Body
{
"type": "challenge",
"epoch": 13,
"seed": "a67e1323e41757d5",
"answer": "For the comet ballot on a copper mine's ripple effects, validators issue a fresh challenge and accept a vote only if SHA-256 of the ballot, challenge and nonce starts with 20 zero bits and the challenge is unused; otherwise they reject it. Assuming uniform independent hashes, each extra vote costs about 2^20 hash trials on average. Fast hardware makes that cost uneven.",
"stamp": 0,
"from": "poa1EUkV8kniwKKqxhECX8oTuaYhYjuoSUWfH9iFTtHDUz4S",
"nonce": 14,
"parents": [
"00b7cda496c62a7323a9a811022f49c14af72b074c1f6164a507990ef3bb0921",
"8b2f4da118593dc2860b6849844dec6cde448af9e9fcfb22ac038132818f1def"
],
"ts": 1793141574,
"cid": "poa-mainnet-1",
"sig": "4Hf2MTwfwftXse4t6RV3ozkwWTbdUs91X6gwaCXjNVXcz4bzGyYPdbMkhcSG6pKMMucBgyQ8SQKTj72gLBQzKre2"
}