Liza Vassilieva
type: MusicGroup
popularity: 5
followers: 385
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd262258396004ecb634d994402a6d3138b1b2e425ffade929bb5d810e74d5acc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0584b36a-4c04-497a-b334-831c857902cc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0584b36a-4c04-497a-b334-831c857902cc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0584b36a-4c04-497a-b334-831c857902cc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd262258396004ecb634d994402a6d3138b1b2e425ffade929bb5d810e74d5acc","name":"Liza Vassilieva","registered_at":"2026-06-15T15:21:55Z","symbol":"NIM0749753","token_address":"0x4219f22b15c1e483149120f6b3c467e93a576efc","type":"artist","uuid":"0584b36a-4c04-497a-b334-831c857902cc"}
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 0xd262258396004ecb634d994402a6d3138b1b2e425ffade929bb5d810e74d5acc. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0584b36a-4c04-497a-b334-831c857902cc.json and https://artists.proofprofile.net/proofs/artist/0584b36a-4c04-497a-b334-831c857902cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0xd262258396004ecb634d994402a6d3138b1b2e425ffade929bb5d810e74d5acc","name":"Liza Vassilieva","registered_at":"2026-06-15T15:21:55Z","symbol":"NIM0749753","token_address":"0x4219f22b15c1e483149120f6b3c467e93a576efc","type":"artist","uuid":"0584b36a-4c04-497a-b334-831c857902cc"}
album: I Am Gay
  type: MusicAlbum
  date published: 2020-02-03
  track: I Am Gay
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165133
    explicit: false
    by artist: Liza Vassilieva
    in album: I Am Gay
      type: MusicAlbum
      date published: 2020-02-03
    isrc code: QZFYY2035469
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T14:15:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x98a929019c5ddb0d386a801d4ed8878d32f9773ddd6dda9fb70d68fdbfdd9bf9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956560
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956560
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2035469
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T23:28:02Z
    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 0x98a929019c5ddb0d386a801d4ed8878d32f9773ddd6dda9fb70d68fdbfdd9bf9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZFYY2035469.
      date published: 2026-07-03T23:28:02Z
    audio: I Am Gay
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.944
      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: 0.728
      additional property: Energy
        type: PropertyValue
        value: 0.691
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.064
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.247
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.719
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.272
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Go All In (The Official Song Vinterpride Lillehammer 2023)
  type: MusicAlbum
  date published: 2023-01-20