Marco Marin
type: MusicGroup
genre: sea shanties
description: Marco Marin (born 4 July 1963) is an Italian politician, dentist and fencer. He won a gold, two silvers and a bronze in sabre events at three Olympic Games between 1984 and 1992. He served as a Senato
popularity: 17
followers: 192
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x16da7c0c82e198968ebbca1e0cca90b7418699406f1856ad8a81439ff43f3eaf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953778
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953778
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b58b78d0-29d8-4fc9-b26b-abc2f2b434fa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b58b78d0-29d8-4fc9-b26b-abc2f2b434fa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b58b78d0-29d8-4fc9-b26b-abc2f2b434fa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x16da7c0c82e198968ebbca1e0cca90b7418699406f1856ad8a81439ff43f3eaf","name":"Marco Marin","registered_at":"2026-06-14T23:35:31Z","symbol":"NIM0612125","token_address":"0x82c2593e360e84fde19c67022762b901a3587aba","type":"artist","uuid":"b58b78d0-29d8-4fc9-b26b-abc2f2b434fa"}
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 0x16da7c0c82e198968ebbca1e0cca90b7418699406f1856ad8a81439ff43f3eaf. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b58b78d0-29d8-4fc9-b26b-abc2f2b434fa.json and https://artists.proofprofile.net/proofs/artist/b58b78d0-29d8-4fc9-b26b-abc2f2b434fa.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x16da7c0c82e198968ebbca1e0cca90b7418699406f1856ad8a81439ff43f3eaf","name":"Marco Marin","registered_at":"2026-06-14T23:35:31Z","symbol":"NIM0612125","token_address":"0x82c2593e360e84fde19c67022762b901a3587aba","type":"artist","uuid":"b58b78d0-29d8-4fc9-b26b-abc2f2b434fa"}