Negra Chavez
type: MusicGroup
genre: latin indie
popularity: 8
followers: 689
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe55e0b6da2fb557a68c849c88f6ba1f7f50ada0d819cd00e2e533ea6e4d8b39
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/e3feee4f-7b0e-4502-8199-ae8adf7b80cb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e3feee4f-7b0e-4502-8199-ae8adf7b80cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e3feee4f-7b0e-4502-8199-ae8adf7b80cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe55e0b6da2fb557a68c849c88f6ba1f7f50ada0d819cd00e2e533ea6e4d8b39","name":"Negra Chavez","registered_at":"2026-06-21T07:28:11Z","symbol":"NIM1862619","token_address":"0x9eb7e0246633a9e7af5cb9c3f0b646dbf34aa3a5","type":"artist","uuid":"e3feee4f-7b0e-4502-8199-ae8adf7b80cb"}
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 0xfe55e0b6da2fb557a68c849c88f6ba1f7f50ada0d819cd00e2e533ea6e4d8b39. 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/e3feee4f-7b0e-4502-8199-ae8adf7b80cb.json and https://artists.proofprofile.net/proofs/artist/e3feee4f-7b0e-4502-8199-ae8adf7b80cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0xfe55e0b6da2fb557a68c849c88f6ba1f7f50ada0d819cd00e2e533ea6e4d8b39","name":"Negra Chavez","registered_at":"2026-06-21T07:28:11Z","symbol":"NIM1862619","token_address":"0x9eb7e0246633a9e7af5cb9c3f0b646dbf34aa3a5","type":"artist","uuid":"e3feee4f-7b0e-4502-8199-ae8adf7b80cb"}
album: Domingo
  type: MusicAlbum
  date published: 2013-11-27
album: Avanzar
  type: MusicAlbum
  date published: 2017-05-31
album: Sin Mi
  type: MusicAlbum
  date published: 2017-12-01
album: Todo Esto
  type: MusicAlbum
  date published: 2018-09-10
album: Everything (Acoustic)
  type: MusicAlbum
  date published: 2019-02-14
album: El Tesoro
  type: MusicAlbum
  date published: 2019-05-10
album: Cuando Quieras
  type: MusicAlbum
  date published: 2019-08-15
album: El Me Habla
  type: MusicAlbum
  date published: 2020-04-10
album: Turn Your Lights Down Low
  type: MusicAlbum
  date published: 2021-05-28
album: Domingo Con las Pibas
  type: MusicAlbum
  date published: 2021-08-13
album: Cumbia Cualquiera
  type: MusicAlbum
  date published: 2021-09-24
album: Tu Ropa en Mi Placard
  type: MusicAlbum
  date published: 2022-01-25
album: Tu ropa en mi placard
  type: MusicAlbum
  date published: 2022-01-28
album: Tan Hoy
  type: MusicAlbum
  date published: 2022-08-05
album: Ida y Vuelta
  type: MusicAlbum
  date published: 2023-02-14
album: Ida y Vuelta
  type: MusicAlbum
  date published: 2023-02-14
album: Reflejo
  type: MusicAlbum
  date published: 2025-02-18
  track: Reflejo
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229000
    explicit: false
    by artist: Negra Chavez
    in album: Reflejo
      type: MusicAlbum
      date published: 2025-02-18
    genre: latin indie
    isrc code: QZGLM2540944
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T02:01:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x82cb45aa949eda131d8c741091587f78cdb31f82c6b6eeb432862f3ffe9a59d1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959088
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959088
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2540944
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T05:02:29Z
    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 0x82cb45aa949eda131d8c741091587f78cdb31f82c6b6eeb432862f3ffe9a59d1. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T05:02:29Z), 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/QZGLM2540944.
      date published: 2026-07-22T05:02:29Z
    audio: Reflejo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.984
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.683
      additional property: Energy
        type: PropertyValue
        value: 0.841
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.308
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.466
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.813
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Gritarle al Miedo
  type: MusicAlbum
  date published: 2025-03-07