Lacerda Canta
type: MusicGroup
popularity: 2
followers: 480
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x095b6487ca136c46b38bdda7d588b5067e2fc47d67531b299cfa3523b4389ca3
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/f8d6b0ba-76d7-4006-b137-e2153b841fb2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8d6b0ba-76d7-4006-b137-e2153b841fb2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8d6b0ba-76d7-4006-b137-e2153b841fb2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x095b6487ca136c46b38bdda7d588b5067e2fc47d67531b299cfa3523b4389ca3","name":"Lacerda Canta","registered_at":"2026-06-21T16:10:07Z","symbol":"NIM1969210","token_address":"0x3d5108e8f9486638d3c5eec89daf62b1cfc16321","type":"artist","uuid":"f8d6b0ba-76d7-4006-b137-e2153b841fb2"}
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 0x095b6487ca136c46b38bdda7d588b5067e2fc47d67531b299cfa3523b4389ca3. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8d6b0ba-76d7-4006-b137-e2153b841fb2.json and https://artists.proofprofile.net/proofs/artist/f8d6b0ba-76d7-4006-b137-e2153b841fb2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x095b6487ca136c46b38bdda7d588b5067e2fc47d67531b299cfa3523b4389ca3","name":"Lacerda Canta","registered_at":"2026-06-21T16:10:07Z","symbol":"NIM1969210","token_address":"0x3d5108e8f9486638d3c5eec89daf62b1cfc16321","type":"artist","uuid":"f8d6b0ba-76d7-4006-b137-e2153b841fb2"}
album: Nada Demais
  type: MusicAlbum
  date published: 2024-04-12
album: Que Você Viva Pra Sempre
  type: MusicAlbum
  date published: 2024-05-17
  track: Que Você Viva Pra Sempre
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201586
    explicit: false
    by artist: Lacerda Canta
    in album: Que Você Viva Pra Sempre
      type: MusicAlbum
      date published: 2024-05-17
    isrc code: BREHY2400016
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T03:25:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7800e319f1a4002664ddd9504223d1ac525bf59122d5f565b7bec0646c4c25c9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956891
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956891
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BREHY2400016
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:16:32Z
    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 0x7800e319f1a4002664ddd9504223d1ac525bf59122d5f565b7bec0646c4c25c9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BREHY2400016.
      date published: 2026-07-06T07:16:32Z
    audio: Que Você Viva Pra Sempre
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.613
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.668
      additional property: Energy
        type: PropertyValue
        value: 0.609
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.161
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.258
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.686
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.499
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Clareza
  type: MusicAlbum
  date published: 2024-07-05
album: Pena
  type: MusicAlbum
  date published: 2024-09-06