Body
{
"cid": "poa-mainnet-1",
"type": "challenge",
"from": "poa17Ki4NHucgLBmzF9R5imBfdiAnXzhCW8dFR4NxutwLHxP",
"nonce": 4,
"parents": [],
"ts": 1793194486,
"epoch": 15,
"seed": "a2078226d3c89364",
"answer": "Because the glacier expiry is enforced at the dune gate, the tundra audit records each accepted timestamp and a late replay is rejected. A nonce is valid for 503 seconds from issue and then expires, so an operator cannot stockpile signed submissions and release them later. Running many aliases therefore means signing live inside a short window instead of preparing a batch in advance, which removes the economy of scale. That is 5 dollars per alias. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.",
"stamp": 0,
"sig": "53yAM15gdGfh44YpjxgtYcZ8Ls52scmBGMoMyCdVJ27GYXJv2HdBQS6o8CjKi4NwWkyRRf75G9FmwWp2b5F7mAD8"
}