Nathália Abreu
type: MusicGroup
popularity: 4
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8420a7a66ae98454d0f8e9141d596018795a2fb39066bbefbe7eaa0c84b92857
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d50a02df-0a2a-436e-9d78-b1c624f9e11e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d50a02df-0a2a-436e-9d78-b1c624f9e11e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d50a02df-0a2a-436e-9d78-b1c624f9e11e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8420a7a66ae98454d0f8e9141d596018795a2fb39066bbefbe7eaa0c84b92857","name":"Nathália Abreu","registered_at":"2026-06-21T02:29:46Z","symbol":"NIM1791230","token_address":"0xe855f73236fcc060b1dc1538e103341b5cd948dd","type":"artist","uuid":"d50a02df-0a2a-436e-9d78-b1c624f9e11e"}
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 0x8420a7a66ae98454d0f8e9141d596018795a2fb39066bbefbe7eaa0c84b92857. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d50a02df-0a2a-436e-9d78-b1c624f9e11e.json and https://artists.proofprofile.net/proofs/artist/d50a02df-0a2a-436e-9d78-b1c624f9e11e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x8420a7a66ae98454d0f8e9141d596018795a2fb39066bbefbe7eaa0c84b92857","name":"Nathália Abreu","registered_at":"2026-06-21T02:29:46Z","symbol":"NIM1791230","token_address":"0xe855f73236fcc060b1dc1538e103341b5cd948dd","type":"artist","uuid":"d50a02df-0a2a-436e-9d78-b1c624f9e11e"}
album: O Exilado
  type: MusicAlbum
  date published: 2024-05-10
  track: O Exilado
    type: MusicRecording
    duration: PT4M56S
    duration ms: 296362
    explicit: false
    by artist: Nathália Abreu
    in album: O Exilado
      type: MusicAlbum
      date published: 2024-05-10
    isrc code: BRBRX2400015
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T18:41:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa2a84dd7d32e8c66e571845d4aff306e7e615e5f65ef313b296cb912d35854d9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958196
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958196
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRBRX2400015
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T21:44:21Z
    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 0xa2a84dd7d32e8c66e571845d4aff306e7e615e5f65ef313b296cb912d35854d9. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:44:21Z), 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/BRBRX2400015.
      date published: 2026-07-15T21:44:21Z
    audio: O Exilado
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.697
      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: 0.39
      additional property: Energy
        type: PropertyValue
        value: 0.236
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.958
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.095
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.108
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.717
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major