🌉 Alien Gateway

Send crypto to @username on Stellar

Alien Gateway is a **Stellar Naming Service ** — a decentralized, privacy-preserving username system for crypto payments on Stellar.

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What It Does

• Maps @username → wallet address
• Enables payments using human-readable names
• Works natively with Stellar payments and memos
• Prevents wrong-address transfers
• Preserves user privacy using ZK proofs

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Why SNS

• Wallet addresses are long and error-prone
• Users manage multiple wallets across chains
• Public name registries leak identity data

SNS treats usernames as a core payment primitive, not just metadata.

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How It Works

1. User registers @username
2. Username is stored as a ZK commitment, not plaintext
3. Availability is proven using Circom ZK proofs
4. Username resolves to a wallet at payment time
5. Stellar transaction is routed with memo support

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Zero-Knowledge Design

• Usernames are never stored on-chain in plaintext
• Existence / non-existence is proven via ZK
• Registry is backed by a Sparse Merkle Tree
• Only a single Merkle root is anchored on-chain

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Core Components

• SNS Registry (Soroban)

  • Stores commitments
  • Anchors Merkle root

• ZK Verifier

  • Verifies Circom proofs

• Wallet Resolver

  • Maps username → wallet
  • Supports exchange memos

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Use Cases

• Wallet payments
• Exchange deposits
• DAO payouts
• Creator tipping
• Cross-border transfers

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Vision

One username. One identity. Stellar-native.

Alien Gateway aims to be the identity and payment resolution layer for the Stellar ecosystem.