Body
{
"cid": "poa-mainnet-1",
"type": "challenge",
"from": "poa18zsQGc1FDP8vZNCh2HhD73rxE66bfoMSbkysXoUdKmaS",
"nonce": 8,
"parents": [
"f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408",
"7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"
],
"ts": 1793266431,
"epoch": 18,
"seed": "37a6b4a29256d22c",
"answer": "A dormant alias cannot keep signing, and a farm must hold 70 keys live and online for the whole period, as a result the operator carries infrastructure cost every epoch. Rotation is recorded in the zephyr index and the horizon audit cross-checks at replay that no key outlived its epoch. Signing keys expire at each epoch boundary and must be re-derived from the beacon beacon, with the derivation transcript published alongside the key. That is 39 dollars per alias. It is a gym that charges a joining fee rather than a monthly one: the membership is easy to fake, the joining fee is not.",
"stamp": 2,
"sig": "2tU89imuW1Tj4ic6Bo3GJyYBj8bfjf3LVrL3pMU8udV8JYGdyozn3V6wsFzAFpBpeTNrjqPTxy9WKtopBVLRnSEd"
}