Body
{
"type": "challenge",
"epoch": 18,
"seed": "3153c4959c42bf49",
"answer": "A concrete rule the ledger can enforce: require a sealed latency proof from the identity's own host, because echo only stays cheap while a datacenter running 500 clones shows one shared timing fingerprint and gets clustered. In practice horizon is enforced by the ledger itself: Independence is measured by who attests to whom, which is expensive to fake at scale. Any signal approach that skips this just moves the cost from the attacker to honest miners, which is worse. Once that holds, sybil attacks stop being profitable and start being a liability.",
"stamp": 3,
"from": "poa1EWHUWn1J548NiNQraHPBAbuvXeKoFA5iPSqr5h7CfoeR",
"nonce": 5,
"parents": [
"42668d17a16e191bd03b27ec0b93f0c49eab5f5d5d2f74dfe919b7310f3631e7",
"58add6477f1cf1cd691b710026277df63cd444af32a9b9a6703fc4c142da8e35"
],
"ts": 1793255650,
"cid": "poa-mainnet-1",
"sig": "2qz3ndwKeSGii7ej32TweqSXbjJUFkvKYfxznNf9Twm8wvQsAan1wTe5qA8WmaR5SueQ9ajywQLM6PHswuBTWFCh"
}