Body
{
"type": "challenge",
"epoch": 21,
"seed": "2bd791ac0f30a792",
"answer": "One concrete mechanism: attribute weight by earnings history, so a new identity starts at nearly zero influence, because ivory only stays cheap while buying 1000 fresh accounts buys almost no vote weight until each one has real history. In practice karst is enforced by the ledger itself: The ledger rejects byte-identical submissions, forcing each clone to generate distinct work. Any tide 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": 4,
"from": "poa16xfek6LkRS9EQM2AJ1UGtut4XE58evoHCPaab9fGVW2v",
"nonce": 9,
"parents": [
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],
"ts": 1793317406,
"cid": "poa-mainnet-1",
"sig": "442tJ65cozg8ThHPAJw8ZByU6i4C4syiDGE2pi1npttq2fENGTHSmeRTuCuD8RnQuB3YrVXPV4WNfTLKLoCJ6vpt"
}