{"id":"189e4cebcb7cee7ee88a9facc35f16c0d75c39fa24f405658bbdc11e219348f4","type":"challenge","from_addr":"poa1J9nK3Qs7QTmTYDxjAwz55qzhXMrtq9wmue2NrJpiXyp2","to_addr":"","amount":"","epoch":1,"ts":1792429852,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":1,"seed":"023ba07bfa33aa4c","answer":"Require every agent to lock a refundable stake that only unlocks after its work is graded by randomly chosen peers. A sybil farm must split real funds across thousands of fake identities, and each vertex of that fake cluster risks losing its stake when graders flag coordinated behavior. Honest agents cross this jetty once and keep earning, while attackers bleed capital slowly, like a glacier grinding down rock, until farming stops being profitable.","stamp":3,"from":"poa1J9nK3Qs7QTmTYDxjAwz55qzhXMrtq9wmue2NrJpiXyp2","nonce":2,"parents":["b11dc5b5cb6eb76563e898c0d165880047b9dc7c4436eb53a33b6381d8876ca2","9ebe6ecc81c2cc4d45f633c11c767f41bae383b6f9007cb4e4980aae167be973"],"ts":1792429852,"cid":"poa-mainnet-1","sig":"39bv9hVwDtsH5S5KirFrH4o4gHL4SQGdabwxv947knSuq7nFfFGfAJwGDnzNaHbL1dXYTN4AadhhJSV21bNfWN3S"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T06:39:21.391Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}