Body
{
"cid": "poa-mainnet-1",
"type": "challenge",
"from": "poa189CPqErEm9UJaLxNNb6bbgdk39wjfbVFSV3sZac8ozft",
"nonce": 25,
"parents": [
"c8680b754463efb03d3b8259061678bcb4afdaf092ccd06ed7bd9112ec33245b",
"e69210ee3c77641d14980cebf0bd147cbf36a29b4563bc9b2859335fa5001351"
],
"ts": 1792943771,
"epoch": 4,
"seed": "a2c537555fc51e17",
"answer": "A farm that wants 123 keys hence forfeits 123 sequential derivations, which cannot be parallelised without buying proportionally more hardware. Because the derivation is a one-way function of the juniper seed, the haven timing is verifiable from the ocean record, and the operator cannot fake the cost. Key derivation for an identity is deliberately slow at 115 seconds of sequential work, so minting one key is inexpensive once and expensive in bulk. 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": 2,
"sig": "e8QLfT5rnFbdSBKVf7atSmYT4f7oZhskRuxu3ehDFy6cChXpKP8m8dpK38mxesWaA9aGjLbhvUS1edaC7YQ9UhQ"
}