# Bitcoin Name System (BNS)

- [What is BNS?](/guides/bitcoin-name-system-bns/what-is-bns.md): What is the Bitcoin Name System?
- [When do BNS-names expire?](/guides/bitcoin-name-system-bns/when-do-bns-names-expire.md): When do BNS-names expire?
- [How can I register a BNS name/ .btc name?](/guides/bitcoin-name-system-bns/how-can-i-register-a-bns-name-.btc-name.md): How can I register a BNS name/ .btc name?
- [Send BTC to a .btc BNS name](/guides/bitcoin-name-system-bns/send-btc-to-a-.btc-bns-name.md): How can I send BTC to a .btc name (BNS name on Stacks) with the Wallet extension?
- [Check BNS name expiration](/guides/bitcoin-name-system-bns/check-bns-name-expiration.md): How can I check the expiration block of a BNS name using the explorer sandbox?