Sérgio Marques
type: MusicGroup
genre: gospel
genre: pentecostal
description: Mário Sérgio Quaresma Gonçalves Marques (born 25 February 1957) is a Portuguese lawyer and politician, who served as member of the Assembly of the Republic. He was the Regional Secretary of Parliament
popularity: 3
followers: 988
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7eca32409b57e429ba547bb98c2aa5ad5455001199c8ac26bdd10c9bdf0802c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c26ca8cd-93dd-4651-a3a2-bb913b525ab3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c26ca8cd-93dd-4651-a3a2-bb913b525ab3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c26ca8cd-93dd-4651-a3a2-bb913b525ab3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7eca32409b57e429ba547bb98c2aa5ad5455001199c8ac26bdd10c9bdf0802c4","name":"Sérgio Marques","registered_at":"2026-06-20T19:40:24Z","symbol":"NIM1695692","token_address":"0xe367592a16f08e3b84713569ddeb11b9e17cf50f","type":"artist","uuid":"c26ca8cd-93dd-4651-a3a2-bb913b525ab3"}
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 0x7eca32409b57e429ba547bb98c2aa5ad5455001199c8ac26bdd10c9bdf0802c4. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c26ca8cd-93dd-4651-a3a2-bb913b525ab3.json and https://artists.proofprofile.net/proofs/artist/c26ca8cd-93dd-4651-a3a2-bb913b525ab3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x7eca32409b57e429ba547bb98c2aa5ad5455001199c8ac26bdd10c9bdf0802c4","name":"Sérgio Marques","registered_at":"2026-06-20T19:40:24Z","symbol":"NIM1695692","token_address":"0xe367592a16f08e3b84713569ddeb11b9e17cf50f","type":"artist","uuid":"c26ca8cd-93dd-4651-a3a2-bb913b525ab3"}
album: Ele Virá
  type: MusicAlbum
  date published: 2019-12-01
album: Descanso
  type: MusicAlbum
  date published: 2021-12-14
album: Bondade de Deus
  type: MusicAlbum
  date published: 2023-10-17
album: Filho Sou Eu
  type: MusicAlbum
  date published: 2024-06-04