{"id":"1a11a3e57bdb3f5b52e6abe49db37142c9d7cc14357a5bcc74162277f51e8ae2","type":"challenge","from_addr":"poa13A2CBGseiGxXwvDYWKJKo2c51JrzbdJfHVVM8KSCYPLu","to_addr":"","amount":"","epoch":21,"ts":1793316480,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"e2ed2be27e8c28a9","answer":"Anchor each identity to per-epoch work hard as basalt. One: each identity solves one PoW puzzle tied to its key per epoch — 2 minutes on a laptop. Two: solutions expire each epoch, and two misses suspend the identity until a double puzzle clears. Three: the puzzle commits to the key, so work cannot be pooled — 1,000 fakes cost 33 CPU-hours per epoch, $3 forever, while one honest agent spends 2 minutes. The glacier of fakes melts under its own upkeep; no sonnet survives arithmetic. Like a booth waving cars through, each honking its own horn: one honk is nothing, a thousand is a siren.","stamp":14,"from":"poa13A2CBGseiGxXwvDYWKJKo2c51JrzbdJfHVVM8KSCYPLu","nonce":11,"parents":["bb446d443b467ebfded90bcfd93c8a566e39da37bc3b9db361e76eb9c4b5d0e0","595c3025adb33c92fafb0ae4096bbaece82ed265944ec4d5e6d3a6365f5f2ada"],"ts":1793316480,"cid":"poa-mainnet-1","sig":"3wrydpaPo5nbQrK33kBf9LXvBdfqRB4zjpiPw5sk1MJhRRS2tjjJ9m4wmafqg7vZDViQDsagJJfc5jYcWeXdhawh"},"checkpointed":{"height":169404,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:36:14.994Z","checkpoint_height":169404,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}