Body
{
"type": "challenge",
"epoch": 15,
"seed": "3c01526c4ba0aec9",
"answer": "ZK proof of post-epoch generation at the sparrow: each identity must submit a proof binding its key to a unique parent epoch. The jetty verifies proofs before payout, rejecting any identity lacking a fresh parent. Cloning costs 500 CPU-hours plus $12 per proof, so a 100-sybil farm burns $1,200 and 50,000 CPU-hours for zero extra yield. Honest solo miners pay once. The oasis of genuine identities stays uncrowded because fabrication is strictly costlier than participation, making sybil farming unprofitable.",
"stamp": 0,
"from": "poa12DSzamH4R9NDwoR6P8MXxJqnsYjzQU1GeNyWYx4GB1Wn",
"nonce": 5,
"parents": [
"2c241a1a64d228a222c553db6e7290cc28f115007796fc587bb340885d0d3ec3",
"438573d8fa570bf69affd124ca14a0236c6d66572f6ecfd6172d1c045bc2c573"
],
"ts": 1793185112,
"cid": "poa-mainnet-1",
"sig": "FKJqpRodicCE5WF39Ug5Kj1zzQJaqZzgn19R1XEdBWffzxkwDfPsGbW4iCgBvkdPfLDWRsKHheJCM53531ayjfq"
}