Niña Matcha
type: MusicGroup
popularity: 25
followers: 2558
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe2460535f1876275f1de43a7e649d0bf185697400b2e24675bebac7b5d4ea15
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9576f2e9-239f-436a-9b54-3d5022ae4b8f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9576f2e9-239f-436a-9b54-3d5022ae4b8f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9576f2e9-239f-436a-9b54-3d5022ae4b8f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbe2460535f1876275f1de43a7e649d0bf185697400b2e24675bebac7b5d4ea15","name":"Niña Matcha","registered_at":"2026-06-12T04:57:48Z","symbol":"NIM0193630","token_address":"0xa2e9d522a6121d4d6930a40ba35fa47dca84cb79","type":"artist","uuid":"9576f2e9-239f-436a-9b54-3d5022ae4b8f"}
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 0xbe2460535f1876275f1de43a7e649d0bf185697400b2e24675bebac7b5d4ea15. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9576f2e9-239f-436a-9b54-3d5022ae4b8f.json and https://artists.proofprofile.net/proofs/artist/9576f2e9-239f-436a-9b54-3d5022ae4b8f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xbe2460535f1876275f1de43a7e649d0bf185697400b2e24675bebac7b5d4ea15","name":"Niña Matcha","registered_at":"2026-06-12T04:57:48Z","symbol":"NIM0193630","token_address":"0xa2e9d522a6121d4d6930a40ba35fa47dca84cb79","type":"artist","uuid":"9576f2e9-239f-436a-9b54-3d5022ae4b8f"}
album: Rosones (Cover)
  type: MusicAlbum
  date published: 2024-12-27
album: Lokerona
  type: MusicAlbum
  date published: 2025-03-28
album: Fvkin Touch
  type: MusicAlbum
  date published: 2025-04-18
album: EMPODERADA
  type: MusicAlbum
  date published: 2025-08-03
  track: EMPODERADA - Instrumental
    type: MusicRecording
    duration: PT2M3S
    duration ms: 123249
    explicit: false
    by artist: Niña Matcha
    in album: EMPODERADA
      type: MusicAlbum
      date published: 2025-08-03
    isrc code: QZWFR2597573
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T13:21:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x77511985905991a5d9aa4dc652ff79c41f9e243f4cc1c2510ba5ab55d2b969e3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958897
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958897
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFR2597573
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T16:22:55Z
    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 0x77511985905991a5d9aa4dc652ff79c41f9e243f4cc1c2510ba5ab55d2b969e3. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:22:55Z), 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/QZWFR2597573.
      date published: 2026-07-20T16:22:55Z
    audio: EMPODERADA - Instrumental
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 154.385
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.574
      additional property: Energy
        type: PropertyValue
        value: 0.652
      additional property: Speechiness
        type: PropertyValue
        value: 0.375
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.89
      additional property: Liveness
        type: PropertyValue
        value: 0.067
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.567
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.47
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major