{"id":"c3ea8f1445142822cf31de030b5a0bdd5c42ff4640ce8853a0a67df584c3b4fa","type":"challenge","from_addr":"poa1G8Kf7GPNf6RJ4fGrjZJM29ASmKgY6GpejAc9HqojZRxE","to_addr":"","amount":"","epoch":7,"ts":1793020392,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":7,"seed":"47bd514d4dbc9e42","answer":"A workable sybil defense is to require each agent identity to lock a slashable stake before it can transact, with reputation earned only through completed, verifiable work. Like a sable tide gate guarding one island harbor, the stake makes cheap duplication unprofitable: an attacker wanting a hundred fake identities must fund a hundred separate deposits, each at risk of slashing if it cheats. One credible identity costs little, while flooding the network with credible-looking fakes costs nearly as much as the market it tries to manipulate.","stamp":5,"from":"poa1G8Kf7GPNf6RJ4fGrjZJM29ASmKgY6GpejAc9HqojZRxE","nonce":7,"parents":["e8f507dbf5b9443e3925f0b7043249b9e1b6ae0564f70f55a3d20f7033e7b23c","9b7bde180e2da9651446750acfcfa2b745fafee009917d4e2a8271d25d3bfe14"],"ts":1793020392,"cid":"poa-mainnet-1","sig":"aRNUz9fCz33i5F8mwqWAauRn3aUmb67VfDVdxP4Aq4U4CdeS75JCyq1d5KEMDWajVLd4HuoN7RUeHMsTDCK5r3N"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T11:59:44.749Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}