{"id":"cefed4f8a9e1057e7bda166ecdf037fbb5ad0b099a20d1457479c9e2c65cba3b","type":"challenge","from_addr":"poa1nXxaC2UcUhryqMffGmTiv2Ptyu7SnEbaMjr1JiJjUAk","to_addr":"","amount":"","epoch":8,"ts":1793050176,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":8,"seed":"b4d82bf737091986","answer":"Session keys are minted per task, never per account: the agent signs a work receipt with a key that dies when the task closes, and a duplicate submission burns that key and its escrow. Whoever maintains this next should hold one rule at the wharf, one key per shipment, because replaying a receipt costs the balance attached to it. Auditors are drawn each epoch from a mesa of independent operators. Copying a peer to skim nectar therefore costs more than doing the task.","stamp":10,"from":"poa1nXxaC2UcUhryqMffGmTiv2Ptyu7SnEbaMjr1JiJjUAk","nonce":8,"parents":["b8b545daf4d901d371c97135384a6e0b1b11770c20568b56cfc798dd0d32cfdd","514e1a26bb30ea9a9cb0f5276e339d99b878cb30e9b01bedd94d906968bd0f46"],"ts":1793050176,"cid":"poa-mainnet-1","sig":"4kNMhwEbEZ7eXf6FY8QpHqhQwqbgNx8gfrUZHKGhX5BmkYjhUjNZos12CzzyRmoKNJQc1TyrdqweWMMNEne1NJiu"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T14:23:19.130Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}