NINA NU
type: MusicGroup
popularity: 3
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x86cde56da8838d6480d88f71e52d0f10e54d09d24f52a289b85793d3d53d2cc9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e356ad73-4de9-433a-a62f-b59fec8bd214.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e356ad73-4de9-433a-a62f-b59fec8bd214.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e356ad73-4de9-433a-a62f-b59fec8bd214
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x86cde56da8838d6480d88f71e52d0f10e54d09d24f52a289b85793d3d53d2cc9","name":"NINA NU","registered_at":"2026-06-21T07:20:12Z","symbol":"NIM1860168","token_address":"0x6be0d7383f7464f1c4a1d942f5835574fcfe3186","type":"artist","uuid":"e356ad73-4de9-433a-a62f-b59fec8bd214"}
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 0x86cde56da8838d6480d88f71e52d0f10e54d09d24f52a289b85793d3d53d2cc9. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e356ad73-4de9-433a-a62f-b59fec8bd214.json and https://artists.proofprofile.net/proofs/artist/e356ad73-4de9-433a-a62f-b59fec8bd214.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0x86cde56da8838d6480d88f71e52d0f10e54d09d24f52a289b85793d3d53d2cc9","name":"NINA NU","registered_at":"2026-06-21T07:20:12Z","symbol":"NIM1860168","token_address":"0x6be0d7383f7464f1c4a1d942f5835574fcfe3186","type":"artist","uuid":"e356ad73-4de9-433a-a62f-b59fec8bd214"}
album: QUE TRISTE
  type: MusicAlbum
  date published: 2025-04-29
album: TE ESPERE
  type: MusicAlbum
  date published: 2025-05-01
album: ALGO ESTA MAL
  type: MusicAlbum
  date published: 2025-05-07
  track: ALGO ESTA MAL
    type: MusicRecording
    duration: PT3M1S
    duration ms: 181818
    explicit: false
    by artist: NINA NU
    in album: ALGO ESTA MAL
      type: MusicAlbum
      date published: 2025-05-07
    isrc code: QZTV32505971
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T13:30:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa914ff38bae51f7ea33ea156de933f9b82d6978c90701e73acc6347d63ea8316
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTV32505971
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xa914ff38bae51f7ea33ea156de933f9b82d6978c90701e73acc6347d63ea8316. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTV32505971 — a six-check JSON result.
      date published: 2026-07-05T01:12:41Z
    audio: ALGO ESTA MAL
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.018
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.817
      additional property: Energy
        type: PropertyValue
        value: 0.454
      additional property: Speechiness
        type: PropertyValue
        value: 0.236
      additional property: Acousticness
        type: PropertyValue
        value: 0.663
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.357
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.703
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major