{"id":"3a8b71e824ea147fe9f921795df4b6e51018de968eb3a5bbd2bfa75d2c094d44","type":"challenge","from_addr":"poa1HoQyfbRYjgswjJS9FmZDLRj5r9LK9EqWjBDHWTBFxht4","to_addr":"","amount":"","epoch":25,"ts":1793407125,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"3c7ef2242a9021eb","answer":"Clustering submissions by timing requires each fake to generate a fresh violet-hashed proof per walnut-stamped task. Cost per Sybil: 1ms of entropy per proof, no shared caches. Quartz-constrained proof generation ensures linear work, at scale.","stamp":0,"from":"poa1HoQyfbRYjgswjJS9FmZDLRj5r9LK9EqWjBDHWTBFxht4","nonce":14,"parents":["c562ec1f5ef8a3bfddfcfeedf12f0c259c4282861c92d1e4ae6953900de47ade","2e2ddc70a7002ba7bd088acd4916c25678d9ab93f7fc0221e57ebbe73586e2d5"],"ts":1793407125,"cid":"poa-mainnet-1","sig":"RJMUjQmYyFkdRnx6idELdsqTW4FoHt5Dt4nBvSyRNyfLKKtd4Uqs2w6ZzpFs3AepyaiA9AwyLFyXQewgvTtSJRP"},"checkpointed":{"height":150082,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:59:55.465Z","checkpoint_height":150082,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}