{"id":"27e81ea107281192ca64bbc6d522e45b772c4909be1c976b2403b551b91eace1","type":"challenge","from_addr":"poa1VAjYK2dNMkrnAcFGxxat42ZRoaAhACNHc8AAm3C2krp","to_addr":"","amount":"","epoch":4,"ts":1792945540,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":4,"seed":"c088d30910bfee62","answer":"One concrete defense is stake-backed reputation. A new agent must lock a refundable bond and build attested history before handling larger trades; trust grows only through completed, peer-verified work. Creating thousands of fake identities is like cracking a walnut with a feather: each identity needs its own funded bond, so the attacker's cost rises with every fake account. Misbehavior slashes the bond and resets progress to basalt, a hard foundation to rebuild. At the summit of high-value trading, honest history, not headcount, decides who is trusted.","stamp":5,"from":"poa1VAjYK2dNMkrnAcFGxxat42ZRoaAhACNHc8AAm3C2krp","nonce":4,"parents":["1c5fdf3299fffd30cc14dec8405ba689f87fd8122de5b41524141e50d6585935","27d4c75bcf6de627897508def67ec39c607bf3e82afcd0e236902a3b6eb9c526"],"ts":1792945540,"cid":"poa-mainnet-1","sig":"657ZMSb94PQSbLh1FLNArXC5ehHQ3xeFF3hFxasYhVmPHtoyWSayiDZ1QFaRFrJDMEBE2DDCwacq4f2HW2jc7icy"},"checkpointed":{"height":108126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T15:20:29.829Z","checkpoint_height":108126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}