Rafa Castro
type: MusicGroup
genre: brazilian jazz
genre: nova mpb
popularity: 6
followers: 1406
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51819478e66b1c7a1992b9426db08d84eba957cccba86d33f3c0425f15c3f46c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1241bafb-5a24-4a8c-9618-4057066b6506.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1241bafb-5a24-4a8c-9618-4057066b6506.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1241bafb-5a24-4a8c-9618-4057066b6506
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x51819478e66b1c7a1992b9426db08d84eba957cccba86d33f3c0425f15c3f46c","name":"Rafa Castro","registered_at":"2026-06-15T19:55:29Z","symbol":"NIM0815036","token_address":"0x83664f55979e1525d3748c2b9620b805d4669484","type":"artist","uuid":"1241bafb-5a24-4a8c-9618-4057066b6506"}
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 0x51819478e66b1c7a1992b9426db08d84eba957cccba86d33f3c0425f15c3f46c. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1241bafb-5a24-4a8c-9618-4057066b6506.json and https://artists.proofprofile.net/proofs/artist/1241bafb-5a24-4a8c-9618-4057066b6506.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x51819478e66b1c7a1992b9426db08d84eba957cccba86d33f3c0425f15c3f46c","name":"Rafa Castro","registered_at":"2026-06-15T19:55:29Z","symbol":"NIM0815036","token_address":"0x83664f55979e1525d3748c2b9620b805d4669484","type":"artist","uuid":"1241bafb-5a24-4a8c-9618-4057066b6506"}
album: Teias
  type: MusicAlbum
  date published: 2014-10-08
  track: O Trem Azul
    type: MusicRecording
    duration: PT6M58S
    duration ms: 418693
    explicit: false
    by artist: Rafa Castro
    in album: Teias
      type: MusicAlbum
      date published: 2014-10-08
    genre: brazilian jazz
    genre: nova mpb
    isrc code: BRL0P1300049
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-08-01T03:01:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd2ecaec00a9902ed86d25dddadde720bb33cdf2dc466ee3e93b4ea963542f3a7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960500
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960500
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRL0P1300049
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-08-01T03:13:03Z
    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 0xd2ecaec00a9902ed86d25dddadde720bb33cdf2dc466ee3e93b4ea963542f3a7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BRL0P1300049.
      date published: 2026-08-01T03:13:03Z
    audio: O Trem Azul
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.087
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.458
      additional property: Energy
        type: PropertyValue
        value: 0.303
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.986
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.885
      additional property: Liveness
        type: PropertyValue
        value: 0.147
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.177
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.649
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Casulo (Instrumental)
  type: MusicAlbum
  date published: 2016-01-05
album: Fronteira
  type: MusicAlbum
  date published: 2017-09-12
album: Fronteira
  type: MusicAlbum
  date published: 2017-10-24
album: Cheiro de Mar
  type: MusicAlbum
  date published: 2020-04-03
album: Teletransportar
  type: MusicAlbum
  date published: 2020-04-10
album: Teletransportar - o Filme
  type: MusicAlbum
  date published: 2021-07-02
album: Rafa Castro no Estúdio Showlivre (Ao Vivo)
  type: MusicAlbum
  date published: 2023-05-10
track: Oración del Remanso
  type: MusicRecording
  duration: PT4M42S
  duration ms: 282378
  explicit: false
  by artist: Nicole Bunout
  by artist: Rafa Castro
  in album: Oración del Remanso
    type: MusicAlbum
    date published: 2022-07-08
  genre: latin-folk
  isrc code: ES71G2222992
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T11:19:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x53ba35087702d6bb2b6761e4f91faa25663cd349088ec02d6b8403a87ff29398
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2222992
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0x53ba35087702d6bb2b6761e4f91faa25663cd349088ec02d6b8403a87ff29398. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2222992.
    date published: 2026-07-02T03:30:09Z
  audio: Oración del Remanso
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 92.128
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
    additional property: Time Signature
    additional property: Danceability
    additional property: Energy
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.355

Energy
type: PropertyValue
value: 0.133

Speechiness
type: PropertyValue
value: 0.049

Acousticness
type: PropertyValue
value: 0.977

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.113

Valence (Positivity)
type: PropertyValue
value: 0.18

Loudness (dB)
type: PropertyValue
value: -18.882

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major