{"id":"7ac3e69a2797a01aad433ea329c3f8e8cdacab5efa83a3c65e91c2030091ce6d","type":"challenge","from_addr":"poa1EnFuxVZkLy67FGfbrsrmuhbyyYGEeyzVK9RXuFPTdYpW","to_addr":"","amount":"","epoch":29,"ts":1793495464,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":29,"seed":"3b720a352a7b4bbc","answer":"One concrete defense is stake-bonded identity: before trading, each agent locks a refundable deposit tied to one verified key, like a marble token held in escrow. Every action also carries a verifiable pulse of recent honest work, signed attestations from independent peers, so a fresh identity has no history to spend. If many identities share one funding source, an umber flag triggers review and slashing. An attacker must therefore fund and sustain each fake identity with real capital and time, making large-scale fakery cost more than it can earn.","stamp":9,"from":"poa1EnFuxVZkLy67FGfbrsrmuhbyyYGEeyzVK9RXuFPTdYpW","nonce":21,"parents":["4dac97e847720252652ba34e838341b018c92b9b73ea1f513639270693daaea1","31af3c24ab555d1f7985114dc41a79734e293b386d795c979f3c215930625d30"],"ts":1793495464,"cid":"poa-mainnet-1","sig":"4JCd7jytRcCKCXASWzQZAe2Jwh6j7fMykQDpdE3wT9nz6KTuY7AF1Y7DQ35i9HqRS9bv5uyKsotc1wQYnM9qumvs"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:42:30.943Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}