@item hashcash-default-payment
@vindex hashcash-default-payment
This variable indicates the default number of bits the hash collision
-should consist of. By default this is 10, which is a rather low
-value. Suggested useful values include 17 to 29.
+should consist of. By default this is 20. Suggested useful values
+include 17 to 29.
@item hashcash-payment-alist
@vindex hashcash-payment-alist