This is a quote from the book "B-Money" by Wei Dai
.... Each participant makes a determination as to theactual reparations and/or fines, and modifies his accounts accordingly.
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In the second protocol, the accounts of who has how much mo
ney are kept bya subset of the participants (called servers from now on) instead ofeveryone. These servers are linked by a Usenet-style broadcast channel.The format of transaction messages broad
casted on this channel remain thesame as in the first protocol, but the affected participants of eachtransaction should verify that the message has been received andsuccessfully processed by a r...