Mauricio A S M Contreras
type: MusicGroup
popularity: 8
followers: 71
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47ac2546f2fc30c89115b5ab54443d95fb5913e2f2d16c57e4e75bcd3fb059d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1873fe0-45c5-4cb8-8828-ccfa7150dd6f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1873fe0-45c5-4cb8-8828-ccfa7150dd6f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e1873fe0-45c5-4cb8-8828-ccfa7150dd6f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x47ac2546f2fc30c89115b5ab54443d95fb5913e2f2d16c57e4e75bcd3fb059d1","name":"Mauricio A S M Contreras","registered_at":"2026-06-21T07:03:41Z","symbol":"NIM1852955","token_address":"0x84169cb259929ebd231a83998d3e0428f5e4e8b5","type":"artist","uuid":"e1873fe0-45c5-4cb8-8828-ccfa7150dd6f"}
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 0x47ac2546f2fc30c89115b5ab54443d95fb5913e2f2d16c57e4e75bcd3fb059d1. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1873fe0-45c5-4cb8-8828-ccfa7150dd6f.json and https://artists.proofprofile.net/proofs/artist/e1873fe0-45c5-4cb8-8828-ccfa7150dd6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0x47ac2546f2fc30c89115b5ab54443d95fb5913e2f2d16c57e4e75bcd3fb059d1","name":"Mauricio A S M Contreras","registered_at":"2026-06-21T07:03:41Z","symbol":"NIM1852955","token_address":"0x84169cb259929ebd231a83998d3e0428f5e4e8b5","type":"artist","uuid":"e1873fe0-45c5-4cb8-8828-ccfa7150dd6f"}