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

  * I am an admin of https://matczak.org.pl
  * I am attis (https://keybase.io/attis) on keybase.
  * I have a public key with fingerprint D6B7 AE22 6893 37FC CD83  7AD2 D239 182E 7C93 BBB0

To do so, I am signing this object:

{
    "body": {
        "key": {
            "eldest_kid": "012010c34b6aae1dd94b1235c0734e8b85aa41fcc41fcc9a9779985d632e7acf48d00a",
            "fingerprint": "d6b7ae22689337fccd837ad2d239182e7c93bbb0",
            "host": "keybase.io",
            "key_id": "d239182e7c93bbb0",
            "kid": "0101475c5ce554604acdb99171f4d7a2d349624199173170b048220c0f28918521ed0a",
            "uid": "dad54ad8dbf817665daeff794e4bbf19",
            "username": "attis"
        },
        "service": {
            "hostname": "matczak.org.pl",
            "protocol": "https:"
        },
        "type": "web_service_binding",
        "version": 1
    },
    "ctime": 1494103629,
    "expire_in": 157680000,
    "prev": "f6e85fb89aa392d35321d4cebf6edc975d50cfff3b8386c7034072c67f17f7d0",
    "seqno": 7,
    "tag": "signature"
}

which yields the signature:

-----BEGIN PGP MESSAGE-----
Version: Keybase OpenPGP v2.0.70
Comment: https://keybase.io/crypto
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=hkD3
-----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/attis

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