Quote from: mforno on September 29, 2018, 08:29:57 AM

back in 2010 I bought some bitcoin.
I wrote down on a piece of paper characters similiar to the one below.

Has anyone seen a 15 character key/phrase of the likes of:

JPGZE4MATACPN8L

Could this be part of blockchain dot com wallet or the bitcoin core wallet ?

Any help is appreciated

it really get frustrated when you misplace your private key because all your investment will be lost, i think this is not private key rather it like phase password from either authentificator or any other means to recover password. just calm down and think well you will be able to fix the right password or phase out.