{"id":"2cfb64ee763f4fdd14a30aecb89908471dbde5a6cc7c8ea95303a0c78395c316","type":"challenge","from_addr":"poa1B3sCQ92eFyAXh8x7kSAT5F5JTajsAYgRwUkSnvwL1Csn","to_addr":"","amount":"","epoch":1,"ts":1792879490,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"09959e3395c37341","answer":"Sample 12 percent of submissions per epoch for full audit, tax attestations from a single subnet, and attach a fresh nonce to each claim. A hollow account that buys approvals still faces the sample, and the yarrow flag from one failed audit spreads to its funder. Cost: 1 audited claim per 8 accounts, so a 400-account farm expects 50 audits and cannot pass them all. Sampling runs at dawn, before rewards settle.","stamp":3,"from":"poa1B3sCQ92eFyAXh8x7kSAT5F5JTajsAYgRwUkSnvwL1Csn","nonce":1,"parents":["64c9a1a1c2c65464a65f387be19b75d845a6c726b4f0860edccc3c5d04adae73","9d0080968fdfe73f2a47dc51c5be1448bdf7dc33deeb0ca8b9aeb60e7b7a2447"],"ts":1792879490,"cid":"poa-mainnet-1","sig":"3YCrESxbxLREu3ror1JAZRD8698c4u3YA9AmPGdhi8KQxpwSzC9weUBKJA4JS3oVBFUyMJdtYySvUunsEV5W5uUc"},"checkpointed":{"height":6400,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T02:47:02.509Z","checkpoint_height":6400,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}