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type: MusicGroup
genre: classical
popularity: 32
followers: 1030
additional property: CopyrightID
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: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e16e4fe0-6505-4911-b453-474c24f06bd8.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f05028f5b97ece6a5d0a926a6c9475a93f61eed7445be522dacb3fea975ab6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e16e4fe0-6505-4911-b453-474c24f06bd8.json and https://artists.proofprofile.net/proofs/artist/e16e4fe0-6505-4911-b453-474c24f06bd8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: Victor Fedotov: Tcherepnin, Rimsky-Korsakov
  type: MusicAlbum
  date published: 2002-08-27
album: Victor Fedotov Conducts
  type: MusicAlbum
  date published: 2006-02-07
  track: Walpurgis Night. Ballet music from Faust Bacchante and Bacchus
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    by artist: Victor Fedotov
    in album: Victor Fedotov Conducts
      type: MusicAlbum
      date published: 2006-02-07
    genre: classical
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    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA370544475
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7d3a45a79ecd357420b880669ae448234447751f0a35a70efa8db9edb43f51. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA370544475.
      date published: 2026-07-04T11:19:20Z
    audio: Walpurgis Night. Ballet music from Faust Bacchante and Bacchus
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      additional property: Musical Key
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        type: PropertyValue
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      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Valence (Positivity)
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album: Peter Tchaikovsky. The Swan Lake
  type: MusicAlbum
  date published: 2006-02-07
  track: The Swan Lake ACT II Grand Pas de deux. Adagio
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    duration: PT3M38S
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    explicit: false
    by artist: Victor Fedotov
    in album: Peter Tchaikovsky. The Swan Lake
      type: MusicAlbum
      date published: 2006-02-07
    genre: classical
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7635ef6358f5a10fd76fd2429547d024a4c9ed4b43979c1314b3d0ab7ea89ebc. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USA370544409.
      date published: 2026-07-18T08:19:09Z
    audio: The Swan Lake ACT II Grand Pas de deux. Adagio
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      additional property: Danceability
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0.013
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
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  track: The Swan Lake ACT I (scene 1). Valse
  track: The Swan Lake ACT II Grand Pas de deux. Coda
  track: The Swan Lake ACT II Scene- Allegro
  track: The Swan Lake ACT I (scene 2) Scene
  track: The Swan Lake Danses des Petits Cygnes
album: Alexander Glazunov. Raymonda
album: Tcherepnin: Le Pavillon d'Armide, Op. 29 - Enchanted Kingdom, Op. 39 - Rimsky-Korsakov: The Golden Cockerel
album: Victor Fedotov. Rimsky-Korsakov: Borodin
album: Tchaikovsky's Ballet: Swan Lake & Sleeping Beauty
album: Tchaikovsky: Swan Lake
album: Tchaikovsky the Sleeping Beauty Op. 66
album: Tchaikovsky The Sleeping Beauty Op. 66 20-24
album: Tchaikovsky The Sleeping Beauty Op. 66 25-29
album: Tchaikovsky The Sleeping Beauty Op. 66 15-19
album: Wieniawski Concerto for Violin and Orchestra No. 1 & 2
album: Tchaikovsky The Sleeping Beauty Op. 66 1-7
album: Tchaikovsky The Sleeping Beauty Op. 66 8-14
album: 50 Essential Classical Pieces by the Leningrad Philharmonic Orchestra
album: Victor Fedotov conducts Tchaikovsky and Glazunov

Liveness
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value: 0.117

Valence (Positivity)
type: PropertyValue
value: 0.067

Loudness (dB)
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value: -23.44

Key Name
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Mode Name
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The Swan Lake ACT I (scene 1). Valse
type: MusicRecording
duration: PT7M52S
duration ms: 472711
explicit: false
by artist: Victor Fedotov
in album: Peter Tchaikovsky. The Swan Lake
  type: MusicAlbum
  date published: 2006-02-07
genre: classical
isrc code: USA370544386
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbaf48010d0e303650db44f561373bbe5023d58a97d199e2ed8d93284aaa5116. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USA370544386.
  date published: 2026-07-05T10:59:37Z
audio: The Swan Lake ACT I (scene 1). Valse
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  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
    type: PropertyValue
    value: 0.077
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.844
  additional property: Liveness
    type: PropertyValue
    value: 0.057
  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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The Swan Lake ACT II Grand Pas de deux. Coda
type: MusicRecording
duration: PT1M43S
duration ms: 103886
explicit: false
by artist: Victor Fedotov
in album: Peter Tchaikovsky. The Swan Lake
  type: MusicAlbum
  date published: 2006-02-07
genre: classical
isrc code: USA370544412
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-17T13:52:44+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA370544412
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T19:12:23Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7075d1c72f071e8fb7d5ad7e275fd5d7449093fb8d6364dd4dab90d0ee0a4c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA370544412.
  date published: 2026-07-17T19:12:23Z
audio: The Swan Lake ACT II Grand Pas de deux. Coda
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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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: Key Name
    type: PropertyValue
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  additional property: Mode Name
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The Swan Lake ACT II Scene- Allegro
type: MusicRecording
duration: PT2M13S
duration ms: 133003
explicit: false
by artist: Victor Fedotov
in album: Peter Tchaikovsky. The Swan Lake
  type: MusicAlbum
  date published: 2006-02-07
genre: classical
isrc code: USA370544413
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-29T17:32:47+00:00
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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/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA370544413
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaafc09d8d733748a0b723b1dd87340990e112c3cc55272839db7e5a23edb748. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA370544413.
  date published: 2026-07-02T16:51:38Z
audio: The Swan Lake ACT II Scene- Allegro
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  additional property: Tempo (BPM)
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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: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.186
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.611
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
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The Swan Lake ACT I (scene 2) Scene
type: MusicRecording
duration: PT2M39S
duration ms: 159822
explicit: false
by artist: Victor Fedotov
in album: Peter Tchaikovsky. The Swan Lake
  type: MusicAlbum
  date published: 2006-02-07
genre: classical
isrc code: USA370544391
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
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958300
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA370544391
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6408788bc6c5047e33e49191a9a46e1a4ec6b440dcab90067fe4f7a0aa853de. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USA370544391.
  date published: 2026-07-16T16:14:30Z
audio: The Swan Lake ACT I (scene 2) Scene
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  additional property: Tempo (BPM)
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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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The Swan Lake Danses des Petits Cygnes
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duration: PT5M1S
duration ms: 301255
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by artist: Victor Fedotov
in album: Peter Tchaikovsky. The Swan Lake
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genre: classical
isrc code: USA370544423
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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
  type: PropertyValue
  value: 2026-07-16T04:30:31Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f14f3ca34305debfc276423ef35e1f5ba51d3c86dd0ddcac3a5e77fa369cc3. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USA370544423.
  date published: 2026-07-16T04:30:31Z
audio: The Swan Lake Danses des Petits Cygnes
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Alexander Glazunov. Raymonda
type: MusicAlbum
date published: 2006-02-07
track: RAYMONDA ACT II Variation III
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  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA370544867
  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
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028fe177e7328fe5cc125f51d6f50d0b221a68139ff7f54967362ee399b8f409. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:02:52Z), 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/USA370544867.
    date published: 2026-07-20T08:02:52Z
  audio: RAYMONDA ACT II Variation III
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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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track: RAYMONDA ACT II Variation IV
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  by artist: Victor Fedotov
  in album: Alexander Glazunov. Raymonda
    type: MusicAlbum
    date published: 2006-02-07
  genre: classical
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-20T09:20:46Z
  audio: RAYMONDA ACT II Variation IV
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track: RAYMONDA ACT I Pizzicato
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  in album: Alexander Glazunov. Raymonda
    type: MusicAlbum
    date published: 2006-02-07
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  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: RAYMONDA ACT I Pizzicato
track: RAYMONDA ACT I La Romanesca (Danse pour deux dames et deux pages)
track: RAYMONDA ACT I Prelude et Variation
track: RAYMONDA ACT I Variation I
track: RAYMONDA ACT III Entree
track: RAYMONDA ACT III Pas Classique Hongroi
track: RAYMONDA ACT I Variation II
track: RAYMONDA ACT I Variation III
track: RAYMONDA ACT III Variation I
track: RAYMONDA ACT III Coda

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36eff7a8f6960f2efc2f2fb5956f725f1ffd3f50d594652f57c014db868715b1. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/USA370544842.
date published: 2026-07-21T11:41:42Z

RAYMONDA ACT I Pizzicato
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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: Mode Name
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RAYMONDA ACT I La Romanesca (Danse pour deux dames et deux pages)
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duration: PT1M12S
duration ms: 72520
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by artist: Victor Fedotov
in album: Alexander Glazunov. Raymonda
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  date published: 2006-02-07
genre: classical
isrc code: USA370544846
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-21T19:00:49Z
audio: RAYMONDA ACT I La Romanesca (Danse pour deux dames et deux pages)
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RAYMONDA ACT I Prelude et Variation
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by artist: Victor Fedotov
in album: Alexander Glazunov. Raymonda
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  date published: 2006-02-07
genre: classical
isrc code: USA370544847
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T16:51:38Z
audio: RAYMONDA ACT I Prelude et Variation
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RAYMONDA ACT I Variation I
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by artist: Victor Fedotov
in album: Alexander Glazunov. Raymonda
  type: MusicAlbum
  date published: 2006-02-07
genre: classical
isrc code: USA370544855
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-21T12:00:44Z
audio: RAYMONDA ACT I Variation I
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RAYMONDA ACT III Entree
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RAYMONDA ACT III Pas Classique Hongroi
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RAYMONDA ACT I Variation II
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RAYMONDA ACT I Variation III
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RAYMONDA ACT III Variation I
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RAYMONDA ACT III Coda
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Tcherepnin: Le Pavillon d'Armide, Op. 29 - Enchanted Kingdom, Op. 39 - Rimsky-Korsakov: The Golden Cockerel
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Victor Fedotov. Rimsky-Korsakov: Borodin
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Tchaikovsky's Ballet: Swan Lake & Sleeping Beauty
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Tchaikovsky: Swan Lake
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Tchaikovsky the Sleeping Beauty Op. 66
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Tchaikovsky The Sleeping Beauty Op. 66 20-24
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Tchaikovsky The Sleeping Beauty Op. 66 20-24
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date published: 2012-04-04

Tchaikovsky The Sleeping Beauty Op. 66 25-29
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date published: 2012-04-04

Tchaikovsky The Sleeping Beauty Op. 66 15-19
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Wieniawski Concerto for Violin and Orchestra No. 1 & 2
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Tchaikovsky The Sleeping Beauty Op. 66 1-7
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Tchaikovsky The Sleeping Beauty Op. 66 1-7
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Tchaikovsky The Sleeping Beauty Op. 66 8-14
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Tchaikovsky The Sleeping Beauty Op. 66 25-29
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Tchaikovsky The Sleeping Beauty Op. 66 8-14
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50 Essential Classical Pieces by the Leningrad Philharmonic Orchestra
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Victor Fedotov conducts Tchaikovsky and Glazunov
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