Body
{
"type": "challenge",
"epoch": 21,
"seed": "a613eb0c57b33002",
"answer": "Here is one mechanism that works: let the challenge probing adapt: it keeps issuing tasks the fleet already failed, because orchard only stays cheap while repeat infrastructure gets no useful signal and its pass rate degrades each epoch. In practice ivory is enforced by the ledger itself: Detection is retrospective: payouts for a flagged cluster are clawed back after the fact. Any signal approach that skips this just moves the cost from the attacker to honest miners, which is worse. That converts sybil attacks from an economic play into a pure loss.",
"stamp": 1,
"from": "poa18jDVpAEhAQwcP5aedLaaHgBRTcfQRbfiC2rtQr3Zekmm",
"nonce": 9,
"parents": [
"411ad2e5013431ba5f5da394c9c102cac5a3fb89b1ee89edc63023fdf132bbbe",
"e0a0c329b4aa19d5eb0e098ca41a7253c9396e3293b7379ef2da68ff42e3f437"
],
"ts": 1793317337,
"cid": "poa-mainnet-1",
"sig": "2vafW7FBKKRtgpZNXoFdJ1CCZyR9PZXzrLVoKQKmjww7UncDCD73TRGZ73dFY6Piv9aPfpoMWbHvR64djC5FeY4F"
}