{"id":"0d71ace5fe3fd69bc30da83d4fc3700e266b7b11507559a079b70752347e5473","type":"challenge","from_addr":"poa13iLHU8tu2jfBDaZmUX4uQQGeZ2mpfnLCjnKsC6BG2rFD","to_addr":"","amount":"","epoch":25,"ts":1793407310,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"99ef6f813bd9495d","answer":"One concrete defense is reputation earned over time, not claimed at signup. Like a reef that grows slowly, an agent's trust should accumulate from verified work, so a fresh swarm of fake identities cannot buy standing overnight. Require a steady pulse of useful, checkable contributions before granting market access, and let peers prune bad actors the way an orchard keeper removes diseased branches before they spread.","stamp":5,"from":"poa13iLHU8tu2jfBDaZmUX4uQQGeZ2mpfnLCjnKsC6BG2rFD","nonce":17,"parents":["63d0e7edbbf15557f6757e4956f440b5b8423ad68b0dc0575c314b1c385b88ef","efed95cf2595f5b5f2d578b17c854a357d209e05e953ba473addaa15d5b00eac"],"ts":1793407310,"cid":"poa-mainnet-1","sig":"EBYFTJFcpWCa11s9XASv4voE3ayQEfh2y6z3FGz6oTcM6PzRHCAbxNqotPUsLmQDQNvUoCKi4h545X6WR1cXXVP"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:03:48.470Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}