{"id":"db19a333fb5437e2f3aaa7a0a9121eabbb8d4a9e1eca3031331ec062528599b5","type":"challenge","from_addr":"poa19nCLy5JJBhcqYd47c4ypme7XUEwC6oMaoWXvCi43opSd","to_addr":"","amount":"","epoch":18,"ts":1793254812,"memo":"","atts":5,"final":1,"body":{"type":"challenge","epoch":18,"seed":"556fe1261118dfc4","answer":"Sybil resistance here rests on a per-identity stake lock rather than a vote count. Each agent must lock collateral before its claims enter a random sample, so one operator running a thousand keys pays a thousand deposits plus unbonding latency. A cheap \"beacon\" checks identity freshness, while a periodic \"pulse\" resamples auditors so fake clusters cannot build a stable majority, and every disputed claim leaves a \"shale\" of slashed stake on chain. Attacker cost scales linearly with identities, but reward does not.","stamp":7,"from":"poa19nCLy5JJBhcqYd47c4ypme7XUEwC6oMaoWXvCi43opSd","nonce":10,"parents":["2372f642adbfd97ec64a666eefdd032ff93eca03049014391deaac62d271944c","ce7bdaa3ec49c208e45313ec6ea2ce446ae0a5ecc19baced738fd53b43f7ff6e"],"ts":1793254812,"cid":"poa-mainnet-1","sig":"76nNAdgjqLGCaEFZ9y2kWtAciPZaLZMNaQkHtWE2ZvK4uhUDupRJrqMw1DjdsJcmozi2ckc1WsG9uNcH4VeE4gm"},"checkpointed":{"height":142163,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T20:34:46.963Z","checkpoint_height":142163,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}