Perla Ferreira
type: MusicGroup
popularity: 2
followers: 78
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x27e7a827b754601374f4e29233caccdcff946dc0249991f79b359ec9044f1313
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953848
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953848
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01d50a27-abab-440e-bbfa-d5bee194a79a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01d50a27-abab-440e-bbfa-d5bee194a79a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/01d50a27-abab-440e-bbfa-d5bee194a79a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:54:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x27e7a827b754601374f4e29233caccdcff946dc0249991f79b359ec9044f1313","name":"Perla Ferreira","registered_at":"2026-06-15T14:08:24Z","symbol":"NIM0732205","token_address":"0x4f65b5a9ef62dc7feee3d1a18b9e394cf554f438","type":"artist","uuid":"01d50a27-abab-440e-bbfa-d5bee194a79a"}
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 0x27e7a827b754601374f4e29233caccdcff946dc0249991f79b359ec9044f1313. 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/01d50a27-abab-440e-bbfa-d5bee194a79a.json and https://artists.proofprofile.net/proofs/artist/01d50a27-abab-440e-bbfa-d5bee194a79a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x27e7a827b754601374f4e29233caccdcff946dc0249991f79b359ec9044f1313","name":"Perla Ferreira","registered_at":"2026-06-15T14:08:24Z","symbol":"NIM0732205","token_address":"0x4f65b5a9ef62dc7feee3d1a18b9e394cf554f438","type":"artist","uuid":"01d50a27-abab-440e-bbfa-d5bee194a79a"}
album: Filho
  type: MusicAlbum
  date published: 2022-12-15
album: Identidade
  type: MusicAlbum
  date published: 2023-07-28
album: Pra Te Adorar Eu Vivo
  type: MusicAlbum
  date published: 2023-08-11
  track: Pra Te Adorar Eu Vivo
    type: MusicRecording
    duration: PT5M27S
    duration ms: 327272
    explicit: false
    by artist: Perla Ferreira
    in album: Pra Te Adorar Eu Vivo
      type: MusicAlbum
      date published: 2023-08-11
    isrc code: QZNJY2327510
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T10:12:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3d0921a5ba4200aca29208c42290a66e60c3df6a64ceccd1fa205cf018a42824
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956790
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956790
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2327510
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T12:31:54Z
    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 0x3d0921a5ba4200aca29208c42290a66e60c3df6a64ceccd1fa205cf018a42824. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNJY2327510.
      date published: 2026-07-05T12:31:54Z
    audio: Pra Te Adorar Eu Vivo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.825
      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: 0.413
      additional property: Energy
        type: PropertyValue
        value: 0.265
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.794
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.056
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.342
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.606
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Quando o Amor Chega
  type: MusicAlbum
  date published: 2024-01-12
album: Canção de Amor
  type: MusicAlbum
  date published: 2024-02-27