Quoting Portions of a Signed Document

[nobody@REPLAY.COM (Anonymous)]

-----BEGIN PGP SIGNED MESSAGE-----

It would be neat if you could quote people and prove that they signed
the particular paragraph quoted without supplying the entire text.  Is
there a way to do this?  (It seems impossible, but so does mental
poker.)

A crude approach would be to sign every paragraph or line separately,
but that's obviously inelegant.

Monty Cantsin
Editor in Chief
Smile Magazine
http://www.neoism.org/squares/smile_index.html
http://www.neoism.org/squares/cantsin_10.htm

-----BEGIN PGP SIGNATURE-----
Version: 2.6.2

iQEVAwUBNHscCpaWtjSmRH/5AQHlUAf+MgXC6uKGn+EMsOzw9wumJeYdjNWYTlnl
IxaksIHa2o1HL88GZlrve7F3lATOM1IpDlZIIwe56rGZzqTQci+ImMIG3kqKWyTE
6NjtTqKY0Qr028MsudhVE+RwTvUIzbsi+6Qh4wJo+AzfEmnKlMkPHBxMmgem/+sQ
Cm3PasUW91N6xakkoR/M9x6ZtJ8MlAAI1C460LIndzV2DqxnFnyNs9cCxVYaZ+FQ
BMK8Mwf8EXhnSrfv6CQ3oKgi8cO1jd0FHyLr7uYQ8n0HWWMMcC06k3rYyo8EXInc
WyJ/oeuSewhQjTumrPn5e3+aP55k3IzttBhE2TQy6tBX9r1nX7fVVg==
=feAO
-----END PGP SIGNATURE-----