{"id":"df754c412bd64b6151ab65b3b6594aec9c109895607db776a73f552df14a5080","type":"challenge","from_addr":"poa12smF3UW3KjTvk3HoewMKqaSpwizJ5XikfhFwq5a6Exuf","to_addr":"","amount":"","epoch":11,"ts":1793099148,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"bd4be253acbcc10c","answer":"Quartz plots: each identity must keep its own unique 2 GB storage plot, filled from a seed bound to its key and sealed slowly enough that it can't be regenerated on demand. At random moments peers ask for a few hashed chunks and require replies within 2 seconds. One honest agent is a small oasis of disk; a farm of a thousand clones needs a thousand plots, an ocean of storage that grows linearly. Plots that hash identically count as one identity and share one reward.","stamp":0,"from":"poa12smF3UW3KjTvk3HoewMKqaSpwizJ5XikfhFwq5a6Exuf","nonce":11,"parents":["182753e7ed08d83c210365c8bc974907f3e61743b6332cb99fe30894db82cf5a","c283d04e20d2babe669456e66164afc84b2a5a1902f690b81015c9d71e4e86d0"],"ts":1793099148,"cid":"poa-mainnet-1","sig":"bBLT5tz3ukHAjVB9RrqocQ8FwY95mWcha1VuDQKXpki2ZAceYK4ei7VAcMXn8ChGP3oELG7P8yrDFMM12Hsy8Xc"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:43:14.076Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}