Leandro Cunha
type: MusicGroup
genre: gospel
genre: pentecostal
description: Leandro Leme da Cunha (born 13 October 1980) is a male judoka from Brazil. He won the gold medal in the Half-lightweight division (66 kg) at the 2011 Pan American Games in Guadalajara, Mexico and the
popularity: 5
followers: 189
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02dba80031fa09a883c51fb1754edde6ca804715460fb127dd46a939bc0b89ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14fc957a-23ba-4e81-a675-33fb956e61e5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14fc957a-23ba-4e81-a675-33fb956e61e5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/14fc957a-23ba-4e81-a675-33fb956e61e5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x02dba80031fa09a883c51fb1754edde6ca804715460fb127dd46a939bc0b89ee","name":"Leandro Cunha","registered_at":"2026-06-15T20:52:09Z","symbol":"NIM0828547","token_address":"0x0a5f036b24e0b855192575f5c5115ccdeb0986f8","type":"artist","uuid":"14fc957a-23ba-4e81-a675-33fb956e61e5"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02dba80031fa09a883c51fb1754edde6ca804715460fb127dd46a939bc0b89ee. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14fc957a-23ba-4e81-a675-33fb956e61e5.json and https://artists.proofprofile.net/proofs/artist/14fc957a-23ba-4e81-a675-33fb956e61e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:05:05Z
  text: {"copyright_id":"0x02dba80031fa09a883c51fb1754edde6ca804715460fb127dd46a939bc0b89ee","name":"Leandro Cunha","registered_at":"2026-06-15T20:52:09Z","symbol":"NIM0828547","token_address":"0x0a5f036b24e0b855192575f5c5115ccdeb0986f8","type":"artist","uuid":"14fc957a-23ba-4e81-a675-33fb956e61e5"}