With the functions in this package you can check the validity of the following financial instrument identifiers: FIGI (Financial Instrument Global Identifier < https://www.openfigi.com/about/figi>), CUSIP (Committee on Uniform Security Identification Procedures < https://www.cusip.com/identifiers.html#/CUSIP>), ISIN (International Securities Identification Number < https://www.cusip.com/identifiers.html#/ISIN>), SEDOL (Stock Exchange Daily Official List < https://www2.lseg.com/SEDOL-masterfile-service-tech-guide-v8.6>). You can also calculate the FIGI checksum of 11-character strings, which can be useful if you want to create your own FIGI identifiers.
Check validity of FIGI (Financial Instrument Global Identifier) and other financial identifiers (CUSIP, ISIN, SEDOL).