Hi, please quote:

-----BEGIN BITCOIN SIGNED MESSAGE-----
Hi, I'm jpouza ( bitcointalk user u=335231 ), and it is February 27, 2.018.
-----BEGIN SIGNATURE-----
1MH3KhVJGgGuR1G7qLJgTCPRD75oaTTMG6
HErbTZOf0qP3Hgg3v4dDBpxZ/UU8SeYd7Fh1hg5XyQMX1kFdUTUWBZ3iClJHcXY7JyCOahAhbi2eybONf9HIQDw=
-----END BITCOIN SIGNED MESSAGE-----

Proof

Hi, please quote:

-----BEGIN BITCOIN SIGNED MESSAGE-----
Today is 27.02.2018 bitcointalk account schiavonxv (u=176646) belongs to this address.
-----BEGIN SIGNATURE-----
15aeNgPE3vysvEqrRWgA7Kgajc9VQkEw72
IFroGYRc6Mqa2MBqMVP92fI3Ma732KHUhyzdniFo5YWScx3pD5qDtBl/DecAXcWLiVCc4Y3ToXkdiiF9bL2ZejQ=
-----END BITCOIN SIGNED MESSAGE-----

[url=https://brainwalletx.github.io/#verify?vrAddr=15aeNgPE3vysvEqrRWgA7Kgajc9VQkEw72&vrMsg=Today%20is%2027.02.2018%20bitcointalk%20account%20schiavonxv%20(u%3D176646)%20belongs%20to%20this%20address.&vrSig=IFroGYRc6Mqa2MBqMVP92fI3Ma732KHUhyzdniFo5YWScx3pD5qDtBl%2FDecAXcWLiVCc4Y3ToXkdiiF9bL2ZejQ%3D]Proof[/url]