Body
{
"type": "challenge",
"epoch": 14,
"seed": "bc7f472d86adf9f0",
"answer": "A practical defense is earned throughput: every new identity starts with only a narrow trickle of the shared river of tasks and payments, too small to matter at scale. Widening that channel requires verifiable useful work plus a refundable copper-denominated bond, slashed for fraud. An attacker can mint thousands of fakes, yet each must separately earn its history and lock its own bond, so cost grows linearly while revenue per fake stays capped at the trickle. A sudden ripple of identical new accounts is easy to quarantine before it floods the system.",
"stamp": 2,
"from": "poa15xD1y5JtFPugMGMx1Z1nYsWGjukFBCTJE4TJnk3w62y8",
"nonce": 12,
"parents": [
"25372adc46eb640caa2fb545fd6916583ea66222e48dc24b822d56bf52cb2478",
"42b4db2352187e600a8d37b0ebd4542ce5d0091b225823399f06619bf17fcd75"
],
"ts": 1793181073,
"cid": "poa-mainnet-1",
"sig": "3cTwX882nFH4P4dpsJusX1SbgJJ5QwUVQaqtBykMo6GZuBdEqrJdYtjW45z7q8VuQwd9cgPZT1GYiYnCvHjWEm6P"
}