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genre: orchestra
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subject of: OpenTimestamps Proof of Existence
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album: Sviatolsav Richter plays Russian Composers
  type: MusicAlbum
  date published: 2021-07-02
album: Beethoven: Piano Concertos Nos. 1 & 4
  type: MusicAlbum
  date published: 2020-12-11
album: Arapov: Violin Concerto & Concerto for Violin, Piano and Percussion
  type: MusicAlbum
  date published: 2017-09-01
album: Tchaikovsky, Berlioz & Prokofiev: Romeo & Juliet
  type: MusicAlbum
  date published: 2016-02-01
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  type: MusicAlbum
  date published: 2017-01-01
album: Ustvolskaya: Suites & Poems
  type: MusicAlbum
  date published: 2019-10-25
album: Mravinsky Edition, Vol. 4
  type: MusicAlbum
  date published: 2019-01-11
album: Klassik zur Hochzeit - Classical Wedding
  type: MusicAlbum
  date published: 2024-12-27
album: The Symphony Lounge, Vol. 11: Khachaturian — Highlights from Gayaneh Suites, Spartacus & Masquarade
  type: MusicAlbum
  date published: 2019-09-06
album: KONDRASHIN conducts MAHLER (Remastered 2025)
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-30T04:47:22Z
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  track: Symphony No. 6 in A minor II. Scherzo. Wuchtig (Pesante)
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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: Symphony No. 6 in A minor III. Andante moderato
  track: Symphony No. 6 in A minor IV. Finale. Allegro moderato
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album: Soviet Legends, Vol. IV (Remastered 2024)
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album: Tchaikovsky & Rimsky-Korsakov: Orchestral Works
album: Tchaikovsky: Symphonies Nos. 5 & 6 "Pathétique" (Live at Leningrad)
album: Beethoven: Symphonies Nos. 1, 3 "Eroica", 5, 6 "Pastoral" & 7 (Live at Leningrad)
album: Beethoven: Works
album: The Magic of Mravinsky, Debussy & Scriabin
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album: Bruckner: Symphonies Nos. 7 & 8
album: Tchaikovsky: Symphonies Nos. 4-6
album: Evgeny Mravinsky, Vol. 3
album: Tishchenko: Symphony No. 4, Op. 61 (Live)
album: Mravinsky Vol. 2: Tchaikovsky, Shostakovich, Berlioz & Weber
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album: Mravinsky Edition, Vol. 1
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album: Schnittke: Symphony No. 2
album: Igor Stravinsky: Petrouchka, The Fairy's Kiss

Symphony No. 6 in A minor II. Scherzo. Wuchtig (Pesante)
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Symphony No. 6 in A minor III. Andante moderato
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Symphony No. 6 in A minor IV. Finale. Allegro moderato
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T06:58:00Z
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Soviet Legends, Vol. V (Remastered 2024)
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    date published: 2026-07-30T07:48:45Z
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: Symphony No. 5 in D minor, Op. 47 II. Allegro
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  by artist: Dmitri Shostakovich
  by artist: Evgeny Mravinsky
  by artist: Leningrad Philharmonic Orchestra
  in album: Soviet Legends, Vol. V (Remastered 2024)
    type: MusicAlbum
    date published: 2024-12-15
  isrc code: ITCC56001721
  additional property: CopyrightID
  additional property: CopyrightStatus
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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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd7cca44d2f87966a848d4669baf01fda955edaac43580115dbd478ea349e95. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC56001721 — a six-check JSON result.
    date published: 2026-07-08T08:56:20Z
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track: Symphony No. 5 in D minor, Op. 47 III. Largo
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  by artist: Dmitri Shostakovich
  by artist: Evgeny Mravinsky
  by artist: Leningrad Philharmonic Orchestra
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  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Symphony No. 5 in D minor, Op. 47 III. Largo
track: Symphony No. 5 in D minor, Op. 47 IV. Allegro non troppo

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076dca6bff1a1fa43abd52088081ad8ae8d65f185993007480cace3f2389fe3f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC56001722 — a six-check JSON result.
date published: 2026-07-31T02:51:48Z

Symphony No. 5 in D minor, Op. 47 III. Largo
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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Symphony No. 5 in D minor, Op. 47 IV. Allegro non troppo
type: MusicRecording
duration: PT10M8S
duration ms: 608573
explicit: false
by artist: Dmitri Shostakovich
by artist: Evgeny Mravinsky
by artist: Leningrad Philharmonic Orchestra
in album: Soviet Legends, Vol. V (Remastered 2024)
  type: MusicAlbum
  date published: 2024-12-15
isrc code: ITCC56001723
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f09989acd5c1899b9e5e109491f1e328c824ac552383180b5971065a918de8b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC56001723 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 5 in D minor, Op. 47 IV. Allegro non troppo
  type: AudioObject
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Soviet Legends, Vol. IV (Remastered 2024)
type: MusicAlbum
date published: 2024-12-15
track: Symphony No. 6 in A minor, Tragic I. Allegro energico, ma non troppo
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  by artist: Gustav Mahler
  by artist: Kirill Kondrashin
  by artist: Leningrad Philharmonic Orchestra
  in album: Soviet Legends, Vol. IV (Remastered 2024)
    type: MusicAlbum
    date published: 2024-12-15
  genre: classical
  genre: orchestra
  genre: orchestral
  isrc code: ITCC56001716
  additional property: CopyrightID
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc80cd5b377732d0a630a895ca2d00f6e2cf8da49dc15bc2d1c56a0ff072f18. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC56001716 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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    type: AudioObject
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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: Loudness (dB)
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Music that warms the heart vol. 1 (Remastered 2017)
type: MusicAlbum
date published: 2024-10-24
track: Piano Sonata, Op. 1: I. Allegro moderato
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  by artist: Glenn Gould
  in album: Music that warms the heart vol. 1 (Remastered 2017)
    type: MusicAlbum
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  isrc code: ITCC51103784
  additional property: CopyrightID
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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 0x28c6e95739139e59fcc6ffbca0f5e68c6fd49e8713b14a8029807703c6d6d60b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51103784 — a six-check JSON result.
    date published: 2026-07-02T03:30:09Z
  audio: Piano Sonata, Op. 1: I. Allegro moderato
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Speechiness
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    additional property: Acousticness
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track: Variations for Piano, Op. 27
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  by artist: Glenn Gould
  in album: Music that warms the heart vol. 1 (Remastered 2017)
    type: MusicAlbum
    date published: 2024-10-24
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  genre: early-modern-classical
  genre: avant-garde
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cc9dfa5ef08914f49be056f0e8dfc87b669774ec575606174b315b05f9e248. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51103785 — a six-check JSON result.
    date published: 2026-07-02T03:55:08Z
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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: Valence (Positivity)
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track: Keyboard Sonata No. 3, Op. 92 No. 4: I. Allegretto piacevole, animato e flessibile - IV. Adagio
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  by artist: Glenn Gould
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  genre: contemporary-classical
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerifyInstructions
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track: Piano Concerto No. 1 in D Minor, BWV 1052: III. Allegro
track: Piano Concerto No. 2 in B-Flat Major, Op. 19: I. Allegro con brio
track: Piano Concerto No. 2 in B-Flat Major, Op. 19: II. Adagio
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date published: 2026-07-02T03:55:08Z

Keyboard Sonata No. 3, Op. 92 No. 4: I. Allegretto piacevole, animato e flessibile - IV. Adagio
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Die Kunst der Fuge, BWV 1080: Contrapunctus I - IV - II
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Goldberg Variations, BWV 988: Vars. 3 - 18 - 9 - 24 - 10 - 30
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Piano Concerto No. 1 in D Minor, BWV 1052: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Piano Concerto No. 1 in D Minor, BWV 1052: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T12:33:25Z
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Piano Concerto No. 1 in D Minor, BWV 1052: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T13:20:46Z
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Piano Concerto No. 2 in B-Flat Major, Op. 19: I. Allegro con brio
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subject of: OpenTimestamps Proof of Existence
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Historical Beethoven
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Исаак Шварц. Музыка кино 3
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Tishchenko: The Twelve
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Rachmaninov: Isle of the Dead, Symphony No. 2
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Beethoven: Works
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The Magic of Mravinsky, Debussy & Scriabin
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Leningrad Symphonies
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Bruckner: Symphonies Nos. 7 & 8
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Evgeny Mravinsky, Vol. 3
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Tishchenko: Symphony No. 4, Op. 61 (Live)
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Mravinsky Vol. 2: Tchaikovsky, Shostakovich, Berlioz & Weber
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Mravinsky, Vol. 1: The Brahms Symphonies
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Evgeny Mravinsky Edition, Vol. 2: Tchaikovsky, Mozart, Berlioz, Stravinsky & R. Strauss
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Mravinsky Edition, Vol. 1
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Alexander Glazunov: Symphonies Nos. 4 & 5, The Seasons (excerpts)
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Ludwig van Beethoven: Symphony No. 4 - Dmitri Shostakovich: Symphony No. 10
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Jean Sibelius: Symphonies Nos. 3 & 7, The Swan of Tuonela - Claude Debussy: Nocturnes Nos. 1 & 2
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Sergei Prokofiev: Symphonies Nos. 5 & 6
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Igor Stravinky: Apollon musagète, Orpheus, Ode, Fireworks, Song of the Volga Boatmen
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Mozart & Shostakovich: Violin Concertos
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date published: 2016-01-01

Schnittke: Symphony No. 2
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date published: 2015-12-01

Igor Stravinsky: Petrouchka, The Fairy's Kiss
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date published: 2015-11-01