Loudness (dB)
    type: PropertyValue
    value: -44.344
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mussorgsky: Pictures at an Exhibition: No. 14, The Hut on Fowl's Legs (Baba-Yaga)
type: MusicRecording
duration: PT3M25S
duration ms: 205573
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704336
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T03:54:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82bced18d5d04c9b5dc6ba43cd319a578147131866fafda17587923523ddfac0
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/GBAYC0704336
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 0x82bced18d5d04c9b5dc6ba43cd319a578147131866fafda17587923523ddfac0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704336.
  date published: 2026-07-06T06:56:49Z
audio: Mussorgsky: Pictures at an Exhibition: No. 14, The Hut on Fowl's Legs (Baba-Yaga)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.32
  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: 0.297
  additional property: Energy
    type: PropertyValue
    value: 0.144
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.903
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.916
  additional property: Liveness
    type: PropertyValue
    value: 0.688
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.321
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.666
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mussorgsky / Orch. Ravel: Pictures at an Exhibition: XI. The Knight's Gate in the Old Capital of Kiev
type: MusicRecording
duration: PT6M0S
duration ms: 360826
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704337
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T16:49:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6286b7703366b0dc04da678d2e651e92484a1f464acd210a33c1cbffc4895d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704337
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0xe6286b7703366b0dc04da678d2e651e92484a1f464acd210a33c1cbffc4895d8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704337.
  date published: 2026-07-02T03:55:08Z
audio: Mussorgsky / Orch. Ravel: Pictures at an Exhibition: XI. The Knight's Gate in the Old Capital of Kiev
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 151.121
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.17
  additional property: Energy
    type: PropertyValue
    value: 0.147
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.88
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.789
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.136
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.205
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Borodin: Symphony No. 2 in B Minor: I. Allegro moderato
type: MusicRecording
duration: PT7M55S
duration ms: 475426
explicit: false
by artist: Alexander Borodin
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704341
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T01:27:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa2a80fba2790342936a5a25a0e1fcd13578ac2e1a7dc0f313dd907a8b19a600e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960187
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960187
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704341
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:34:28Z
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 0xa2a80fba2790342936a5a25a0e1fcd13578ac2e1a7dc0f313dd907a8b19a600e. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704341.
  date published: 2026-07-30T01:34:28Z
audio: Borodin: Symphony No. 2 in B Minor: I. Allegro moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.283
  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: 0.339
  additional property: Energy
    type: PropertyValue
    value: 0.132
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.944
  additional property: Liveness
    type: PropertyValue
    value: 0.203
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.115
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.477
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Borodin: Symphony No. 2 in B Minor: II. Scherzo. Molto vivo - Trio. Allegretto
type: MusicRecording
duration: PT5M23S
duration ms: 323640
explicit: false
by artist: Alexander Borodin
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704342
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T20:01:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba48431367363bbdfa4ce33dcfe5955addbe36f2558247497932f309f5613e6f
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/GBAYC0704342
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 0xba48431367363bbdfa4ce33dcfe5955addbe36f2558247497932f309f5613e6f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704342.
  date published: 2026-07-08T03:20:19Z
audio: Borodin: Symphony No. 2 in B Minor: II. Scherzo. Molto vivo - Trio. Allegretto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.361
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.273
  additional property: Energy
    type: PropertyValue
    value: 0.063
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.867
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.1
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.669
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Borodin: Symphony No. 2 in B Minor: III. Andante
type: MusicRecording
duration: PT8M26S
duration ms: 506600
explicit: false
by artist: Alexander Borodin
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704343
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:36:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3c30b97e9d6885f66ac9b40bc383c15aa8a662035748c86bd5592ec0fa8d6f3
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/GBAYC0704343
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 0xd3c30b97e9d6885f66ac9b40bc383c15aa8a662035748c86bd5592ec0fa8d6f3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704343.
  date published: 2026-07-08T03:20:19Z
audio: Borodin: Symphony No. 2 in B Minor: III. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.291
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.169
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.941
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.841
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.035
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.42
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Borodin: Prince Igor, Act 2: Polovtsian Dances (Instrumental Version)
type: MusicRecording
duration: PT3M57S
duration ms: 237746
explicit: false
by artist: Alexander Borodin
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: Mussorgsky: Pictures at an Exhibition - Borodin: Symphony No. 2 & Polovtsian Dances
  type: MusicAlbum
  date published: 2008-01-04
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704345
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37ad199607c625a641fb5ea8619b657b6b935ee96b1b58aac26e55996a5f7a80
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704345
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 0x37ad199607c625a641fb5ea8619b657b6b935ee96b1b58aac26e55996a5f7a80. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704345.
  date published: 2026-07-29T19:35:34Z
audio: Borodin: Prince Igor, Act 2: Polovtsian Dances (Instrumental Version)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.591
  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: 0.116
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
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Mussorgsky: Khovanshchina, Act 1: No. 1, Prelude (Dawn over the Moscow River)
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duration ms: 346833
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by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
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genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe963239487361b5d15a61f4ac63db8993cea6681f9658f04560622571d62baa. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0704346.
  date published: 2026-07-31T08:26:41Z
audio: Mussorgsky: Khovanshchina, Act 1: No. 1, Prelude (Dawn over the Moscow River)
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Borodin: Prince Igor (Highlights)
type: MusicAlbum
date published: 2005-08-01
track: Prince Igor (Knyaz Igor): Overture
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  by artist: Ukraine National Radio Symphony Orchestra
  by artist: Theodore Kuchar
  in album: Borodin: Prince Igor (Highlights)
    type: MusicAlbum
    date published: 2005-08-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
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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: 2026-07-31T15:20:15Z
  audio: Prince Igor (Knyaz Igor): Overture
    type: AudioObject
    additional property: Tempo (BPM)
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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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track: Prince Igor: Polovtsian Dances (Version for Chorus)
  type: MusicRecording
  duration: PT10M42S
  duration ms: 642573
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  by artist: Kiev Chamber Choir
  by artist: Ukraine National Radio Symphony Orchestra
  by artist: Theodore Kuchar
  in album: Borodin: Prince Igor (Highlights)
    type: MusicAlbum
    date published: 2005-08-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
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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: 2026-08-01T00:10:46Z
  audio: Prince Igor: Polovtsian Dances (Version for Chorus)
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    additional property: Valence (Positivity)
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track: In the Steppes of Central Asia
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  by artist: Alexander Borodin
  by artist: Ukraine National Radio Symphony Orchestra
  by artist: Theodore Kuchar
  in album: Borodin: Prince Igor (Highlights)
    type: MusicAlbum
    date published: 2005-08-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: In the Steppes of Central Asia

CopyrightRegisteredAt
type: PropertyValue
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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0xa66ba62ee96214d2640216da851e0d74c2a55998ab4ffceb8b668a60b6f52fbf

OTSHash
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OTSBitcoinBlock
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value: 960397

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960397

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190438409

OTSTimestamp
type: PropertyValue
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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 0xa66ba62ee96214d2640216da851e0d74c2a55998ab4ffceb8b668a60b6f52fbf. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190438409.
date published: 2026-07-31T12:24:41Z

In the Steppes of Central Asia
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Borodin: Prince Igor (Ivanov, Smolenskaya, Melik-Pashayev) (1951)
type: MusicAlbum
date published: 2005-05-01

ボロディン：弦楽四重奏曲集 (アルバム)
type: MusicAlbum
date published: 2005-04-25

Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
type: MusicAlbum
date published: 2004-01-01
track: Symphony No. 2 in B Minor: I. Allegro
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  duration: PT6M52S
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  by artist: Stuttgart Radio Symphony Orchestra
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    type: MusicAlbum
    date published: 2004-01-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: DEA557307098
  additional property: CopyrightID
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0x87642607794462c0e6b0463222e0568ee34eaa07628e9f219798b20e57a7cd57. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA557307098.
    date published: 2026-07-02T03:30:09Z
  audio: Symphony No. 2 in B Minor: I. Allegro
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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track: Symphony No. 2 in B Minor: II. Scherzo: Prestissimo. Trio: Allegretto
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  by artist: Alexander Borodin
  by artist: Stuttgart Radio Symphony Orchestra
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    type: MusicAlbum
    date published: 2004-01-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
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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
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2d8374020957e75ef4988516d5a69e407793bcfbe7db4014f84a1b6741fb5c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA557307099.
    date published: 2026-07-02T03:55:08Z
  audio: Symphony No. 2 in B Minor: II. Scherzo: Prestissimo. Trio: Allegretto
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track: Symphony No. 2 in B Minor: III. Andante
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  by artist: Stuttgart Radio Symphony Orchestra
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    date published: 2004-01-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
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  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: Symphony No. 2 in B Minor: III. Andante
track: Symphony No. 2 in B Minor: IV. Finale: allegro
track: Symphony No. 2 in B Minor: II. Scherzo: Pretissimo. Trio: Allegretto
track: Symphony No. 2 in B Minor: IV. Finale: Allegro

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-25T23:35:10+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x6908199a10b0ede08fc3e649337d4cbb040dec2bb7b6cfe0920dba55777bf993

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA557307100

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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 0x6908199a10b0ede08fc3e649337d4cbb040dec2bb7b6cfe0920dba55777bf993. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA557307100.
date published: 2026-07-02T03:55:08Z

Symphony No. 2 in B Minor: III. Andante
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 101.936
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.07
additional property: Energy
  type: PropertyValue
  value: 0.052
additional property: Speechiness
  type: PropertyValue
  value: 0.047
additional property: Acousticness
  type: PropertyValue
  value: 0.98
additional property: Instrumentalness
  type: PropertyValue
  value: 0.861
additional property: Liveness
  type: PropertyValue
  value: 0.11
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.036
additional property: Loudness (dB)
  type: PropertyValue
  value: -24.178
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

Symphony No. 2 in B Minor: IV. Finale: allegro
type: MusicRecording
duration: PT6M3S
duration ms: 363053
explicit: false
by artist: Alexander Borodin
by artist: Stuttgart Radio Symphony Orchestra
by artist: Carlos Kleiber
in album: Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
  type: MusicAlbum
  date published: 2004-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: DEA557307101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:25:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1921de6c1a86c61a0a305357244956ce1ea72ab5c9820a250867aeb352e746dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA557307101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x1921de6c1a86c61a0a305357244956ce1ea72ab5c9820a250867aeb352e746dd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA557307101.
  date published: 2026-07-02T03:55:08Z
audio: Symphony No. 2 in B Minor: IV. Finale: allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 150.713
  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: 0.304
  additional property: Energy
    type: PropertyValue
    value: 0.336
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.817
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.118
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.768
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor: I. Allegro
type: MusicRecording
duration: PT7M5S
duration ms: 425146
explicit: false
by artist: Alexander Borodin
by artist: NBC Symphony Orchestra
by artist: Erich Kleiber
in album: Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
  type: MusicAlbum
  date published: 2004-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: DEA557314879
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T09:10:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x691bb338c85d8a673f1b92999663a4a9165a133dd17c8f83e6eaf1600c7dab6f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960236
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960236
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA557314879
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:37:10Z
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 0x691bb338c85d8a673f1b92999663a4a9165a133dd17c8f83e6eaf1600c7dab6f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA557314879.
  date published: 2026-07-30T09:37:10Z
audio: Symphony No. 2 in B Minor: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.289
  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: 0.345
  additional property: Energy
    type: PropertyValue
    value: 0.139
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.919
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.903
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.166
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.201
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor: II. Scherzo: Pretissimo. Trio: Allegretto
type: MusicRecording
duration: PT4M51S
duration ms: 291706
explicit: false
by artist: Alexander Borodin
by artist: NBC Symphony Orchestra
by artist: Erich Kleiber
in album: Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
  type: MusicAlbum
  date published: 2004-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: DEA557314880
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:33:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc01703d39640c3be91c571632e4d08daf7f05ebf7241b35ad04d07a7ab3fa3f8
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/DEA557314880
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 0xc01703d39640c3be91c571632e4d08daf7f05ebf7241b35ad04d07a7ab3fa3f8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA557314880.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B Minor: II. Scherzo: Pretissimo. Trio: Allegretto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.963
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.337
  additional property: Energy
    type: PropertyValue
    value: 0.054
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.843
  additional property: Liveness
    type: PropertyValue
    value: 0.252
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.205
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.782
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B Minor: IV. Finale: Allegro
type: MusicRecording
duration: PT6M6S
duration ms: 366893
explicit: false
by artist: Alexander Borodin
by artist: NBC Symphony Orchestra
by artist: Erich Kleiber
in album: Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
  type: MusicAlbum
  date published: 2004-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: DEA557314882
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:27:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0da5fa03a975c0507edaa2a6771e1c1d613eba9193182b7c8a71bb6ed4ce0f48
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/DEA557314882
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 0x0da5fa03a975c0507edaa2a6771e1c1d613eba9193182b7c8a71bb6ed4ce0f48. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA557314882.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B Minor: IV. Finale: Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.013
  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: 0.384
  additional property: Energy
    type: PropertyValue
    value: 0.161
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.878
  additional property: Liveness
    type: PropertyValue
    value: 0.67
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.21
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.194
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Borodin: String Quartets; String Sextet
type: MusicAlbum
date published: 2003-01-01
track: String Quartet No. 1 in A Major: I. Moderato. Allegro
  type: MusicRecording
  duration: PT13M11S
  duration ms: 791862
  explicit: false
  by artist: Alexander Borodin
  by artist: Lindsay String Quartet
  in album: Borodin: String Quartets; String Sextet
    type: MusicAlbum
    date published: 2003-01-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: GBBJY0001708
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:08:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc7168023fd7d5ce9ccd49ad9137b9f34b28b35309dac9fbcdf1768267d027d78
  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/GBBJY0001708
  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 0xc7168023fd7d5ce9ccd49ad9137b9f34b28b35309dac9fbcdf1768267d027d78. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001708.
    date published: 2026-07-08T03:20:19Z
  audio: String Quartet No. 1 in A Major: I. Moderato. Allegro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.638
    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: 0.194
    additional property: Energy
      type: PropertyValue
      value: 0.073
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.979
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.801
    additional property: Liveness
      type: PropertyValue
      value: 0.101
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.127
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.544
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: String Quartet No. 1 in A Major, Op. 26: III. Scherzo (Prestissimo)
  type: MusicRecording
  duration: PT5M36S
  duration ms: 336213
  explicit: false
  by artist: Alexander Borodin
  by artist: Lindsay String Quartet
  in album: Borodin: String Quartets; String Sextet
    type: MusicAlbum
    date published: 2003-01-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: GBBJY0001710
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T00:36:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9bd227358e6480562dd58959b3683e2afaedba58b69fbc63653f90837a514854
  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/GBBJY0001710
  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
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    date published: 2026-07-08T03:20:19Z
  audio: String Quartet No. 1 in A Major, Op. 26: III. Scherzo (Prestissimo)
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Acousticness
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track: String Quartet No. 1 in A Major, Op. 26: IV. Andante - Allegro risoluto
  type: MusicRecording
  duration: PT10M1S
  duration ms: 601746
  explicit: false
  by artist: Alexander Borodin
  by artist: Lindsay String Quartet
  in album: Borodin: String Quartets; String Sextet
    type: MusicAlbum
    date published: 2003-01-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: russian-romanticism
  isrc code: GBBJY0001711
  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: String Quartet No. 1 in A Major, Op. 26: IV. Andante - Allegro risoluto
track: String Quartet No. 2 in D Major: I. Allegro moderato
track: String Quartet No. 2 in D Major: II. Scherzo (Allegro)
track: String Quartet No. 2 in D Major: III. Notturno (Andante)
track: String Sextet in D Minor: I. Allegro
track: String Sextet in D Minor: II. Andante

CopyrightRegisteredAt
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value: 2026-07-29T23:58:50+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xedec28ffa558f69725731c63bc9668a562e9549217412005c99238feb08c8acc

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960173

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960173

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001711

OTSTimestamp
type: PropertyValue
value: 2026-07-30T00:11:40Z

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 0xedec28ffa558f69725731c63bc9668a562e9549217412005c99238feb08c8acc. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001711.
date published: 2026-07-30T00:11:40Z

String Quartet No. 1 in A Major, Op. 26: IV. Andante - Allegro risoluto
type: AudioObject
additional property: Tempo (BPM)
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  value: 129.172
additional property: Musical Key
  type: PropertyValue
  value: 0
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
  type: PropertyValue
  value: 0.983
additional property: Instrumentalness
  type: PropertyValue
  value: 0.777
additional property: Liveness
  type: PropertyValue
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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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String Quartet No. 2 in D Major: I. Allegro moderato
type: MusicRecording
duration: PT8M28S
duration ms: 508586
explicit: false
by artist: Alexander Borodin
by artist: Lindsay String Quartet
in album: Borodin: String Quartets; String Sextet
  type: MusicAlbum
  date published: 2003-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBBJY0001712
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:56:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47f9298882f9a48529779e8b82a877bd2afcb4702e1d21105350c61c5d42bc43
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 960389
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960389
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001712
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:20:10Z
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 0x47f9298882f9a48529779e8b82a877bd2afcb4702e1d21105350c61c5d42bc43. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001712.
  date published: 2026-07-31T10:20:10Z
audio: String Quartet No. 2 in D Major: I. Allegro moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.879
  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
    value: 0.191
  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)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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String Quartet No. 2 in D Major: II. Scherzo (Allegro)
type: MusicRecording
duration: PT4M53S
duration ms: 293893
explicit: false
by artist: Alexander Borodin
by artist: Lindsay String Quartet
in album: Borodin: String Quartets; String Sextet
  type: MusicAlbum
  date published: 2003-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBBJY0001713
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:53:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x17d19ad55fc85d4d4cf057f3119607f07b244a2297b9a51829858d606a8c508b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001713
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x17d19ad55fc85d4d4cf057f3119607f07b244a2297b9a51829858d606a8c508b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001713.
  date published: 2026-07-08T03:22:41Z
audio: String Quartet No. 2 in D Major: II. Scherzo (Allegro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.385
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.356
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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String Quartet No. 2 in D Major: III. Notturno (Andante)
type: MusicRecording
duration: PT8M28S
duration ms: 508013
explicit: false
by artist: Alexander Borodin
by artist: Lindsay String Quartet
in album: Borodin: String Quartets; String Sextet
  type: MusicAlbum
  date published: 2003-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBBJY0001714
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T05:02:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001714
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02Z
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 0x599d35e67c48dbb34182bff3ae7cbc2d6a67a63754460d4243a15b052f7b6f15. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001714.
  date published: 2026-07-31T05:17:02Z
audio: String Quartet No. 2 in D Major: III. Notturno (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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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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String Sextet in D Minor: I. Allegro
type: MusicRecording
duration: PT5M27S
duration ms: 327186
explicit: false
by artist: Alexander Borodin
by artist: Louise Williams
by artist: Raphael Wallfisch
by artist: Lindsay String Quartet
in album: Borodin: String Quartets; String Sextet
  type: MusicAlbum
  date published: 2003-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBBJY0001716
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:02:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x314f8a0d1460b795887787130043325fadd52776753265368fb7e0cf05930e0d
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/GBBJY0001716
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 0x314f8a0d1460b795887787130043325fadd52776753265368fb7e0cf05930e0d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001716.
  date published: 2026-07-08T03:20:19Z
audio: String Sextet in D Minor: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    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
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.264
  additional property: Key Name
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  additional property: Mode Name
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String Sextet in D Minor: II. Andante
type: MusicRecording
duration: PT3M26S
duration ms: 206239
explicit: false
by artist: Alexander Borodin
by artist: Louise Williams
by artist: Raphael Wallfisch
by artist: Lindsay String Quartet
in album: Borodin: String Quartets; String Sextet
  type: MusicAlbum
  date published: 2003-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBBJY0001717
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:01:53+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001717
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 0xa385ad8a5b1ad3cdf569a00401f33165078a8e1be2c1e967a3fc283f9900931a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBJY0001717.
  date published: 2026-07-08T03:20:19Z
audio: String Sextet in D Minor: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.697
  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: 0.271
  additional property: Energy
    type: PropertyValue
    value: 0.041
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.703
  additional property: Liveness
    type: PropertyValue
    value: 0.158
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.128
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.317
  additional property: Key Name
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  additional property: Mode Name
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Rimsky-Korsakov: Scheherazade
type: MusicAlbum
date published: 2001-01-01
track: Scheherazade, Op. 35: The Sea and Sinbad's Ship
  type: MusicRecording
  duration: PT10M10S
  duration ms: 610120
  explicit: false
  by artist: Nikolai Rimsky-Korsakov
  by artist: Royal Concertgebouw Orchestra
  by artist: Herman Krebbers
  by artist: Kirill Kondrashin
  in album: Rimsky-Korsakov: Scheherazade
    type: MusicAlbum
    date published: 2001-01-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: avant-garde
  genre: russian-romanticism
  isrc code: NLA507818201
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T19:55:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbef819717bd38e17430773bcbd4b01f9f7692036eedfacd5d8b8eaca8bd690fd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960144
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960144
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507818201
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T21:09:47Z
  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 0xbef819717bd38e17430773bcbd4b01f9f7692036eedfacd5d8b8eaca8bd690fd. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507818201.
    date published: 2026-07-29T21:09:47Z
  audio: Scheherazade, Op. 35: The Sea and Sinbad's Ship
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.21
    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: 0.174
    additional property: Energy
      type: PropertyValue
      value: 0.044
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.913
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.501
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.038
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.58
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Scheherazade, Op. 35: The Story of the Calender Prince
  type: MusicRecording
  duration: PT12M7S
  duration ms: 727466
  explicit: false
  by artist: Nikolai Rimsky-Korsakov
  by artist: Royal Concertgebouw Orchestra
  by artist: Herman Krebbers
  by artist: Kirill Kondrashin
  in album: Rimsky-Korsakov: Scheherazade
    type: MusicAlbum
    date published: 2001-01-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: avant-garde
  genre: russian-romanticism
  isrc code: NLA507818202
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T09:09:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb379dce2ffb19bf0f6f0546a236dfe23c08b923413cff78b5b3a6c93ad4213d7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957046
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957046
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507818202
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T14:04:01Z
  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 0xb379dce2ffb19bf0f6f0546a236dfe23c08b923413cff78b5b3a6c93ad4213d7. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507818202.
    date published: 2026-07-07T14:04:01Z
  audio: Scheherazade, Op. 35: The Story of the Calender Prince
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.188
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.248
    additional property: Energy
      type: PropertyValue
      value: 0.062
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.95
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.725
    additional property: Liveness
      type: PropertyValue
      value: 0.341
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.046
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.37
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Scheherazade, Op. 35: The Young Prince and the Young Princess
  type: MusicRecording
  duration: PT9M37S
  duration ms: 577093
  explicit: false
  by artist: Nikolai Rimsky-Korsakov
  by artist: Royal Concertgebouw Orchestra
  by artist: Herman Krebbers
  by artist: Kirill Kondrashin
  in album: Rimsky-Korsakov: Scheherazade
    type: MusicAlbum
    date published: 2001-01-01
  genre: classical
  genre: late-romantic-era
  genre: early-modern-classical
  genre: avant-garde
  genre: russian-romanticism
  isrc code: NLA507818203
  additional property: CopyrightID
  additional property: CopyrightStatus
  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: Scheherazade, Op. 35: The Young Prince and the Young Princess
track: Scheherazade, Op. 35: Festival at Bagdad - The Sea - Ship Breaks upon a Cliff Surmounted by a Bronze Horseman
track: Symphony No. 2 in B minor: 1. Allegro
track: Symphony No. 2 in B minor: 2. Scherzo (Prestissimo - Allegretto - Tempo I)
track: Symphony No. 2 in B minor: 3. Andante
track: Symphony No. 2 in B minor: 4. Finale (Allegro)

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-29T16:54:28+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x8596d9e40dc395bb8b5e197b452375138459de8800dd52338832ca6ebcbe70b4

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960138

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960138

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507818203

OTSTimestamp
type: PropertyValue
value: 2026-07-29T19:35:34Z

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 0x8596d9e40dc395bb8b5e197b452375138459de8800dd52338832ca6ebcbe70b4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507818203.
date published: 2026-07-29T19:35:34Z

Scheherazade, Op. 35: The Young Prince and the Young Princess
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 115.591
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: 0.157
additional property: Energy
  type: PropertyValue
  value: 0.027
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.965
additional property: Instrumentalness
  type: PropertyValue
  value: 0.624
additional property: Liveness
  type: PropertyValue
  value: 0.078
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.04
additional property: Loudness (dB)
  type: PropertyValue
  value: -32.433
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Scheherazade, Op. 35: Festival at Bagdad - The Sea - Ship Breaks upon a Cliff Surmounted by a Bronze Horseman
type: MusicRecording
duration: PT12M20S
duration ms: 740426
explicit: false
by artist: Nikolai Rimsky-Korsakov
by artist: Royal Concertgebouw Orchestra
by artist: Herman Krebbers
by artist: Kirill Kondrashin
in album: Rimsky-Korsakov: Scheherazade
  type: MusicAlbum
  date published: 2001-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: avant-garde
genre: russian-romanticism
isrc code: NLA507818204
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T19:13:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x970f37b723836f9f173b7b9ad794aaba7d9a66ea9f15b1a4d7191b27eb6945bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507818204
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 0x970f37b723836f9f173b7b9ad794aaba7d9a66ea9f15b1a4d7191b27eb6945bc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507818204.
  date published: 2026-07-29T19:35:34Z
audio: Scheherazade, Op. 35: Festival at Bagdad - The Sea - Ship Breaks upon a Cliff Surmounted by a Bronze Horseman
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.216
  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: 0.196
  additional property: Energy
    type: PropertyValue
    value: 0.235
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.908
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.725
  additional property: Liveness
    type: PropertyValue
    value: 0.191
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.067
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.358
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B minor: 1. Allegro
type: MusicRecording
duration: PT7M52S
duration ms: 472573
explicit: false
by artist: Alexander Borodin
by artist: Royal Concertgebouw Orchestra
by artist: Kirill Kondrashin
in album: Rimsky-Korsakov: Scheherazade
  type: MusicAlbum
  date published: 2001-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLA508327410
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:17:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x900a491413efa9da6a0e96b4354bee9aae9d199052525075301f6bd62f40054a
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/NLA508327410
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 0x900a491413efa9da6a0e96b4354bee9aae9d199052525075301f6bd62f40054a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508327410.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in B minor: 1. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.388
  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: 0.31
  additional property: Energy
    type: PropertyValue
    value: 0.173
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.933
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.918
  additional property: Liveness
    type: PropertyValue
    value: 0.641
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.097
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.39
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B minor: 2. Scherzo (Prestissimo - Allegretto - Tempo I)
type: MusicRecording
duration: PT5M25S
duration ms: 325826
explicit: false
by artist: Alexander Borodin
by artist: Royal Concertgebouw Orchestra
by artist: Kirill Kondrashin
in album: Rimsky-Korsakov: Scheherazade
  type: MusicAlbum
  date published: 2001-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLA508327411
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T18:47:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe493ab40462938095de2b577111298e24981d1b7bd40c479b565d5b72fa102e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960296
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960296
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508327411
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T19:11:09Z
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 0xbe493ab40462938095de2b577111298e24981d1b7bd40c479b565d5b72fa102e. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508327411.
  date published: 2026-07-30T19:11:09Z
audio: Symphony No. 2 in B minor: 2. Scherzo (Prestissimo - Allegretto - Tempo I)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.771
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.215
  additional property: Energy
    type: PropertyValue
    value: 0.096
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.914
  additional property: Liveness
    type: PropertyValue
    value: 0.145
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.135
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.323
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 2 in B minor: 3. Andante
type: MusicRecording
duration: PT7M23S
duration ms: 443293
explicit: false
by artist: Alexander Borodin
by artist: Royal Concertgebouw Orchestra
by artist: Kirill Kondrashin
in album: Rimsky-Korsakov: Scheherazade
  type: MusicAlbum
  date published: 2001-01-01
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: NLA508327412
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:20:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc52e581ab3ebbca47e9758cd6f3b2ad1363043576ec88da1d7da3d26c013722
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/NLA508327412
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: Royal Concertgebouw Orchestra
by artist: Kirill Kondrashin
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genre: classical
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genre: early-modern-classical
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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: 2026-07-31T00:26:26Z
audio: Symphony No. 2 in B minor: 4. Finale (Allegro)
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Borodin, A.P.: String Quartets Nos. 1 and 2
type: MusicAlbum
date published: 2001-01-01

Borodin: Symphonies Nos. 1 and 3 / Overture To Prince Igor
type: MusicAlbum
date published: 2000-01-01

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type: MusicAlbum
date published: 2000
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  by artist: BBC Symphony Chorus
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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: 2026-07-02T03:55:08Z
  audio: Requiem
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    additional property: Mode (Major/Minor)
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  by artist: BBC Symphony Chorus
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  genre: late-romantic-era
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  additional property: OTSVerificationAPI
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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: 2026-08-01T03:13:03Z
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  genre: classical
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Polovtsian Dances and Suite from Prince Igor: iii. Dance of the Polovtsian Maidens
track: Polovtsian Dances and Suite from Prince Igor: v. Polovtsian Dances
track: Nocturne from String Quartet No. 2 for Violin and Orchestra

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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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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 0x29f0f00320c213dd0540ffcd045e51cf85b67b7a0d06c8d976ebfee110f72865. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBATS0002904.
date published: 2026-07-08T03:22:41Z

Polovtsian Dances and Suite from Prince Igor: iii. Dance of the Polovtsian Maidens
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additional property: Mode (Major/Minor)
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additional property: Valence (Positivity)
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Polovtsian Dances and Suite from Prince Igor: v. Polovtsian Dances
type: MusicRecording
duration: PT11M30S
duration ms: 690880
explicit: false
by artist: Alexander Borodin
by artist: Philharmonia Orchestra
by artist: BBC Symphony Chorus
by artist: Geoffrey Simon
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genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Polovtsian Dances and Suite from Prince Igor: v. Polovtsian Dances
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Nocturne from String Quartet No. 2 for Violin and Orchestra
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genre: classical
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genre: early-modern-classical
genre: russian-romanticism
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