Private Transfers

Send tokens with complete anonymity using Zero-Knowledge proofs.

What are Private Transfers?

Private transfers allow you to send shielded tokens to another shielded address without revealing:

  • Sender address

  • Receiver address

  • Transfer amount

  • Transaction history

How It Works

Shielded Wallet A    ZK Proof Transfer    Shielded Wallet B
   (Hidden)      ━━━━━━━━━━━━━━>      (Hidden)

   5.0 SOL          Amount: [HIDDEN]       5.0 SOL
                    From: [HIDDEN]
                    To: [HIDDEN]

On-chain, observers only see:

  • A ZK proof was verified

  • A transaction occurred

  • NO details about who, what, or how much

Transfer Process

Step 1: Get Recipient Address

Recipient shares their shielded address:

0zk_9f8e7d6c5b4a3210fedcba9876543210abcdef

Step 2: Check Your Balance

$ balance

Public Balance:  2.5 SOL
Shielded Balance: 5.0 SOL  ✅

Step 3: Send Private Transfer

Command:

$ transfer <recipient_address> <amount>

Example:

$ transfer 0zk_9f8e7d6c5b4a3210fedcba 1.5

⏳ Validating recipient address...
⏳ Generating ZK proof...
⏳ Broadcasting transaction...
✓ Private transfer completed!

ZK Proof: 0x3f2e1d0c9b8a7f6e5d4c3b2a
Transaction: [PRIVATE]

Your Balance: 3.5 SOL (5.0 - 1.5)
Recipient will see funds in ~30 seconds

Step 4: Confirmation

Recipient can verify receipt:

$ balance

Shielded Balance: 6.5 SOL  ✅ (+1.5 SOL)

Transfer Features

Standard Transfer

Basic private transfer:

$ transfer 0zk_abc123... 2.0

Transfer with Memo

Add encrypted memo (only recipient can read):

$ transfer 0zk_abc123... 2.0 "Payment for services"

✓ Transfer sent with encrypted memo

Delayed Transfer

Schedule transfer for later:

$ transfer 0zk_abc123... 2.0 --delay 30m

⏳ Transfer scheduled for 30 minutes
Cancel with: cancel-transfer TX_abc123

Recurring Transfer

Set up automatic payments:

$ transfer 0zk_abc123... 1.0 --recurring daily

✓ Recurring transfer set up
Frequency: Daily at 12:00 UTC

Advanced Options

Custom Gas

Set custom gas for faster confirmation:

$ transfer 0zk_abc123... 2.0 --gas 0.002

⏳ Using priority gas: 0.002 SOL
✓ Transfer completed in 3 seconds

Multi-Recipient

Send to multiple addresses:

$ transfer --multi \
  0zk_addr1... 1.0 \
  0zk_addr2... 2.0 \
  0zk_addr3... 0.5

⏳ Processing 3 transfers...
✓ All transfers completed
Total sent: 3.5 SOL

Split Payment

Split amount among recipients:

$ transfer --split 6.0 \
  0zk_addr1... \
  0zk_addr2... \
  0zk_addr3...

✓ 6.0 SOL split equally (2.0 each)

Transaction Privacy

What's Hidden

✅ Sender address (completely hidden) ✅ Receiver address (completely hidden) ✅ Transfer amount (completely hidden) ✅ Transaction metadata (completely hidden) ✅ Balance changes (completely hidden)

What's Visible

❓ A ZK proof was submitted ❓ Proof verification result (valid/invalid) ❓ Approximate timestamp

Privacy Level

Privacy Score: ██████████ 100%

Private transfers provide MAXIMUM privacy

Verification

Verify Receipt (Recipient)

Recipient can check their balance:

$ balance
$ tx

Both show updated balance without revealing sender.

Verify Sending (Sender)

Sender can verify transaction:

$ tx

Recent Transactions:
1. Private Transfer  1.5 SOL  [✓ Completed] 1min ago
   To: [PRIVATE]
   ZK Proof: 0x3f2e...

Common Issues

Issue: Insufficient Shielded Balance

$ transfer 0zk_abc... 10.0

✗ Error: Insufficient shielded balance
Available: 5.0 SOL
Required: 10.0 SOL + gas

Solution: Shield more tokens first or reduce amount.

Issue: Invalid Recipient Address

$ transfer invalid_address 1.0

✗ Error: Invalid shielded address format
Expected format: 0zk_...

Solution: Double-check recipient address (must start with "0zk_").

Issue: Transaction Timeout

$ transfer 0zk_abc... 2.0

⏳ Waiting for confirmation...
✗ Timeout: Transaction not confirmed

Solution: Check network status or retry with higher gas.

Security Tips

  1. ✅ Always verify recipient address before sending

  2. ✅ Start with small test amounts for new recipients

  3. ✅ Save transaction proofs for your records

  4. ✅ Use memos for tracking (optional, encrypted)

  5. ✅ Check balance after sending to verify

Transaction Fees

Transfer Type
Gas Fee
Time

Standard

~0.001 SOL

5-10s

With Memo

~0.0015 SOL

5-10s

Multi-recipient

~0.001 SOL each

10-20s

Recurring Setup

~0.002 SOL

5-10s

FAQ

Q: Can anyone trace my private transfer? A: No, Zero-Knowledge proofs ensure complete untraceability.

Q: Does the recipient know who sent it? A: No, unless you include identifying info in the encrypted memo.

Q: Can I cancel a transfer? A: Only if it's a delayed transfer and hasn't been executed yet.

Q: Are there transfer limits? A: No limits, but large amounts may require additional confirmation time.

Next Steps

Previous: Shielding Tokens | Next: Privacy Mixer

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