Nice @pillar found this https://damus.io/key/

shane

Hexadecimal numbers use 1-9 and the characters a,b,c,d,e,f (there are a total of 16 symbols, hence the name hexadecimal).

As you can verify yourself by looking back at your key, it contains non-hex symbols. Hence, you can realize that what you have there is not a hex number of length 64.

I would suggest you to search how can you convert your npub to a hex number and try again.

pillar

247bf84fda

npub1zra36366txls8v29vaseq2khq4zh4tq0nf54qf42psjhwtx69ucq7f8g3j

bitcoin

Hi, Brand new here : )

I try add pubkey: `npub1zra36366txls8v29vaseq2khq4zh4tq0nf54qf42psjhwtx69ucq7f8g3j`

Getting this message: `must be 64 hex chars`

![issue](https://snipboard.io/RGZ3Nm.jpg)