Kaká Reis
type: MusicGroup
genre: emocore
popularity: 4
followers: 306
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xece46fd213e769d91bfd1cfa99ab778e8187e2130e332d803ea786cf0761a9d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80a1f928-7caf-412b-9fef-d7d35422cc18.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80a1f928-7caf-412b-9fef-d7d35422cc18.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/80a1f928-7caf-412b-9fef-d7d35422cc18
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xece46fd213e769d91bfd1cfa99ab778e8187e2130e332d803ea786cf0761a9d2","name":"Kaká Reis","registered_at":"2026-06-17T10:20:57Z","symbol":"NIM1365182","token_address":"0x47a5d63d6508b42fda741516a9a4a252c06c6832","type":"artist","uuid":"80a1f928-7caf-412b-9fef-d7d35422cc18"}
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 0xece46fd213e769d91bfd1cfa99ab778e8187e2130e332d803ea786cf0761a9d2. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80a1f928-7caf-412b-9fef-d7d35422cc18.json and https://artists.proofprofile.net/proofs/artist/80a1f928-7caf-412b-9fef-d7d35422cc18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xece46fd213e769d91bfd1cfa99ab778e8187e2130e332d803ea786cf0761a9d2","name":"Kaká Reis","registered_at":"2026-06-17T10:20:57Z","symbol":"NIM1365182","token_address":"0x47a5d63d6508b42fda741516a9a4a252c06c6832","type":"artist","uuid":"80a1f928-7caf-412b-9fef-d7d35422cc18"}
album: Sinais
  type: MusicAlbum
  date published: 2021-02-12
album: Sinais
  type: MusicAlbum
  date published: 2021-02-12
album: Paredes de Vidro
  type: MusicAlbum
  date published: 2021-03-26
album: Caminhos Tortos
  type: MusicAlbum
  date published: 2021-08-06
  track: Caminhos Tortos
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220236
    explicit: false
    by artist: Kaká Reis
    in album: Caminhos Tortos
      type: MusicAlbum
      date published: 2021-08-06
    genre: emocore
    isrc code: BRT6G1300001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T23:18:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2ced58d40f6c20352a5b375738e8489f9b5570eb52893fc89a82423e4eb39bcc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958796
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958796
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRT6G1300001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T02:19:24Z
    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 0x2ced58d40f6c20352a5b375738e8489f9b5570eb52893fc89a82423e4eb39bcc. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:19:24Z), 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/BRT6G1300001.
      date published: 2026-07-20T02:19:24Z
    audio: Caminhos Tortos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.982
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.605
      additional property: Energy
        type: PropertyValue
        value: 0.474
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.342
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.497
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.382
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Se Tudo Piorar
  type: MusicAlbum
  date published: 2023-03-31
album: DE NOVO (Dark Sessions)
  type: MusicAlbum
  date published: 2025-02-02