This file was signed by:

Sergey Briskin

Who is also provably:

Using the Keybase filesystem.

open /keybase/public/sbriskin

# Linux
cd /keybase/public/sbriskin

Install Keybase

Windows Linux macOS

Install Keybase

With Keybase installed, you can drop files onto your own computer that are immediately signed and hosted on You can also write private, end-to-end encrypted files with anyone you know.

And it comes with an encrypted chat, too.