Bruce Marques
type: MusicGroup
genre: folk rock
popularity: 8
followers: 771
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e61c0ebbe3142e39251c7ce9b6aa77f988734394b25737b8b120a4724e419bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30cedad6-58de-43e3-8e1d-822a88bc4338.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30cedad6-58de-43e3-8e1d-822a88bc4338.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30cedad6-58de-43e3-8e1d-822a88bc4338
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2e61c0ebbe3142e39251c7ce9b6aa77f988734394b25737b8b120a4724e419bc","name":"Bruce Marques","registered_at":"2026-06-16T06:36:54Z","symbol":"NIM0968179","token_address":"0x035585c6f6f090518c31e0e118e71cd28990a50c","type":"artist","uuid":"30cedad6-58de-43e3-8e1d-822a88bc4338"}
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 0x2e61c0ebbe3142e39251c7ce9b6aa77f988734394b25737b8b120a4724e419bc. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30cedad6-58de-43e3-8e1d-822a88bc4338.json and https://artists.proofprofile.net/proofs/artist/30cedad6-58de-43e3-8e1d-822a88bc4338.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:04:35Z
  text: {"copyright_id":"0x2e61c0ebbe3142e39251c7ce9b6aa77f988734394b25737b8b120a4724e419bc","name":"Bruce Marques","registered_at":"2026-06-16T06:36:54Z","symbol":"NIM0968179","token_address":"0x035585c6f6f090518c31e0e118e71cd28990a50c","type":"artist","uuid":"30cedad6-58de-43e3-8e1d-822a88bc4338"}
album: Fraldas, Louças e Sessões Experimentais de Quarentena, Demo Ep
  type: MusicAlbum
  date published: 2020-05-15
album: Eu Prefiro Não Saber
  type: MusicAlbum
  date published: 2021-02-05
album: O Universo Conspirou Para a Vida Acontecer, e Aconteceu
  type: MusicAlbum
  date published: 2024-10-11