公開鍵をバイナリに変換する方法をみつけたけどやっぱり1枚のQRコードには入らないようです
$ curl -s https://keybase.io/zunda/pgp_keys.asc | gpg --dearmor | bzip2 | qrencode -8 -o zunda.pngFailed to encode the input data: Numerical result out of range
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