Leo Marques
type: MusicGroup
genre: arrocha
genre: brega
genre: forró
genre: piseiro
genre: seresta
popularity: 14
followers: 893
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xda253e5d145782d00d2a485c3d82735c9550ee255e9090d8df59a311da20988e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e80fe5da-19ca-4449-a69e-0adaaab23373.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e80fe5da-19ca-4449-a69e-0adaaab23373.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e80fe5da-19ca-4449-a69e-0adaaab23373
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xda253e5d145782d00d2a485c3d82735c9550ee255e9090d8df59a311da20988e","name":"Leo Marques","registered_at":"2026-06-15T04:59:58Z","symbol":"NIM0689631","token_address":"0x1491154b7c45a9220e259adb38ca0f021d4b8cae","type":"artist","uuid":"e80fe5da-19ca-4449-a69e-0adaaab23373"}
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 0xda253e5d145782d00d2a485c3d82735c9550ee255e9090d8df59a311da20988e. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e80fe5da-19ca-4449-a69e-0adaaab23373.json and https://artists.proofprofile.net/proofs/artist/e80fe5da-19ca-4449-a69e-0adaaab23373.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0xda253e5d145782d00d2a485c3d82735c9550ee255e9090d8df59a311da20988e","name":"Leo Marques","registered_at":"2026-06-15T04:59:58Z","symbol":"NIM0689631","token_address":"0x1491154b7c45a9220e259adb38ca0f021d4b8cae","type":"artist","uuid":"e80fe5da-19ca-4449-a69e-0adaaab23373"}
album: Saudades da Porra
  type: MusicAlbum
  date published: 2022-04-01
album: Não Vou Errar
  type: MusicAlbum
  date published: 2023-04-07
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  type: MusicAlbum
  date published: 2023-05-05
album: Vibezinha
  type: MusicAlbum
  date published: 2023-12-08
album: Grudinho
  type: MusicAlbum
  date published: 2025-05-02
album: Escurin
  type: MusicAlbum
  date published: 2025-05-23
album: Molhadin
  type: MusicAlbum
  date published: 2025-08-08