Arthur Valgueiro
type: MusicGroup
genre: forró
genre: piseiro
genre: seresta
popularity: 2
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd91dbcbf8deb00bab92f7b14fbab1a9451cafa4368c0482498fad150999b040a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/543d8425-4e8c-42de-86c3-4da17300cfd2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/543d8425-4e8c-42de-86c3-4da17300cfd2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/543d8425-4e8c-42de-86c3-4da17300cfd2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd91dbcbf8deb00bab92f7b14fbab1a9451cafa4368c0482498fad150999b040a","name":"Arthur Valgueiro","registered_at":"2026-06-16T18:53:37Z","symbol":"NIM1143958","token_address":"0x9bcd658fdd164c41668edfd524dcc291c2554ea7","type":"artist","uuid":"543d8425-4e8c-42de-86c3-4da17300cfd2"}
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 0xd91dbcbf8deb00bab92f7b14fbab1a9451cafa4368c0482498fad150999b040a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/543d8425-4e8c-42de-86c3-4da17300cfd2.json and https://artists.proofprofile.net/proofs/artist/543d8425-4e8c-42de-86c3-4da17300cfd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xd91dbcbf8deb00bab92f7b14fbab1a9451cafa4368c0482498fad150999b040a","name":"Arthur Valgueiro","registered_at":"2026-06-16T18:53:37Z","symbol":"NIM1143958","token_address":"0x9bcd658fdd164c41668edfd524dcc291c2554ea7","type":"artist","uuid":"543d8425-4e8c-42de-86c3-4da17300cfd2"}
album: Vaqueiro Apaixonado
  type: MusicAlbum
  date published: 2023-12-22
  track: Que Pancada de Morena
    type: MusicRecording
    duration: PT2M25S
    duration ms: 145037
    explicit: false
    by artist: Arthur Valgueiro
    in album: Vaqueiro Apaixonado
      type: MusicAlbum
      date published: 2023-12-22
    genre: forró
    genre: piseiro
    genre: seresta
    isrc code: BCSUV2304829
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T18:32:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdd706f3add404eaad12378a6e2a9f7741499ab0e8b5fb200d0eaba4dc6f67b53
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958924
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958924
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCSUV2304829
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:34:17Z
    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 0xdd706f3add404eaad12378a6e2a9f7741499ab0e8b5fb200d0eaba4dc6f67b53. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:34:17Z), 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/BCSUV2304829.
      date published: 2026-07-20T21:34:17Z
    audio: Que Pancada de Morena
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.01
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.515
      additional property: Energy
        type: PropertyValue
        value: 0.838
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.467
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.96
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.634
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Pronto e Preparado
  type: MusicAlbum
  date published: 2024-03-08