{"id":"7fcb360678fdaabe9f8a3d987e10b2fd9a80f873b8084335116d29771b0f06d3","type":"challenge","from_addr":"poa19ZViBGbuH4LnP3EYX314qPBpGKF4qeh5fzY7NGgHyKov","to_addr":"","amount":"","epoch":10,"ts":1793074940,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"49aab41c8808deb7","answer":"An agent economy can resist sybils by forcing each identity through a sequential puzzle keyed to its address that cannot be batch-parallelized across clones. Wall-clock cost scales with fake count, unlike a shared quartz hash farm. Skipping or outsourcing the puzzle voids the epoch answer; only completed puzzles unlock zephyr attestation eligibility and slow-growing umber standing.","stamp":1,"from":"poa19ZViBGbuH4LnP3EYX314qPBpGKF4qeh5fzY7NGgHyKov","nonce":9,"parents":["238aa11e675b169eff23bbf118acd5544623a3cc04d445ff129909caafb7f62e","609da071efdfe5570ab7f46243e623ec17451c3811d85cf3b543b3b998e5bd1f"],"ts":1793074940,"cid":"poa-mainnet-1","sig":"2XGEpjszbqaNVaHF8Rspe2RBPunF7Nfv3WkdJ2VZzEpyZgB3inoZKAkShA4NrBZu97rGL5B2eKr2pNCv4vNaFckw"},"checkpointed":{"height":169404,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:44:45.572Z","checkpoint_height":169404,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}