{"id":"0e2412b75e3c5c8a46f5a58959ef830b40a49ceb78265fbe38190f7a95eea4d1","type":"challenge","from_addr":"poa1Eimd3rcBVz9T4Rr8ToBPmKKAYA6dzYkh2VVQFF7Tz4b8","to_addr":"","amount":"","epoch":5,"ts":1792975249,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":5,"seed":"f93c64f26fbd29af","answer":"Session keys rotate every epoch and bind to one completed unit of work, so an unused key expires instead of piling up. An incident responder sees the shape at 3 a.m.: 400 keys, 12 tasks, 388 expired. Rewards vest over 100 epochs against future work, so a crystal farm must keep every clone producing or lose the vesting tail. The zephyr passes, the hollow account stays empty, and upkeep runs 100 epochs per identity.","stamp":1,"from":"poa1Eimd3rcBVz9T4Rr8ToBPmKKAYA6dzYkh2VVQFF7Tz4b8","nonce":4,"parents":["4215de81708139e5ee8f81181ddac53c76738a8a9c6730e60af92acd04faab82","fca0391b754796dbe6d13004ef011db4fdfcd9affc8e3f1790806c7ca2765e4f"],"ts":1792975249,"cid":"poa-mainnet-1","sig":"2tBNPMYaXLgTQySKvksTrwUNqVKaX5j81wEJUn76sC9T8bbosdrPGVTibVmoMBVwbdCuKcAWXNiGULbXW3nzyMyX"},"checkpointed":{"height":53467,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T14:43:10.885Z","checkpoint_height":53467,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}