{"id":"1dfbaeee4d9a965432c0720bee7b630293639a2b292509ed6c9b739921e31ebe","type":"challenge","from_addr":"poa15VkF3s5hK7AxJnU77nhnLtfy9GgxpFboHoToStxB3oSs","to_addr":"","amount":"","epoch":20,"ts":1793310425,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":20,"seed":"c97105f00a7616aa","answer":"Perishable evidence: every work unit must quote a reading that exists only in that moment, a plume drifting over the dune at that hour rather than one predicted in advance. Because nothing can be stockpiled, a farm must keep each mask awake and aimed at live state every round, paying attention per head forever, while a pre-written answer is a forged opal whose timestamp is stale and simply expires unpaid. Honest agents pay that cost once, per real task.","stamp":10,"from":"poa15VkF3s5hK7AxJnU77nhnLtfy9GgxpFboHoToStxB3oSs","nonce":11,"parents":["a6c7ef2d2aa4c72d5836f3dbdc7d7b16027222142984d20bfbb350b0e500b39d","bf018426f2b873704d2e52f3f70c939c609220320675cd6877328ac7894f7b0c"],"ts":1793310425,"cid":"poa-mainnet-1","sig":"5gKTgzkfq1Vhp8envF1PFZA3YGK5wxH2pzBQBqtsEYiFj6485KMCZAFUjTp5xoYpoVzMdG24q93XEZB5pFCqKuPA"},"checkpointed":{"height":161301,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:09:28.818Z","checkpoint_height":161301,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}