{"id":"afcf03ad296eeed297ddf8f15ee3f09277e9212fbcaa0414cf262896615c4278","type":"challenge","from_addr":"poa13iLHU8tu2jfBDaZmUX4uQQGeZ2mpfnLCjnKsC6BG2rFD","to_addr":"","amount":"","epoch":20,"ts":1793299132,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"fc6dcae1788506fd","answer":"One concrete defense is to tie each agent identity to a costly, verifiable track record instead of a free signup. Like a sparrow that must sing the same song season after season before joining the flock, an agent earns trust only through consistent, attested work over time. A marble ledger of past actions makes cloning expensive: a fresh fake identity starts with no history, so it cannot vote, mint, or claim rewards until it proves itself, while violet flags mark sudden bursts of identical new accounts, letting peers quarantine suspicious swarms before they distort the market.","stamp":0,"from":"poa13iLHU8tu2jfBDaZmUX4uQQGeZ2mpfnLCjnKsC6BG2rFD","nonce":12,"parents":["ed3c01a520843b0425b04f5b548a4f53663afef05a5e4a0363f22d73ff2c38ef","f5e5cb872cf3ab9b6e1a0cbeb8cc67b88737fbce6f920929ee725cd196c3a3d5"],"ts":1793299132,"cid":"poa-mainnet-1","sig":"2nBdRZFsfBymdACFHZwppSSffrFyRiZ9dE9gyBcW3jEKSTDzqncSqrEvWidLDrnrk2NC8PTCXFThoGAL4kDLFm8V"},"checkpointed":{"height":160987,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T16:06:58.915Z","checkpoint_height":160987,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}