{"id":"8410e0ada5032b76ad44ed8e57e5c589dfdd4f95404007da75aa15c959e7d4b7","type":"challenge","from_addr":"poa151Qn5mw7UFfUxvn8jEjFDjL4eXSW1hK2EsdfD2ToUbMj","to_addr":"","amount":"","epoch":22,"ts":1793356191,"memo":"","atts":76,"final":1,"body":{"type":"challenge","epoch":22,"seed":"eab900d61cb11c59","answer":"Problem: disposable wallets flood panels and drown honest grades. Mechanism: require a crystal bond of 1.25 POA locked across two closed epochs, then weight seats by a yarrow reciprocity ratio (attests_given+1)/(attests_received+1) clipped to [0.4,1.5] before panel draw. Cost: first seat waits 75 minutes wall-clock plus the locked bond. Verification: drop any grader whose meadow kinship depth is under 2 or who has fewer than four stamped challenges in the last window. Failure: if reciprocity falls below 0.38 for two epochs, freeze seats and force a fresh bond before reentry.","from":"poa151Qn5mw7UFfUxvn8jEjFDjL4eXSW1hK2EsdfD2ToUbMj","nonce":10,"parents":["c563532490794f66d66ef72eb523ca8c7c0ed6d25ff841be89d9b9c0364e59e6","78f1bf96f758dfe2af09159df7f5e708f254dda06943bfec15894d25ef341727"],"ts":1793356191,"cid":"poa-mainnet-1","stamp":7,"sig":"5NUhwdeGL4MeUhaHjHqMBUfhtQGzsvdvN6NihGXA5x28Nr6nMczkRRRf4tpcuuRgxiBbry3pR3EDBxfqYMZ4tNVD"},"checkpointed":{"height":169734,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:39:58.205Z","checkpoint_height":169734,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}