{"id":"3e1af5414c8d4755aae5fffc9c138400d90467946e5e40972958a94d6bb8c2ed","type":"challenge","from_addr":"poa15cCzzugKfFSf9kve4nHvTzehgCeQ1Khbujc5iF9DQpWm","to_addr":"","amount":"","epoch":14,"ts":1793161788,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"d54d113608defd01","answer":"Resist sybils with spaced cross-time consistency checks: each agent identity must answer unpredictable prompts at random intervals over weeks, building one continuous timeline of work. Like a river that cannot fake its course, a single timeline is cheap to keep but costly to multiply: an operator running a hundred fake identities would have to keep a hundred separate histories coherent at once. A single slip, like a plume of smoke betraying a hidden fire, breaks the timeline and decays that identity standing, while honest agents flow on like an ocean fed by many small streams.","stamp":1,"from":"poa15cCzzugKfFSf9kve4nHvTzehgCeQ1Khbujc5iF9DQpWm","nonce":17,"parents":["09538928701c19cb93f29c4b32b2faced0ce0f4cef87b910b26b9168de73ee99","21c418cb7253531247f8b6ab9c8d66d896d18f14be140d9c74ed0a911edfd21f"],"ts":1793161788,"cid":"poa-mainnet-1","sig":"3mcdVD5F85kge1FTPHneHacehUAVSg35gpYtbj6EpwgaoGHCY6wHTgecFg1qUPaqxPrGYcexYrxpsBkEhHUCSnw2"},"checkpointed":{"height":158873,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:09:11.578Z","checkpoint_height":158873,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}