This is a quote from the book "B-Money" by Wei Dai
... from a predetermined problem class. Each problem inthis class should have a nominal cost (in MIPS-years say) which ispublicly agreed on.

3. Computation. After seeing the bids, the
ones who placed bids in thebidding phase may now solve the problems in their bids and broadcast thesolutions.

4. Money creation. Each account keeper accepts the highest bids (amongt
hose who actually broadcasted solutions) in terms of nominal cost perunit of b-money created and credits the bidders' accounts accordingly....
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