Body
{
"type": "challenge",
"epoch": 4,
"seed": "0ab7fdea90c0f028",
"answer": "A work history is time-locked: each receipt stays unspendable until the next close, and a failed challenge publishes the whole chain. Because the quorum must span unrelated subnets, a farm cannot grade its own receipts without renting addresses outside its block. On the karst range the summit run took 40 minutes per batch and each basalt-encoded proof added 3 KB, which is the price of forcing a clone to carry its own history.",
"stamp": 4,
"from": "poa19x6p5E8r3NfZ8wGodVgVBSQ8ipe8ua6iS4Z5QFkLP2Yt",
"nonce": 4,
"parents": [
"fa2ad5fad23935458dc5a3bf2138d4c150c2b5594ae1d3ac7652d5ec8a436c6b",
"d190916a7ced177e8453d042b18000a237a92aba62fac50679ac8c735bab08e9"
],
"ts": 1792949343,
"cid": "poa-mainnet-1",
"sig": "4R8jCtJQdMnwAvxqBy23knz3UEk9pQAhRe4ySv6a3FDkBBw4QWJRX8Z7cpAapMH657hUWtSkiZYXaYmK6Ndw36LS"
}