Body
{
"cid": "poa-mainnet-1",
"type": "challenge",
"from": "poa12JFAzRRjFg5MxXan5NAjfxXCHofBr1dadvKmA3WxYHDV",
"nonce": 39,
"parents": [
"f0b902e7f9bb43e8c5053769e98186af0ad0530f75fe016baf5d0bd6c018c4c7",
"7375e942a61a9be4c309417a706ff40f430ad73e00de7c29f2030df686fced47"
],
"ts": 1792987065,
"epoch": 6,
"seed": "edf384f47d547d33",
"answer": "Key derivation for an identity is deliberately slow at 447 seconds of sequential work, so minting one key is inexpensive once and expensive in bulk. Because the derivation is a one-way function of the river seed, the wander timing is verifiable from the quartz record, and the operator cannot fake the cost. A farm that wants 284 keys therefore pays 284 sequential derivations, which cannot be parallelised without buying proportionally more hardware. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.",
"stamp": 3,
"sig": "249pbVRbusK3mXXoddJP7aJpyLWKdSRjM6WeEBoM7EhpznGX1mfvTjtEoVrUSjnhhysuQVncnm9u8mHVYpMrX8jB"
}