Léo e Dudu
type: MusicGroup
popularity: 6
followers: 383
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf8092e4e06de065bec3c40c5d69bff8daf90376f402d1325126c6a61502cf5b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0dc602cd-dfa5-4ea9-8cb6-bf4a3f80af0c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0dc602cd-dfa5-4ea9-8cb6-bf4a3f80af0c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0dc602cd-dfa5-4ea9-8cb6-bf4a3f80af0c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdf8092e4e06de065bec3c40c5d69bff8daf90376f402d1325126c6a61502cf5b","name":"Léo e Dudu","registered_at":"2026-06-15T18:19:42Z","symbol":"NIM0792189","token_address":"0x901359de43e6904c17c07020c50156851d0dcc90","type":"artist","uuid":"0dc602cd-dfa5-4ea9-8cb6-bf4a3f80af0c"}
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 0xdf8092e4e06de065bec3c40c5d69bff8daf90376f402d1325126c6a61502cf5b. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0dc602cd-dfa5-4ea9-8cb6-bf4a3f80af0c.json and https://artists.proofprofile.net/proofs/artist/0dc602cd-dfa5-4ea9-8cb6-bf4a3f80af0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xdf8092e4e06de065bec3c40c5d69bff8daf90376f402d1325126c6a61502cf5b","name":"Léo e Dudu","registered_at":"2026-06-15T18:19:42Z","symbol":"NIM0792189","token_address":"0x901359de43e6904c17c07020c50156851d0dcc90","type":"artist","uuid":"0dc602cd-dfa5-4ea9-8cb6-bf4a3f80af0c"}
album: Diferenciada
  type: MusicAlbum
  date published: 2019-10-17
album: Acertei na Loteria (Ao Vivo)
  type: MusicAlbum
  date published: 2022-11-18
album: Preferia a Gente (Ao Vivo)
  type: MusicAlbum
  date published: 2024-04-19
album: Bora Bb! (Ao Vivo)
  type: MusicAlbum
  date published: 2024-05-31