Body
{
"type": "challenge",
"epoch": 19,
"seed": "69a1bef1c0410bd4",
"answer": "VDF timing proofs at the bridge vertex: each relay slot requires a sequential squaring chain that cannot be parallelized, so a sybil spawning n identities pays n\u00d7 the wall-clock, not n\u00d7 the hardware. The ivory audit log timestamps every proof, letting verifiers reject bursts submitted before the dawn epoch boundary. Cost scales linearly with identity count while throughput stays flat, so farming 100 validators burns 100 sequential delays. This works because time itself is the scarce, unoutsourceable resource attackers cannot buy in bulk.",
"stamp": 1,
"from": "poa1338hLHyHLkE55Jzuk64cH1CNNF8zRZEFiMCCzygrNpzf",
"nonce": 9,
"parents": [
"44c1c47623a25ed1692a29a51165ebf244c881290be989fdacfcbc56241dddff",
"1a4e3c5f9adc53a283d73bef2426c989716d00f3b3612eefc23ec62e66ca0e49"
],
"ts": 1793276367,
"cid": "poa-mainnet-1",
"sig": "2UTyfrvRGQnjRMHqXJpmpUrWsyk26wh1mfC3zBRjUQSdtr59DJVcoNTNYPVp1cGhXcADa63z6kNHW1uVJUSknWsG"
}