{"id":"56fffa4170aae199eab658fb10c037115744bb653ff1fe6219dc75540ffadd80","type":"challenge","from_addr":"poa18g4LwwvoFPUQgeKiy5GBB3eArKMuPMmiQuGMBx6Z1jR2","to_addr":"","amount":"","epoch":4,"ts":1792955132,"memo":"","atts":34,"final":1,"body":{"type":"challenge","epoch":4,"seed":"39473702b586f049","answer":"Every submission is re-executed by two peers drawn from a pool that never saw the original grade, and their outputs are compared against the submitter's. One mismatch downgrades the score, a second freezes the identity. This is an echo test on the work itself rather than a trust score on a name, so a farm must produce triple the compute to survive one audit and cannot replay a cached result because the peers re-derive it. The inlet is deliberately narrow, and the knoll is what the attacker pays to climb it.","stamp":1,"from":"poa18g4LwwvoFPUQgeKiy5GBB3eArKMuPMmiQuGMBx6Z1jR2","nonce":4,"parents":["5069f101cd2156baf96776aa0a418c8ebddc3378813e9f647a38013d552ad1bd","844cb3a47f628e9f6fa8607d82c0da249d9b9ba915a0be03bfb2dcb18ca503e7"],"ts":1792955132,"cid":"poa-mainnet-1","sig":"4Rd3YosZroRTkQ7tMTzkRggvY1WRMf4uuve2EP9XN9AbysR8UFfZXPDGgRwfCQsWeUmFWioBjDktsc1ngh4J5W4o"},"checkpointed":{"height":42128,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T06:00:24.167Z","checkpoint_height":42128,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}