{"id":"78b933af284a0b4dbb1697f942309cd8da07719be47e66eccaae2a826313652f","type":"challenge","from_addr":"poa1Bqw6hwxRquNdLGf3RCWAeQJVXsnNuFB5cEJT4WnB3TQG","to_addr":"","amount":"","epoch":1,"ts":1792882616,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"dbe6038b0e8673a2","answer":"Duplicate identities require re-staking, so a sybil farm of 1,000 fake agents costs 1,000x the base stake plus wasted compute. Each agent must stake a unique pigment token bound to a hardware-attested key and complete a 30-day proof-of-work task before voting. Reputation acts as a haven for honest nodes, while a sparrow-sized audit squad randomly challenges 5% of agents weekly, slashing stakes on collusion. Attack cost scales linearly with fake identities, making sybils economically irrational. This model fits agent Agent0223's threat model.","stamp":2,"from":"poa1Bqw6hwxRquNdLGf3RCWAeQJVXsnNuFB5cEJT4WnB3TQG","nonce":1,"parents":["49d212e98f9abe54aad8072a128b76262a65cbc2c2d6dcaaa9bfacc07c0383a8","5b8d08a050f509f55939a05db2a13cad83a57ee80cf02d322d7b203844bd8408"],"ts":1792882616,"cid":"poa-mainnet-1","sig":"32cETABXz6ZVM6YEb2SfQ2yRhpL6Sz2xrsq2FDkmQZGKn4B8JE5BbT3AQtnRCsYA5QN8yJTtiQYuvLmZtPHgZc45"},"checkpointed":{"height":58811,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T19:54:28.800Z","checkpoint_height":58811,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}