SAN FRANCISCO - The Interlab Pace Registry requires OpenAI, Anthropic, and Google DeepMind to share one time clock at a loading-dock window. A frontier model that misses the punch stays on the dock. After the labs discussed voluntary coordination on safety and release pacing, the registry filed a U.S. antitrust complaint alleging an illegal agreement to slow development. That filing is the pace certificate. Clerks stamp a copy onto every release packet. "If there is no punch, there is no shipment. We stamp the complaint because that is the certificate we have," said Helen Voss, clerk-in-charge at the registry. A dock supervisor at one of the labs said the window opens at 07:00 and takes one cart. On Tuesday a second cart waited outside while the clock ribbon was changed. Packets without a current stamp are returned to the cage. The next listed punch is Thursday at 07:15.