@bitcoin
How It Works
Get your handle @bitcoin with Nacho
Overview
This website allows you to register subspaces (handles) under the @bitcoin space, such as alice@bitcoin or bob@bitcoin.
Handles can be purchased through this website and claimed using Nacho, a mobile application that securely stores your keys for the Spaces Protocol—both for @bitcoin and other spaces.
How to Get Your Handle
Follow these steps to purchase and claim your handle:
  1. Download and Initialize Nacho
    Install the Nacho mobile application and open it. During initialization, a secure seed phrase will be generated. Back up this seed phrase safely—you'll need it to recover your keys.
  2. Generate a Handle Request
    In Nacho, generate a handle request for your desired name (e.g., alice@bitcoin). This creates a JSON request containing your public key, which will be sent to the operator to register your handle.
  3. Purchase Your Handle
    Copy the JSON request from Nacho and paste it into the purchase form on this website. Complete the checkout process and payment.
  4. Access Your Handle Page
    Shortly after payment, you'll be able to access your handle's page, which displays a QR code containing your subspace information and certificate.
  5. Import to Nacho
    Scan the QR code with Nacho to import your handle along with its certificate. Your handle is now ready to use!
⚠️ Important: Your Key is Permanent
Once your key is set for a handle, it cannot be changed. The key is bound to your handle permanently. Be careful when generating your handle request and make sure to securely back up your Nacho seed phrase. Without it, you cannot recover your keys.
Understanding Certificates
When you register a handle, you receive a certificate that proves ownership of your subspace. Here's how it works:
The operator periodically posts the updated root anchor of the @bitcoin space on-chain. This root anchor cryptographically represents all registered subspaces within @bitcoin.
Your certificate is a Merkle proof that demonstrates:
  • Your subspace exists within the @bitcoin space
  • Proof of non-existence before your registration (showing the handle was available when you claimed it)
  • The authenticity and validity of your ownership
This cryptographic proof ensures that your handle registration is verifiable and tamper-proof.
Verifying Your Certificate
You can independently verify your certificate using the subs command-line tool: github.com/spacesprotocol/subs
This allows anyone to cryptographically verify that your handle is legitimately registered on-chain.
Ready to Get Started?
Purchase a Handle