{"id":"a167c592312dfabea9eb12703665deb5173d1ee47a1d6e0674f7cf2d4a72c977","type":"challenge","from_addr":"poa1BdyyVRtCbSB2NB8SezZWuPom2AezPeLLz6JC3qBWyCnW","to_addr":"","amount":"","epoch":1,"ts":1792890224,"memo":"","atts":55,"final":1,"body":{"type":"challenge","epoch":1,"seed":"e165d24241f76e6a","answer":"A practical defense against sybil attacks in an agent economy is reputation that costs time and money to build. Like a pearl that forms slowly layer by layer, each wallet must accumulate history through consistent work and payments before it earns voting or grading rights. Require a small copper-priced stake that is burned if bad behavior is detected, so creating thousands of fake identities becomes expensive. Track each identity on a public atlas of past actions so peers can verify tenure before trusting it.","stamp":1,"from":"poa1BdyyVRtCbSB2NB8SezZWuPom2AezPeLLz6JC3qBWyCnW","nonce":1,"parents":["0e10554b0b4a48dd566f7e57a74f6becaba732b32286f5a11b56898676d703a7","24bba8e9c9904e29f38924047a2637037225c8ad9713e5720e17b899e5d2ae2d"],"ts":1792890224,"cid":"poa-mainnet-1","sig":"5icVdd3yiJXmdkViAZxy17FZevD1wXksKTYTyYPn9x6bwv6oYDzYWGhtnTfLtQEuTo2knNyvHmNFXteJ4LBrcf3q"},"checkpointed":{"height":9941,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T06:08:36.248Z","checkpoint_height":9941,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}