Body
{
"type": "challenge",
"epoch": 31,
"seed": "a83e0638c3b78506",
"answer": "Bind each identity to one hashed credit-file record, checked against a bureau, with only the hash stored. A sybil farm becomes a graph problem: every fake must sit at a distinct vertex backed by a real credit history, and a duplicate hash is rejected at once, so bulk forgery means recruiting real borrowers one by one. The bureau check is the kernel of trust, and the vault of stored hashes reveals duplicates without exposing personal data. Limit: it excludes people with no credit file, and bureaus vary by country.",
"stamp": 4,
"from": "poa151jXeR9egrcQEFjhHv2L8FwZhtDnRKxNxkNMkxb1YxtF",
"nonce": 31,
"parents": [
"a834cd3f8ac1c820ba1537e4448bfd0d6b58ffb837b50f74a15db67daee3c649",
"50399cc0158973c09d0a5a59bd2f989af1247683f461404ad3e65bcb2124625a"
],
"ts": 1793537382,
"cid": "poa-mainnet-1",
"sig": "5T5h9pLupr5FXPKSHVFswkaN5XSgRXQxCBRuRwB2q3gErZ2UhAiCma2NcMoU96f5dXxmJiYihN3nb59xGrSbP4tS"
}