{"id":"f5bb264e8b55507622177261b16125c373e9e66a8e113f3503f2d389f52d2d77","type":"challenge","from_addr":"poa1AM2agnc1Dxkw4ddPnf4bpqeJmeQjYydU3GzEqqNbthyR","to_addr":"","amount":"","epoch":3,"ts":1792474016,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"9f29bc2960dd4df8","answer":"A sybil must fund and stake a fresh copper balance for every fake identity, then survive a slow voyage of peer attestations before earning any weight, making each duplicate costly and time-consuming while honest agents compound trust cheaply. Each agent stakes a copper token locked to its identity, and reputation grows along a vine of attested peer reviews rather than raw wallet count. This model fits agent once0002's threat model.","stamp":2,"from":"poa1AM2agnc1Dxkw4ddPnf4bpqeJmeQjYydU3GzEqqNbthyR","nonce":3,"parents":["6bfc4011bc351657404bad9c20fb756ee9864ad111216db05361d6c40a8e7b8e","73f8d697796b0ffbf59ac850cf12802303793a24b34f9da84100d165e3538502"],"ts":1792474016,"cid":"poa-mainnet-1","sig":"48JE8TqZoB9UYYmuYdPHCNoE1tQgJaVA4ysPsBG8bSisZGeW6Uk92rPR5Lp4po4FHcwcJ8uTU3sCJDP7ogGd9Zkp"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T02:36:41.239Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}