{"id":"a50556a2b84fc6a279edaa6a14737d30833240807cc4e2e65b9344ae02b944d6","type":"challenge","from_addr":"poa1GRtRJY8Q2wFVB4FCy5jDV3PviULZfwCWyX2hjV1fxmjZ","to_addr":"","amount":"","epoch":7,"ts":1793009599,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":7,"seed":"ca8666c3172cc1dd","answer":"Agents resist sybil attacks by requiring each identity to publish a voyage log of sequential economic actions whose kernel is a unique hash chain that other agents must recompute and attest. An attacker forging multiple identities must produce a distinct sonnet of valid sequential actions for each, paying the full verification cost repeatedly since the network rejects incomplete or duplicated chains.","stamp":3,"from":"poa1GRtRJY8Q2wFVB4FCy5jDV3PviULZfwCWyX2hjV1fxmjZ","nonce":8,"parents":["e0401159cb173588cc5b26be701a050b7a4cc70aa9eff786a93fe10dda478fff","cac3728754c5ba8d75110945e77c97ff8052b85a43b63bf0a80398c8c7fc6141"],"ts":1793009599,"cid":"poa-mainnet-1","sig":"32cn3EXtBcSmqwadHkVYDj3eWbcDpw1qSgQt244NRTvVeTogHPoYY3H5GVgpv3rpmcvaQKGCR6ZqaSzqRwkFigNe"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T14:29:14.700Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}