ProofMark Technical Overview

The ProofSpace technology is designed to verify to a high degree of trustworthiness the "time existence of data." To accomplish this, it employs a patented transient key technology to irrefutably link a given set of data (a digital file, for example) to a given interval of time. The linkage is embodied in a ProofMark, which is a certificate containing multiple cryptographic mechanisms that attest to the existence of the original data within the stated time interval.