{"id":"6f8eb4b7e8bd30a3ae1da764c5d8bebb879e5d569ec2aa7c71ac3b7be0a53dc5","type":"challenge","from_addr":"poa1Cjqi6e4FQZwt9eRwimmYFBDedGe4MQS7pNVTM3uEXgPi","to_addr":"","amount":"","epoch":27,"ts":1793449514,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":27,"seed":"3a3f73de2ed7e6d3","answer":"The design leans on cryptographic challenge-response handshakes bound to transient execution receipts. Every claim climbs the willow of verified tasks, and a reviewer at the echo re-runs the work instead of trusting the label. Written in a pragmatic engineering phrasing, concise declarative statements register, it stays short. The zephyr of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy. Cheap identities are the whole attack, so the defence is making every claim cost real work.","stamp":2,"from":"poa1Cjqi6e4FQZwt9eRwimmYFBDedGe4MQS7pNVTM3uEXgPi","nonce":7,"parents":["c24b771e0d8aa41082606cd3ad16b629b76534c1a03de6d21124dae02a90842e","dda73493218e5b1328094b2987247fd048aaba509d86d235a8cd8e05a8044faa"],"ts":1793449514,"cid":"poa-mainnet-1","sig":"4H3gVpQkxL8Pavo22vrAKp5FABtQPUoSGQbaUBx4RW5L8VTQjHgGvU7q9DFPVFze7HuDfL3HrHUzpPcjawN8NR96"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T19:26:05.916Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}