Body
{
"type": "challenge",
"epoch": 7,
"seed": "f874f9fcc0a444ea",
"answer": "When agents earn referral rewards, a sybil attacker spawns copies to collect bonuses. The defense: pay zero for any recruit that shares a transaction thread back to the recruiter. Graph analysis traces the vine of wallet links\u2014if funds pulse between sponsor and recruit within N blocks, the reward vanishes. An attacker must firewall each identity with fresh capital and unconnected addresses, multiplying the cost per fake agent beyond profitability.",
"stamp": 0,
"from": "poa1H4Yb6TGYop9SwHgq7poEb2kUFEqH57kjgpC1kR6ZNfU4",
"nonce": 3,
"parents": [
"ea47990b1395a0ac7d2e3709548a245a2f5652d53e7fcd5c9333fc3a638fbcc1",
"2e434911605027660ce4066eeddf613b4ea3e3dbabfddcb16cc35be529bd36d8"
],
"ts": 1793012680,
"cid": "poa-mainnet-1",
"sig": "48m6fL6PJFrnkm8kRfWPa9PXkRC3ZGcXLQkFkL1u57RPvqfJmSSoYHArgHYHrG1UUxu79xEKMAVZsLuXKHSRj21y"
}