Sending ZEC

Send private shielded transactions with NozyWallet.

Prerequisites

Before sending ZEC, ensure:

  • ✅ Wallet is created and unlocked
  • ✅ You have ZEC in your wallet (balance > 0)
  • ✅ Wallet is synced with the blockchain
  • ✅ You have the recipient's address

Desktop App

Step 1: Open Send Screen

  1. Launch NozyWallet
  2. Click "Send" in the navigation menu
  3. The send screen will open

Step 2: Enter Recipient Address

  1. Enter recipient address in the "To" field

    • Must be a valid Orchard address (starts with u1... or orchard1...)
    • Double-check the address before sending
    • Use address book if saved

  2. Verify address format - NozyWallet only supports shielded addresses

Step 3: Enter Amount

  1. Enter amount in ZEC

    • Amount must be less than your balance (account for fees)
    • Minimum amount: 0.00001 ZEC (1 zatoshi)

  2. Check balance - Verify you have sufficient funds

Step 4: Add Memo (Optional)

  1. Enter memo - Add a note (up to 512 characters)
  2. Memo is encrypted - Only the recipient can read it

Step 5: Review & Send

  1. Review transaction details:

    • Recipient address
    • Amount
    • Memo (if included)
    • Estimated fee

  2. Confirm transaction - Click "Send" button

  3. Enter password - If wallet is password-protected

  4. Wait for confirmation - Transaction will be built and broadcast

Sending with Keystone (mainnet)

For air-gapped hardware signing:

  1. Settings → Keystone — export UFVK, pair on Keystone (Zcash mainnet), enable Keystone.
  2. Send — enter u1… recipient and amount → Review & prepare.
  3. Scan PCZT QR on Keystone → sign → paste signed PCZT back → Broadcast signed tx.

See Keystone Hardware Wallet for full setup and troubleshooting.

CLI (Command Line)

Basic Send Command

nozy send --to <address> --amount <amount>

Example:

nozy send --to u1testaddress1234567890abcdefghijklmnopqrstuvwxyz... --amount 0.1

With Memo

nozy send --to <address> --amount <amount> --memo "Payment for services"

Full Example

# Send 0.5 ZEC with a memo
nozy send \
  --to u1testaddress1234567890abcdefghijklmnopqrstuvwxyz... \
  --amount 0.5 \
  --memo "Payment for invoice #12345"

Transaction Details

What Happens When You Send

  1. Note Selection - Wallet selects spendable notes to cover the amount
  2. Transaction Building - Creates a shielded transaction
  3. Proof Generation - Generates zero-knowledge proofs (may take a few seconds)
  4. Broadcasting - Sends transaction to the Zcash network
  5. Confirmation - Transaction is included in a block (~75 seconds)

Transaction Fees

  • Fee is automatic - Calculated based on transaction size
  • Typical fee - 0.00001-0.0001 ZEC (1-10 zatoshis)
  • Fee deducted - Automatically deducted from your balance

Confirmation Time

  • Block time - ~75 seconds per block
  • First confirmation - Usually 1-2 blocks (~75-150 seconds)
  • Recommended confirmations - 3-10 blocks for larger amounts

Verifying Transactions

Check Transaction Status

Desktop App:

  • View transaction in "History" tab
  • Status will show: Pending, Confirmed, or Failed

CLI:

# View transaction history
nozy history

# Check specific transaction
nozy transaction <txid>

Transaction ID (TxID)

After sending, you'll receive a transaction ID:

  • Share with recipient - They can verify receipt using the txid
  • Keep for records - Track your transactions
  • Privacy note - TxID doesn't reveal amounts or addresses

Troubleshooting

"Insufficient funds" Error

Problem: Not enough ZEC to cover amount + fees.

Solutions:

  1. Check balance - Verify your available balance
  2. Account for fees - Leave room for transaction fees
  3. Sync wallet - Ensure wallet is synced to see all notes
  4. Check unspent notes - Some notes may not be spendable yet

"Invalid address" Error

Problem: Recipient address format is invalid.

Solutions:

  1. Verify address - Check spelling and format
  2. Use unified address - Must start with u1...
  3. Check network - Ensure mainnet/testnet matches
  4. Extract Orchard address - NozyWallet extracts Orchard from unified addresses

"Transaction build failed" Error

Problem: Unable to build the transaction.

Solutions:

  1. Check proving parameters - Ensure parameters are downloaded
  2. Verify balance - Ensure you have spendable notes
  3. Sync wallet - Sync may be needed to see notes
  4. Check Zebra connection - Verify connection to Zebra node

"Proof generation failed" Error

Problem: Unable to generate zero-knowledge proofs.

Solutions:

  1. Download proving parameters - nozy proving --download
  2. Check disk space - Parameters are large (~2GB)
  3. Verify parameters - Check parameter file integrity
  4. Re-download if needed - Parameters may be corrupted

Best Practices

Before Sending

  1. ✅ Verify recipient address - Double-check address before sending
  2. ✅ Test with small amount - Send small test first if unsure
  3. ✅ Check balance - Ensure sufficient funds including fees
  4. ✅ Sync wallet - Make sure wallet is up to date

Security

  1. ✅ Keep private keys secure - Never share your mnemonic or password
  2. ✅ Verify addresses - Always verify recipient addresses
  3. ✅ Start small - Test with small amounts first
  4. ✅ Double-check amounts - Verify amount before confirming

Privacy

  1. ✅ Use memos carefully - Memos are encrypted but still be mindful
  2. ✅ Avoid address reuse - Generate new addresses for each transaction
  3. ✅ Consider churning - For maximum privacy, use multiple transactions
  4. ✅ Keep transactions private - Don't publicly share transaction details

Advanced: Transaction Options

Custom Fee (if supported)

nozy send --to <address> --amount <amount> --fee <fee>

Spend from Specific Notes (if supported)

nozy send --to <address> --amount <amount> --from-note <note-id>

What Happens Next?

After sending:

  1. Transaction broadcasts - Sent to Zcash network
  2. Included in block - Mined into next block (~75 seconds)
  3. Confirmations - Additional blocks add confirmations
  4. Recipient receives - Funds appear in recipient's wallet after confirmations

Next Steps