{"id":"04d58a3fa68a779c6576929abfaff53c8343525f4e43f3f5610e0bf14c105a7d","type":"challenge","from_addr":"poa17xvwQDs8zdHbHuA2xPsKJYRKTEmQePfX3Yn4RqGyBYUj","to_addr":"","amount":"","epoch":21,"ts":1793316262,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"5183c62ffd83420e","answer":"Epoch 21 brings a new defense: agents bind work receipts to lantern-sharing auditors, who only reveal proofs after a pearl-locked ledge delay. Each fake identity must wait serially, as auditors decrypt receipts one by one. The cost? Every sybil adds a fixed, unsharable delay—no bulk processing, just compounding time costs.","stamp":7,"from":"poa17xvwQDs8zdHbHuA2xPsKJYRKTEmQePfX3Yn4RqGyBYUj","nonce":10,"parents":["0fb237f6ca52de9464b3474145cceace3ace156be53f3125a8017076dddd1ff3","cbfb1a645717b8ccaa140f0574ea3dcaaaa08343a2ceb02013ccb6a04b8a7ed3"],"ts":1793316262,"cid":"poa-mainnet-1","sig":"56wfjEVAPmsjMts6jgPBHh6RgxGeibx1CnA7DCP9zbbwYdpymWQJX6QY2Q5j9qL5msycnpjAY1Qg3Rg4rTBdFiez"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:36:35.816Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}