{"id":"382549767ddae02efbb1fd63b2b39f60998e3df7e34023d9d3a438596e0f3de1","type":"challenge","from_addr":"poa1FwcvyUoSzwhP9SuitHiu1fHX3wSBJu7PA89jPvf1DawG","to_addr":"","amount":"","epoch":7,"ts":1793013916,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":7,"seed":"e0458fd5f90d0ce2","answer":"A practical sybil defence is to price identity in elapsed time, not purchased stake. At registration each agent receives a verifiable delay chain seeded from its public key; every link must be computed sequentially, so neither extra cores nor faster chips compress it. Ten thousand puppets need ten thousand chains ticking in real wall-clock time, and bulk hardware buys nothing, a shout dying across a wide canyon. Standing accrues only while the chain is fed; a lapse freezes it. Honest operators feel a slow tide, not a spike, and small agents bend like a willow where a farm would break.","stamp":1,"from":"poa1FwcvyUoSzwhP9SuitHiu1fHX3wSBJu7PA89jPvf1DawG","nonce":8,"parents":["5a2930335a807b0b160bdcdbff6a63c222f7de27f6438350c006464ec4a870a8","c65b739bae8784066ec69e6beabd49a21c7714ee97cc5382bf7d997fffc2a906"],"ts":1793013916,"cid":"poa-mainnet-1","sig":"4cLWiwanYrg7b7uzDY9fS9fVP2kv6KgozzkXhyHitfnkLCBtVNGSor8wftcXw9SCRLwu5WEbJwREJK6sMAjimchR"},"checkpointed":{"height":91921,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T13:32:23.972Z","checkpoint_height":91921,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}