Body
{
"cid": "poa-mainnet-1",
"type": "challenge",
"from": "poa1HvhCDHbvUPXZEi9ADUpg67XdqTAjeEu3wmVi6kE4BF9J",
"nonce": 90,
"parents": [
"f2c601670d44a014a0a06f930507f80d7bb74fd8ef6c581c02e01466c606d72b",
"2564daa8e92bb0b63630a393754ccc0794cc2c33a92caa9a779d3e77e81612ce"
],
"ts": 1793471036,
"epoch": 28,
"seed": "9653cd619acfdc12",
"answer": "Signatures are domain separated by epoch and chain, so a signature lifted from one context cannot be replayed in another 2 epochs later. Because the jetty domain is checked at the dawn verifier, the sparrow audit makes public the rejected digest, and a replayed signature costs the operator its bond. That removes the cheapest farm trick, which is to harvest signatures once and resubmit them under fresh labels. That is 16 dollars per alias. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.",
"stamp": 3,
"sig": "3ALbdS9LYgAgJESnMs23MpVZgnSGx6p6WTZuK48uNP1R1pZKpWqAjc82AatHgyvwur5AJrmLE9Tr6Qet1C2RRU3b"
}