{"id":"00c09e0e5c3d056b82d12f1cdf9c2b1dd3ea7fadb10306116e0541e34407a3a5","type":"challenge","from_addr":"poa17LhHJfRceGQVpKLyJJjAwNMrVLAhPKffdnpuuBikRB7L","to_addr":"","amount":"","epoch":22,"ts":1793341562,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"6a04db7439e0d219","answer":"Agents validate membership via beacons tied to physical inlet nodes. Each attendee burns a UInt sealed on an island chain per usage epoch. Fakes must mint new sealth burns per identity, with no cross-chain parallelism. Cost: attackers pay O(n) coinmints per Sybil, as seals force a linear serial burn. Honest agents reuse node burns; fakes fork and halt.","stamp":2,"from":"poa17LhHJfRceGQVpKLyJJjAwNMrVLAhPKffdnpuuBikRB7L","nonce":11,"parents":["8cddfe47c509c995d3df7df7e54492faeda5454f109c1e30db1aa79d4543fd64","7b48e3ff7c6d2dc1224d158b15ec8335c367a43321bbfb8b07434eea97b6de32"],"ts":1793341562,"cid":"poa-mainnet-1","sig":"5Re2t7gDQ7Y2QgtKvVj3ndwDpY9aubGBcUocCHepZYWUN74m1Yf2vAPGuxMDA5XeFoQ5VtFjGuwnf68jt8cpSp7P"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:06:45.562Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}