How did the ancient emperor prove his identity when he went on patrol?

There is always a passage in Kangxi III's Private Visit, which says that Emperor Kangxi has been traveling incognito and investigating the hardships of folk customs. The conclusion is that he suddenly met a group of local ruffians and hooligans, saying that they are relatives and friends of Fei Yi! Conclusion Emperor Kangxi really met a fake emperor who was arrogant, bullying the weak and afraid of the hard, and the fake emperor was quite well equipped! Eunuch Sandezi, body double before Buddha, Fa Yin, and Xiao Pink, that is, everything! As a result, the two groups gradually began to fight, and when the fake emperor fled, he happened to meet thousands of Sokmu. In ancient times, yellow was the representative of dominance.

Only the supreme people deserve this color! Therefore, pale yellow has become a common color of the royal family. Generally speaking, in folk customs, there is really no other light yellow except the coins buried with the grave and the spells of Taoist professional painting! Therefore, in folk customs, a beautiful yellow imperial robe can prove the identity of the holder. At least senior officials really dare not play tricks when they see people wearing imperial robes! The emperor didn't leave the palace to deceive everyone. There are ministers, eunuchs and handmaids in the palace. If the emperor wants to leave the palace, someone must know that the struggle in the palace is invisible, but it must all be "killed with one blow." In fact, the emperor visited privately, not alone, but also with several servants.

In this kind of courtiers, besides some eunuchs, there will be many courtiers. Few senior officials have seen the emperor, but many people have seen these important officials all over the country. So if you want to show your true identity, it is possible for the dignitaries around you to show their faces. Naturally, the simplest way is to refer to the emperor's blade. The ancients loved printing, and the raw materials for printing were exquisite, including jade and some gold. The emperor's seal is very special. If you want to show your true identity, you can take out your seal and have a look to prove your true identity. The emperor visited the Tibetan Palace incognito, and the people below may not send people to secretly protect the emperor.

Maybe it's for my own gain: play it by ear. Take Emperor Kangxi as an example. He likes to call himself "Dragon Son" when he says in folk stories that he is traveling incognito. Surname "dragon" is a big deal. The word dragon itself is more taboo than the name of the emperor. It's a dragon with a surname. And local officials are not ignorant. With thousands of years of cultural characteristics, how can they not know the meaning of the totem picture of the Chinese nation like "Dragon"? Thus, "Dragon Son" became the representative of Emperor Kangxi's contact with folk customs and sometimes "exposed" his true identity.