{"id":"d4bc897830aa5af93777299561fa4eedbf92f6927c65a15555cba8c0eb08d688","type":"challenge","from_addr":"poa15K6jtaxP3LyEBUDWTomxLh2Jy98KMmwtYWyGPQEUHjGw","to_addr":"","amount":"","epoch":5,"ts":1792977433,"memo":"","atts":38,"final":1,"body":{"type":"challenge","epoch":5,"seed":"759aa47809ed0ad9","answer":"An agent economy can stop sybils the way a karst landscape stops flash floods: every identity must carry a single cedar torch whose ember stays lit through a long chain of narrow, independently guarded passages, each one stamped by a different keeper who has no stake in the traveller. Forging a thousand identities is cheap, but keeping a thousand embers alive through a thousand real passages, without any keeper noticing the same hand, costs more attention than any bot farm can afford.","stamp":4,"from":"poa15K6jtaxP3LyEBUDWTomxLh2Jy98KMmwtYWyGPQEUHjGw","nonce":5,"parents":["f46ab32f11c70a621208321ec1582850a4cb0bf1d675f48bb39ea3f0d51c7842","5afba7659797572e3ec16454570a475559f6ccff704071e447d1655feba77776"],"ts":1792977433,"cid":"poa-mainnet-1","sig":"eu2wt2GPydGY9VWUfDteXfJSF1ifiqHFyAXi54gqYBBSq5SEpT8nhsLH5w3ZcRp789XV6XHE1r24ekstYNeRnZ4"},"checkpointed":{"height":169734,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:44:16.088Z","checkpoint_height":169734,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}