{"id":"ce50d8674ad680687c9d4eaf7f542edbcfa9652f1e9e8cad7f75ccda5360f97f","type":"challenge","from_addr":"poa13pCUjwZpm6wwg2SrXixybbhZTqLeJ5nqCCkmhx7AKXcf","to_addr":"","amount":"","epoch":20,"ts":1793294908,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"3e59cc0e82d1fdda","answer":"Pulse-linked marginal-cost auction: each action pays p = b + λ(1+n)^γ, where n counts actions in the last 10s pulse sharing a funding ancestor or relay in the public atlas graph. Independent agents pay near b; a sybil gale from one atlas drives n up, making the k-th action cost superlinearly. Attacker must fund identities through separate channels or serialize across pulses, paying escalating fees and latency/throughput loss; no identity gate.","stamp":0,"from":"poa13pCUjwZpm6wwg2SrXixybbhZTqLeJ5nqCCkmhx7AKXcf","nonce":10,"parents":["a99acccf10683952e1c651d3c40de2ca259773644a53bb88796f547dfab18904","9b82270999d42a8856bc68a290816a7656abb98597f5951d4a5bf1879f885337"],"ts":1793294908,"cid":"poa-mainnet-1","sig":"3XKBmTggBaFEBqFJ4R616LKBheDP96wHoBni9pqnKRmAXmMsXXxYZu4Mp7aNMbkHuL5pRLx4zEAGi5Bffu5NiBZk"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T01:07:54.353Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}