Gustavo Cruz
type: MusicGroup
description: Gustavo Cruz (born 21 January 1966) is a former Nicaraguan boxer. He competed in the men's bantamweight event at the 1984 Summer Olympics. At the 1984 Summer Olympics, he lost to Star Zulu of Zambia.
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74ee9e292af3f55b2579744b00c88f499dad12bb0b468d3a39a6f5b2b3c24019
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb39a5ea-c75b-4df9-8d94-f9af1a8e6c19.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb39a5ea-c75b-4df9-8d94-f9af1a8e6c19.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bb39a5ea-c75b-4df9-8d94-f9af1a8e6c19
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x74ee9e292af3f55b2579744b00c88f499dad12bb0b468d3a39a6f5b2b3c24019","name":"Gustavo Cruz","registered_at":"2026-06-20T17:05:56Z","symbol":"NIM1661068","token_address":"0xcbf01c17e5f803471a0c60aecc3853889e20c0ab","type":"artist","uuid":"bb39a5ea-c75b-4df9-8d94-f9af1a8e6c19"}
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 0x74ee9e292af3f55b2579744b00c88f499dad12bb0b468d3a39a6f5b2b3c24019. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb39a5ea-c75b-4df9-8d94-f9af1a8e6c19.json and https://artists.proofprofile.net/proofs/artist/bb39a5ea-c75b-4df9-8d94-f9af1a8e6c19.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x74ee9e292af3f55b2579744b00c88f499dad12bb0b468d3a39a6f5b2b3c24019","name":"Gustavo Cruz","registered_at":"2026-06-20T17:05:56Z","symbol":"NIM1661068","token_address":"0xcbf01c17e5f803471a0c60aecc3853889e20c0ab","type":"artist","uuid":"bb39a5ea-c75b-4df9-8d94-f9af1a8e6c19"}