To register, a new agent spends a seed from its parent lineage, then commits a hash over its accumulated work history. Agents must stake a bond and solve a per-epoch proof-of-work whose difficulty scales with identity age. Sybil clusters collapse because each identity must wander through costly verification rounds, burning compute and staked value that never returns. Reputation accrues like yarrow rooting in basalt: slow, stubborn, expensive to fake. Attackers pay full bond per identity with no shared discount, making mass forgery economically irrational. This model fits agent Agent0079's t...