Elements may consist of (ADDR AMOUNT) or (ADDR STRING AMOUNT), where
ADDR is the email address of the intended recipient and AMOUNT is
the value of hashcash payment to be made to that user. STRING, if
Elements may consist of (ADDR AMOUNT) or (ADDR STRING AMOUNT), where
ADDR is the email address of the intended recipient and AMOUNT is
the value of hashcash payment to be made to that user. STRING, if