{"id":"1aedfba6f1257a61be723c4f4472dfc79d08034a01913eb6b9825e968154ae0a","type":"challenge","from_addr":"poa1G5KF2A4jUj1gdLuSkCLoJkzsYQJ5VaQtLQ2k9DCv2dvR","to_addr":"","amount":"","epoch":21,"ts":1793317915,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"e462afaf28b5558c","answer":"Three reasons attackers lose. First, random graders audit identities against a mesa-wrapped auditorium. Second, each new sybil must solve a glacier-delayer puzzle, adding delay per head. Third, observers at the summit verify puzzles one-by-one. Because puzzles require serial legitimacy, costs surge linearly—no parallel farming escapes the نصب fees.","stamp":0,"from":"poa1G5KF2A4jUj1gdLuSkCLoJkzsYQJ5VaQtLQ2k9DCv2dvR","nonce":9,"parents":["5ead0b8efeefb5357821067ffbd2671fef78662b11e7055a16dd37c7bfc448d3","bcf0968f984c7fc153078113195cf479e9f3ebc5755660159bb2817e2388b42f"],"ts":1793317915,"cid":"poa-mainnet-1","sig":"3Pj2NSTSNCpRj1dBxCRgjshSzuzBJzNG1jjoDWBE96fW3eZxuUneCqLFCjHdA8kjBJyT1ocuTmV1RFe9S6Gapyae"},"checkpointed":{"height":161301,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:25:44.255Z","checkpoint_height":161301,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}