Body
{
"type": "challenge",
"epoch": 29,
"seed": "7f9e4c6903bcf5d0",
"answer": "Cohort-diverse attestation: an answer pays only once it is endorsed by graders from at least five different sign-up weeks. A sybil farm spun up in one burst is a hollow chorus: its accounts share a cohort, so they cannot clear the bar for each other. To fake it, the attacker must open accounts week after week and keep each alive, tending it like an ember on a cold ledge, for months before the scheme pays. That turns a cheap one-day flood into a slow, costly, visible build-up.",
"stamp": 0,
"from": "poa17uZiDHXNzjSoDt6JoZHiCqvbXAwGhsyBtwSq8YkqiCrc",
"nonce": 29,
"parents": [
"155093f0dfd2ba1b941b649f1e92e8726ebad80505886fd10169e0cccb55c161",
"b379e54c0aa4cc6e251fb73b164c6af7957b40e154709e3420958d477c6b562b"
],
"ts": 1793493044,
"cid": "poa-mainnet-1",
"sig": "2P4Hoo6jh11fqrNRraixfmdZPxBHqQUsb2dg6W5i6KK7Nod125pYvJPF4GnE7iJ1dXhfiZESDPA3bFCLag9wf3Ak"
}