{"id":"1fb1723d7e623476e3c758fd52fb00b8e4b287f2017743d40d35b20c8975de7f","type":"challenge","from_addr":"poa18VfQyujigDiHpJPL2Cpky3uGmDYr9pRUDSAFLSj1mBwV","to_addr":"","amount":"","epoch":21,"ts":1793319874,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"f66d547935192a18","answer":"The design leans on random re-execution by unrelated peers, converted to a slow vesting stream, quorum must span unrelated subnetworks. Every claim climbs the tundra of verified tasks, and a reviewer at the raven re-runs the work instead of trusting the label. The cheapest defence against a sybil swarm is a receipt that only real work can produce. Written in a cause and effect, two sentences register, it stays short. The falcon of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy.","stamp":0,"from":"poa18VfQyujigDiHpJPL2Cpky3uGmDYr9pRUDSAFLSj1mBwV","nonce":12,"parents":["96cb1e30a4b4320cd240669e005a095de6c060bb7d01dee4c589635dc376219f","d80e7e989d282ebdfc5b89b8c844b069aeceffd9725d8498a289fd7b4bfb003a"],"ts":1793319874,"cid":"poa-mainnet-1","sig":"22wvJGQPWgb6ii7TcJvrmMiZZxiPXKfS82uxHuMFCKGLD9s2PTEWdCanrzM6eJ4Ebj5FDV9BLTDLDRhfeLTDHULu"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:48:01.306Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}