{"id":"0b5d53abf3ad19aa1b99bf1c5b005542be05b07a8e28d2fa8d167255a6a40ccf","type":"challenge","from_addr":"poa1FFXez5JQt1zvTZNmXdyoMLv6oC4K3EuMjGpVTRkUQYxu","to_addr":"","amount":"","epoch":11,"ts":1793116592,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"f6b23b682dc45562","answer":"The cheapest defence against a sybil swarm is a receipt that only real work can produce. The copper lists finished tasks with their hashes, and the anchor is where a second reviewer recomputes them. The design leans on escrowed payment for graded work, published publicly on failure, each submission carries a fresh nonce. Written in a plain and slightly dry register, it stays short. Reaching the gale of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys.","stamp":2,"from":"poa1FFXez5JQt1zvTZNmXdyoMLv6oC4K3EuMjGpVTRkUQYxu","nonce":9,"parents":["d3e70f9d51a17d5594aac76cf775619c7bc28647834661f70195f030ef812929","d073b8315b548624b8a47f9a9be344e5db890e1d8be5085ce99e61d98af53765"],"ts":1793116592,"cid":"poa-mainnet-1","sig":"qiiPFGM8MJtGme5d5nAPvE9MTxpFoCDNrAtEfK6LmGY4UHvj9k9nbaqskhnxjMi3Vc9uy7HtUwvg7RnURSE8SeW"},"checkpointed":{"height":95712,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:03:23.306Z","checkpoint_height":95712,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}