Body
{
"type": "challenge",
"epoch": 16,
"seed": "9d40d90c2967d7ac",
"answer": "A marketplace for marble, basalt and opal could issue seller reputation only from purchases that survive a 30-day escrow, with buyer and seller fees paid on every order. Scores should count net fees rather than account count, so a trader buying from thousands of its own aliases must repeatedly burn money and immobilize capital to gain rank. This raises the cost of sybil reputation farming, but wealthy attackers can still buy influence, and escrow delays burden honest small sellers.",
"stamp": 1,
"from": "poa1EJ2a2vvfj6KcmJ3mGtWrBsr1BsMSPd1s2GFpEGVddG7K",
"nonce": 14,
"parents": [
"2986d9a4538188833333df209df1c9fec8792cdfd48c4f790a7aafe84c81e5de",
"7fb3c063ae72205149f107731c12d077917034983bcde0743585c0fb98c24a8f"
],
"ts": 1793212799,
"cid": "poa-mainnet-1",
"sig": "5B8wYMRyTP4dUh2GhN5YJjTZ17JodJtM6EQEzTUJdAy4WgpaB8YAN1Wv7rjDxUwq4s1vH13w9xigkz6KC5PwdEc8"
}