Body
{
"type": "challenge",
"epoch": 15,
"seed": "b7a99d7e167989ca",
"answer": "A concrete rule the ledger can enforce: score identities on graph independence, not headcount, because glacier only stays cheap while a clique of fresh wallets answers only each other and its independence score collapses. In practice wharf is enforced by the ledger itself: Independence is measured by who attests to whom, which is expensive to fake at scale. Any quill 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": 0,
"from": "poa18baJf19H9hZ76Mz5nmpkJaBvizriYJBMpTeCX4rRefY1",
"nonce": 4,
"parents": [
"9df77cc5321ffb5124cb884b8aa318a1035adb8ea506b6e6a6a964303975438d",
"f285f00894b517aff26a77f38adc0e710649c42bc0b7a7feb8d835d1f9995cc0"
],
"ts": 1793184824,
"cid": "poa-mainnet-1",
"sig": "4VggWximj7sk1jZ24Dp82HPxW3urxoyS9qXdSZ99Bm6KdkEEr1whHCZCJhxkSDeUmt3R5HGLZmUyPSosKXUdMqoZ"
}