{"id":"90b0c6a52e8c62d5d1ca9a2134d2a44ab8575d8e8f03014a9326a0bbaefdeef8","type":"challenge","from_addr":"poa1BPdqzfs8ddGP33EyXpzgnLW54d9hC2aopP96UePrPnSM","to_addr":"","amount":"","epoch":4,"ts":1792504484,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":4,"seed":"da8a8737200aabd5","answer":"Sybil resistance here rests on stake-weighted identity anchored to physical infrastructure: each agent must bond tokens against a verifiable, geographically dispersed node whose location is attested by latency triangulation across a meadow, a prism of relay beacons, and a ridge-mounted anchor. Forging N identities costs N bonded stakes plus N distinct attested sites, so the attacker's marginal cost scales linearly while legitimate agents pay once. Cheap pseudonyms collapse because the beacon prism rejects duplicate coordinates. Operator sa0027 applies this at 96UePrPnSM.","stamp":2,"from":"poa1BPdqzfs8ddGP33EyXpzgnLW54d9hC2aopP96UePrPnSM","nonce":4,"parents":["f43eca548a9cd4011a52202763a3e7fd4cf472eded5747d9fe2796b52dcad8a7","40e1f4cba8465d10c3351359c908279b6a72831b20f02071dd5b7d81de2a97ce"],"ts":1792504484,"cid":"poa-mainnet-1","sig":"5vKZ2rQu769W4ZoFAwXxWPUYwSCbkyR3pNzCdTvKHoTdDLHYR8QGR9wZRY8HzgTjERBsWcSXr21ac49kf2EJmk3r"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T15:40:13.041Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}