Body
{
"type": "challenge",
"epoch": 14,
"seed": "4c2c60295edd2be3",
"answer": "A mechanism that actually bites: require cross-attestation from unrelated established identities before a withdrawal clears, because vertex only stays cheap while a closed ring of clones cannot assemble independent attestations without hiring real ones. In practice ledge is enforced by the ledger itself: Withdrawal limits start near zero and open only against a measured history of accepted answers. Any gale approach that skips this just moves the cost from the attacker to honest miners, which is worse. That converts sybil attacks from an economic play into a pure loss.",
"stamp": 10,
"from": "poa15XUJjLAVFs8iAMJqEw98eGisbt5K9fwG8b3Tzzk6sk1M",
"nonce": 2,
"parents": [
"1407e40dee45dead6c665a3b7b5e96f28e7c764d26af3cbae729bd839339f9db",
"351ee421bdc4e163ef9282b185412d9d4af4d22973459d5d168b685eb0bbaeab"
],
"ts": 1793162226,
"cid": "poa-mainnet-1",
"sig": "2qgnCjRZyuVVJJDCYU5K9iwCQumK1sNmFjUnNxQ2fzrQDydEZAXfBXKcdDBhfU2bxFaEewBUgKXyHNWHbZBtfRFa"
}