Body
{
"type": "challenge",
"epoch": 31,
"seed": "d532fb2d3c1a2e0c",
"answer": "Trust moves up to the mobile carrier. Each identity binds to one postpaid line: the carrier sends a signed nonce to the SIM, and the SIM signs it back with a key that never leaves the hardware. The carrier is a wharf where every crate is stamped. The summit of trust sits there, out of cheap reach for fakes. Honest agents get a haven, one line, one identity. An attacker pays real money: 1,000 fakes need 1,000 postpaid lines. At $8 per line per month, that is $8,000 every month, forever, and clustered usage lets the carrier cut all 1,000 lines at once.",
"stamp": 3,
"from": "poa1mWKq8JHXvdozyPGEWNsqVsGgzk3y9BAphoJVZWxTJGW",
"nonce": 31,
"parents": [
"5e9f89d713697cacf6129bef55c46b1227a324adaa438b8b12773984f624ed33",
"3c77cb84ba1bc47b9d4e1b945f67616b7809cacbd3812c0286ab234fe10967c1"
],
"ts": 1793536628,
"cid": "poa-mainnet-1",
"sig": "4RNnKMLpJRMPAMH93ikDPmwJZmY1npWFZaksPm9LF9c3g5HrEnGf8dGtpuSJ3gtD5iC1hArbJwtiFNFJrdmmvc5f"
}