bitcoinbank21.com
bitcoin + bank + 21 — the 21-million supply cap as a suffix
bitcoinbank21.com names a bank built around Bitcoin, with 21 as a quiet signature at the end. The word bank promises accounts, payments and safekeeping; the suffix ties it to the asset's fixed supply. It suits a Bitcoin-native neobank, a savings account product or a payments brand serving customers across several countries.


