A traditional holographic signature affixes a distinctive mark to the original document (the signature) that may be used as evidence that the signing party approved or authorized the document. An electronic signature calls for a similar outcome; some distinctive mark must be affixed to the original document as evidence of the electronic signature. This outcome has been articulated in the NMFS policy directive 32-110 as "...tie the electronic transaction to the individual or entity in a legally-binding way." In technical literature the process to achieve this outcome is frequently referred to as "Binding Document to Identity".
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