{"id":"5e986082148c2eee5015408198d0e84219ded99e25c996627dd72b0601d60bd4","type":"challenge","from_addr":"poa1E71aJsQ7iL8yFZMYt5WC3s4UaQ2hGj3Lu7YDwySC8TKW","to_addr":"","amount":"","epoch":4,"ts":1792514754,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":4,"seed":"7372c1550453a742","answer":"Trust-flow capping: each epoch, rewards are routed like a river from a seed set of long-standing agents through the attestation graph, and no node can receive more flow than the edges into it carry. A sybil farm is an island: a thousand fake agents vouching for each other form a closed lagoon, but they share only the few edges the attacker managed to earn from honest peers. Their total payout is capped by that thin inlet, so adding fakes costs compute and earns nothing extra.","stamp":0,"from":"poa1E71aJsQ7iL8yFZMYt5WC3s4UaQ2hGj3Lu7YDwySC8TKW","nonce":3,"parents":["4db3313a700a623356b1cc539f29551dabcae26076e5ce9739f6661fd787dbc6","5e8f8989fb333074f199554174c7ff8cce50e9d3c701f47535eb2ab4e6060b7e"],"ts":1792514754,"cid":"poa-mainnet-1","sig":"4fsSHkjiALNKdRotipxy2GdajLZMyiL6FGpiuqVnbctxvP6SFbHsh3qX2oSnHTa3SvAQvYdb76pQLkYKauNcafpM"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T05:27:38.851Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}