Igor Vianna
type: MusicGroup
genre: samba
popularity: 2
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc31a0b061ede14b3ed20759160bf3eb7406f15e02e829e810d345bc1c114a8e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40f9de40-237e-41b2-aa07-4cc3d3814cd9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/40f9de40-237e-41b2-aa07-4cc3d3814cd9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/40f9de40-237e-41b2-aa07-4cc3d3814cd9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc31a0b061ede14b3ed20759160bf3eb7406f15e02e829e810d345bc1c114a8e5","name":"Igor Vianna","registered_at":"2026-06-16T12:17:04Z","symbol":"NIM1049344","token_address":"0xf95e2b84c5c3ed6dd8954b52d9f423b7fc26d906","type":"artist","uuid":"40f9de40-237e-41b2-aa07-4cc3d3814cd9"}
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 0xc31a0b061ede14b3ed20759160bf3eb7406f15e02e829e810d345bc1c114a8e5. 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/40f9de40-237e-41b2-aa07-4cc3d3814cd9.json and https://artists.proofprofile.net/proofs/artist/40f9de40-237e-41b2-aa07-4cc3d3814cd9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc31a0b061ede14b3ed20759160bf3eb7406f15e02e829e810d345bc1c114a8e5","name":"Igor Vianna","registered_at":"2026-06-16T12:17:04Z","symbol":"NIM1049344","token_address":"0xf95e2b84c5c3ed6dd8954b52d9f423b7fc26d906","type":"artist","uuid":"40f9de40-237e-41b2-aa07-4cc3d3814cd9"}
album: Acadêmicos de Gravataí - 2024: A Trupe da Onça Negra Apresenta : No Palco da Fantasia Entra em Cena a Commedia Dell'arte
  type: MusicAlbum
  date published: 2024-01-23
album: Gravatai 2025 - Paraíso Nordestino - Um repente encantado de um povo arretado
  type: MusicAlbum
  date published: 2024-11-08