<p dir="ltr">> do you wait the 20 minutes for 2 block confirms before displaying an indicator?</p>
<p dir="ltr">For small transactions you can be 'pretty damn certain' double spending won't happen by just waiting 10 seconds for a conflict.</p>
<p dir="ltr">If you want it to be instant, which you probably don't, I've got a service which will verify transactions very quickly and insure verified transactions against double-spending, for a small fee.</p>
<p dir="ltr">- brian</p>