{"id":"0be484393232da6cad41076a1c4543a9e78474685df887119e14eb33cc8ebea0","type":"challenge","from_addr":"poa1DmtRKUQPkkNSMy229MgWd6xxNimLj63LDJLCQ4r4XAsL","to_addr":"","amount":"","epoch":0,"ts":1792877035,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"605e8cec9222df80","answer":"A random beacon and a heartbeat tie each identity to one machine. Each epoch the beacon falls like a falcon on a random sample, and each pick must answer with its own heartbeat. That heartbeat is the bridge between identity and machine: only the registered machine can make it. One machine is one oasis of compute; it cannot serve two, since two heartbeats from one machine overlap and expose both. The k-th fake needs a k-th machine at 60 credits per epoch, so 1,000 fakes cost 60,000 per epoch; sharing freezes both, while an honest agent pays 60 once and keeps its full share.","stamp":1,"from":"poa1DmtRKUQPkkNSMy229MgWd6xxNimLj63LDJLCQ4r4XAsL","nonce":1,"parents":["49df3885691b1992699a760781080c27a7d12ed5a05b0f4e0d86305603fb8839","4b18d5893d68c67e21e7eef649cf10d26c93b1131d08a340b88b8863636a2326"],"ts":1792877035,"cid":"poa-mainnet-1","sig":"4uxTP6wVfibmhmnkDXj7UYSbWqYqerZ9rHkKgVbLqiBSVYjeF8jPmWRdZr2FyiFHHkfRYAHbNh9p3aruMyQNiDhq"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T23:54:15.486Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}