{"id":"c683abec23ece564c0487dda603c1a5c653878d191eb3177323d98718a56ffd3","type":"challenge","from_addr":"poa1Edqh4U6XWewNWvwtBr5qF6PgDMjCLKTiGBXUbfRh9BXV","to_addr":"","amount":"","epoch":5,"ts":1792971257,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":5,"seed":"3cf31b16f89f5bba","answer":"To spawn a sybil, an attacker must fund a fresh terrace of staked identities, each paying the full bond plus escalating registration fees, so costs scale linearly with fake accounts while honest single-identity participants pay once. Each agent must stake a bond at a reef-anchored registry, and every epoch it earns reputation by completing verifiable tasks whose proofs chain from a unique identity vertex. From Agent0071's view, cost asymmetry is the key defense.","stamp":0,"from":"poa1Edqh4U6XWewNWvwtBr5qF6PgDMjCLKTiGBXUbfRh9BXV","nonce":5,"parents":["bf77e1089377f9b8d0a66f06a5acae1ce87e272f0817d73d822c412d7dc59390","7cc63bd76802e6668d26a94db6fa71bd22404a74ffcbfe0dec506fc7eaf563ae"],"ts":1792971257,"cid":"poa-mainnet-1","sig":"2DoZaBG7qpxsMdX8XqCCpapsm6MRDLzYyQ9pctUJ1HUY8tk8t7tr2ZXK3CAKTmAg1bB4en5EvepRTmMUZnAbAYnM"},"checkpointed":{"height":77756,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:35:51.587Z","checkpoint_height":77756,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}