Nina Katrine
type: MusicGroup
popularity: 5
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x216adbbd9e64d516463df3a45509ecbb4f7adb28a19663d4b4ef6e920d620a62
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953976
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953976
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2bd09e40-af0c-4a37-9f42-9e82e16b5400.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2bd09e40-af0c-4a37-9f42-9e82e16b5400.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2bd09e40-af0c-4a37-9f42-9e82e16b5400
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:55:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x216adbbd9e64d516463df3a45509ecbb4f7adb28a19663d4b4ef6e920d620a62","name":"Nina Katrine","registered_at":"2026-06-16T04:47:00Z","symbol":"NIM0941909","token_address":"0x87372ec72babb40f58954daf4e26e6674e5c1cb1","type":"artist","uuid":"2bd09e40-af0c-4a37-9f42-9e82e16b5400"}
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 0x216adbbd9e64d516463df3a45509ecbb4f7adb28a19663d4b4ef6e920d620a62. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2bd09e40-af0c-4a37-9f42-9e82e16b5400.json and https://artists.proofprofile.net/proofs/artist/2bd09e40-af0c-4a37-9f42-9e82e16b5400.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x216adbbd9e64d516463df3a45509ecbb4f7adb28a19663d4b4ef6e920d620a62","name":"Nina Katrine","registered_at":"2026-06-16T04:47:00Z","symbol":"NIM0941909","token_address":"0x87372ec72babb40f58954daf4e26e6674e5c1cb1","type":"artist","uuid":"2bd09e40-af0c-4a37-9f42-9e82e16b5400"}
album: I don`t need your loving anymore
  type: MusicAlbum
  date published: 2025-06-01
album: I don't need your loving anymore
  type: MusicAlbum
  date published: 2025-06-01
  track: I don't need your loving anymore
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224396
    explicit: false
    by artist: Nina Katrine
    in album: I don't need your loving anymore
      type: MusicAlbum
      date published: 2025-06-01
    isrc code: QZTAX2501319
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T00:43:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7705356e405a084315c2560ef0d56d7ec78ec4f1cf76e0b924f85ef31d66ac44
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAX2501319
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T00:59:09Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7705356e405a084315c2560ef0d56d7ec78ec4f1cf76e0b924f85ef31d66ac44. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZTAX2501319.
      date published: 2026-07-18T00:59:09Z
    audio: I don't need your loving anymore
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.864
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.548
      additional property: Energy
        type: PropertyValue
        value: 0.688
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.051
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.213
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.421
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.537
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Huldra
  type: MusicAlbum
  date published: 2025-06-20
album: I wanna be so good to you
  type: MusicAlbum
  date published: 2025-07-03
album: Hope from High
  type: MusicAlbum
  date published: 2025-07-10