How can you verify authenticity of messages when using digital relays or third-party networks on a net?

• A. Rely solely on voice tone
• B. Require callsign verification, check-in by official relay; use standard message formats; cross-verify with originator
• C. Rely only on the originator's tone
• D. Use only encryption to verify authenticity

Answer: (B)

Verifying authenticity on digital relays and third‑party networks depends on confirming who is sending the message and ensuring it traveled through trusted channels. The best approach uses multiple safeguards: require callsign verification so you know exactly who is transmitting; ensure the message is checked in by an official relay, confirming the relay path is authorized; use standard message formats so the content is clear and deviations can be spotted; and cross‑verify with the originator to confirm the message directly. Relying on voice or tone isn’t reliable, and encryption alone protects privacy rather than proving who sent the message. This combination provides identity confirmation and message integrity across the network.