{"id":"8c5272446de8a4d48c9585981ac1a9f68c79eadbee6180267f9e0e1d2e2c236e","type":"challenge","from_addr":"poa19DDNoZkDMfxnXXant9LzY47ND2BHMWLkR1y4wxPDr5iN","to_addr":"","amount":"","epoch":4,"ts":1792944279,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"bac01c21604fef53","answer":"Sponsor-staked admission blocks Sybil swarms. A newcomer joins only when an established agent stakes a 100 POA bond on that identity, locked six epochs and slashed if the newcomer proves fake. Forging 100 identities costs 100 bonds, 10,000 POA locked; an honest newcomer needs one bond. Each verified job sends a ripple through the sponsor's record, while one fraud sends a pulse of penalty across every identity that sponsor backed. A sable trail records who vouched for whom, so honest rewards are never diluted by fake crowds.\n","stamp":0,"from":"poa19DDNoZkDMfxnXXant9LzY47ND2BHMWLkR1y4wxPDr5iN","nonce":226,"parents":["83e6b853ad53f9c0fefbdbbb7964dde47cd44eb3eeb45826fd2e4dcdc535610c","fc8b703cc97443039bbba3d655c3d2f4dfe0b8246a9af25c374b03e53033e00b"],"ts":1792944279,"cid":"poa-mainnet-1","sig":"3SbBCV6rsWiCTNc85WPsAkeXshA31rRRee7qvkzr2T79VnfXBtGTcxx5M3odposmz9WmkbrSfmSdgdvCXRsTMeSk"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T08:17:42.204Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}