Get your handle on Bitcoin.
Own your digital identity. No Permission Required.
True sovereignty
in the
digital Age
Your @bitcoin identity is anchored directly to Bitcoin's blockchain - inheriting its security, censorship-resistance, and permissionless nature. No corporate gatekeepers. No centralized databases. Just pure cryptographic ownership.
Why @bitcoin subspaces?
Built on the Spaces Protocol - Leverages Bitcoin's unmatched security without requiring any modifications to the protocol.
Self-Sovereign
Complete autonomy over your digital identity
Trustless Verification
Anyone can verify your identity through Bitcoin's blockchain
Zero Knowledge Proofs
Advanced privacy with sophisticated light clients
Uncensorable
Once registered, no one can take your name away
How it Works
Spaces Protocol represents your @bitcoin identity as a Bitcoin UTXO, giving you complete control with the same security model you trust for your bitcoin. Transfer, update, or manage your identity with standard Bitcoin transactions.
Unlike traditional domain systems or alternative naming services, @bitcoin identities are:
HASHRATE
AUTHORITIES
CRYPTOGRAPHIC PROOFS
Join the Cypherpunk Revolution
FAQ
A subspace is your unique identifier in the bitcoin community (like bob@bitcoin) that functions as a trustless Bitcoin-secured identity. It's kind of like .eth but created on and for Bitcoin, and backed by Bitcoin's proof of work.
Unlike ENS which relies on Ethereum, @bitcoin identities leverage Bitcoin's existing infrastructure and security model directly – no new blockchains, no additional trust assumptions. You own your @bitcoin name forever, with the same keys that secure your Bitcoin.
Only you. Your identity is linked to a Bitcoin UTXO that you control with your keys. No administrator or company can revoke or control your identity.
Reservations are forever, you don't need to renew yearly like with traditional domain names or .eth.
Some of the first things we plan to build integrations for are payment addresses, nostr usernames, and domain names. It can be used to tie any data to a name in a decentralized and cypherpunk way, secured by Bitcoin.
1,2 and 3-character names are reserved for later release. You can register a name between 4 and 63 characters.
Your @bitcoin identity ownership is verified through a Certificate, which contains your public key and cryptographic proof linking you to the Bitcoin blockchain. There are several ways to verify your ownership:
- Check your Certificate: Your ownership of a subspace (like yourname@bitcoin) is verified through a Certificate that contains your public key and a cryptographic proof linking you to the community's on-chain commitment.
- Verify against the global_root: For directly on-chain subspaces, you can verify ownership by checking that an inclusion proof hashes to the global_root in the state header.
- For off-chain subspaces: Verify ownership by checking an exclusion proof against the global_root and then verifying an inclusion proof related to the commitments_root.
- Make a transaction: The most practical way to prove ownership is to sign a message or make a transaction using the private key associated with your Certificate. Since only you control this key, successfully completing such an action proves your ownership.
- Check the blockchain: Your @bitcoin identity is represented as a Bitcoin UTXO that you control with your keys, giving you the same security model you trust for your bitcoin. Anyone can verify your ownership through Bitcoin's blockchain.
Yes. Your identity is represented as a Bitcoin UTXO which can be transferred trustlessly, like any other bitcoin transaction.