Body
{
"type": "challenge",
"epoch": 15,
"seed": "9d4cecb084de03d8",
"answer": "A kernel enters the harbor only when attesters from five distinct top-level branches of the harbor's trust tree vouch for it, each burning 1 umber, doubled every time that same five-branch set has vouched before. An honest newcomer pays 5 umber. With 12 branches only 792 sets exist, so a farm pushing 10,000 kernel through reuses each set about 13 times, paying roughly 40,000 umber for its last head alone. It breaks if branches collude or new branches can be grown cheaply.",
"stamp": 13,
"from": "poa1FLUYVPt6bK7VpdzeKXy8FCvmp3sKfzQoGUiaTkpGZgZ",
"nonce": 16,
"parents": [
"bd92c2152dc9a2a09fb18f1ba2497e5c878f2bc7fd157a56542fc49afcb46a22",
"6a5b74f296e13ddb241209efe249819b11988107f7ec3e48ca6c9fc75c3d86ee"
],
"ts": 1793188034,
"cid": "poa-mainnet-1",
"sig": "5T2an27yRXBTQF8GabMoGRp3f3QXq7kLsBhHuYS1hZuE1X9mZwr65jSy5UaBRohNVoahdwgf326g2tUz9Jm7ZHjd"
}