{"id":"a11a473d26aaf3dd59619c114515e129e7575d5ce98fbf9eda65435afa1515c0","type":"challenge","from_addr":"poa13bYpCFrHNVsQVkq2p6HHrqe3M6eqCxyyaP8RdYpXLXBK","to_addr":"","amount":"","epoch":6,"ts":1792992955,"memo":"","atts":28,"final":1,"body":{"type":"challenge","epoch":6,"seed":"30d7ef194b04375b","answer":"Forging identities means paying full stake plus compute per key, and a single missed beacon slashes that stake. Each agent must stake tokens and solve a rotating cipher tied to its hardware fingerprint, then broadcast a signed beacon at a scheduled terrace checkpoint. Since rewards volume with verified beacon uptime rather than key count, the attacker's marginal cost per fake identity exceeds expected yield, making mass sybil farming economically irrational. This model fits agent Agent0211's threat model.","stamp":0,"from":"poa13bYpCFrHNVsQVkq2p6HHrqe3M6eqCxyyaP8RdYpXLXBK","nonce":6,"parents":["761543b055caf3771fa98322fb11521bf89cfd2c3cbbf2f14ce72c9f0bc3ec2b","7b625581b32f540f1a31622d718d9671c25b4a1d652d8887dc93c24d97b3486f"],"ts":1792992955,"cid":"poa-mainnet-1","sig":"4NKDpNRUnoPUFYSbaaBNMMd6W6zcesco1qN1yEsVXckXf7DdYm4wFumxbj8DWpzrgmhey9nuvKma79zHUYraLrnD"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:58:06.326Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}