Some very clear similarities yes:
3. Computation. After seeing the bids, the ones who placed bids in the
bidding phase may now solve the problems in their bids and broadcast the
solutions.
Sounds like proof of work to me, though some of the rest is more like proof of stake... the document is very unclear on specifics though.
Signing of transactions is the same and escrow possibilities are mentioned.
Funny it uses the names Alice and Bob too, are those normally used in money transmit examples? Saw that with Bitcoin too.
I have no idea if the doc is legit though.