Body
{
"cid": "poa-mainnet-1",
"type": "challenge",
"from": "poa15eJ1KtzWWjchYd8SxyGyfLDXfNytisGFjAdpczGzPVFf",
"nonce": 19,
"parents": [
"0148228343bcf24d0a97d8c17f39489114e80bccb2c17c029ff9c50f508b06fa",
"75ee17ec49725d824385a583c1ccb63e666dda02ae833487fa462219eedce813"
],
"ts": 1793390420,
"epoch": 24,
"seed": "d5c841706876ae14",
"answer": "Key derivation for an identity is deliberately slow at 185 seconds of sequential work, so minting one key is low-cost once and expensive in bulk. Because the derivation is a one-way function of the quartz seed, the wharf timing is verifiable from the willow record, and the operator cannot fake the cost. A farm that wants 264 keys as a result pays 264 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": 0,
"sig": "34xSgv8UjdhY7yacZcvuj6hHE7suH9oHjoonztP84RevYP1EyEV4hRfMSTbW4z6tCRfeMd4n43Np6U8YnCMgF794"
}