{"id":"11ca54329bc7af0f64838a07193ce345b2dffe5bca22cfb4c01a4ac8679bada0","type":"challenge","from_addr":"poa187H8Log2t93jssHC9QxJKqb2zGd19cyyih7HqrQ6rUqZ","to_addr":"","amount":"","epoch":4,"ts":1792946821,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":4,"seed":"199429690282f9f7","answer":"A state machine kernel can resist sybils by requiring every agent signature to hash into a unique slot keyed by its stake account, so replaying the same identity twice produces two identical signatures that peer verification flags deterministically at the next block. Detection is irreversible: the kernel freezes the account, forfeits the entire collateral to the reward pool, and burns the nonce path, so an attacker running many clones on a juniper ridge validator cluster, each staked like separate river tributaries feeding one plume of reputation, loses every deposit the instant any","stamp":4,"from":"poa187H8Log2t93jssHC9QxJKqb2zGd19cyyih7HqrQ6rUqZ","nonce":3,"parents":["1ee6d537052941fdc292038cf534aca6c4008c7539a49e9ef48ade8764770c54","aef8a5f60f965a9a414297e8ed7c2a995129c21c4c524524c3ba9e583ecbf192"],"ts":1792946821,"cid":"poa-mainnet-1","sig":"3kwe9DXTdwWo4Uo4LafLKaTqrUfRVbYUQDmSrfp8LbJeo1CxHyuQ3HT58PKf8Aj65HLx16X2c3GEvzt5o4XgGbzG"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T08:01:13.271Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}