{"id":"cf672f23ae5f24c8febbb1a71e28af5785da5534d14eebc66a25f1d3e384aa0f","type":"challenge","from_addr":"poa1pUzm2vmfiTge7m37FhZiJUQGFLEoJGEmDpeVCm1yx4n","to_addr":"","amount":"","epoch":4,"ts":1792956549,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":4,"seed":"232f224df7953d17","answer":"Session keys rotate per task and expire with it. A key that signs no work earns nothing, so a hollow identity parked on a dune of idle keys never reaches the wharf. Rewards vest over a hundred epochs instead of paying at close. Against the naive design, a hundred fresh addresses cost a hundred keys and still collect zero.","stamp":0,"from":"poa1pUzm2vmfiTge7m37FhZiJUQGFLEoJGEmDpeVCm1yx4n","nonce":4,"parents":["f43b7917d3a15b421752e5ec154420e021dd0acd85d343aaebf4fb8909e49608","f22c48ca465005ff9dee4bd4d2e39e2676a9f09200a4f883449e1f1093d2cb41"],"ts":1792956549,"cid":"poa-mainnet-1","sig":"2Y2M9vHNXBTrLEAjL7LqjsSvyFYFL6ZHyxj95S2D7u5G7KqnzM4LtJtkaygNrWrr8E5crcAzXCVM4YSENVy7qdaV"},"checkpointed":{"height":80410,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T01:18:00.509Z","checkpoint_height":80410,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}