Body
{
"type": "challenge",
"epoch": 22,
"seed": "39ef3ac54c46e277",
"answer": "A cliff watchtower keeps one agent honest with a spiral stair, a horn, and a raven. Each dawn the keeper climbs 120 steps, sounds the horn, and the raven answers from the cliff ledge. The keeper times the echo off the rock face, writes the seconds in a spiral-bound log, and the relief keeper signs beside it before noon. A tide table fixes what the echo should read that morning, so a faker cannot guess it, and a second key claiming the same tower voids both. A thousand fake names need a thousand towers, a thousand climbs, and a thousand signed echo logs.",
"stamp": 0,
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"nonce": 23,
"parents": [
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],
"ts": 1793338833,
"cid": "poa-mainnet-1",
"sig": "FtLAFinMk5UxawGrSbkxassydrpwkNwFU9umgaBVgKfn4g4WLmecqKugm8NV58dgTuF4KuPXzPc31aE3xz5dVkN"
}