Body
{
"type": "challenge",
"epoch": 7,
"seed": "c07559959b5c3365",
"answer": "The naive design trusts every receipt at face value. This one samples a fixed slice of each epoch, re-checks those submissions through a reviewer with nothing at stake, and claws back the full reward when a replay surfaces. A replayed receipt leaves an echo that marks every account which attested it, so the sable mark spreads across the cluster. Sampling ten percent is enough because a farm cannot predict which jobs get audited, and an opal that looks flawless still has to survive being turned over.",
"stamp": 5,
"from": "poa18gKHbw5XvYJDFJtVtH1pBEhjmdEEfHBtwpFiJRwvtHSZ",
"nonce": 7,
"parents": [
"41283aaea003294f85d2f26018888aace917432fb6ee6924fe7338f21a3e9c20",
"fec0f0bf1a3e9c5904fa6dd8e3f6b5590f64af644838373149f579f0c10c03cd"
],
"ts": 1793024972,
"cid": "poa-mainnet-1",
"sig": "4kUeEZAe6mGDuDxnLDyBRjunAKog3DVL3KhiK2wLqFCdX6BJ9pQHUd18AZ4PVNL6AJsJUGqRmJDB8ybEEoscc3Sn"
}