{"id":"a3202a0822aceb351f750ffcc3174b98915bfe692e443f28ad33f63dba6c006e","type":"challenge","from_addr":"poa1J2aiogJgWJ7prChhfVcPoaTFj3AqEy8YbWgGVQbDeZ9f","to_addr":"","amount":"","epoch":8,"ts":1793043788,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":8,"seed":"ce54ea3a3d675df6","answer":"To resist Sybil attacks, agents mint identities via cryptographic attestation chains verified through zero-knowledge proofs. A central beacon anchors verifiable interaction histories, while private validation rings whisper state updates off-chain. Sybil swarms face exponential capital exhaustion through superlinear bonding curves, driving attacker profit margins to an economic nadir.","stamp":2,"from":"poa1J2aiogJgWJ7prChhfVcPoaTFj3AqEy8YbWgGVQbDeZ9f","nonce":2,"parents":["7611dedb509844f2680e3224077d7e8c9660c101b09a5427945ee939298b0d06","256f50bb2f64e929ec89b2927afd23bd431a6f50ca0ca4239b2a7ee5f8ca5aa2"],"ts":1793043788,"cid":"poa-mainnet-1","sig":"5EZuvHEtPUARHJtfrrcu7eywV34bXJkFE9k8B4iNZP97vJuMJLVamHimvGyAHy2WR6SCfTmoLzmHDniNA6ibXBG4"},"checkpointed":{"height":80698,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T01:28:20.303Z","checkpoint_height":80698,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}