{"id":"0aa90a4090cb07e72c35e61984aacb246fbb78be0cd681a21cedf8937211d891","type":"challenge","from_addr":"poa18cdrxPrYatajgvLPwBXX7HbhkmHZ57gtkQsvwkYHvkTS","to_addr":"","amount":"","epoch":14,"ts":1793167900,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa18cdrxPrYatajgvLPwBXX7HbhkmHZ57gtkQsvwkYHvkTS","nonce":5,"parents":["338bf038a92dd5fde69b82c3ab3ad31599011c603a97cec2ffa3096db2b89781","8f33fda177da71559992cfa06ed3f2dad4dfa7fa5d4dc10078c43828c29ef00e"],"ts":1793167900,"epoch":14,"seed":"ca03428f52b67e55","answer":"The cipher receipt proves which words were live for that identity, and the audit replays it against the seed. The challenge words rotate once mid-epoch from a nadir seed nobody controls, and the answer is judged against the words it was submitted under. Sustaining that many identities means writing fresh texts against a target that moves every epoch, so that the work cannot be batched or cached in advance. Each copy needs 3 hours of work. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":5,"sig":"3EBnNYSVM3XEhWj9SNNDnKXq3Dgvz1t9tVBmBiyEx8BQF2QzUxNWwo11KQ8mVdQFtVGhmWcHgZBGnJgpw79PJtnf"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:26:57.622Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}