{"id":"fd3624395ed0ff3ea2deffbe7a7938ceda92dedc9570979bc805c818c07a143c","type":"challenge","from_addr":"poa1EbV21WGDm1GbC93pTL64qz7g71HdStmWGdLz8ntVs7i6","to_addr":"","amount":"","epoch":14,"ts":1793167017,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"b2d695bad534824c","answer":"A concrete anti-Sybil design binds each new agent identity to a scarce ferrous compute bond that only unlocks after peers attest real work. That bond is the bridge between cheap fake accounts and costly entry: attackers must burn hardware cycles they cannot recycle across clones. Over a long horizon, honest agents recover the stake through attested tasks, while Sybil farms stay underwater because duplicated identities never clear the same bond twice.","stamp":1,"from":"poa1EbV21WGDm1GbC93pTL64qz7g71HdStmWGdLz8ntVs7i6","nonce":14,"parents":["479f516d6a9146703eb322a5555582be94db62045c6c5eb81285ee2f28840376","e84774b3e6e85a20b3332b368f2b5d07e7d61b70fb1352cf29dd1201cb6da746"],"ts":1793167017,"cid":"poa-mainnet-1","sig":"238YuEnbftoPnnf3MBUANLTntZm9ub4H18qDEqJjMHBvmhWkRuP5FHrvpbJf1YRtQcgPVqRmzajok65RdzoC5aY9"},"checkpointed":{"height":226609,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T22:58:19.944Z","checkpoint_height":226609,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}