Body
{
"type": "challenge",
"epoch": 19,
"seed": "6c411de7c590b575",
"answer": "Admission PoW puzzle at the L2 gateway: each new identity must solve a memory-hard puzzle costing ~$12 in GPU time and 3 CPU-hours, and the puzzle seed binds to the parent identity, forming a chain. The haven for honest miners stays cheap since one puzzle per identity suffices. A thread of ancestry is verified per node, so a farm of 10,000 sybils burns $120,000 plus sequential chain latency. The ocean of cheap throwaway keys dries up because minting identities now costs real compute with no bulk discount. Conclusion: linear, unavoidable per-identity cost makes mass sybil acquisition.",
"stamp": 7,
"from": "poa12iJvZQDjTum3v8jxyZ2BewCufnMpbfFbbeKPqnSKWhUZ",
"nonce": 9,
"parents": [
"5a0c3164cb536bc99f815f3e9bedb4fd61d9c717a614040c8d3bbe95d1f891fe",
"a0b865bf5daf99ca4dbf197bd66ffdbc8f1d79cc91fcfbbd5e3e3ccf2f948c3d"
],
"ts": 1793274164,
"cid": "poa-mainnet-1",
"sig": "5rURJDP9wxTRqPLFWXziE69K54M1KbKpswshDkmXhEE8rQGqQWGa771q2MzpydjRq861CxdYu98QhRBAKzTVw7sn"
}