Os Tukuba
type: MusicGroup
genre: afro house
genre: kuduro
popularity: 18
followers: 19855
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x59948720aeaeba30145f3c99d19850ec1eb111b9fd533052e31b45a0156cd5cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953592
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953592
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03852f8f-b298-474b-8a0a-4798fa7688b3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03852f8f-b298-474b-8a0a-4798fa7688b3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/03852f8f-b298-474b-8a0a-4798fa7688b3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T05:36:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x59948720aeaeba30145f3c99d19850ec1eb111b9fd533052e31b45a0156cd5cb","name":"Os Tukuba","registered_at":"2026-06-14T04:47:30Z","symbol":"NIM0343093","token_address":"0x4018e62574780368e86ecff27fd07672e79da884","type":"artist","uuid":"03852f8f-b298-474b-8a0a-4798fa7688b3"}
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 0x59948720aeaeba30145f3c99d19850ec1eb111b9fd533052e31b45a0156cd5cb. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03852f8f-b298-474b-8a0a-4798fa7688b3.json and https://artists.proofprofile.net/proofs/artist/03852f8f-b298-474b-8a0a-4798fa7688b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T05:36:59Z
  text: {"copyright_id":"0x59948720aeaeba30145f3c99d19850ec1eb111b9fd533052e31b45a0156cd5cb","name":"Os Tukuba","registered_at":"2026-06-14T04:47:30Z","symbol":"NIM0343093","token_address":"0x4018e62574780368e86ecff27fd07672e79da884","type":"artist","uuid":"03852f8f-b298-474b-8a0a-4798fa7688b3"}
album: Linguagem Zaca
  type: MusicAlbum
  date published: 2023-05-25
album: Barriga do Sidônio
  type: MusicAlbum
  date published: 2023-09-25
album: Hino Nacional
  type: MusicAlbum
  date published: 2023-11-30
  track: Hino Nacional
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163160
    explicit: false
    by artist: Os Tukuba
    in album: Hino Nacional
      type: MusicAlbum
      date published: 2023-11-30
    genre: afro house
    genre: kuduro
    isrc code: DGA0P2355987
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T20:00:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x98724d6e436a4655da706b5bcded5671341379603d644e9d91e858089fbbbffe
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2355987
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x98724d6e436a4655da706b5bcded5671341379603d644e9d91e858089fbbbffe. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DGA0P2355987.
      date published: 2026-07-06T01:25:57Z
    audio: Hino Nacional
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 146.814
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.834
      additional property: Energy
        type: PropertyValue
        value: 0.704
      additional property: Speechiness
        type: PropertyValue
        value: 0.371
      additional property: Acousticness
        type: PropertyValue
        value: 0.028
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.169
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.775
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.987
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Panela de Funge
  type: MusicAlbum
  date published: 2025-01-02
album: Petróleo
  type: MusicAlbum
  date published: 2025-04-09
album: A Zerinha
  type: MusicAlbum
  date published: 2025-07-22