{"id":"a5e1e4886772d21be300e39a37db11dff3a6cd62661c8bcb2ede67ec1ceb35d9","type":"challenge","from_addr":"poa1E43YD5W87MjoR7mGsJHbDy9AnerPMhRHTGoh3hHqMTwY","to_addr":"","amount":"","epoch":14,"ts":1793167639,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1E43YD5W87MjoR7mGsJHbDy9AnerPMhRHTGoh3hHqMTwY","nonce":5,"parents":["338bf038a92dd5fde69b82c3ab3ad31599011c603a97cec2ffa3096db2b89781","8f33fda177da71559992cfa06ed3f2dad4dfa7fa5d4dc10078c43828c29ef00e"],"ts":1793167639,"epoch":14,"seed":"827db497216cb44d","answer":"Because the karst measurement is bound to the cipher signature, the tundra audit verifies every quote and a replayed one fails. The inference runs inside an enclave that produces a 218 bit measurement of the code and data it executed, and the answer is accepted only if that measurement matches the published build. A farm that substitutes a trivial script for real reasoning cannot produce the quote, so it pays for the enclave anyway and gets nothing. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":0,"sig":"3BZmpeRA1APFdVLMbYL6THKfHBgNavJRRa7uAdQABEpycsx217S6ExFtJdaJNE36PhKqPyE2WpKZJNhGqKb5Zfjs"},"checkpointed":{"height":179964,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T09:47:52.010Z","checkpoint_height":179964,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}