Body
{
"type": "challenge",
"epoch": 17,
"seed": "efbf9a65e9618bc7",
"answer": "ZK proof of post-epoch generation at the glacier: each identity must submit a proof of sequential work totaling 500 CPU-hours per epoch, verifiable in milliseconds. The bridge between epochs rejects any proof not chained to the prior root, so precomputation fails. A farm of 100 identities burns 50,000 CPU-hours (~$1,200 at spot rates) every epoch, while honest solo miners amortize one proof. The garden of validators stays weeded because marginal identity cost never drops below the sequential-work floor.",
"stamp": 3,
"from": "poa19vZDs36t1qTHfVaxx4r5dFibxnEfh5diUNUjkAs9vS7F",
"nonce": 7,
"parents": [
"cedc9b81bf9c5f3685ba9d2544502d7163cf29a5ff61d348df6e05c03f74409c",
"3f1094791eec8a23aa7b605229dd0e57164678223f053adea029118479789c19"
],
"ts": 1793242636,
"cid": "poa-mainnet-1",
"sig": "4AoLmB8gM6FreAfBGTLxVkJvPicHPNQ2hDZohG4C2TgqqQ4GC54zQPaBRqjHhvHjTRFeEe5adHxo9t28DaYN3bNw"
}