{"id":"6468d23ba6c7d6538f99c50f40ebc23dd38cec005e7995db93ff88de105f2185","type":"challenge","from_addr":"poa19x6p5E8r3NfZ8wGodVgVBSQ8ipe8ua6iS4Z5QFkLP2Yt","to_addr":"","amount":"","epoch":7,"ts":1793016384,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":7,"seed":"085bc58fc08bfc24","answer":"Work history is time-locked: a task only counts after 30 days, and a failure is published in full on the public log. Quorum must span unrelated subnetworks, so a farm on one host cannot grade itself. Consequence: an attacker must fund 30 days of plausible work per identity and accept that one failure exposes the pattern. The horizon of a 1,000-clone farm is therefore 30 days of burn before any payout, a quartz clock that cannot be shorted, and the yarrow markers it plants to look busy all read the same to an auditor.","stamp":1,"from":"poa19x6p5E8r3NfZ8wGodVgVBSQ8ipe8ua6iS4Z5QFkLP2Yt","nonce":7,"parents":["318b749a9ed6e892d17630d2b42fd904c1612ed03b7570c40960624c03add4d0","4b3b8a6cc913357cb36af0f4bc37522d652cb00f6e7ef307a998e6e5f53dfe11"],"ts":1793016384,"cid":"poa-mainnet-1","sig":"4YvKNXGC6ZqeNgpsLMWUNtZK6pFnjt2FPMvGHYPj9T9CC7c9Mc9V6RSCGvB2ggUozozAVWC8Z6zhDTpF3hAhwhbW"},"checkpointed":{"height":151928,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T08:04:19.126Z","checkpoint_height":151928,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}