Marina Stolyar
type: MusicGroup
popularity: 23
followers: 808
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb142ccc7edd7daeb679738fc01dad2fb323620cc38ad679bae7b0b0a138492e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4bd054a-abe7-42ef-8f5c-ea982fc75531.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4bd054a-abe7-42ef-8f5c-ea982fc75531.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d4bd054a-abe7-42ef-8f5c-ea982fc75531
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb142ccc7edd7daeb679738fc01dad2fb323620cc38ad679bae7b0b0a138492e5","name":"Marina Stolyar","registered_at":"2026-06-12T10:48:30Z","symbol":"NIM0274715","token_address":"0x4cd13c53c025a93e6a0fa55d3a6893d9996eb16d","type":"artist","uuid":"d4bd054a-abe7-42ef-8f5c-ea982fc75531"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb142ccc7edd7daeb679738fc01dad2fb323620cc38ad679bae7b0b0a138492e5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4bd054a-abe7-42ef-8f5c-ea982fc75531.json and https://artists.proofprofile.net/proofs/artist/d4bd054a-abe7-42ef-8f5c-ea982fc75531.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xb142ccc7edd7daeb679738fc01dad2fb323620cc38ad679bae7b0b0a138492e5","name":"Marina Stolyar","registered_at":"2026-06-12T10:48:30Z","symbol":"NIM0274715","token_address":"0x4cd13c53c025a93e6a0fa55d3a6893d9996eb16d","type":"artist","uuid":"d4bd054a-abe7-42ef-8f5c-ea982fc75531"}
album: Have a Fun Class!: Solo Piano Music for Ballet Class (Special Edition)
  type: MusicAlbum
  date published: 2019-03-23
  track: Warm up 3/4 64 Counts
    type: MusicRecording
    duration: PT2M1S
    duration ms: 121765
    explicit: false
    by artist: Marina Stolyar
    in album: Have a Fun Class!: Solo Piano Music for Ballet Class (Special Edition)
      type: MusicAlbum
      date published: 2019-03-23
    isrc code: USA2P1916013
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T18:31:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe8d5b8cd2928c7b0913b31dd4a1ae0f8ee1f05847a2240694c2aa7daddb19d72
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958924
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958924
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1916013
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:34:14Z
    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 0xe8d5b8cd2928c7b0913b31dd4a1ae0f8ee1f05847a2240694c2aa7daddb19d72. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:34:14Z), 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/USA2P1916013.
      date published: 2026-07-20T21:34:14Z
    audio: Warm up 3/4 64 Counts
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.241
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.445
      additional property: Energy
        type: PropertyValue
        value: 0.137
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.983
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.833
      additional property: Liveness
        type: PropertyValue
        value: 0.122
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.602
      additional property: Loudness (dB)
        type: PropertyValue
        value: -23.233
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Plie 6/8 64 Counts
    type: MusicRecording
    duration: PT2M3S
    duration ms: 123637
    explicit: false
    by artist: Marina Stolyar
    in album: Have a Fun Class!: Solo Piano Music for Ballet Class (Special Edition)
      type: MusicAlbum
      date published: 2019-03-23
    isrc code: USA2P1916014
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T03:27:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xad11589458949fd3ca363a81bbd8999a1157807ba6c229cb40651c63348bab18
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958491
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958491
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1916014
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:29:42Z
    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 0xad11589458949fd3ca363a81bbd8999a1157807ba6c229cb40651c63348bab18. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USA2P1916014.
      date published: 2026-07-18T04:29:42Z
    audio: Plie 6/8 64 Counts
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.198
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.391
      additional property: Energy
        type: PropertyValue
        value: 0.047
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.973
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.81
      additional property: Liveness
        type: PropertyValue
        value: 0.126
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.433
      additional property: Loudness (dB)
        type: PropertyValue
        value: -23.635
      additional property: Key Name
      additional property: Mode Name
  track: Tendu 4/4 64 Counts
  track: Jete 3/4 64 Counts
  track: Rond De Jambe Par Terre 3/4 64 Counts
  track: Fondu 3/4 64 Counts
album: Music for Ballet (Solo Piano)
album: Character! Have a Fun Class! (9 Solo Piano Music for Character Class)
album: Ballet Class with Marina Stolyar. 2021 Edition
album: Unplugged

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Tendu 4/4 64 Counts
type: MusicRecording
duration: PT1M39S
duration ms: 99178
explicit: false
by artist: Marina Stolyar
in album: Have a Fun Class!: Solo Piano Music for Ballet Class (Special Edition)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1916015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T01:42:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a092db0abe11a846d7b7f885e0837d51bcd13646d06460aa51d8b96951c8815
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958808
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958808
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1916015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T02:49:15Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a092db0abe11a846d7b7f885e0837d51bcd13646d06460aa51d8b96951c8815. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USA2P1916015.
  date published: 2026-07-20T02:49:15Z
audio: Tendu 4/4 64 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 83.558
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.53
  additional property: Energy
    type: PropertyValue
    value: 0.201
  additional property: Speechiness
    type: PropertyValue
    value: 0.072
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.793
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.548
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.631
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tendu 4/4 64 Counts
type: MusicRecording
duration: PT1M15S
duration ms: 75520
explicit: false
by artist: Marina Stolyar
in album: Have a Fun Class!: Solo Piano Music for Ballet Class (Special Edition)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1916016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T17:41:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39beec49b3d88ec08747fc5eccc45acdc9cd1d2735f4c1a4926d2903499d2695
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959043
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1916016
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T20:43:08Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39beec49b3d88ec08747fc5eccc45acdc9cd1d2735f4c1a4926d2903499d2695. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:43:08Z), 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/USA2P1916016.
  date published: 2026-07-21T20:43:08Z
audio: Tendu 4/4 64 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.414
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.633
  additional property: Energy
    type: PropertyValue
    value: 0.163
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.853
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.638
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.994
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Jete 3/4 64 Counts
type: MusicRecording
duration: PT1M5S
duration ms: 65077
explicit: false
by artist: Marina Stolyar
in album: Have a Fun Class!: Solo Piano Music for Ballet Class (Special Edition)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1916017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T10:11:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf97419cfae9e98977289cef1f8c2727e19533597621690f706d15f4eae84c2ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958716
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958716
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1916017
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T10:15:55Z
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 0xf97419cfae9e98977289cef1f8c2727e19533597621690f706d15f4eae84c2ab. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USA2P1916017.
  date published: 2026-07-19T10:15:55Z
audio: Jete 3/4 64 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 96.945
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.546
  additional property: Energy
    type: PropertyValue
    value: 0.092
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.936
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.929
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.358
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Rond De Jambe Par Terre 3/4 64 Counts
type: MusicRecording
duration: PT1M56S
duration ms: 116528
explicit: false
by artist: Marina Stolyar
in album: Have a Fun Class!: Solo Piano Music for Ballet Class (Special Edition)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1916019
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T03:14:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0870466317ca5bff469ec41c6511959daac13c4de39bf7f29f7096e37745583
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958484
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958484
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1916019
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T03:34:53Z
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 0xb0870466317ca5bff469ec41c6511959daac13c4de39bf7f29f7096e37745583. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USA2P1916019.
  date published: 2026-07-18T03:34:53Z
audio: Rond De Jambe Par Terre 3/4 64 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.632
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.485
  additional property: Energy
    type: PropertyValue
    value: 0.152
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.923
  additional property: Liveness
    type: PropertyValue
    value: 0.195
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.359
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.828
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Fondu 3/4 64 Counts
type: MusicRecording
duration: PT2M1S
duration ms: 121389
explicit: false
by artist: Marina Stolyar
in album: Have a Fun Class!: Solo Piano Music for Ballet Class (Special Edition)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1916020
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T13:53:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa70541b98630b80230d8c3b0bb7cf5994545198b5d1d03ea3d126af66dd5dfd9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958601
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958601
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1916020
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T19:27:02Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70541b98630b80230d8c3b0bb7cf5994545198b5d1d03ea3d126af66dd5dfd9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USA2P1916020.
  date published: 2026-07-18T19:27:02Z
audio: Fondu 3/4 64 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.771
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.477
  additional property: Energy
    type: PropertyValue
    value: 0.104
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.968
  additional property: Liveness
    type: PropertyValue
    value: 0.158
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.286
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.178
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Music for Ballet (Solo Piano)
type: MusicAlbum
date published: 2019-03-23
track: Warm up 2/4 64 Counts
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144901
  explicit: false
  by artist: Marina Stolyar
  in album: Music for Ballet (Solo Piano)
    type: MusicAlbum
    date published: 2019-03-23
  isrc code: USA2P1915930
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T22:43:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0b7b78f0bb18122b7d25cce6ae64f65382f6e56da7e3c9d51ad3e4d52636bead
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915930
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7b78f0bb18122b7d25cce6ae64f65382f6e56da7e3c9d51ad3e4d52636bead. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA2P1915930.
    date published: 2026-07-05T01:12:41Z
  audio: Warm up 2/4 64 Counts
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 117.494
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.7
    additional property: Energy
      type: PropertyValue
      value: 0.1
    additional property: Speechiness
      type: PropertyValue
      value: 0.077
    additional property: Acousticness
      type: PropertyValue
      value: 0.991
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.857
    additional property: Liveness
      type: PropertyValue
      value: 0.098
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.473
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.365
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Plie 3/4 64 Counts
  type: MusicRecording
  duration: PT1M56S
  duration ms: 116897
  explicit: false
  by artist: Marina Stolyar
  in album: Music for Ballet (Solo Piano)
    type: MusicAlbum
    date published: 2019-03-23
  isrc code: USA2P1915931
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T00:50:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5b18652eb59aa8c50bd8ea201ebf63d0f5e8dc60dad2bdfc955f37186fe06d9d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958341
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958341
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915931
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T03:53:50Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b18652eb59aa8c50bd8ea201ebf63d0f5e8dc60dad2bdfc955f37186fe06d9d. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:53:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915931.
    date published: 2026-07-17T03:53:50Z
  audio: Plie 3/4 64 Counts
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.114
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.494
    additional property: Energy
      type: PropertyValue
      value: 0.05
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.992
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.838
    additional property: Liveness
      type: PropertyValue
      value: 0.125
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.217
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.189
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Tendu 3/4 64 Counts
  type: MusicRecording
  duration: PT1M32S
  duration ms: 92316
  explicit: false
  by artist: Marina Stolyar
  in album: Music for Ballet (Solo Piano)
    type: MusicAlbum
    date published: 2019-03-23
  isrc code: USA2P1915932
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T17:30:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x64c75604237c2f353c1800c339d8384ba2cdc9db6b30365a57b5b416f4eb7608
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958917
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958917
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915932
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Tendu 3/4 64 Counts
track: Tendu 2/4 64 Counts
track: Jete 2/4 32 Counts
track: Pique 2/4 32 Counts
track: Rond De Jambe Par Terre 3/4 64 Counts
track: Frappe 6/8 32 Counts
track: Adagio 6/8 64 Counts
track: Grand Battement 4/4 32 Counts
track: Grand Jete 3/4 32 Counts

OTSTimestamp
type: PropertyValue
value: 2026-07-20T17:53:56Z

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 0x64c75604237c2f353c1800c339d8384ba2cdc9db6b30365a57b5b416f4eb7608. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USA2P1915932.
date published: 2026-07-20T17:53:56Z

Tendu 3/4 64 Counts
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 144.789
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.557
additional property: Energy
  type: PropertyValue
  value: 0.068
additional property: Speechiness
  type: PropertyValue
  value: 0.068
additional property: Acousticness
  type: PropertyValue
  value: 0.981
additional property: Instrumentalness
  type: PropertyValue
  value: 0.844
additional property: Liveness
  type: PropertyValue
  value: 0.101
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.86
additional property: Loudness (dB)
  type: PropertyValue
  value: -26.679
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Tendu 2/4 64 Counts
type: MusicRecording
duration: PT1M30S
duration ms: 90383
explicit: false
by artist: Marina Stolyar
in album: Music for Ballet (Solo Piano)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1915933
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T12:30:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74f7d06dd923a7a485e99bc5d2d4bf86705cbd7d3ad5ff2b7b27f093ca549d0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958733
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958733
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915933
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T12:51:21Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f7d06dd923a7a485e99bc5d2d4bf86705cbd7d3ad5ff2b7b27f093ca549d0a. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/USA2P1915933.
  date published: 2026-07-19T12:51:21Z
audio: Tendu 2/4 64 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.024
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.71
  additional property: Energy
    type: PropertyValue
    value: 0.128
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.877
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.414
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.853
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.113
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Jete 2/4 32 Counts
type: MusicRecording
duration: PT0M47S
duration ms: 47124
explicit: false
by artist: Marina Stolyar
in album: Music for Ballet (Solo Piano)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1915934
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T10:48:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b574974abf87ef6dbe0d1af1e8d9f62db40491a3be53621100227f11a46d9b3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958721
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958721
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915934
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T11:02:33Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b574974abf87ef6dbe0d1af1e8d9f62db40491a3be53621100227f11a46d9b3. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USA2P1915934.
  date published: 2026-07-19T11:02:33Z
audio: Jete 2/4 32 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.986
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.768
  additional property: Energy
    type: PropertyValue
    value: 0.111
  additional property: Speechiness
    type: PropertyValue
    value: 0.128
  additional property: Acousticness
    type: PropertyValue
    value: 0.839
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.361
  additional property: Liveness
    type: PropertyValue
    value: 0.062
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.803
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.179
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pique 2/4 32 Counts
type: MusicRecording
duration: PT0M36S
duration ms: 36728
explicit: false
by artist: Marina Stolyar
in album: Music for Ballet (Solo Piano)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1915935
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T22:29:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff39e21a3445e98c3551d9b80a41ace8584419f3180bf276b2a62bcf65106221
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956857
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956857
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915935
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:26:17Z
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 0xff39e21a3445e98c3551d9b80a41ace8584419f3180bf276b2a62bcf65106221. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USA2P1915935.
  date published: 2026-07-06T01:26:17Z
audio: Pique 2/4 32 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.615
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.659
  additional property: Energy
    type: PropertyValue
    value: 0.246
  additional property: Speechiness
    type: PropertyValue
    value: 0.281
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.822
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.994
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.967
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rond De Jambe Par Terre 3/4 64 Counts
type: MusicRecording
duration: PT4M1S
duration ms: 241737
explicit: false
by artist: Marina Stolyar
in album: Music for Ballet (Solo Piano)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1915936
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T19:30:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3704a06b457b12bcf583fef2f700ef058b4ffdd19943a7614d3d6505fd781f2e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956545
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956545
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915936
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T19:59:51Z
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 0x3704a06b457b12bcf583fef2f700ef058b4ffdd19943a7614d3d6505fd781f2e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USA2P1915936.
  date published: 2026-07-03T19:59:51Z
audio: Rond De Jambe Par Terre 3/4 64 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.631
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.52
  additional property: Energy
    type: PropertyValue
    value: 0.105
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.909
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.325
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.895
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Frappe 6/8 32 Counts
type: MusicRecording
duration: PT0M42S
duration ms: 42605
explicit: false
by artist: Marina Stolyar
in album: Music for Ballet (Solo Piano)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1915939
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T07:19:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9e7cbee2e75e11b6656e90050d225028b9ee9016595dfbcf87ac0b6976aaac0e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959110
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959110
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915939
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T10:22:05Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7cbee2e75e11b6656e90050d225028b9ee9016595dfbcf87ac0b6976aaac0e. Chain 2 (Bitcoin): anchored in block 959110 (2026-07-22T10:22:05Z), 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/USA2P1915939.
  date published: 2026-07-22T10:22:05Z
audio: Frappe 6/8 32 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.604
  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: 0.754
  additional property: Energy
    type: PropertyValue
    value: 0.153
  additional property: Speechiness
    type: PropertyValue
    value: 0.187
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.858
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.98
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.59
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Adagio 6/8 64 Counts
type: MusicRecording
duration: PT2M9S
duration ms: 129123
explicit: false
by artist: Marina Stolyar
in album: Music for Ballet (Solo Piano)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1915940
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T03:19:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ab21727cda19f1f3b38d5e1ce7748486aad9a3c9fa5104ed443145db1cde0ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959094
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959094
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915940
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T03:33:16Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab21727cda19f1f3b38d5e1ce7748486aad9a3c9fa5104ed443145db1cde0ee. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USA2P1915940.
  date published: 2026-07-22T03:33:16Z
audio: Adagio 6/8 64 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.143
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.426
  additional property: Energy
    type: PropertyValue
    value: 0.026
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.879
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.466
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.218
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Grand Battement 4/4 32 Counts
type: MusicRecording
duration: PT0M48S
duration ms: 48483
explicit: false
by artist: Marina Stolyar
in album: Music for Ballet (Solo Piano)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1915942
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-12T20:05:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe201cef40ca4401cf83363e6dbaea81744c4ba938e624d2f5765cbbc6ffaef49
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957750
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915942
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-12T20:39:38Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe201cef40ca4401cf83363e6dbaea81744c4ba938e624d2f5765cbbc6ffaef49. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USA2P1915942.
  date published: 2026-07-12T20:39:38Z
audio: Grand Battement 4/4 32 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 50
  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
  additional property: Energy
    type: PropertyValue
    value: 0.092
  additional property: Speechiness
    type: PropertyValue
    value: 0
  additional property: Acousticness
    type: PropertyValue
    value: 0.916
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.838
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.102
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Grand Jete 3/4 32 Counts
type: MusicRecording
duration: PT0M35S
duration ms: 35082
explicit: false
by artist: Marina Stolyar
in album: Music for Ballet (Solo Piano)
  type: MusicAlbum
  date published: 2019-03-23
isrc code: USA2P1915956
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T11:23:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57287518142e41d5f9896861a9f1741e83da1f3a4c3b612c612d30e121bd5bde
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958726
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958726
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1915956
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T11:47:20Z
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 0x57287518142e41d5f9896861a9f1741e83da1f3a4c3b612c612d30e121bd5bde. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USA2P1915956.
  date published: 2026-07-19T11:47:20Z
audio: Grand Jete 3/4 32 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.557
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.61
  additional property: Energy
    type: PropertyValue
    value: 0.177
  additional property: Speechiness
    type: PropertyValue
    value: 0.217
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.544
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.691
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.956
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Character! Have a Fun Class! (9 Solo Piano Music for Character Class)
type: MusicAlbum
date published: 2019-03-30

Ballet Class with Marina Stolyar. 2021 Edition
type: MusicAlbum
date published: 2021-07-15
track: Warm up 3/4 128 Counts.
  type: MusicRecording
  duration: PT3M27S
  duration ms: 207867
  explicit: false
  by artist: Marina Stolyar
  in album: Ballet Class with Marina Stolyar. 2021 Edition
    type: MusicAlbum
    date published: 2021-07-15
  isrc code: QZKWA2028158
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T13:31:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb21c40596ccf4947b5740be66675dce33c8c5cff3d11032b1f9060300c4b3a57
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958561
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958561
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2028158
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T14:22:01Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21c40596ccf4947b5740be66675dce33c8c5cff3d11032b1f9060300c4b3a57. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZKWA2028158.
    date published: 2026-07-18T14:22:01Z
  audio: Warm up 3/4 128 Counts.
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.398
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.419
    additional property: Energy
      type: PropertyValue
      value: 0.052
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.984
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.946
    additional property: Liveness
      type: PropertyValue
      value: 0.118
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.261
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.031
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Plie. 4/4 64 Counts
  type: MusicRecording
  duration: PT2M20S
  duration ms: 140310
  explicit: false
  by artist: Marina Stolyar
  in album: Ballet Class with Marina Stolyar. 2021 Edition
    type: MusicAlbum
    date published: 2021-07-15
  isrc code: QZKWA2028159
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T03:17:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x20b480d7a9f009960493b69e9819177fd6bf13f1c17d9a6c422df1df82837275
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958816
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958816
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2028159
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T03:51:05Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b480d7a9f009960493b69e9819177fd6bf13f1c17d9a6c422df1df82837275. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZKWA2028159.
    date published: 2026-07-20T03:51:05Z
  audio: Plie. 4/4 64 Counts
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.601
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.47
    additional property: Energy
      type: PropertyValue
      value: 0.018
    additional property: Speechiness
      type: PropertyValue
      value: 0.055
    additional property: Acousticness
      type: PropertyValue
      value: 0.992
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.85
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.404
    additional property: Loudness (dB)
      type: PropertyValue
      value: -29.24
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Tendu 4/4 64 Counts
  type: MusicRecording
  duration: PT1M55S
  duration ms: 115756
  explicit: false
  by artist: Marina Stolyar
  in album: Ballet Class with Marina Stolyar. 2021 Edition
    type: MusicAlbum
    date published: 2021-07-15
  isrc code: QZKWA2028160
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T05:34:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe66591f026df6f5b3d798ed8b8f7930bfc574e970c16ea68800706c96568d8ed
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958975
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958975
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2028160
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Tendu 4/4 64 Counts
track: Jete. 2/4 64 Counts.
track: Rond De Jambe Par Terre 3/4 64 Counts
track: Fondu 4/4 64 Counts.

OTSTimestamp
type: PropertyValue
value: 2026-07-21T06:12:52Z

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 0xe66591f026df6f5b3d798ed8b8f7930bfc574e970c16ea68800706c96568d8ed. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZKWA2028160.
date published: 2026-07-21T06:12:52Z

Tendu 4/4 64 Counts
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 75.098
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.624
additional property: Energy
  type: PropertyValue
  value: 0.098
additional property: Speechiness
  type: PropertyValue
  value: 0.063
additional property: Acousticness
  type: PropertyValue
  value: 0.992
additional property: Instrumentalness
  type: PropertyValue
  value: 0.881
additional property: Liveness
  type: PropertyValue
  value: 0.092
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.342
additional property: Loudness (dB)
  type: PropertyValue
  value: -25.243
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Jete. 2/4 64 Counts.
type: MusicRecording
duration: PT1M15S
duration ms: 75976
explicit: false
by artist: Marina Stolyar
in album: Ballet Class with Marina Stolyar. 2021 Edition
  type: MusicAlbum
  date published: 2021-07-15
isrc code: QZKWA2028162
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T18:28:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe1894b0dd89c7678a4937e4f1fc10e92fd8aaa0bcb8eba240340c5885c5a395f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959047
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959047
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2028162
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T21:30:44Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1894b0dd89c7678a4937e4f1fc10e92fd8aaa0bcb8eba240340c5885c5a395f. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:30:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2028162.
  date published: 2026-07-21T21:30:44Z
audio: Jete. 2/4 64 Counts.
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.489
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.672
  additional property: Energy
    type: PropertyValue
    value: 0.111
  additional property: Speechiness
    type: PropertyValue
    value: 0.09
  additional property: Acousticness
    type: PropertyValue
    value: 0.932
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.919
  additional property: Liveness
    type: PropertyValue
    value: 0.076
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.704
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.295
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rond De Jambe Par Terre 3/4 64 Counts
type: MusicRecording
duration: PT2M0S
duration ms: 120213
explicit: false
by artist: Marina Stolyar
in album: Ballet Class with Marina Stolyar. 2021 Edition
  type: MusicAlbum
  date published: 2021-07-15
isrc code: QZKWA2028164
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T17:02:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78cf2242150d86210373469796b0ed29d0d97a67169de8752a6dee51d41d3c38
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956728
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2028164
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:43:49Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cf2242150d86210373469796b0ed29d0d97a67169de8752a6dee51d41d3c38. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZKWA2028164.
  date published: 2026-07-05T01:43:49Z
audio: Rond De Jambe Par Terre 3/4 64 Counts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.607
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.424
  additional property: Energy
    type: PropertyValue
    value: 0.052
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.82
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.232
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.34
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Fondu 4/4 64 Counts.
type: MusicRecording
duration: PT1M59S
duration ms: 119873
explicit: false
by artist: Marina Stolyar
in album: Ballet Class with Marina Stolyar. 2021 Edition
  type: MusicAlbum
  date published: 2021-07-15
isrc code: QZKWA2028165
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T12:19:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd6c5c21c97207ba5151b33ec84bf2850e08e953911b0e642e26232001994ff67
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956822
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956822
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2028165
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T18:48:28Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c5c21c97207ba5151b33ec84bf2850e08e953911b0e642e26232001994ff67. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZKWA2028165.
  date published: 2026-07-05T18:48:28Z
audio: Fondu 4/4 64 Counts.
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 72.354
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.608
  additional property: Energy
    type: PropertyValue
    value: 0.081
  additional property: Speechiness
    type: PropertyValue
    value: 0.07
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.778
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.431
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.059
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Unplugged
type: MusicAlbum
date published: 2025-02-24
track: Plie 3:4 64 Counts
  type: MusicRecording
  duration: PT1M45S
  duration ms: 105870
  explicit: false
  by artist: Marina Stolyar
  in album: Unplugged
    type: MusicAlbum
    date published: 2025-02-24
  isrc code: QZKWA2322469
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T23:39:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x75b3b72410ea965e6727253b3d655e490101a62d3d4f3d583ed0433480f9e4d6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKWA2322469
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b3b72410ea965e6727253b3d655e490101a62d3d4f3d583ed0433480f9e4d6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZKWA2322469.
    date published: 2026-07-06T01:25:57Z
  audio: Plie 3:4 64 Counts
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.016
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.465
    additional property: Energy
      type: PropertyValue
      value: 0.035
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.989
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.829
    additional property: Liveness
      type: PropertyValue
      value: 0.133
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.252
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.515
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major