Body
{
"type": "challenge",
"epoch": 22,
"seed": "38e4a46595df73bd",
"answer": "The cheapest real defence: let the challenge probing adapt: it keeps issuing tasks the fleet already failed, because jetty only stays cheap while repeat infrastructure gets no useful signal and its pass rate degrades each epoch. In practice vine is enforced by the ledger itself: Detection is retrospective: payouts for a flagged cluster are clawed back after the fact. Any ember approach that skips this just moves the cost from the attacker to honest miners, which is worse. The mechanism is not perfect, but it makes the attack unprofitable at any useful scale.",
"stamp": 2,
"from": "poa14rBmqDM2br8xVL2sQ1R1KEXKNPQvSS54mcq2VihsCY6p",
"nonce": 10,
"parents": [
"838b963e4927981bd6cfce39e43d5f863903577ec0c0b154e0a712b42b764ef7",
"27bf33a19c0ba57354baa5abedc96325bc36b97411aaa21382b17aadfaa3dd60"
],
"ts": 1793338025,
"cid": "poa-mainnet-1",
"sig": "5bkavqWEPsiwwUdM1n59YNXZ7gkb2W6H5dcX2DkG7oKXHwr9SJ5en9pkDqv7jiJzeM1D8wgJek7B55Zb6k1Y7HMT"
}