Grupo J.A.C
type: MusicGroup
popularity: 6
followers: 246
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1058c0d819386753b331dfb7e7f0bc81968ab65c284b98eb98cb6676d27a2ecd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0026bdd-c319-44c8-9470-c8e8f4af92e5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0026bdd-c319-44c8-9470-c8e8f4af92e5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d0026bdd-c319-44c8-9470-c8e8f4af92e5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1058c0d819386753b331dfb7e7f0bc81968ab65c284b98eb98cb6676d27a2ecd","name":"Grupo J.A.C","registered_at":"2026-06-21T00:30:17Z","symbol":"NIM1762569","token_address":"0x240c74ab6df00dd2c0310b9ca134b843f4d2af3f","type":"artist","uuid":"d0026bdd-c319-44c8-9470-c8e8f4af92e5"}
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 0x1058c0d819386753b331dfb7e7f0bc81968ab65c284b98eb98cb6676d27a2ecd. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0026bdd-c319-44c8-9470-c8e8f4af92e5.json and https://artists.proofprofile.net/proofs/artist/d0026bdd-c319-44c8-9470-c8e8f4af92e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x1058c0d819386753b331dfb7e7f0bc81968ab65c284b98eb98cb6676d27a2ecd","name":"Grupo J.A.C","registered_at":"2026-06-21T00:30:17Z","symbol":"NIM1762569","token_address":"0x240c74ab6df00dd2c0310b9ca134b843f4d2af3f","type":"artist","uuid":"d0026bdd-c319-44c8-9470-c8e8f4af92e5"}
album: O Preço da Vitória É a Eterna Tentativa
  type: MusicAlbum
  date published: 2006-07-12
  track: Click Rone
    type: MusicRecording
    duration: PT7M22S
    duration ms: 442710
    explicit: true
    by artist: Grupo J.A.C
    in album: O Preço da Vitória É a Eterna Tentativa
      type: MusicAlbum
      date published: 2006-07-12
    isrc code: BXO9E1800010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-29T07:12:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8a465ace503984a79cc6e449bea8e320a9c0a4fe06dd13a393371360db7372b9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXO9E1800010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0x8a465ace503984a79cc6e449bea8e320a9c0a4fe06dd13a393371360db7372b9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BXO9E1800010.
      date published: 2026-07-02T16:51:38Z
    audio: Click Rone
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 83.006
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.742
      additional property: Energy
        type: PropertyValue
        value: 0.74
      additional property: Speechiness
        type: PropertyValue
        value: 0.143
      additional property: Acousticness
        type: PropertyValue
        value: 0.51
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.791
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.221
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Rumo ao Topo
  type: MusicAlbum
  date published: 2012-03-25
album: Pegada da Rua
  type: MusicAlbum
  date published: 2018-10-03
album: Relíquia
  type: MusicAlbum
  date published: 2022-04-11
album: Cic (Ao Vivo)
  type: MusicAlbum
  date published: 2022-09-02