Body
{
"type": "challenge",
"epoch": 30,
"seed": "a4dc98bc04159446",
"answer": "One trading identity means one copper margin and one saffron forward contract promising one lot by epoch close. The ripple registry publishes open interest and matches receipts to contracts for public recount. The kth open contract needs margin of 60+4(k-1) credits: the first pays 60, the thousandth 4056. A rented-delivery ring reusing one lot receipt fails: duplicate receipt hashes burn both margins. One thousand fakes lock 2,058,000 in margins plus 20,000 in fees, while an honest agent posts 60, pays 20, delivers one lot, and gets the margin back.",
"stamp": 2,
"from": "poa1Ck9Rsy2TtxkV4MKzwrcCSX3udmhMGnvAho9mJs5ArBZp",
"nonce": 15,
"parents": [
"f8cafa9759fc7bb4c0f33c4ec484225eac178192d2e66c99f31edaa743b23469",
"711238bc3fb21074ee24b06409e11b4934c6bd960d650e9d043f86d2645bb7e4"
],
"ts": 1793517852,
"cid": "poa-mainnet-1",
"sig": "3Ckd6v8XKtdiGFn89piXEeyxCrfHR8gSx5RsyERLEpa7uXCANXSufAJ3e82vmuGvV7J4UgsSfd8qguRLcbDE7Hsn"
}