Black Belt Sound System
type: MusicGroup
popularity: 7
followers: 609
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba5c1afe4a6e0ba4743e63d8eb66f1ecbe4fba62207f3191f2bc5de7c4d78349
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953843
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953843
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/003fcbd6-048d-4a14-96c6-a88103f75257.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/003fcbd6-048d-4a14-96c6-a88103f75257.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/003fcbd6-048d-4a14-96c6-a88103f75257
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:27:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xba5c1afe4a6e0ba4743e63d8eb66f1ecbe4fba62207f3191f2bc5de7c4d78349","name":"Black Belt Sound System","registered_at":"2026-06-15T13:48:08Z","symbol":"NIM0727363","token_address":"0x30fc5917b9b89ae5be79c95574b7d1387baf6c1a","type":"artist","uuid":"003fcbd6-048d-4a14-96c6-a88103f75257"}
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 0xba5c1afe4a6e0ba4743e63d8eb66f1ecbe4fba62207f3191f2bc5de7c4d78349. 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/003fcbd6-048d-4a14-96c6-a88103f75257.json and https://artists.proofprofile.net/proofs/artist/003fcbd6-048d-4a14-96c6-a88103f75257.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0xba5c1afe4a6e0ba4743e63d8eb66f1ecbe4fba62207f3191f2bc5de7c4d78349","name":"Black Belt Sound System","registered_at":"2026-06-15T13:48:08Z","symbol":"NIM0727363","token_address":"0x30fc5917b9b89ae5be79c95574b7d1387baf6c1a","type":"artist","uuid":"003fcbd6-048d-4a14-96c6-a88103f75257"}
album: Crianças de Concreto
  type: MusicAlbum
  date published: 2018-05-10
album: Armlock Sideral
  type: MusicAlbum
  date published: 2018-05-10
album: Mr. Berimbolo
  type: MusicAlbum
  date published: 2018-05-10
  track: Jiu-Jitsu Feeling
    type: MusicRecording
    duration: PT2M52S
    duration ms: 172747
    explicit: false
    by artist: Black Belt Sound System
    in album: Mr. Berimbolo
      type: MusicAlbum
      date published: 2018-05-10
    isrc code: QZ5AB1937880
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T10:55:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x549b2b798fd1982e37bfda037fbad2259f9a8cfbad4d0fadbbc11fbea4884c78
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958286
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958286
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1937880
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T12:43:37Z
    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 0x549b2b798fd1982e37bfda037fbad2259f9a8cfbad4d0fadbbc11fbea4884c78. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZ5AB1937880.
      date published: 2026-07-16T12:43:37Z
    audio: Jiu-Jitsu Feeling
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.199
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.45
      additional property: Energy
        type: PropertyValue
        value: 0.752
      additional property: Speechiness
        type: PropertyValue
        value: 0.11
      additional property: Acousticness
        type: PropertyValue
        value: 0.094
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.243
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.703
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.43
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Procedência Black Belt
  type: MusicAlbum
  date published: 2019-07-20