Marcos & Rodrigo Viola
type: MusicGroup
genre: agronejo
genre: sertanejo tradicional
popularity: 4
followers: 411
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f17568ef4a47d6215072549bd9839fd30574056ca565ffbc6ea11631eeea986
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/9973da63-ea2a-4521-b922-ae565bd6d408.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9973da63-ea2a-4521-b922-ae565bd6d408.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9973da63-ea2a-4521-b922-ae565bd6d408
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2f17568ef4a47d6215072549bd9839fd30574056ca565ffbc6ea11631eeea986","name":"Marcos & Rodrigo Viola","registered_at":"2026-06-17T19:09:30Z","symbol":"NIM1491227","token_address":"0x0f1a226471469cc3fc9098fbd2e2b05f00215f65","type":"artist","uuid":"9973da63-ea2a-4521-b922-ae565bd6d408"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f17568ef4a47d6215072549bd9839fd30574056ca565ffbc6ea11631eeea986. 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/9973da63-ea2a-4521-b922-ae565bd6d408.json and https://artists.proofprofile.net/proofs/artist/9973da63-ea2a-4521-b922-ae565bd6d408.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x2f17568ef4a47d6215072549bd9839fd30574056ca565ffbc6ea11631eeea986","name":"Marcos & Rodrigo Viola","registered_at":"2026-06-17T19:09:30Z","symbol":"NIM1491227","token_address":"0x0f1a226471469cc3fc9098fbd2e2b05f00215f65","type":"artist","uuid":"9973da63-ea2a-4521-b922-ae565bd6d408"}
album: Caneca Esmaltada
  type: MusicAlbum
  date published: 2019-07-29
album: Pressão Rural
  type: MusicAlbum
  date published: 2019-07-29
  track: Pressão Rural
    type: MusicRecording
    duration: PT2M26S
    duration ms: 146486
    explicit: false
    by artist: Marcos & Rodrigo Viola
    in album: Pressão Rural
      type: MusicAlbum
      date published: 2019-07-29
    genre: agronejo
    genre: sertanejo tradicional
    isrc code: BRUF41900003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T10:02:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x72b5482b0f8042b6f2132a4b8d0ff9b32892cf914f5d7715147d1c1f26791233
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUF41900003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b5482b0f8042b6f2132a4b8d0ff9b32892cf914f5d7715147d1c1f26791233. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRUF41900003.
      date published: 2026-07-03T19:59:51Z
    audio: Pressão Rural
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 111.062
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.8
      additional property: Energy
        type: PropertyValue
        value: 0.905
      additional property: Speechiness
        type: PropertyValue
        value: 0.135
      additional property: Acousticness
        type: PropertyValue
        value: 0.372
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.622
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.697
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.332
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major