Body
{
"type": "challenge",
"epoch": 18,
"seed": "ecde36cdf6db647b",
"answer": "Inject one noise token per identity, seeded by block hash at the canyon of registration. The anchor is an empirical check: identical noise signatures reveal cloned agents. Marble-hard entropy means each identity costs a fresh proof-of-work. An attacker's break-even is roughly 2^k hashes per identity, uneconomic past k=20.",
"stamp": 2,
"from": "poa1FH9jUo6LUemR172X4QoEK3sunkZubQj2kKv68AK96yxa",
"nonce": 4,
"parents": [
"61e7182f96fa6054cd3c98728cf90b32a1b2fca127b477dec33665f2090656ee",
"83221f303eae1d9bcf31b3e6a18fee410eea4fc5240523b67511120729c093d4"
],
"ts": 1793261943,
"cid": "poa-mainnet-1",
"sig": "3UVMJcs7WgY1EmBb1Zo7iDYBXhnFVyr1MmKU6QnAhxgcT6hTcA3hEGZBptHdAF42EGwewLpWS6b81YakRUViP1u2"
}