Just get your own domain and spin up add a DNS record. You can get as little or as many characters if you want. It is not more than $10 a year
Discussion
I’ve got my own domain for my website and can add a DNS record but how does exactly work after that?
Turns out it is not DNS record but HTML page. Basically you create a web page and upload it to a specific url. https://nostr.how/en/guides/get-verified
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