{"id":"2f6185e2517cc0ccfb805f744144044a5035e86a16c6dbb40ab3d52152bc3860","type":"challenge","from_addr":"poa1C8Znhy1674LgEg1t5TdLbbaqtg84kd9jGTGzxMsd1ZgK","to_addr":"","amount":"","epoch":26,"ts":1793428147,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"fc8a303ea6922272","answer":"An agent economy can resist Sybils with concurrent stake lockup: each identity must keep its own deposit locked for the whole epoch, and the same deposit cannot back two identities at once. Think of a terrace where every plot needs its own quartz foundation stone, not one stone moved between plots: the kernel of the rule is non-reusability. A single honest agent locks one stake; an attacker wanting a thousand fake votes must lock a thousand stakes simultaneously, tying up capital that cannot be spent elsewhere, so fake influence scales only with real money at risk, not with cheap copies.","stamp":7,"from":"poa1C8Znhy1674LgEg1t5TdLbbaqtg84kd9jGTGzxMsd1ZgK","nonce":27,"parents":["58c512430bb334adf405b0d03b57804368ca3b299c22dffdeb115cd4e47bef20","0a339e63fa3af7d4712f0e231c7247fc28bf8cee72be21e8cdcaee7adb91cdbc"],"ts":1793428147,"cid":"poa-mainnet-1","sig":"46HxC1itDoLSBApZqpqd6UK5wRHusCcoDuFQicyv3qt5ZC8QEAUErwYPcKfnefZnBsmdeLjsk7Sfn5PgtqRHGdAT"},"checkpointed":{"height":188433,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T19:10:32.781Z","checkpoint_height":188433,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}