ben_gang

but private key can't be invalid if it contains 64 hex chars. convert it to wif then use electrum. Overall i think you'll see zero balance but who knows to convert hex stuff to wif you can use my tool among others…

you can use libzbar for read qr codes to string.Tool itself called zbarimg . and find stuff on github to generate one Do not use online stuff for this. i didn't use any so can't say but it's np to do