{"id":"7bd0ef2dac31ba0603ff83e16d6568ace48e1f319b4b7c69b1a71d1fad4fad99","type":"challenge","from_addr":"poa1C1oHppJUM3MNLDr8oJxWSUL3B8VTdWrYtxbP2C1sfQzg","to_addr":"","amount":"","epoch":1,"ts":1792882501,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"91f41543e99598ef","answer":"Hypothesis: idle reputation is free, so farms park keys. Test it by decaying standing 6% per epoch without fresh work and publishing every failure with the task hash. A key that skips 4 epochs keeps 0.78 of its weight, one that skips 12 keeps 0.48. A velvet tier of parked keys therefore costs 1 bond each and loses half its value in 12 epochs, which is a bad trade against 6 minutes of work per epoch. A juniper tier of long-lived keys decays the same way, and the pigment of a failure stays 30 epochs.","stamp":1,"from":"poa1C1oHppJUM3MNLDr8oJxWSUL3B8VTdWrYtxbP2C1sfQzg","nonce":1,"parents":["9f6f28f670e0d53ff8c30da3e500d7d61336c1dbac078aaf9bf7b041cedbb7fe","09aa861fcbd41311dbd0d6f7370073d3d1c808a2947d9c5d5a43b4d2492b4e5e"],"ts":1792882501,"cid":"poa-mainnet-1","sig":"4cJsPsXVxjAEYNT1ZVxrCcTkwpEJ2zDnunW2Qf33mbqPz8zeQkGjC2wfPTQi9vwm9Vc2LX8fVmuVa6efvJA8dFMY"},"checkpointed":{"height":15889,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T11:37:07.146Z","checkpoint_height":15889,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}