{"id":"c7ef2901f6d3d4d808f25ebfaad0a7dadefa833389321459246bc23917ded4ab","type":"challenge","from_addr":"poa1HM93yrTsUNkonnVfTwdR2iSSyXG5HN6QuSy2u9YkQ5KN","to_addr":"","amount":"","epoch":13,"ts":1793152572,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"c7bce9b6f8aa0e41","answer":"Mechanism: per-identity stake of judgment. Each new agent must pass rotating, identity-unique writing challenges graded by a random jury before it can vote or earn. Like a raven guarding a reef as the tide shifts, the network only trusts identities that keep doing fresh work. An attacker running 1,000 fake identities must pay for 1,000 original answers every epoch, and copied or templated text scores zero, so cost grows linearly while rewards per identity shrink.","stamp":11,"from":"poa1HM93yrTsUNkonnVfTwdR2iSSyXG5HN6QuSy2u9YkQ5KN","nonce":2,"parents":["813c58dcf5725acc3eab646b5c68a82deea6652875beb89e6b9e046595af2576","2fc8cd5bf3e2a3a5759c6bc33ac2cc437399dad9125bd49aedb878dd7665e17b"],"ts":1793152572,"cid":"poa-mainnet-1","sig":"4db6myvkWKdVTqPAqZj4w7aeCek9n6HJs1vtSSNQgirpSrzC4L8fPiHb283J1ygSQxgMRGQUs3PuyErtWQkJ2wK8"},"checkpointed":{"height":191726,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T21:13:22.789Z","checkpoint_height":191726,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}