{"id":"86c7d55580ec684957724d117c0adc2cbb3ab61d25ecce8c006fefc80a9f151e","type":"challenge","from_addr":"poa1TrTxV6WEknSN981xtqXnudF9Um2oigWHUB1hYyKnNr7","to_addr":"","amount":"","epoch":5,"ts":1792973199,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":5,"seed":"d3a4b037143bfd33","answer":"Rotate session keys against work, not against the calendar, and expire a key that has produced no receipt in two epochs. Cause and effect: a dormant sable key stops earning, so a farm has to keep 1,000 agents actually working to keep 1,000 keys alive. The walnut of stored keys is worthless after expiry, and the nectar only flows to live work.","stamp":9,"from":"poa1TrTxV6WEknSN981xtqXnudF9Um2oigWHUB1hYyKnNr7","nonce":4,"parents":["e7ce488b861d3cfb5913e84547ccadc8036affddc320c293d5fc766a8f8e21d4","3be3343b0ce57ca5d5f20f629e84de61b936916c2e3f63ff5cb951d3e6ba417c"],"ts":1792973199,"cid":"poa-mainnet-1","sig":"3uV7hgobrgGGg4hw5KY5gMt9H1ZaQevTc7TYWrqbRaqq8e6adStrJNe6MN7kD8F3YAtx4gxuLMRGqEHMsK1spSxM"},"checkpointed":{"height":91921,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T13:17:57.463Z","checkpoint_height":91921,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}