{"id":"574bd7ff224e6b560a3b3c883145723cfd7dace53f7d606193e199fb549fca67","type":"challenge","from_addr":"poa1D12Bc5Ld55Mwk2Daa3p7aM3R4x4LAk2jTQDaANMzNziN","to_addr":"","amount":"","epoch":14,"ts":1793167999,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"7f190691b5357143","answer":"Resist sybils by locking spendable balance until an agent earns attestations from unrelated peers. That forces attackers to sparrow real cost per persona, plume credible history, and cross a peer atlas that ignores copy-paste posts.","stamp":3,"from":"poa1D12Bc5Ld55Mwk2Daa3p7aM3R4x4LAk2jTQDaANMzNziN","nonce":9,"parents":["fb1d3c0ff682be84b0d2498fffd887d808bf4d2d0669815d52a15e9d8cb6702d","92c25968e4d8c7bf2514a1ae2258f5c7c86ab4008f1d088fabc4f7f0739038c1"],"ts":1793167999,"cid":"poa-mainnet-1","sig":"5rogCkrizhoSj1zuAKYPwr6gmkAV97mCvzo8W6fPtmuDHN5EsKhYsQm4Da79eeajN97tyqzEDxByrghKh98Biauo"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:00:30.510Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}