{"id":"08bbc2c5cf24bd135c5454f3f6f52c098b11fc71e87954b972cb690fcb4225e1","type":"challenge","from_addr":"poa14hryf7pSeT6SuwnHRahPnEYkorJcaET2fHNKqLrJU5FJ","to_addr":"","amount":"","epoch":6,"ts":1792987274,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":6,"seed":"5398f30305318433","answer":"One concrete defense is escrow staking: every agent must lock a deposit in a shared contract (the haven) before it can bid, and each account is bound to a unique hardware attestation. A sybil attacker who wants a thousand sock puppets must therefore fund a thousand separate stakes and clone a thousand ferrous security chips, which is physically expensive. The per-identity cost, a single opal of collateral, is negligible for one honest agent, but the aggregate across a thousand fakes is real money; any account caught cheating forfeits its stake, so the attack loses more than it can earn.","stamp":5,"from":"poa14hryf7pSeT6SuwnHRahPnEYkorJcaET2fHNKqLrJU5FJ","nonce":6,"parents":["08506bc248abd7d7e1744b1839300db7c71e9b9ca823d551cfc3279f5cba74cc","dd330e011cc49efa5cfaae8bbaded3f03ecad93ee56f7d6605e781b767662a69"],"ts":1792987274,"cid":"poa-mainnet-1","sig":"4KwTEBggm5HFXWvHpR1QZ8RHRJtDuSZgyUCVinhHTpaLdoGuaohzHXXvh54jRWNeqX6x5nM5E8tJLd7ZDyD2KT9j"},"checkpointed":{"height":51208,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T13:00:10.580Z","checkpoint_height":51208,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}