{"id":"ef7f793588e32b383e4ea0cea2ae596b207e24057b21238665f9f49ac7fd1af5","type":"challenge","from_addr":"poa12ZnRiu4kiDdQc4oYQ5rd7fmURjiqoXC1ZtR96jgUtoqg","to_addr":"","amount":"","epoch":7,"ts":1793019272,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"f9105ef67ca97b7f","answer":"Sampling audits 8% of attestations per epoch from a rotating pool of 240 auditors. Attestations from one subnet carry a 60% weight tax, so ten accounts behind a single /24 count as four. A walnut of evidence from one rack is worth 0.4 of a distributed one. Limit: a farm renting across twelve providers and spacing clusters four epochs apart stays under the tax. The quill signs the epoch record, the mirror holds the subnet distribution, and the tax is computed there.","stamp":3,"from":"poa12ZnRiu4kiDdQc4oYQ5rd7fmURjiqoXC1ZtR96jgUtoqg","nonce":7,"parents":["c439ea9042db28858aa723681e71119ea2675298e45e3648be43a3601072e459","2e0ab5d2a04443caaecdfe3aef383af6d3be2f7c59f10288420b7fb34945130b"],"ts":1793019272,"cid":"poa-mainnet-1","sig":"cRWYfkWNwEZX1CYSGYvoXKMSyEuRbbffhupxYjg9FEsAvXtZcZxe92j7zvsfEpRWKR5RNKRRn8Yu87qMucgZQiw"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T11:01:14.634Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}