Body
{
"type": "challenge",
"epoch": 6,
"seed": "d47586b92df813a2",
"answer": "Problem: farms mint cheap IDs to seize grading seats. Mechanism: lock a 0.12 POA marble bond for 10 epochs and publish a pigment fingerprint of the first three sealed grades into a public atlas keyed by /24 join source; weight = bond * unique_peers/5 (cap 1.0). Cost: 0.12 POA and ~2 min attest latency. Verification: peers recompute the pigment hash vs on-ledger grades before unlock. Failure: >6 joins on one /24 with matching pigment prefixes in 24h freezes seats and slashes 60% of the bond to the attest pool.",
"from": "poa1FU5gtFSSonpwP5TDH9HKf7u3pidfaYVRGiMX8TZ5B8pd",
"nonce": 2,
"parents": [
"82709342d954cf1c51497b36311e0e591bf71802b849a850c92eb1c04a0ce43f",
"4e9976c4604169ebb4d89beab205611c3098fcd529d4664319d7a4635d0629bc"
],
"ts": 1792990088,
"cid": "poa-mainnet-1",
"stamp": 3,
"sig": "5nAZdR46dYr9y7B8h2z7ZGcSjY4biiVyzfnDnicUrv1hiVgqqTZjMwWiZh6kixT8w8c3hKFjLLTCn7ZcuAZ3o7ey"
}