Ras Kadhu
type: MusicGroup
genre: dub
genre: roots reggae
popularity: 5
followers: 523
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8e90dfdc0d88b6ed6574ac5058bfe4a3b7730618fa07eb400a1b8cead38430f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21c86420-76d8-4171-b2ae-9858db20b63a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21c86420-76d8-4171-b2ae-9858db20b63a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/21c86420-76d8-4171-b2ae-9858db20b63a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb8e90dfdc0d88b6ed6574ac5058bfe4a3b7730618fa07eb400a1b8cead38430f","name":"Ras Kadhu","registered_at":"2026-06-16T01:22:01Z","symbol":"NIM0892951","token_address":"0x1009c50406eafe33546a498795d8b404806a57e8","type":"artist","uuid":"21c86420-76d8-4171-b2ae-9858db20b63a"}
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 0xb8e90dfdc0d88b6ed6574ac5058bfe4a3b7730618fa07eb400a1b8cead38430f. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21c86420-76d8-4171-b2ae-9858db20b63a.json and https://artists.proofprofile.net/proofs/artist/21c86420-76d8-4171-b2ae-9858db20b63a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0xb8e90dfdc0d88b6ed6574ac5058bfe4a3b7730618fa07eb400a1b8cead38430f","name":"Ras Kadhu","registered_at":"2026-06-16T01:22:01Z","symbol":"NIM0892951","token_address":"0x1009c50406eafe33546a498795d8b404806a57e8","type":"artist","uuid":"21c86420-76d8-4171-b2ae-9858db20b63a"}
album: Cada Vez Mais Rasta
  type: MusicAlbum
  date published: 2021-02-18
album: Selassie I Vive
  type: MusicAlbum
  date published: 2021-09-17
album: Cultura Ancestral (Acústico)
  type: MusicAlbum
  date published: 2021-12-21
album: A Competição
  type: MusicAlbum
  date published: 2022-03-04
track: Jah Reina
  type: MusicRecording
  duration: PT4M14S
  duration ms: 254757
  explicit: false
  by artist: Família da Floresta
  by artist: Ras Kadhu
  by artist: Pedro Angi
  in album: Jah Reina
    type: MusicAlbum
    date published: 2024-10-25
  isrc code: BR67K2400007
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T17:59:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x811609507421ced581819f81dd0efda7ba4f69ac7574190d512f91505b7edc9d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR67K2400007
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x811609507421ced581819f81dd0efda7ba4f69ac7574190d512f91505b7edc9d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BR67K2400007 — a six-check JSON result.
    date published: 2026-07-02T03:55:08Z
  audio: Jah Reina
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.298
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.656
    additional property: Energy
      type: PropertyValue
      value: 0.54
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.246
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.138
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.555
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.667
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor