What is the Spark network?

The Spark network is a fast way to send and receive Bitcoin without waiting for every transfer to be confirmed directly on the Bitcoin blockchain.

In Bitnomi, Spark payments use your BTC Pay wallet.

Why use the Spark network?

Fast transfers

Spark payments are usually completed almost instantly, making them useful when you need to move Bitcoin quickly.

Currently no network fee

The Spark network currently does not charge a network fee for transfers.

This may change in the future, so always review any fees shown before confirming a transaction.

Useful for smaller payments

Spark is suitable for smaller transfers, frequent payments, and sending Bitcoin between wallets that support the network.

Still Bitcoin

Spark does not create a different type of Bitcoin. You are still sending and receiving Bitcoin through your BTC Pay wallet.

Spark is built to move Bitcoin quickly while remaining connected to Bitcoin’s underlying infrastructure. (Spark Documentation)

How long do Spark payments take?

Spark payments are usually completed within seconds.

The exact time may depend on:

• Network availability

• The sender’s and recipient’s wallets

• Whether both wallets support Spark

• The validity of the Spark address

A failed Spark payment normally means the Bitcoin was not sent.

Why could Spark fees change?

Spark transfers currently have no network fee, but this may not always remain the same.

Fees could change as the network, its services, or Bitnomi’s implementation develops. Always check the transaction preview for the latest fee before confirming.

When should I use Spark?

Spark may be suitable when you:

• Want to send Bitcoin quickly

• Are making a smaller transfer

• Want to avoid an on-chain confirmation wait

• Are paying someone whose wallet supports Spark

• Want the Bitcoin added directly to BTC Pay

For a standard Bitcoin address or a larger on-chain transfer, use BTC Vault instead.

Spark in Bitnomi

How is Spark different from Lightning?

Both Spark and Lightning provide faster Bitcoin payments through BTC Pay, but they use different payment details.

• Lightning uses a Lightning invoice or supported Lightning address.

• Spark uses a Spark address.

• The recipient’s wallet must support the network you choose.

What should I check before using Spark?

Make sure both the sender and recipient support the Spark network.

Do not use a Spark address for a Lightning or Bitcoin on-chain payment. Choosing the wrong network may cause the transaction to fail or result in loss of funds.