LeBruce
type: MusicGroup
popularity: 4
followers: 279
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb343321a9bb00a4db53585a3dad57c44480714a234ac50d89e8af177021f83c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8957705-7a13-4730-88ca-08889a76d36f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8957705-7a13-4730-88ca-08889a76d36f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8957705-7a13-4730-88ca-08889a76d36f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
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 0xb343321a9bb00a4db53585a3dad57c44480714a234ac50d89e8af177021f83c6. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8957705-7a13-4730-88ca-08889a76d36f.json and https://artists.proofprofile.net/proofs/artist/f8957705-7a13-4730-88ca-08889a76d36f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
album: Clássico Grenal
  type: MusicAlbum
  date published: 2020-12-21
album: Dance Seu Tango
  type: MusicAlbum
  date published: 2021-02-12
album: O Soneto de um Qualquer Sozinho
  type: MusicAlbum
  date published: 2021-09-12
album: +1 Vez
  type: MusicAlbum
  date published: 2022-02-12
album: Não Existe Mais Amor
  type: MusicAlbum
  date published: 2022-05-12
album: O Rei da Solidão
  type: MusicAlbum
  date published: 2022-09-12
album: Lagrimas de Nescafé
  type: MusicAlbum
  date published: 2023-02-21
album: Concreto
  type: MusicAlbum
  date published: 2023-09-29
album: Herói de Plástico
  type: MusicAlbum
  date published: 2024-11-29
album: Um Outro Alguém
  type: MusicAlbum
  date published: 2025-02-16
album: Canção Desastrada
  type: MusicAlbum
  date published: 2025-03-14
  track: Canção Desastrada
    type: MusicRecording
    duration: PT3M32S
    duration ms: 212000
    explicit: false
    by artist: LeBruce
    in album: Canção Desastrada
      type: MusicAlbum
      date published: 2025-03-14
    isrc code: QZGLM2543803
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T12:24:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcfc64f7d65c245a6724a97e781a6e002aed1e2db2afe7cea643e38cbf794b58d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959128
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959128
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2543803
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T15:27:03Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc64f7d65c245a6724a97e781a6e002aed1e2db2afe7cea643e38cbf794b58d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:27:03Z), 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/QZGLM2543803.
      date published: 2026-07-22T15:27:03Z
    audio: Canção Desastrada
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.044
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.573
      additional property: Energy
        type: PropertyValue
        value: 0.413
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.048
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.382
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.388
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.661
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Mil Fantasmas
  type: MusicAlbum
  date published: 2025-05-30