MC Juca
type: MusicGroup
popularity: 6
followers: 154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc11e2e18e0e22de763803327f8a9332b2ba0c974924e474eb2ee8efecaa5543b
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/07a068f6-94a2-4676-b6b6-927e4a03917c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/07a068f6-94a2-4676-b6b6-927e4a03917c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/07a068f6-94a2-4676-b6b6-927e4a03917c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc11e2e18e0e22de763803327f8a9332b2ba0c974924e474eb2ee8efecaa5543b","name":"MC Juca","registered_at":"2026-06-15T16:10:52Z","symbol":"NIM0761444","token_address":"0x83ae10804d15ccbfdcc7e8cdeda7cdcaf1e3658f","type":"artist","uuid":"07a068f6-94a2-4676-b6b6-927e4a03917c"}
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 0xc11e2e18e0e22de763803327f8a9332b2ba0c974924e474eb2ee8efecaa5543b. 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/07a068f6-94a2-4676-b6b6-927e4a03917c.json and https://artists.proofprofile.net/proofs/artist/07a068f6-94a2-4676-b6b6-927e4a03917c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0xc11e2e18e0e22de763803327f8a9332b2ba0c974924e474eb2ee8efecaa5543b","name":"MC Juca","registered_at":"2026-06-15T16:10:52Z","symbol":"NIM0761444","token_address":"0x83ae10804d15ccbfdcc7e8cdeda7cdcaf1e3658f","type":"artist","uuid":"07a068f6-94a2-4676-b6b6-927e4a03917c"}
album: Na Ponta da Praia
  type: MusicAlbum
  date published: 2018-09-12
album: Em Busca da Melhora
  type: MusicAlbum
  date published: 2020-11-10
album: Canetada de Ouro
  type: MusicAlbum
  date published: 2021-07-05
album: Pousa e Se Joga
  type: MusicAlbum
  date published: 2022-07-29
album: After Motel
  type: MusicAlbum
  date published: 2022-10-17
album: Mais um Dia
  type: MusicAlbum
  date published: 2022-11-28
album: Forte Abraço
  type: MusicAlbum
  date published: 2023-08-25
album: Lacosteira
  type: MusicAlbum
  date published: 2023-10-31
album: A Favela no Auge
  type: MusicAlbum
  date published: 2023-12-25
album: Golpe do Cupido
  type: MusicAlbum
  date published: 2024-02-09
album: Pagodin
  type: MusicAlbum
  date published: 2024-02-13
album: Tá Fácil
  type: MusicAlbum
  date published: 2024-04-22
album: Meia Noite
  type: MusicAlbum
  date published: 2024-07-01
album: Sentimentos
  type: MusicAlbum
  date published: 2024-12-16
  track: Sentimentos
    type: MusicRecording
    duration: PT2M13S
    duration ms: 133015
    explicit: true
    by artist: MC Juca
    in album: Sentimentos
      type: MusicAlbum
      date published: 2024-12-16
    isrc code: BXXB82400010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T06:30:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd07866a5001b641ba82b6522a0a7d2fad64c24c9f40aa2d30e2c1a67c445d7f4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956500
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956500
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXXB82400010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T13:55:21Z
    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 0xd07866a5001b641ba82b6522a0a7d2fad64c24c9f40aa2d30e2c1a67c445d7f4. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BXXB82400010.
      date published: 2026-07-03T13:55:21Z
    audio: Sentimentos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 83.852
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.846
      additional property: Energy
        type: PropertyValue
        value: 0.457
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.644
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.901
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.95
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor