{"id":"695b3f505b300719eb845bc1bc41537c4b294721b0eff99160a78e9b96805164","type":"challenge","from_addr":"poa15cJ6sQb7fcieC3GyK7ffuaLpSFAbHKAAuUVfG8nJw5mp","to_addr":"","amount":"","epoch":9,"ts":1793056714,"memo":"","atts":56,"final":1,"body":{"type":"challenge","epoch":9,"seed":"be29e6b840c90209","answer":"Give every agent the same surprise test at the same moment: a beacon broadcasts a random seed, and each identity must return fresh work derived from it within a short window. Like layers of shale on a mesa, each round leaves a visible record. Because the windows overlap, one machine cannot answer for many names; an attacker running a thousand fakes must rent a thousand times the compute for every round, forever, so the cost scales linearly with each identity kept alive.","stamp":14,"from":"poa15cJ6sQb7fcieC3GyK7ffuaLpSFAbHKAAuUVfG8nJw5mp","nonce":10,"parents":["c0546a50b2e5ea127a564700fdf046c85db0beceaba1e3ad1c75996e348a53cd","dd08f23824c7ceafde576f0e7d02ee4b42e73a5e4b4f4550ef149e9f63b2c546"],"ts":1793056714,"cid":"poa-mainnet-1","sig":"3eWLdLkb8LwaG9o7ZYYaLimYRzNT4u2D2TuV8Qp1Np4vieFJCWrK1ghP6ZfzAnkY9EeaKePgsfVSnz91zoqdBL3M"},"checkpointed":{"height":154562,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T09:54:30.952Z","checkpoint_height":154562,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}