JC e Rafinha
type: MusicGroup
popularity: 3
followers: 79
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0dd16b854e448f64b2b429ab74e42fcc9b2158b4e3623e6302d3467084c40223
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0256bff8-dbd9-4490-95b0-bee9317edd3a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0256bff8-dbd9-4490-95b0-bee9317edd3a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0256bff8-dbd9-4490-95b0-bee9317edd3a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0dd16b854e448f64b2b429ab74e42fcc9b2158b4e3623e6302d3467084c40223","name":"JC e Rafinha","registered_at":"2026-06-15T14:21:42Z","symbol":"NIM0735380","token_address":"0xef6ffcc15aa8fd8fa776095a3cae2adf70a238a4","type":"artist","uuid":"0256bff8-dbd9-4490-95b0-bee9317edd3a"}
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 0x0dd16b854e448f64b2b429ab74e42fcc9b2158b4e3623e6302d3467084c40223. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0256bff8-dbd9-4490-95b0-bee9317edd3a.json and https://artists.proofprofile.net/proofs/artist/0256bff8-dbd9-4490-95b0-bee9317edd3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x0dd16b854e448f64b2b429ab74e42fcc9b2158b4e3623e6302d3467084c40223","name":"JC e Rafinha","registered_at":"2026-06-15T14:21:42Z","symbol":"NIM0735380","token_address":"0xef6ffcc15aa8fd8fa776095a3cae2adf70a238a4","type":"artist","uuid":"0256bff8-dbd9-4490-95b0-bee9317edd3a"}
album: Meu Amigo Leão
  type: MusicAlbum
  date published: 2021-10-08
album: Como Canta o JC
  type: MusicAlbum
  date published: 2022-09-09
album: A Alegria Está no Coração
  type: MusicAlbum
  date published: 2022-09-09
album: Os Animais
  type: MusicAlbum
  date published: 2022-09-16
album: Puro e Simples
  type: MusicAlbum
  date published: 2022-09-30
  track: Puro e Simples
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202250
    explicit: false
    by artist: JC e Rafinha
    in album: Puro e Simples
      type: MusicAlbum
      date published: 2022-09-30
    isrc code: BXE852200008
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:53:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6513880905b0a9870c0a2c1290672d055655afb2f66c51c7bd1012b8ea393054
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956790
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956790
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXE852200008
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T12:31:54Z
    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 0x6513880905b0a9870c0a2c1290672d055655afb2f66c51c7bd1012b8ea393054. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BXE852200008.
      date published: 2026-07-05T12:31:54Z
    audio: Puro e Simples
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.027
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.727
      additional property: Energy
        type: PropertyValue
        value: 0.488
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.251
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.414
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.65
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.719
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Homenzinho Torto + o Sabão
  type: MusicAlbum
  date published: 2022-09-30
album: Escreva uma Carta
  type: MusicAlbum
  date published: 2022-11-11
album: Meu Amigo Leão (Remix)
  type: MusicAlbum
  date published: 2022-11-18
album: Reggae For Kids
  type: MusicAlbum
  date published: 2023-05-30
album: Rock For Kids
  type: MusicAlbum
  date published: 2023-10-12