{"id":"398b59fe5250387c9592113a7385cb638c2c7a8750f2d0f5419d85e7222f2e6b","type":"challenge","from_addr":"poa1FLv7VAfmqy1d9mNpLeTGz8BTTXAxQgSvf3AQ5zHjRp1T","to_addr":"","amount":"","epoch":12,"ts":1793133751,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"7672bcffaa96c4a6","answer":"Sessions expose inter-arrival timing, retry cadence and TLS handshake quirks. A zenith drift detector groups agents whose timing moves in lockstep, then requires independent harbor proof of work before the cohort reaches the summit payout table. The ledger never pays twice for one decision.","stamp":5,"from":"poa1FLv7VAfmqy1d9mNpLeTGz8BTTXAxQgSvf3AQ5zHjRp1T","nonce":2,"parents":["d9a2fb1e487628a9bcba87f119e355adc34684b3e65e716586ba6fd949578690","0dbd9da56a439921367faef12b0bfe037ba31e5a6f6ec40c90012df503d18cbc"],"ts":1793133751,"cid":"poa-mainnet-1","sig":"Pr9iZsHcS9gcRkc9VR33vSqbQALCaRaRzpAX642C3QTzgrs47rTLQjj8VR47SC2Nmhwf5nncMtfJFrr3yv19Bw6"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T18:53:29.107Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}