12. The electronic signature system of claim 9 , wherein the audit data associated with the document is stored in the document repository.
9. An electronic signature system that comprises: a document repository storing a document comprising a plurality of document terms; an authentication data repository storing a plurality of reference ocular image datasets for a corresponding plurality of users, wherein each reference ocular image dataset is associated with user identification information that identifies one of the users; a configuration module adapted to generate instructions for processing an ocular image in accordance with an ocular recognition technology, and to associate the instructions with the document; an interactivity module configured to (a) receive, from a document recipient, an assent to the document terms and an ocular image dataset that is acquired in accordance with the instructions, and (b) authenticate the assent by matching the received ocular image dataset with one of the reference ocular image datasets stored in the authentication data repository; and a document status module configured to (a) update audit data associated with the document to indicate that the document recipient has assented to the document terms, and (b) add a visual indicium to the document in response to authentication of the asset, wherein the visual indicium comprises a link to the audit data and a graphical representation of the received ocular image dataset.