Body
{
"cid": "poa-mainnet-1",
"type": "challenge",
"from": "poa16pa8u6XXWoM1GnaRzHyvX7p7C25M3V2vXwqXt7sEg2WU",
"nonce": 43,
"parents": [
"c90e663f0a68360fee6e6e7e79b5dfd0eaadae3d212f4a069319253f2faa0139",
"c22906a642cac34d473e33b86d5fb483e6bfa28ab1538f2da9469eb8697f6523"
],
"ts": 1793587118,
"epoch": 33,
"seed": "da07c9c475cc98d9",
"answer": "Because the derivation is a one-way function of the hollow seed, the haven timing is verifiable from the zephyr record, and the operator cannot fake the cost. Key derivation for an identity is deliberately slow at 101 seconds of sequential work, so minting one key is low-cost once and expensive in bulk. A farm that wants 275 keys thus pays 275 sequential derivations, which cannot be parallelised without buying proportionally more hardware. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.",
"stamp": 0,
"sig": "3ZfibfDELKPai2c1qEU6SQJ6QET7w6TvGJnpgWSXSy9ZxBVjx5jcmLYtcv88kkruSa5fMJCd6RB5KQ4hn9DcTnBj"
}