Marcos Vianna
type: MusicGroup
genre: brazilian bass
genre: g-house
popularity: 3
followers: 246
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x853682076eaaf1bb262bf1c9cb05c06e197a8babf8a6dd61bbedaa89e92295b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9c9c607-50da-415f-a786-9db7559f8e0c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9c9c607-50da-415f-a786-9db7559f8e0c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b9c9c607-50da-415f-a786-9db7559f8e0c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x853682076eaaf1bb262bf1c9cb05c06e197a8babf8a6dd61bbedaa89e92295b9","name":"Marcos Vianna","registered_at":"2026-06-20T16:26:04Z","symbol":"NIM1654507","token_address":"0xfdb0c397958c3a1008163e544d5438e4769ca47c","type":"artist","uuid":"b9c9c607-50da-415f-a786-9db7559f8e0c"}
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 0x853682076eaaf1bb262bf1c9cb05c06e197a8babf8a6dd61bbedaa89e92295b9. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9c9c607-50da-415f-a786-9db7559f8e0c.json and https://artists.proofprofile.net/proofs/artist/b9c9c607-50da-415f-a786-9db7559f8e0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:15:05Z
  text: {"copyright_id":"0x853682076eaaf1bb262bf1c9cb05c06e197a8babf8a6dd61bbedaa89e92295b9","name":"Marcos Vianna","registered_at":"2026-06-20T16:26:04Z","symbol":"NIM1654507","token_address":"0xfdb0c397958c3a1008163e544d5438e4769ca47c","type":"artist","uuid":"b9c9c607-50da-415f-a786-9db7559f8e0c"}
album: Groove N' Bossa
  type: MusicAlbum
  date published: 2008-05-05