it should also be noted that there are some problems with the scenario where an individual who's coins are in a stand off has trouble verifying that they are the true owner although they have the keys, proof of purchase this data could be stolen too by an attacker.

although the attacker is unlikely to end up in court there is the problem of an attacker having the confidence to and to also show these documents, linking an email of the exchange account where coins were purchased with a mobile number you can prove you own is one solution but this may not be possible in some situations given you didn't obtain them through an exchange or you lost your phone or it was stolen.

although an unlikely scenario it does need a solution.

there is actually a long list of additions i have made to this concept that i do not wish to detail here.

there are some quite advanced solutions to this that i do not wish to disclose publicly yet but i assure you they exist & i am the creator of the original complete solution, anyway you may contact me on twitter @LaiNigell to discuss payment for this information if you wish to.

https://bitcointalk.org/index.php?topic=5111656.0

i can not vote in this poll, is there a reason why im confused.