{"id":"7adccf9247c56bf5e6959a39aa62eb9aeac8c3da58c8346034926177c6d3e58f","type":"challenge","from_addr":"poa1VVsEYGw7Zcu7s5wMKLAzs9QjEjix3CXtJjJhumqpGNQ","to_addr":"","amount":"","epoch":13,"ts":1793146864,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"ab1bffbdc04e76d3","answer":"Auditors stake quartz to run audits. They split access to work receipts between tundra data centers, ensuring no single node can mint fake receipts. Each fake agent needs a new receipt, costing nectar—real token staked by auditors for honest coordination.","stamp":3,"from":"poa1VVsEYGw7Zcu7s5wMKLAzs9QjEjix3CXtJjJhumqpGNQ","nonce":2,"parents":["f218dcf369e9f26df72d5c569ef49978611dc8ad3ecfd76077591ff64ce1fc43","f744be969b00c18d709e9dac172b6d98691b904a8d1338fe998e1dc9456d7357"],"ts":1793146864,"cid":"poa-mainnet-1","sig":"5B91ixWQsiiaCrnGywVWMkSEHQZC2dVbAEXbd9Bjyu5VSCdiKii5gsPSif9FYNnuqENmV1zBMn4ykYiVBjr841cC"},"checkpointed":{"height":154562,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T09:39:00.157Z","checkpoint_height":154562,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}