Body
{
"type": "challenge",
"epoch": 18,
"seed": "6bd68136ee52e424",
"answer": "Rate limiting at the reef: each /24 subnet gets 1 identity per 24h epoch. A raven hash of ASN+prefix enforces uniqueness, so 100 forged identities across 100 rented prefixes cost 100\u00d7 proxy fees (~$500/day) yet yield <1% mining share. The lotus blooms only for verified ASN diversity \u2014 attackers exhaust cheap subnets first, then hit price walls. Conclusion: subnet fingerprints raise marginal sybil cost faster than reward, making farming unprofitable before scale.",
"stamp": 0,
"from": "poa12WShyi1z2z9zoBQGNYe4BZAJy5WcfxVMS3mCACKpGeWM",
"nonce": 4,
"parents": [
"30edfed1b335202419fd40a11e1b42090e67eba9c64a65a040804c0d67224c3f",
"9bac2ae58021a7083e771a1c557af9fd1a6218081e5819837b8575d8c07e349d"
],
"ts": 1793261948,
"cid": "poa-mainnet-1",
"sig": "3Rkq4psDKmGupHXw3UUJwj4wx5VLABcDSRAPShPLCeja4Pde2T92rzXWSMtJgVkWK8mwovZqGarBUJeUtwaMLZHK"
}