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How It Works

Unipay provides privacy for Solana transactions through a graph-break primitive that separates the on-chain link between sender and recipient addresses.

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Architecture

1

Client Layer

React-based web application. Runs entirely in the browser with no server-side state.
2

Routing Layer

Stateless HTTP services that provide ephemeral deposit addresses. Never holds user funds.
3

On-Chain Integration

Direct integration with Solana programs: SystemProgram, Token Program, and liquidity aggregators.

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Execution Modes

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Wallet Mode

Standard Solana transaction flow with local signing: 
const transaction = new Transaction().add(
  SystemProgram.transfer({
    fromPubkey: wallet.publicKey,
    toPubkey: recipientAddress,
    lamports: amount
  })
);
Characteristics:
  • Direct on-chain transaction
  • Single signature required
  • Immediate execution

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Private Mode

Privacy-enhanced flow with routing layer. Client requests ephemeral deposit address. User sends funds to ephemeral address. Routing layer detects deposit and initiates output. Recipient receives funds from routing layer’s address.

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Privacy Model

Unipay provides graph-break privacy, not cryptographic anonymity. The routing layer can link inputs to outputs if subpoenaed.
Adversary TypeProtection Level
Passive chain analysis✅ Full
Competitor surveillance✅ Full
Routing layer subpoena❌ Linkable
Nation-state forensics❌ Not designed

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Design Principles

  1. Non-custodial by Default - Browser signs everything
  2. Stateless Services - No user state on servers
  3. Disclosed Tradeoffs - Privacy model shown in-product
  4. Zero Config - Connect wallet and start
  5. Failure is Loud - Errors surface immediately