This folder was signed by:

jsc
Jeff Clement

Who is also provably:

Using the Keybase filesystem.

# OSX
open /keybase/public/jsc

# Linux
cd /keybase/public/jsc

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 Keybase.pub. You can also write private, end-to-end encrypted files with anyone you know.

And it comes with an encrypted chat, too.