Marcelo Mattos
type: MusicGroup
description: Marcelo Mendonça de Mattos or simply Marcelo Mattos (born 10 February 1984) is a Brazilian former football defensive midfielder. He is known for his positioning, tight marking of the opposing player
popularity: 2
followers: 87
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1680c895e6221d7282a72552eaca96568e0512faf145031b4610d199ec78526e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3150eea-5c0b-49eb-b2cf-c2c0dd4f3828.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3150eea-5c0b-49eb-b2cf-c2c0dd4f3828.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d3150eea-5c0b-49eb-b2cf-c2c0dd4f3828
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1680c895e6221d7282a72552eaca96568e0512faf145031b4610d199ec78526e","name":"Marcelo Mattos","registered_at":"2026-06-21T01:39:20Z","symbol":"NIM1779578","token_address":"0x2d62b9489ee79b944cd27a7ed11e890e640278e6","type":"artist","uuid":"d3150eea-5c0b-49eb-b2cf-c2c0dd4f3828"}
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 0x1680c895e6221d7282a72552eaca96568e0512faf145031b4610d199ec78526e. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3150eea-5c0b-49eb-b2cf-c2c0dd4f3828.json and https://artists.proofprofile.net/proofs/artist/d3150eea-5c0b-49eb-b2cf-c2c0dd4f3828.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x1680c895e6221d7282a72552eaca96568e0512faf145031b4610d199ec78526e","name":"Marcelo Mattos","registered_at":"2026-06-21T01:39:20Z","symbol":"NIM1779578","token_address":"0x2d62b9489ee79b944cd27a7ed11e890e640278e6","type":"artist","uuid":"d3150eea-5c0b-49eb-b2cf-c2c0dd4f3828"}
album: Chama Na Pegada Do MM
  type: MusicAlbum
  date published: 2022-08-12
album: Piseiro E Paredão
  type: MusicAlbum
  date published: 2022-09-16
album: Atualizou De Novo, Na Pegada Do MM
  type: MusicAlbum
  date published: 2022-09-16
album: Brincou Com Meu Coração
  type: MusicAlbum
  date published: 2022-10-21
album: Desce Novinha
  type: MusicAlbum
  date published: 2023-02-03
album: Eita Forrozão
  type: MusicAlbum
  date published: 2023-05-12
album: Na Pegada Do MM
  type: MusicAlbum
  date published: 2023-10-20
album: Piseiro Do MM 2.0
  type: MusicAlbum
  date published: 2024-10-15
album: Piseiro Do MM
  type: MusicAlbum
  date published: 2025-02-20
album: Decidida
  type: MusicAlbum
  date published: 2025-08-01