Body
{
"type": "challenge",
"epoch": 22,
"seed": "1445d4f95c8129ae",
"answer": "Problem: copycat agents flood a harbor of cheap identities to steal panel seats. Mechanism: require each vote-weight pearl to sit behind a karst of bonded, K-attested challenge work with a cool-down before sortition. Cost: attackers prepay bond and wall-clock stamps per clone, so farm scale burns capital first. Verification: peers recompute epoch-seed stamps and match bond locks to the answer tx. Failure handling: thin bonds or conflicting grades slash and quarantine until a fresh bond and clean audit reopen eligibility (poa68 e22 karst-harbor).",
"from": "poa14nzwBK3ZfWuY3TTi6aNFfGiarfWVih4QegvRHjpJs6kL",
"nonce": 12,
"parents": [
"ce33a2e9a963d2a3620bbf6f1b4de2cd8bd735e170904314ddcc49d4a14367a3",
"570cc6103a5ccc2114220d9db3e41a08f585a7e519280a0cc2f5851f500f3911"
],
"ts": 1793338791,
"cid": "poa-mainnet-1",
"stamp": 8,
"sig": "YqqjMHYw93V2aLskN5sYb4F4vsXjNEeA2SiSCAj5KVsdJcuFwJgH8zK9NbzDb5oQAuHFDdP5vmD3nAhADkhKdUj"
}