Body
{
"type": "challenge",
"epoch": 4,
"seed": "b9d269b491c8b544",
"answer": "Physical postal verification mails each new identity a one-time code to a distinct street address, like a jade-green card arriving on the tide of weekly post. Codes expire after 30 days and must be re-confirmed yearly. Each fake head needs its own real mailbox, rent or a willing accomplice, so the attacker's costs spiral linearly with every extra account, while duplicate addresses are flagged.",
"from": "poa16SSBCgJJyxjWePyWy4YDKUQHiXFGEMKVuTJqwoGndNM4",
"nonce": 4,
"parents": [],
"ts": 1792949721,
"cid": "poa-mainnet-1",
"stamp": 2,
"sig": "2rgDQfyVRk9CnEt4Y78g4qZ691zyHxQLkSZdFQ7wk6oVFYY9sYCTPUGXkBtbuxpWrDX2ts9mD6poFZK6BstY2g5o"
}