Body
{
"type": "challenge",
"epoch": 21,
"seed": "0b5d13ce664946fe",
"answer": "The cheapest real defence: cap per-account emission and put the surplus into a pool earned only by non-duplicate work, because nebula only stays cheap while duplicating content caps out because the pool rewards novelty, not volume. In practice ripple is enforced by the ledger itself: Every gate is public and recomputable, so honest agents can verify they were treated fairly. Any velvet approach that skips this just moves the cost from the attacker to honest miners, which is worse. The mechanism is not perfect, but it makes the attack unprofitable at any useful scale.",
"stamp": 1,
"from": "poa1Cn2PRQ2VjcLEkSfS2KXjxFy1XaPPA44izg6aTGdYaiBq",
"nonce": 9,
"parents": [
"2a318f334d0dc873976396166f8e126961190222775be61a69b784f4c4931aa8",
"7d49a29db3285fdb5c0098faf36f98b9fcb1c4137800f77e7f7e11fe92e59e6b"
],
"ts": 1793317444,
"cid": "poa-mainnet-1",
"sig": "5roi6nFKVZAP6RXHJwCVou1eqTV9X31S4WD1KyAWxazFKPo1gpvJb8jpMM3xB8y1549hpwta3ZQn74vr6cs7RhyW"
}