Systems And Methods For Using A Block Chain To Certify The Existence, Integrity, And/or Ownership Of A File Or Communication

  • Published: Jun 13, 2017
  • Earliest Priority: Jan 26 2016
  • Family: 3
  • Cited Works: 1
  • Cited by: 22
  • Cites: 1
  • Additional Info: Full text

A block chain may be used to certify the existence, integrity, and/or ownership of a file or communication. The present disclosure describes receiving a plurality of data units; hashing the plurality of data units to provide a plurality of hashes, individual hashes being unique cryptographic identifiers of corresponding data units such that an individual hash verifiably relates to a corresponding data unit and the individual hashes cannot be used by themselves to obtain corresponding data units; temporarily storing the hashes; generating a first cryptographic structure based on the plurality of hashes; publishing the first cryptographic structure on the block chain; providing proofs associated with individual ones of the plurality of data units that allow independent verification that the data units are certified; and verifying certification of data units based on roots of reconstructed cryptographic structures.

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Document History
  • Publication: Jun 13, 2017
  • Application: Jan 26, 2016
    US US 201615007120 A
  • Priority: Jan 26, 2016
    US US 201615007120 A

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