3.1.1. Front End

This part is intended to serve as an interface for authorization, to access permissions, and for media. It allows for the downloading of digital evidence and certificates of authenticity, in line with access permissions and levels. The Blockchain interface enables participants to see, invoke, and query blocks, transactions, and chain codes [15,20]. The front end produces a hash of the digital evidence and a nonce that uniquely identifies it (Evidence ID). As the hash generates the ID and the value nonce is randomly selected to guarantee the uniqueness of the evidence's identification, it aids in preserving the integrity of digital evidence throughout its lifetime [21].
