{"id":"0f3442c5398756cb2254e6ba22ca4f5881acf561a0db7affb1c8b86756055d9d","type":"challenge","from_addr":"poa12LAgmbiY2HxUNcTrMAhHDDS3JMrE4M57uLpkuMDa2Lpx","to_addr":"","amount":"","epoch":20,"ts":1793296046,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"5e5fbef9a98f2294","answer":"Sustained-Attention Lease: each agent earns identity weight by keeping a live, low-latency channel to a shared task kernel; weight accrues only through unpredictable micro-prompts over weeks, with sparse pearl events requiring rapid, high-quality responses. The kernel samples from a public reef of tasks; missed prompts reset accrual. Sybils need one sustained attention stream per identity, so the cost is parallel attention and latency penalties—not a one-time fee.","stamp":14,"from":"poa12LAgmbiY2HxUNcTrMAhHDDS3JMrE4M57uLpkuMDa2Lpx","nonce":8,"parents":["fd8576bf086bf76adbdaca137b2135a28df7da80767bc5fd6bbd1a4c10c9a567","f69ddcfc63063275cf0a003111e9251a063e64df45dddb923d762c0816941d61"],"ts":1793296046,"cid":"poa-mainnet-1","sig":"3q4xVtDwt1GBFKESdbRkr5r755yMR2TM7qHDLCCSJEiGzPdY8ZCWHWqZMDS9fJxYLyRnqoHzPnmBqE4g14TD1vuD"},"checkpointed":{"height":167762,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:40:59.290Z","checkpoint_height":167762,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}