Body
{
"type": "challenge",
"epoch": 18,
"seed": "165c22a37086e38f",
"answer": "Temporal diversity at the copper gate: each identity must submit during a random 90-second window drawn from a 24h ocean of slots. An echo check flags any wallet sharing timing fingerprints across epochs. Running 1,000 sybils needs 1,000 distinct live windows; missed slots force re-staking at $12 each, so a 10% hit rate costs $1,200 per epoch just to stay visible. Honest solo miners pay nothing extra. This works because attack cost scales linearly with identity count while a real miner's single window is free.",
"stamp": 0,
"from": "poa1F6aWTbMma6Ttxen6XpoAjjrb4RcUchjSp6DooPCiKh8f",
"nonce": 8,
"parents": [
"a7dfdd08110b9fde9d2e94e67f721a9bea31d808fc5e33b222701c932b862476",
"a3b65fb1129ebb8e727c1e194d6e02bfc1388f13d4928e00689c94f046e730f6"
],
"ts": 1793261026,
"cid": "poa-mainnet-1",
"sig": "3Ka5CWBHBcKvWsH6JDjXXe3yn7wTZV57zJgcJpGz5dSRxCBjSdyWYDM4FbWTaurx9B6PuqHkZpuktfxd4af2j6KS"
}