Guilherme Marques
type: MusicGroup
genre: gospel
genre: pentecostal
description: Guilherme Luiz Marques (born June 26, 1969) is a Brazilian retired male beach volleyball player who won the gold medal at the 1997 World Championships in Los Angeles, California, partnering with Roger
popularity: 15
followers: 9090
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91ea97902be6f221882f8c7f8912b748bca8ab379f2846c70928199723b8f37f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/da006582-8abd-414d-abf5-6a9050f132b5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/da006582-8abd-414d-abf5-6a9050f132b5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/da006582-8abd-414d-abf5-6a9050f132b5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x91ea97902be6f221882f8c7f8912b748bca8ab379f2846c70928199723b8f37f","name":"Guilherme Marques","registered_at":"2026-06-15T03:26:40Z","symbol":"NIM0667357","token_address":"0xd4c00a1f160c36fd61ac05fb038407f330de805c","type":"artist","uuid":"da006582-8abd-414d-abf5-6a9050f132b5"}
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 0x91ea97902be6f221882f8c7f8912b748bca8ab379f2846c70928199723b8f37f. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da006582-8abd-414d-abf5-6a9050f132b5.json and https://artists.proofprofile.net/proofs/artist/da006582-8abd-414d-abf5-6a9050f132b5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T12:56:12Z
  text: {"copyright_id":"0x91ea97902be6f221882f8c7f8912b748bca8ab379f2846c70928199723b8f37f","name":"Guilherme Marques","registered_at":"2026-06-15T03:26:40Z","symbol":"NIM0667357","token_address":"0xd4c00a1f160c36fd61ac05fb038407f330de805c","type":"artist","uuid":"da006582-8abd-414d-abf5-6a9050f132b5"}
album: Volta a Orar
  type: MusicAlbum
  date published: 2021-09-06
album: Acústico, Vol. 1
  type: MusicAlbum
  date published: 2023-09-26
album: Guilherme Marques, Vol. 1
  type: MusicAlbum
  date published: 2023-12-21
album: Acústico, Vol. 2
  type: MusicAlbum
  date published: 2023-12-21
album: Acústico, Vol. 2
  type: MusicAlbum
  date published: 2024-06-18