Kat Kovtun
type: MusicGroup
popularity: 2
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3e8ed669f9999bbe6934a18e8498aa4339d580a53204cb1c5cd36bae9e206765
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df3d2bbc-c01c-4744-98c7-ee8c992a145f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df3d2bbc-c01c-4744-98c7-ee8c992a145f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/df3d2bbc-c01c-4744-98c7-ee8c992a145f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3e8ed669f9999bbe6934a18e8498aa4339d580a53204cb1c5cd36bae9e206765","name":"Kat Kovtun","registered_at":"2026-06-21T05:47:59Z","symbol":"NIM1838778","token_address":"0x091eac2d087f22bb905451fbf81cde54238fa92f","type":"artist","uuid":"df3d2bbc-c01c-4744-98c7-ee8c992a145f"}
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 0x3e8ed669f9999bbe6934a18e8498aa4339d580a53204cb1c5cd36bae9e206765. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df3d2bbc-c01c-4744-98c7-ee8c992a145f.json and https://artists.proofprofile.net/proofs/artist/df3d2bbc-c01c-4744-98c7-ee8c992a145f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x3e8ed669f9999bbe6934a18e8498aa4339d580a53204cb1c5cd36bae9e206765","name":"Kat Kovtun","registered_at":"2026-06-21T05:47:59Z","symbol":"NIM1838778","token_address":"0x091eac2d087f22bb905451fbf81cde54238fa92f","type":"artist","uuid":"df3d2bbc-c01c-4744-98c7-ee8c992a145f"}
album: Echos of Love
  type: MusicAlbum
  date published: 2023-10-20
album: Not my type
  type: MusicAlbum
  date published: 2025-07-15
  track: Not my type
    type: MusicRecording
    duration: PT2M31S
    duration ms: 151655
    explicit: true
    by artist: Kat Kovtun
    in album: Not my type
      type: MusicAlbum
      date published: 2025-07-15
    isrc code: USHM92555306
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T10:25:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5ad92e86959ae27c1526d328cef2791fd54a003dae033b95f8fd5c072b03ad13
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959123
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959123
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92555306
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T11:35:32Z
    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 0x5ad92e86959ae27c1526d328cef2791fd54a003dae033b95f8fd5c072b03ad13. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USHM92555306.
      date published: 2026-07-22T11:35:32Z
    audio: Not my type
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.972
      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: 0.788
      additional property: Energy
        type: PropertyValue
        value: 0.861
      additional property: Speechiness
        type: PropertyValue
        value: 0.071
      additional property: Acousticness
        type: PropertyValue
        value: 0.067
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.01
      additional property: Liveness
        type: PropertyValue
        value: 0.342
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.532
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.654
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major