Anyone can type "serial verified" in their bio. Here is how to tell the difference:
If clicking the badge does nothing, the account is not truly serial verified.
Swap the serial cable with a known good, shielded cable. Pinching or bending can break internal grounds. After swapping, run: showpm serial verified
showpm serial verified --loopback
If loopback passes but normal fails, suspect the remote device’s UART.
When you invoke the command (typically via a terminal emulator like PuTTY, minicom, or a proprietary management console), a healthy "serial verified" response might look like this: Anyone can type "serial verified" in their bio
> showpm serial verified
STATUS: VERIFIED
Port: COM1
Baud: 115200
Parity: None
Data Bits: 8
Stop Bits: 1
CRC32: 0xA4F3C2B1 (MATCH)
Framing Errors: 0
Buffer Overruns: 0
Last Verified: 2025-01-15 14:32:07.442
An unverified state is far more alarming:
> showpm serial verified
STATUS: FAILED - MISMATCH
Expected CRC: 0x6D2E8F9C
Received CRC: 0x1A47B02D
Frame Errors: 12
Noise Counter: 3
Action Required: Re-initialize serial bridge.
The keyword here is verified—it tells you that not only did data arrive, but it arrived correctly. If clicking the badge does nothing, the account
Because "showpm serial verified" is so valuable, scammers have emerged offering "instant verification" for a fee. Avoid these at all costs.
| Red Flag | Reality | | :--- | :--- | | "Pay $50 for same-day serial." | ShowPM never charges for verification. It is free. | | "Send your password for verification." | Official agents never ask for login credentials. | | "Click this link to verify." | Verified status is applied server-side; no external links are required. |
If you encounter a user claiming to be serial verified but their badge is missing a clickable serial number, report them immediately. Genuine serial numbers are always hyperlinked to a public ledger page.