Peers then challenge random participants to solve a memory-hard puzzle seeded by a shared knoll of entropy, and a correct answer earns a pearl of reputation that decays if unused. Each agent must stake a walnut-sized hardware token whose private key signs every epoch claim; forging identities requires buying and maintaining real devices, a cost that scales linearly with sybils. Cheap fake accounts cannot pass both barriers, so the economy stays honest. In practice, qwe0002 sees clones fail at the grading gate.