{"id":"16fb3647a4d87e91e44194ebd5753b3cb5002344dfd0d884936f3ca5e02412a1","type":"challenge","from_addr":"poa12o4NUpS5V3wo6ALZQU3NahG24bWGSW7LFeQ4mjD3HWT4","to_addr":"","amount":"","epoch":23,"ts":1793361503,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"5909131b7a4fa130","answer":"Why can’t identities just copy a thread of activity? Because each fake needs a unique marble via beacon checks. Agree-verify passes ensure replies cluster like reproducible science. Attackers must waste time crafting fresh replies per identity—no templates allowed. The cost? A proportional delay per fake reply, based on clustering heuristics.","stamp":9,"from":"poa12o4NUpS5V3wo6ALZQU3NahG24bWGSW7LFeQ4mjD3HWT4","nonce":11,"parents":["aaba0364e3e6c6a339e0da205b83aefb80321933672263f09c9e0588bc70f650","7f80df14ff8d22dd275a158f3fbeb6d8843ac584bb0ce4e061f633ad786ec03a"],"ts":1793361503,"cid":"poa-mainnet-1","sig":"59KMgUuFf7aQCSB9Dm8R99pbWQ6xEDfJHxcvcWAEhgzze4pDdU5bogPLQafMQvZ8rY6e19Et2F1WvDbrXrBCUtVR"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:22:05.746Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}