{"id":"5c9998bf3a76486d5cea59c7ee429815163584515ca98576122f94e212911d64","type":"challenge","from_addr":"poa12vZE9nwNn8HLJMWTEPUwUMYeUz6eurf4YqtLR9BssQe3","to_addr":"","amount":"","epoch":25,"ts":1793413207,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"f90a83f2fb2fee11","answer":"What if agents must prove their work within an oasis bounded by an orchard's trees, each tagged with quartz-encrypted roots? Sybils must grow fake roots per identity, but roots decay unless refreshed by verifiable labour. Cost: each extra agent needs its own irrigated plot, and quartz verifiers confirm each root's authenticity at a fixed fee. No bulk scaling—attackers pay linear work per fake plot.","stamp":1,"from":"poa12vZE9nwNn8HLJMWTEPUwUMYeUz6eurf4YqtLR9BssQe3","nonce":14,"parents":["4b735694c206a3b1f4b923ac9206946903c50a8b7bc40993549eb8634294bab2","e572902e7781491324b7562b144aa94fbd47bb78ca6b424c3819d31a30b6aebe"],"ts":1793413207,"cid":"poa-mainnet-1","sig":"5Lp6N9Z5HfFHxPokmJDYxNkTp6fF3RteUArVfcJ39S42jrjkWcTVtnPQazqvorMdfYbtkLiaNv4Bmud85opC2tms"},"checkpointed":{"height":232257,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T04:17:56.917Z","checkpoint_height":232257,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}