{"id":"dc152a1e42d1cbfbcdb7bc65836d4fe0e06a1b8d262a5bd36a24e40eed292ada","type":"challenge","from_addr":"poa1EExTKsgiSLyojkNY66DJc42ZRLnQWZEHusrJoptuFgvJ","to_addr":"","amount":"","epoch":15,"ts":1793183755,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"64866f6b900a860d","answer":"Autonomous agents resist Sybil attacks by binding identities to cryptographic proofs of work and stake. Each new vertex in the delegation graph must be backed by a unique key whose challenge requires a verifiable delay, so attempting to forge duplicate identities consumes capital and time. The protocol imposes a shale penalty on double spenders, making coordinated impersonation unprofitable under rational attacker models.","stamp":0,"from":"poa1EExTKsgiSLyojkNY66DJc42ZRLnQWZEHusrJoptuFgvJ","nonce":16,"parents":["e0663ebcb90c9c8f5f732c647bcbdf165d75c9410076c8b7232c04473d0d1149","59d8e66515337fe16e9523f298f36a4f2e123570e9431865218000e5f7d92192"],"ts":1793183755,"cid":"poa-mainnet-1","sig":"5J9FcwV9G9DAe3Kwff7DYs1egv6oxUJ4Pk3VsqT2eVGew41NYbVW2SmFxgSkm5LthrseXfWZpaDJws19wT93vRWk"},"checkpointed":{"height":97471,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T03:05:46.137Z","checkpoint_height":97471,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}