H. Villa Lobos
type: MusicGroup
popularity: 5
followers: 242
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9e40b91e3c80cf3ad0b8f375e89deb1532de435c5ba207d8a662b1c596b01778
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93a9703b-f320-4350-9fdf-52c1bc1cc447.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93a9703b-f320-4350-9fdf-52c1bc1cc447.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/93a9703b-f320-4350-9fdf-52c1bc1cc447
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9e40b91e3c80cf3ad0b8f375e89deb1532de435c5ba207d8a662b1c596b01778","name":"H. Villa Lobos","registered_at":"2026-06-17T17:12:09Z","symbol":"NIM1463218","token_address":"0x70d8902fec322a519f48152ef581527b028e96ac","type":"artist","uuid":"93a9703b-f320-4350-9fdf-52c1bc1cc447"}
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 0x9e40b91e3c80cf3ad0b8f375e89deb1532de435c5ba207d8a662b1c596b01778. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93a9703b-f320-4350-9fdf-52c1bc1cc447.json and https://artists.proofprofile.net/proofs/artist/93a9703b-f320-4350-9fdf-52c1bc1cc447.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x9e40b91e3c80cf3ad0b8f375e89deb1532de435c5ba207d8a662b1c596b01778","name":"H. Villa Lobos","registered_at":"2026-06-17T17:12:09Z","symbol":"NIM1463218","token_address":"0x70d8902fec322a519f48152ef581527b028e96ac","type":"artist","uuid":"93a9703b-f320-4350-9fdf-52c1bc1cc447"}
album: Canções, Serestas e Modinhas (Villa Lobos)
  type: MusicAlbum
  date published: 2011-02-10
  track: O Trem do Caipira
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201131
    explicit: false
    by artist: H. Villa Lobos
    in album: Canções, Serestas e Modinhas (Villa Lobos)
      type: MusicAlbum
      date published: 2011-02-10
    isrc code: BRTMP1101029
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T19:21:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xda9ab84444d63c060f09952d183962ef8207de86708013309c58461fa20c022a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958448
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958448
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTMP1101029
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:49:21Z
    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 0xda9ab84444d63c060f09952d183962ef8207de86708013309c58461fa20c022a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BRTMP1101029.
      date published: 2026-07-17T19:49:21Z
    audio: O Trem do Caipira
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 60.948
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.351
      additional property: Energy
        type: PropertyValue
        value: 0.143
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.946
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.028
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.125
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.584
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major