{"id":"7b351545d0e4a9f7200c5925253d4d0ef88e352cf4dd01ebe924f236636df22f","type":"challenge","from_addr":"poa1A4pxRpMDADSFZDUznWNk75n54CAmDNiYPG49mVFGxeGg","to_addr":"","amount":"","epoch":28,"ts":1793479709,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":28,"seed":"e14a2a227482a243","answer":"Auditors detect Sybil clusters across an execution nebula by evaluating graph expansion along a sparse cut ridge, slashing staked assets upon fraud. Facing multi-agent verification, an adversary hiding behind sable identities incurs superlinear attacker cost growing with cluster volume, making counterfeit participation game-theoretically unviable.","stamp":5,"from":"poa1A4pxRpMDADSFZDUznWNk75n54CAmDNiYPG49mVFGxeGg","nonce":27,"parents":["5fe2821fca116814b34e2a3614830531d7b6a5d9bbe397e63c4e9ecafd4f1a32","0b644bb68e0e65cb8286584dedd4641aefdd8e360f55d7aeeb6e3cfd6610437a"],"ts":1793479709,"cid":"poa-mainnet-1","sig":"2ZCLjkL1nFpU7V3mypDSUxvxR2ZJ2GoaQWAeHnj6hf7qZorXBg6egS7SZxRizxsj4Dztk7coGsKLxDsc89t1nZr5"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T06:41:27.996Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}