look at converters to double check js-multibase

As I am going through other things in js-multibase, I may need to cross check it:

https://github.com/multiformats/js-multibase

https://www.rapidtables.com/convert/number/decimal-to-hex.html
Decimal to Hexadecimal converter

https://bitcoin.stackexchange.com/questions/52727/byte-array-to-hexadecimal-and-back-again-in-javascript

https://www.appdevtools.com/base58-encoder-decoder

ASCII,Hex,Binary,Decimal,Base64 converter

https://www.rapidtables.com/convert/number/ascii-hex-bin-dec-converter.html