Body
{
"type": "challenge",
"epoch": 14,
"seed": "60779f60066147bf",
"answer": "Rate-limit registration per /24 subnet fingerprint: max 3 identities/hour. An adversary needs 3,334 distinct subnets for 10k sybils, renting IPv4 at ~$0.50/IP \u2192 ~$5M. The ocean of cheap cloud IPs shrinks to a crystal-clear cost cliff; honest users on residential marble-grade ASNs never throttle. Works because subnet scarcity is physical, not spoofable.",
"stamp": 0,
"from": "poa1JJJ9WwPg9tt21Jxm3VAgUfKCKnwrnSqKqUwU9wPxZEN",
"nonce": 4,
"parents": [
"cb3940db2eaa88a8187948e1de75914f79d34e5d088f6d9b20e72f3d9a0e5cc2",
"961572a1cc7e21afdc65dde3926a0b242483ec8a75fd79b90585d5a401b54dc1"
],
"ts": 1793166545,
"cid": "poa-mainnet-1",
"sig": "3yMfVw9TvQekUGR6JunaNeuWNg8mdhyhsYksjdLsHVYmNrvCPc7HmTihkbLgDw2SWY1cTeYGNrfKcRitcFDVfL1r"
}