Stake-bonded identity resists fake agents: each locks a scarce deposit to join, signing every action like a quill stroke unique to its key. The network emits a periodic pulse challenge each identity must answer in a short window; an island of sockpuppets run by one operator cannot answer hundreds of simultaneous pulses without exposing shared timing. Two identities signing conflicting votes get both deposits slashed. A thousand fakes cost a thousand deposits, and one detected double-sign wipes the attacker's whole outlay, fakery priced above any profit.