NASTROVA
type: MusicGroup
genre: tekno
popularity: 3
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x33e4a86036b353e482592bcb04940f333cf94698381a2bd1345aa0c955d84d91
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954028
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954028
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a505a59-6dc2-4725-b289-44ef5974763c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a505a59-6dc2-4725-b289-44ef5974763c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3a505a59-6dc2-4725-b289-44ef5974763c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:08:06Z
additional property: OTSCanonicalRecord
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 0x33e4a86036b353e482592bcb04940f333cf94698381a2bd1345aa0c955d84d91. Chain 2 (Bitcoin): anchored in block 954028 (2026-06-17T01:08:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a505a59-6dc2-4725-b289-44ef5974763c.json and https://artists.proofprofile.net/proofs/artist/3a505a59-6dc2-4725-b289-44ef5974763c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:08:06Z
album: Until You Love Me
  type: MusicAlbum
  date published: 2022
album: Until You Love Me
  type: MusicAlbum
  date published: 2022-09-02
album: Serdce ne igrushka
  type: MusicAlbum
  date published: 2023-02-03
  track: Serdce ne igrushka
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179956
    explicit: false
    by artist: NASTROVA
    in album: Serdce ne igrushka
      type: MusicAlbum
      date published: 2023-02-03
    genre: tekno
    isrc code: TCAGU2345433
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T13:08:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc382e7090f830d4f9bc769d731c1dcfa93d566255793b0d0423f5cc1a1657d3f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959008
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959008
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGU2345433
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:14:05Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc382e7090f830d4f9bc769d731c1dcfa93d566255793b0d0423f5cc1a1657d3f. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCAGU2345433.
      date published: 2026-07-21T13:14:05Z
    audio: Serdce ne igrushka
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 214.523
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.34
      additional property: Energy
        type: PropertyValue
        value: 0.976
      additional property: Speechiness
        type: PropertyValue
        value: 0.065
      additional property: Acousticness
        type: PropertyValue
        value: 0.02
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.193
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.121
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.681
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Целуй Меня (Hardstyle Remix)
  type: MusicAlbum
  date published: 2024-11-08
album: Serdce ne igrushka
  type: MusicAlbum
  date published: 2024-12-06