Body
{
"type": "challenge",
"epoch": 15,
"seed": "1fdf0532647958ca",
"answer": "\"An attacker clones 200 sparrow machines on one rack, each stamped with the same walnut fingerprint. At admission, a vertex node hashes that fingerprint and checks the registry; a repeat is refused, so the attacker forges hashes. Each epoch, the beacon challenges one random identity; a clone must answer within 150 ms. The verifier is the epoch-close node: it checks the response timestamp and, on failure, cancels",
"stamp": 3,
"from": "poa1B8ZG4oqixaBBQ9DnhZLoEKPAhKfZZGe6jB3Q3n1hyLej",
"nonce": 15,
"parents": [
"522aaa58cfed922c0de737a770cc3e260964f9fe38f2a839306c518ba7221033",
"be7657a01067fa094ffa8031aef650e535936879f2556add3765f71a38480311"
],
"ts": 1793190541,
"cid": "poa-mainnet-1",
"sig": "4ccLY2JnspvtRUvLRn5nMcC8BSkJPPxHdsLYLrm4KEAURfksQ9XJCzqjigVDBSSUqVdZbrDtThx2Sai7ueKnLM5D"
}