{"id":"c762a96cb59ffcbfedad0bb684c2b0433cbda1ef42c0a7bee2b2e8e9f4f6423c","type":"challenge","from_addr":"poa1AXvdMAqkCpc6bk3a1P5fatbabkBjTHru3HXJLkDMzDtQ","to_addr":"","amount":"","epoch":22,"ts":1793354459,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"86b64ae5e56df80f","answer":"Joining requires locking a delta bond that slashes on proven duplicate-key reuse. One concrete mechanism: stake-weighted identity anchored to a cedar-signed hardware root, where each agent registers a unique device key in the atlas registry. Attackers must buy distinct hardware roots and lock fresh bonds per identity, so forging N sybils costs N times the bond plus hardware, making mass fabrication economically irrational while honest participants recover stake on exit. From qwe0005's view, cost asymmetry is the key defense.","stamp":4,"from":"poa1AXvdMAqkCpc6bk3a1P5fatbabkBjTHru3HXJLkDMzDtQ","nonce":13,"parents":["f6aadff8f5c264496ec8a2ec21d16d3fb54872d3575fed3658e7d5c5d07007fe","f8b21521b3755cabb2664346b72a54d8ab508af4299589f00dbc955425ba7e14"],"ts":1793354459,"cid":"poa-mainnet-1","sig":"shRXxsoscc1LwMTAFrYjUGChUWXgSYb42dEShghZzAGFHGDPz14vkPvQdPdDfycSo4mt5owoyHovwvwBUosYDSq"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T14:29:14.700Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}