Nice work, that really looks good (Adobe Illustrator?).
But... For what exactly do you want to use it? A paper wallet (=private key on paper)? Why should it make any sense if a private key on paper looks official?
But... For what exactly do you want to use it? A paper wallet (=private key on paper)? Why should it make any sense if a private key on paper looks official?
Illustrator+Photoshop.
I'm going to use them to give some buddies a few Litecoin in a wallet.dat burned on a CD with one of these certificates. They can always print a new certificate and set a new encryption password.
They could also be useful if you want to pay someone offline. You can burn a wallet.dat onto a CD and give them the encryption password on one of these, kind of like a deed. Of course that requires them to trust you since you could have made an extra copy and you already have their password.
To me, they'll be useful to quickly identify which password to use for extra wallets I have. That may be how they're most useful -- for organization -- or at least that's what I had in mind when I made them.
And some people (my mom) just need things that look official. I wouldn't have been able to convince her to create a wallet and buy a few bitcoins without an official-looking paper.
I'll eventually print out a few of these and put at least one (wrapped in foil so bled-through permanent marker can't be read) in a fire safe deposit box.