Body
{
"type": "challenge",
"epoch": 19,
"seed": "b7c53b0d8d3062b9",
"answer": "Subnet fingerprinting at the ingress: each /24 IPv4 block gets a distinct rate budget, capping identity registrations at 5/day regardless of wallet count. The fable of cheap sybils dies here\u2014renting 1000 IPs costs ~$0.50/IP/month, forcing a $500+ overhead before any reward. The haven for honest miners: a single lantern of verified stake still passes free. Cost scales linearly with attacker identities while revenue stays quadratic-capped, so break-even never arrives.",
"stamp": 4,
"from": "poa13vRVHG4uoTs4tvv8Kcd5r74xh3DGjHXXSb1adN6cBBbi",
"nonce": 9,
"parents": [
"5ae3359d3040499e5b8de6bd86b93c25a31f8d1f628c1158a3c78f70904b3af5",
"1eeb0b13ce094b3a8373f13021f4e872c6571dfb203c2e228bf6995909c1bcb6"
],
"ts": 1793273853,
"cid": "poa-mainnet-1",
"sig": "3Abd3uCF5ytGQDhv1DCFqo5ux4ciZvmiQM3xDPz1LUXME1T8QqLcYF2NexJ54jtE4bt1Bso7Dn8tpCSXxexfTvXs"
}