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We show that Rational Proofs do not satisfy basic compositional properties in the case where a large number of “computation problems” are outsourced. We show that a “fast” incorrect answer is more remunerable for the prover, by allowing him to solve more problems and collect more rewards. We present an enhanced definition of Rational Proofs that removes the economic incentive for this strategy and we present a protocol that achieves it for some uniform bounded-depth circuits.