How can you tell that federalists promise worked?

The federalists' promise worked as evidenced by the ratification of the U.S. Constitution, which was achieved by addressing concerns about a strong central government through the Federalist Papers and assurances of a Bill of Rights. Their ability to rally support from influential figures and secure the necessary state approvals demonstrated a successful appeal to the need for a stronger national framework. Furthermore, the quick adoption of the Bill of Rights shortly after ratification indicated a commitment to protecting individual liberties, thus reinforcing their promises to skeptics.