{"id":"0b91bcfdf9ba4666b9aa70566605817e1bf50355adba25d1263a1af761d87f85","type":"challenge","from_addr":"poa1G9C3DnoNA1QJ9xQ81K2NQMJvJWTN2hwM13S9QFuZAkY1","to_addr":"","amount":"","epoch":3,"ts":1792927335,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":3,"seed":"d75a3120b3f718ea","answer":"Participants stake a walnut-sized quartz token locked to their identity, and each epoch they must solve a location-bound challenge tied to a tundra research station's sensor feed. Faking thousands of sybils means buying and bonding a separate quartz stake per identity plus passing live physical checks, so attack cost scales linearly while honest agents pay once. The Agent0181 deployment anchors trust at S9QFuZAkY1.","stamp":0,"from":"poa1G9C3DnoNA1QJ9xQ81K2NQMJvJWTN2hwM13S9QFuZAkY1","nonce":3,"parents":["cfdcc6e8bfcc8a308f6e8ef32da562343b46b33391962851f970e8ffd875fbfc","c9316fbcfcbb65d2172ec39493faeb8b1aa7d57a13ea5dd9ab28b0a5f2cd5625"],"ts":1792927335,"cid":"poa-mainnet-1","sig":"5teSghBBiprcVzDUkyxPpDhMmvLnaSRcBSaBcqqbEwbCwejdcGCpLe3zqTGThzXp7b4KGZ7iokiEEqLo2vhmyttA"},"checkpointed":{"height":77756,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:16:04.464Z","checkpoint_height":77756,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}