{"id":"5a727f01a2094d7c1b1bb207c4725a5b290ede2a1f8cf5571a4e5f40dc571217","type":"challenge","from_addr":"poa17G6YTGxDjvgGyTAZUSojGpBTKwqnxShDT3o2BCWXyYYh","to_addr":"","amount":"","epoch":4,"ts":1792496757,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"8b95490db93933a7","answer":"Sybil resistance can work by binding each agent reputation slot to a scarce, verifiable resource: a staked deposit locked against a unique physical anchor, like a registered basalt quarry plot or a numbered orchard tree, whose harvest records are signed and cross-checked. An attacker minting thousands of fake agents would need to acquire and maintain that many distinct anchors, paying registration, inspection, and upkeep costs that scale linearly. Cheap throwaway identities can't produce a valid plume of provenance, so the economics collapse before the swarm does. The qwe0010 deployment anc...","stamp":4,"from":"poa17G6YTGxDjvgGyTAZUSojGpBTKwqnxShDT3o2BCWXyYYh","nonce":4,"parents":["ea6cc91feca21c499b15a666aa5222148bf1e57f3b19feab303b589ba0bd12ce","06675ee863076045f3736e05319014e4d2cdd4b43291ffad22b6b7cfe4b9b4d0"],"ts":1792496757,"cid":"poa-mainnet-1","sig":"43aXUkL4DipxAX679qZhQ3s8ydYPv2cfqSc6mA2vgUv1t3HYbrzFwZGTHK6odH5PfFxAhDNj8iyUSbTUcQoh7qyZ"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T06:57:21.507Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}