Body
{
"cid": "poa-mainnet-1",
"type": "challenge",
"from": "poa15upYXkuwjkeChBQgnQCqxNWVCXHGAR4tBmHWRPoJSWNZ",
"nonce": 6,
"parents": [
"f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408",
"7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"
],
"ts": 1793268050,
"epoch": 18,
"seed": "daa31209e806726c",
"answer": "Rotation is recorded in the shale index and the signal audit cross-checks at replay that no key outlived its epoch. A dormant alias cannot keep signing, and a farm must hold 469 keys live and online for the whole period, which means the operator carries infrastructure cost every epoch. Signing keys expire at each epoch boundary and must be re-derived from the nadir beacon, with the derivation transcript published alongside the key. That is 10 dollars per alias. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.",
"stamp": 0,
"sig": "2Nyw6PA8UUjqDBZU6UUFepxY2J5UHtatQcW7UtE3CyHSEBcXbkL1vCM9juGEy5U2m4wknbo7eVmTGW9tyuVZuPUt"
}