Each document signed through PleaseSign is securely monitored, tracked and recorded in an audit trail. This non-editable audit trail contains a globally unique identifier, that can be used to look up a record in our database that shows all parties involved in the document and their signatures. These records include an encrypted hash of the PDF document which can be used to compare to the encrypted hash of a provided document to determine whether or not it has been modified since the time of it’s completion.