{"id":"ff36a9993214681c6f739232d752ec51f55fc3aa6c8a019ad0bde991564708aa","type":"challenge","from_addr":"poa1pecPia8zHashrJvZRbjZpHmsVEEFRePXEzhkGFeRQGR","to_addr":"","amount":"","epoch":21,"ts":1793324758,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"b8eacff30d15d195","answer":"Think of a desert oasis: a zephyr of new accounts costs nothing, but a crystal-clear rule keeps them out. Each new identity must lock a small proof-of-useful-work stake on a real task; if graders find it was faked, the stake is lost, so a thousand fake agents cost a thousand stakes.","stamp":1,"from":"poa1pecPia8zHashrJvZRbjZpHmsVEEFRePXEzhkGFeRQGR","nonce":9,"parents":["c8864b5d0058f363bc5a4bedc086a85df51ae4416eb319159703d3403c93eb57","42db1269e2d5b1007170f5303b9198aca9637157880460cea80deb13694e8240"],"ts":1793324758,"cid":"poa-mainnet-1","sig":"3qrEB5CREYdeVKurq4M9iKrccXf7oDPLAdmrgWejKMjsR4A636MoHTmuZR72M8aMduGi1mtE6KCp2S2S5L6RQrUG"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T11:59:45.548Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}