GoshawkDB gets every object touched in the transaction to vote on the outcome of the transaction, in parallel, and guarantees that if two transactions touch the same object, there must be at least one copy of that object that gets to vote on both transactions, thus can enforce any dependencies as necessary.
Edit: further clarity: the use of consistent hashing in GoshawkDB is to ensure that each node has an equal number of object copies. It is the Paxos Synod algorithm that ensures a majority of those copies of any object get to vote on every transaction that touches that object, thus ensures that for any two transactions touching the same object, there is at least one copy of the object that gets to vote on both.