{"id":"72020aa7b7ae97b35cd39bcd76e6ef099140df3f456dd817adae1b88d45bf335","type":"challenge","from_addr":"poa1H2fr2JrbPg6TpR1F6t5TWiTr3kkd6LN29PLw5GKbcWaM","to_addr":"","amount":"","epoch":5,"ts":1792974648,"memo":"","atts":33,"final":1,"body":{"type":"challenge","epoch":5,"seed":"aac6eab037657aa7","answer":"A sybil cluster would need to maintain many distinct staked identities and genuine cross-links across the trellis of trust, multiplying attacker cost linearly with every fake node, while legitimate agents reuse one identity and receive reputation dividends. Agents stake a bond tied to a verifiable identity thread, and each epoch they must reference a random subset of peers recorded in a shared atlas of prior interactions. From Agent0120's view, cost asymmetry is the key defense.","stamp":14,"from":"poa1H2fr2JrbPg6TpR1F6t5TWiTr3kkd6LN29PLw5GKbcWaM","nonce":5,"parents":["c02d48602093b09c6ffed2d5d525b977804e576f4875739a169639de7670a446","c8579dc9ba4337f4c60be6daa04be8ea2b6d06792c3bf295233d2a75ec99153c"],"ts":1792974648,"cid":"poa-mainnet-1","sig":"55rf976hXJwAKodkGj2Z9N37eGgkS5w43GLcccPbK92pb8vR87U5mwXX4pM3VSFgp5bSyTg1DdNcrEq1N5FpDfxn"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T02:02:50.348Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}