Decentralized names are secured on the Bitcoin blockchain, registered by Stacks. You can use your .btc name to sign into hundreds of decentralized apps and to send and receive STX. At Gamma, your BNS name is used as your decentralized identity, and is automatically reserved as a profile URL for your NFT collection.

BNS names also function much like traditional domain names. Compatibility via a web bridge with the DNS system of web 2.0 allows you to use a .btc name for a business or personal site.

This is the BNS V2 contract, deployed in September 2024. It succeeded the V1 contract from Stacks mainnet launch in 2021.