They decided to follow the trail literally. Adebayo arranged for a sanctioned ping to the old node. The node woke like a sleeping animal. The response was not a server but a person’s voice — thin and surprised. She introduced herself as Dr. Maris Ko, director of the lab until a funding cut had sent her team scattering a decade earlier. She remembered the HIDClass tag. “We were building a protocol,” she said. “Not for secrets, for mutual trust across fragile systems. When someone’s sensor saw what another did, they could say, ‘I saw this too,’ and we could correlate failure modes. It was communal hygiene for fragile machines.”
