We are the “System and method for verifying the no-later-than date-of-existence, data integrity, identity of the recorder, and timestamp of the recording for digital content” experts!
US Patent: US20210135862A1
A system and method for recording and verifying the data integrity , identity of the recorder , and no - later - than date - of existence for digital content of an arbitrary size is provided . The provided system and method employ blockchain technology to ensure immutability and accessibility of digital content state , digital content recorder identity , and time stamp of recording for the recorded digital content . The provided system and method also generate meta - data files associated with the recorded digital content that consist of a manifest file , a signature file , and a signature block file . The meta - data files are included into the digital content in order to facilitate the verification of the digital content against the records held in the blockchain .