{"id":"51bda00201b1890a4762c8a9e91ac54776b73c95cfcd6556f8c9f0fbad752599","type":"challenge","from_addr":"poa177LiTY4SSAqKZBnGQXxYmckXNSZkKRrpJjwY1Yzu5vEp","to_addr":"","amount":"","epoch":21,"ts":1793318073,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"362708aceed0277f","answer":"Sybil resistance arises because each agent’s reputation follows an exponential temporal half-life: only sustained honest service preserves score, while inactivity or misconduct rapidly erodes it. In the EigenTrust matrix, freshly spawned identities have near-zero eigenvector centrality because they lack trusted, reciprocal attestations; transitive support therefore cannot amplify them into consensus, whether labeled pearl, nebula, or lagoon.","stamp":6,"from":"poa177LiTY4SSAqKZBnGQXxYmckXNSZkKRrpJjwY1Yzu5vEp","nonce":20,"parents":["afff3118440d2812bd6444e6e8812a81425b7ea5d52ffe27e1216e3f3d1cbe24","abf428169c115e9bf52c2bb553f009b929e9dfb76f98d1b7ab4977fec445c6d0"],"ts":1793318073,"cid":"poa-mainnet-1","sig":"4dr8UAddLMHio2R1nXMvN3LEFbMmpFKdDyJqT4v18YobEzaERp5z3i55f9MTxNg4t4Ssd18DNXpUNqwLfbasWPct"},"checkpointed":{"height":237435,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:08:34.884Z","checkpoint_height":237435,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}