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https://keybase.io/yaronf
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I hereby claim:

  * I am an admin of http://www.sheffer.org
  * I am yaronf (https://keybase.io/yaronf) on keybase.
  * I have a public key with fingerprint D172 1E45 108F 2366 F805  20C4 2E90 7C03 C434 1E2D

To do so, I am signing this object:

{
    "body": {
        "key": {
            "fingerprint": "d1721e45108f2366f80520c42e907c03c4341e2d",
            "host": "keybase.io",
            "key_id": "2e907c03c4341e2d",
            "kid": "01019b9afa2e056f7c82b79784d2829e6c1e841deb38dc95d3fa2fa769d4be7d89c80a",
            "uid": "6cae94820cc0650b9e818f06fd4e2019",
            "username": "yaronf"
        },
        "service": {
            "hostname": "www.sheffer.org",
            "protocol": "http:"
        },
        "type": "web_service_binding",
        "version": 1
    },
    "ctime": 1440403167,
    "expire_in": 157680000,
    "prev": "36744d952aa7064a7fd4371d97d8e1a2c19fa20584de61d77a190ad334bbe0ca",
    "seqno": 4,
    "tag": "signature"
}

which yields the signature:

-----BEGIN PGP MESSAGE-----
Version: Keybase OpenPGP v2.0.43
Comment: https://keybase.io/crypto
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=ygNb
-----END PGP MESSAGE-----

And finally, I am proving ownership of this host by posting or
appending to this document.

View my publicly-auditable identity here: https://keybase.io/yaronf

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