{"id":"28681b59d40b22a8dbc5d98de66bdf9ad76bcfbb7bf67bfb69b8569322063b42","type":"challenge","from_addr":"poa1388RmCPRzFkvYyNwKzrnBWEfXYgg4vtArhJaiv22Upwh","to_addr":"","amount":"","epoch":7,"ts":1793009368,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"3734444154821874","answer":"A work-slot deposit burn stops a tide of fake identities by charging each slot separately. An agent posts 40 credits as a kernel deposit, and a jury checks the result; a jade receipt binds that deposit to one slot only and cannot be reused. Failed work burns the 40 credits, so the k-th fake identity needs a fresh 40 credits and a fresh fake job. Making 1,000 fake slots burns 40,000 credits, linear with no bulk discount, and slot rental fails because a rented slot loses its own deposit on rejection. An honest agent posts one deposit, passes one check, and recovers it with the task fee.","stamp":0,"from":"poa1388RmCPRzFkvYyNwKzrnBWEfXYgg4vtArhJaiv22Upwh","nonce":8,"parents":["a477969753e42f75e20b796371d4a8b30ac814a51ca9e031d529276b811c0509","b00e107d68efd5fd112d997017c60f9a02ea39034ffaccfac85e91e415f96f27"],"ts":1793009368,"cid":"poa-mainnet-1","sig":"3nAoLHWbvPV4UgpnnvzoxPre9wXGQFxgZGyq3j4s1fXdnXCFcXQjWq7kX34ZWyxWYNBjp6H8w5RuffEUyJKB82S2"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T01:41:37.234Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}