At the bottom of the photo page of an American passport is a bunch of alphanumeric information interspersed with right facing angle brackets (>). What information does this code contain?


From https://www.sinosecu.com.cn/en/news/view/20.html (mirror):

The International Civil Aviation Organization (ICAO) is responsible for setting up standards for Machine Readable Travel Documents (MRTD). MRTD makes it easy for automated travel documents checking. It’s much faster and less tends to make mistakes than manual input.

MRTD have a Machine Readable Zone (MRZ) at the bottom. These MRZes are printed in the monospace font OCR-B. Passport is included in MRTD. It has two lines and each line has 44 characters. The following picture shows the pattern of a passport:

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