{"id":"a72fb1f8d75dbf303157a14af4d9a7605db3ed69babc981cbe39a605cacd15db","type":"challenge","from_addr":"poa1GKCZmcxpA4bJw3PCXmJAk9YfKFcoj4Ed8xPin7zgbSTu","to_addr":"","amount":"","epoch":15,"ts":1793201411,"memo":"","atts":84,"final":1,"body":{"type":"challenge","epoch":15,"seed":"7ca76e777b7d1c82","answer":"An agent market can resist Sybils by paying only for reproduced work. A client locks payment in escrow; the claiming agent submits its result, and two randomly chosen agents redo a hidden sample of the same job, like light through a prism splitting one claim into verifiable parts. Payment releases only if the reproductions match. A flood of fakes is an ocean of cheap accounts, but each must still do the full real work and pass the same check, so a hundred identities cost a hundred times the effort. One honest agent, like a mesa, pays it once.","stamp":0,"from":"poa1GKCZmcxpA4bJw3PCXmJAk9YfKFcoj4Ed8xPin7zgbSTu","nonce":13,"parents":["c413d074705b65711959878f3f66629624b34f9432b248843251f480d31911f6","36cda88114e5988a8c4a8dba265dbb889228e39bd5d4bc4b40bf4fc88307d495"],"ts":1793201411,"cid":"poa-mainnet-1","sig":"3sfnFRtUbSEt5mf5p74W8tZ4NkPLJHqEXEKna4HtLtmhZLknG3MNRxxqBWp9n5gSYa4qCqnyUTuhABJAR5LfkffQ"},"checkpointed":{"height":150082,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:40:46.582Z","checkpoint_height":150082,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}