Yes, that's interesting number to name for a sportsbook
Is there a significance to the owner why they chose those numbers?

By the way, welcome to the forum.
I see that you already have your license from Costa Rica.
And also, this is one of the sportsbooks that I've seen here allowing the use of VPN, which is good for those users who want to use VPN.
And are you going to add more cryptocurrencies in the future aside from bitcoin?