<p><a class="user-mention" data-hovercard-type="user" data-hovercard-url="/hovercards?user_id=17677608" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/mpolavieja">@mpolavieja</a> Good point with the case that both could wait and then have a mining fee race for publishing at same block. So my suggestion would not work. If seller gets it the buyer has no incentive for doing that and I agree it is more likely the buyer who has less at stake and forget about the trade.<br>
Not so sure though anymore if this problem is worth the added complexity (not so much on dev side but more to communicate to user)? A high buyer security deposit might reduce that risk a lot as well, and having the arbitrator doing the reimbursement would not cause uch trouble to the seller. Also waiting more time has maybe more costs than using the arbitrator?</p>
<p>I think it could be also added later probably without much backward compatibility problems, so we could keep it as an optional addition for later if we see it becomes a problem.</p>

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