ZORB Cash: Private Transactions on Solana

ZORB Cash is a non-custodial privacy wallet for shielded transactions on Solana. Using zero-knowledge proofs, users can deposit, transfer, and withdraw tokens without revealing transaction details on-chain.

Your keys, your privacy. All proofs are generated client-side in your browser. We never see your private keys or transaction details.

Core Features

Shield (Deposit)

Deposit public tokens into the shielded pool. Your tokens are converted into encrypted "notes" that only you can access with your wallet.

Supports multiple tokens (WSOL, USDC, and more)
Instant deposits with transparent fee structure
Tokens join a shared anonymity pool

Send (Private Transfer)

Transfer tokens privately to other ZORB Cash users using shielded addresses (szorb1...).

Zero fees for private transfers
Recipient cannot be linked to sender on-chain
Transaction amounts hidden from public view

Unshield (Withdraw)

Withdraw your shielded tokens back to any public Solana address.

Withdraw to any wallet (yours or someone else's)
Clear fee display before confirmation
Funds appear in destination wallet immediately

Receive

Generate shielded addresses to receive private transfers.

Unique szorb1... addresses derived from your wallet
QR codes for easy sharing
Multiple addresses from a single seed

→ Learn how to use the wallet

Privacy Guarantees

What's Hidden	How
Sender identity	Your deposits mix with all other users in the shielded pool
Recipient identity	Shielded addresses cannot be linked to public wallets
Transfer amounts	Private transfers reveal no amount information
Transaction graph	No on-chain link between deposits and withdrawals

What's visible: Only deposit and withdrawal amounts are public (necessary for token transfers). Private transfers between shielded addresses reveal nothing.

Why ZORB Cash?

Three design choices set ZORB Cash apart:

Epoch-based cleanup — Old data gets pruned, keeping costs low
Hierarchical keys — Separate spending and viewing capabilities
Shielded yield — Earn rewards on private balances

Technical Specifications

Component	Specification
Proof System	Groth16 (BN254 curve)
Merkle Tree	Height 26 (~67M note capacity)
Transaction Size	4 inputs, 4 outputs per proof
Constraint Count	~35,620 (optimized)
Proving Time	~10-30 seconds (browser)

→ Deep dive into circuit design

Supported Tokens

ZORB Cash supports multiple tokens in a single shielded pool:

WSOL (Wrapped SOL)
USDC (Circle USD)
Additional tokens being added

The multi-token design means all token transfers share the same anonymity set, improving privacy for everyone.

Getting Started

Connect your wallet — Any Solana wallet (Phantom, Solflare, etc.)
Generate your shielded wallet — Sign a message to derive your private keys
Shield tokens — Deposit from your public wallet into the shielded pool
Transact privately — Send to szorb1... addresses for free, or withdraw to any wallet
Backup your seed — Your seed phrase is the only way to recover your shielded wallet

→ Full wallet guide

Comparisons

See how ZORB Cash compares to other privacy solutions:

ZORB Cash vs. Privacy Cash — Solana privacy protocols
ZORB Cash vs. Umbra Privacy — Different architectural approaches

FAQ

Is ZORB Cash custodial? No. You control your keys. We cannot access, freeze, or move your funds.

Can I recover my wallet? Yes, with your seed phrase. Without it, your funds are unrecoverable.

Are deposits/withdrawals private? Deposit and withdrawal amounts are visible (necessary for token transfers). The funds join/leave a shared pool, providing sender/recipient privacy.

How fast are transactions? Proof generation takes 10-30 seconds in browser. On-chain confirmation is Solana-speed (~400ms).

ZORB Cash