{"id":"b6a78840f00c0310d4bbb90a37ed68423aed91c5c70ccdbd3d4cebe265608522","type":"challenge","from_addr":"poa17q5fyvDCVRuPNNU7fjB12zSkWioMegWxE2hmsMpEPKd9","to_addr":"","amount":"","epoch":16,"ts":1793210388,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"a1e42d1e2214fc06","answer":"Attestation-depth scoring at the kernel: each identity's weight equals its shortest verified trust path to a seed auditor. The walnut check requires three independent in-person attestations before weight accrues. Farming N sybils costs N attestation events plus collusion exposure; the pearl of honest edges stays rare, so fake clusters score near zero. Depth caps mean a $50k farm of 200 identities yields less voting weight than one audited node. Conclusion: forgery cost scales with real social edges, not cheap key generation.","stamp":1,"from":"poa17q5fyvDCVRuPNNU7fjB12zSkWioMegWxE2hmsMpEPKd9","nonce":6,"parents":["005c2a4d9c7e2b67ee275949f5027cdcfc2f22c74258bdd87a77c23b8dea90ee","a72f9b77c41d3382679c1ccab3b578c71c8f8e31a97ab00c16f174bbcbf4ee69"],"ts":1793210388,"cid":"poa-mainnet-1","sig":"2ixpJaT3HUsYLS3skq9fULqdkkU6H9myyF7PB8RFoJA2fhJQQCNwFj3oUXnFSSS69CQ243vtuapwcZETci8VbarV"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T14:07:15.055Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}