Nadin Polyakova
type: MusicGroup
popularity: 8
followers: 177
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x366d5b4094048c9c15cd295527f6bd21a0bd6b8e59b1710c54a9a4fc374740c8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bad82bed-fb94-4eaa-a65d-48b55094c474.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bad82bed-fb94-4eaa-a65d-48b55094c474.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bad82bed-fb94-4eaa-a65d-48b55094c474
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x366d5b4094048c9c15cd295527f6bd21a0bd6b8e59b1710c54a9a4fc374740c8","name":"Nadin Polyakova","registered_at":"2026-06-20T17:15:06Z","symbol":"NIM1663363","token_address":"0x916fb5f2087ac2cfa5b51c167bf088f860985fb5","type":"artist","uuid":"bad82bed-fb94-4eaa-a65d-48b55094c474"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366d5b4094048c9c15cd295527f6bd21a0bd6b8e59b1710c54a9a4fc374740c8. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bad82bed-fb94-4eaa-a65d-48b55094c474.json and https://artists.proofprofile.net/proofs/artist/bad82bed-fb94-4eaa-a65d-48b55094c474.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x366d5b4094048c9c15cd295527f6bd21a0bd6b8e59b1710c54a9a4fc374740c8","name":"Nadin Polyakova","registered_at":"2026-06-20T17:15:06Z","symbol":"NIM1663363","token_address":"0x916fb5f2087ac2cfa5b51c167bf088f860985fb5","type":"artist","uuid":"bad82bed-fb94-4eaa-a65d-48b55094c474"}
album: The Romanovs (Strings)
  type: MusicAlbum
  date published: 2020-03-13
album: 10 Piano Pieces
  type: MusicAlbum
  date published: 2023-11-10
  track: Matches
    type: MusicRecording
    duration: PT3M36S
    duration ms: 216500
    explicit: false
    by artist: Nadin Polyakova
    in album: 10 Piano Pieces
      type: MusicAlbum
      date published: 2023-11-10
    isrc code: QZTB62352586
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T02:48:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb6264a37569d0431f392d4d6a663758ffb5eb13ab2044e0e85237b9e399a8995
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958234
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958234
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62352586
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T03:46:09Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6264a37569d0431f392d4d6a663758ffb5eb13ab2044e0e85237b9e399a8995. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62352586.
      date published: 2026-07-16T03:46:09Z
    audio: Matches
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.61
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.313
      additional property: Energy
        type: PropertyValue
        value: 0.062
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.991
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.913
      additional property: Liveness
        type: PropertyValue
        value: 0.128
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.151
      additional property: Loudness (dB)
        type: PropertyValue
        value: -24.497
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Little Aza
  type: MusicAlbum
  date published: 2023-11-10
album: Emptiness
  type: MusicAlbum
  date published: 2023-11-10
album: Toddler
  type: MusicAlbum
  date published: 2023-11-10
album: Matches
  type: MusicAlbum
  date published: 2023-11-10
album: Come Soon Please
  type: MusicAlbum
  date published: 2023-11-10
album: Insomnia
  type: MusicAlbum
  date published: 2023-11-10
album: Melancholy
  type: MusicAlbum
  date published: 2023-11-10
album: Matreshka
  type: MusicAlbum
  date published: 2023-11-10
album: Polka-Etude
  type: MusicAlbum
  date published: 2023-11-10
album: Siesta
  type: MusicAlbum
  date published: 2023-11-10
album: Love's Sorrow
  type: MusicAlbum
  date published: 2023-11-28