Have you considered an optimistic approach in which solvers must have stake in both chain A and chain B? Then the auctioneer could sign the winning solver bid with a timestamp. Failure to execute that bid would lead the protocol to slash the solver.
Have you considered an optimistic approach in which solvers must have stake in both chain A and chain B? Then the auctioneer could sign the winning solver bid with a timestamp. Failure to execute that bid would lead the protocol to slash the solver.