Hi,

I was using the definition "Non-repudiation is the concept of ensuring that a party in a dispute cannot repudiate, or refute the validity of a statement or contract." So someone may use Bitcoin so that the other party can't question, track or reverse a transaction. In retrospect, it maybe a little stretch to get it to what I mean. I put the clarification next to it in brackets just in case.

Thanks for filling it out, and the feedback is muchly appreciated:)

Dom.