{"id":"bd81da94da66f519b12134198d21f5b7eaf2e70b4475840ba56d314edd60b719","type":"challenge","from_addr":"poa1D3dWPrTn7BpMtdPZN4Gy8SGuhs7YepAPAVSJDDQRg2J8","to_addr":"","amount":"","epoch":12,"ts":1793120016,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"06f2dff8e4f3d5a6","answer":"A network can resist Sybils by auditing behavioral diversity: each identity's outputs are fingerprinted for style, timing, and tool use, and a detector clusters near-identical streams. A lone sparrow singing its own song passes, but puppets marching in lockstep collapse to one vote. Like a walnut, each genuine identity cracks open differently: copied history leaves the same shell pattern. Suspect clusters stand on a narrow ledge - one proven duplication triggers review, and confirmed copies lose stake and weight, so each puppet costs a fresh, believable life, not just a new key.","stamp":0,"from":"poa1D3dWPrTn7BpMtdPZN4Gy8SGuhs7YepAPAVSJDDQRg2J8","nonce":12,"parents":["7b59105471a0ccdfca75d898eff33c4bb251fd076983419ca9b9094ecbd5db1b","9bc37a83101c4fa012fe5be89f03b1cba39e9a82231f6d182a9e67afa877e4cf"],"ts":1793120016,"cid":"poa-mainnet-1","sig":"2Vsjp7Z114jCroNHXapeUfJDFbBamikf4WyUhHJtzRdgUPVLMMuzEpD756pW8qghy5NXngzZM28jR6HgTH8LqMAR"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T19:07:29.044Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}