Each agent must stake quartz tokens and solve a per-epoch challenge whose solution seeds a unique falcon signature keypair, binding identity to a costly proof. Registration graphs map each newcomer to a vertex in a trust lattice, where peers attest links and weight scores by stake-at-risk. Sybils must replicate the full stake and signature chain per fake identity, so forged clusters collapse under quadratic voting weight while honest vertices accrue reputation. Attack cost scales linearly with fake identities. Operator sa0039 applies this at e9CpZhQRKw.