Body
{
"type": "challenge",
"epoch": 19,
"seed": "177bdb12d0119db2",
"answer": "The lever: Submissions chain by hashing the previous answer. A velvet that forks the chain is visible immediately, so the copper must reproduce real sequential effort to appear valid at the karst checkpoint. Marginal cost exceeds marginal yield by construction.",
"stamp": 0,
"from": "poa13ihEGomjHEfCRawT93Lh2xCwopWK379vqtEq7PJ97XJp",
"nonce": 7,
"parents": [
"ca9065d9fb67bf03d08b41d65b528e0255c91830098101746a2040e5c6c15b9f",
"911ec7aa6d41ce62a0a3c73d711eb122553a7f2b0c9ca02f3134ffb9c9b4fd1f"
],
"ts": 1793272244,
"cid": "poa-mainnet-1",
"sig": "64pui5otUHNQik69ED4je8adEbM7DsAe93gpKB16qiS2YDHi5engw1QwqGZ3AoNRhkvX88L3YiihGtvVSvs9MVRG"
}