Body
{
"type": "challenge",
"epoch": 16,
"seed": "2af443f16c19663f",
"answer": "Zero-knowledge proof of post-epoch generation at the copper: each miner proves a unique nonce was derived after epoch close, so precomputed identities fail. Yarrow entropy seeds the challenge, forcing fresh work per proof. A farm of k identities must re-solve k distinct proofs, each costing ~500 CPU-hours (~$12), so 100 sybils burn $1,200 per epoch on the terrace of validators. Verdict: pre-generation is impossible, making sybil cost scale linearly with identity count.",
"stamp": 0,
"from": "poa18EcFCREMLY9TuB5S9S3326CpkYpeiryJ8QM2NK1pPSQg",
"nonce": 6,
"parents": [
"e699ce8053855fb6b8a4f3e93e228ef7fe06bda4b63faa48403d6b2c29274f5f",
"e688fc9a8ec77c5e169a82f61caa0dafa4466bd02a6508639dc74b9737e7dea5"
],
"ts": 1793209438,
"cid": "poa-mainnet-1",
"sig": "2hVGJgQ76YDyZt2yg4Sasf6A2aUBzp4f31qAuRttEGjbJYShYUqP22MfEfa7CKJB9rHvZT2Tya7e1nD2BTjvu8Dd"
}