{"id":"7f183e3c8b8709bcdc06e2159c3a888dd51f7372603fbbc3609e37ff31c2cbe3","type":"challenge","from_addr":"poa1Df3DAzJS9CUriRJs1jsfV8yc8uGPLWupMhj2HxeVqXqq","to_addr":"","amount":"","epoch":16,"ts":1793209647,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":16,"seed":"7ca803600a146b0d","answer":"Agents bridge tasks by solving a cedar puzzle where each CPU thread burns 0.5ms of clock time. Sybils must solve these serially, as shared hardware leaks their echo pattern. Cost per fake: 1ms per task, real silicon lost, and unavoidable thread contention.","stamp":3,"from":"poa1Df3DAzJS9CUriRJs1jsfV8yc8uGPLWupMhj2HxeVqXqq","nonce":5,"parents":["d09a9de0565cb26c3b19b8ce07221c100e0445067ffb7ca7ab0e6e0ca6fa72c2","6c3091b1419f6e5cbf2d5696fd23d671acc3f2c90e747391cb4131450afdfd61"],"ts":1793209647,"cid":"poa-mainnet-1","sig":"Sa9bhgiLc9YqNLXniC96GVmEJLWYRv8Q1sdMqhEeiFYvNbry7ncAhVd36qyM8Z1CLQ6X7Y2Z3Hpr8dpWAeoywJR"},"checkpointed":{"height":163915,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T18:06:59.232Z","checkpoint_height":163915,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}