Kristina Kataeva
type: MusicGroup
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x220adff969860c02f0e5016f8165d502012bdfd171224b38b151be14ef9cb1b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/309dd218-86a4-4074-b7cf-91d1c3e9bd7c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/309dd218-86a4-4074-b7cf-91d1c3e9bd7c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/309dd218-86a4-4074-b7cf-91d1c3e9bd7c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x220adff969860c02f0e5016f8165d502012bdfd171224b38b151be14ef9cb1b0","name":"Kristina Kataeva","registered_at":"2026-06-16T06:33:36Z","symbol":"NIM0967387","token_address":"0xba3f0c96d972b80ec102d02e218c717980ee9063","type":"artist","uuid":"309dd218-86a4-4074-b7cf-91d1c3e9bd7c"}
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 0x220adff969860c02f0e5016f8165d502012bdfd171224b38b151be14ef9cb1b0. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/309dd218-86a4-4074-b7cf-91d1c3e9bd7c.json and https://artists.proofprofile.net/proofs/artist/309dd218-86a4-4074-b7cf-91d1c3e9bd7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x220adff969860c02f0e5016f8165d502012bdfd171224b38b151be14ef9cb1b0","name":"Kristina Kataeva","registered_at":"2026-06-16T06:33:36Z","symbol":"NIM0967387","token_address":"0xba3f0c96d972b80ec102d02e218c717980ee9063","type":"artist","uuid":"309dd218-86a4-4074-b7cf-91d1c3e9bd7c"}
album: The Fisherman
  type: MusicAlbum
  date published: 2025-03-11
  track: The Deep Sea
    type: MusicRecording
    duration: PT0M53S
    duration ms: 53023
    explicit: false
    by artist: Kristina Kataeva
    in album: The Fisherman
      type: MusicAlbum
      date published: 2025-03-11
    isrc code: CACWV2564069
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T11:00:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5f502cf8929d00e37c5af7bcec607eb2b4c491927304130f34a28551cdc6dc01
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958286
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958286
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV2564069
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T14:10:54Z
    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 0x5f502cf8929d00e37c5af7bcec607eb2b4c491927304130f34a28551cdc6dc01. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:10:54Z), 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/CACWV2564069.
      date published: 2026-07-16T14:10:54Z
    audio: The Deep Sea
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 72.389
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.468
      additional property: Energy
        type: PropertyValue
        value: 0.001
      additional property: Speechiness
        type: PropertyValue
        value: 0.104
      additional property: Acousticness
        type: PropertyValue
        value: 0.989
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.958
      additional property: Liveness
        type: PropertyValue
        value: 0.09
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0
      additional property: Loudness (dB)
        type: PropertyValue
        value: -26.714
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor