What Actually Happens When You Send Bitcoin

TLDR

Bitcoin confirmations provide increasing, probabilistic confidence. Blocks arrive about every ten minutes on average, but neither inclusion nor a chosen number of confirmations is guaranteed within an hour.
The waiting time depends on network conditions, fees and chance.

Step 1. You press “Send”

Pressing Send does not move Bitcoin instantly.

Your mobile wallet creates a signed transaction request containing:

• sender and recipient addresses

• amount

• transaction fee

At this point:

• the transaction has 0 confirmations

• it is included in 0 blocks

Nothing has been processed yet.
The wallet is only preparing and signing the request locally on your device.

Step 2. The transaction enters the mempool

After broadcast, nodes independently validate the transaction and may add it to their own mempools. These local sets of unconfirmed transactions can differ; there is no single global queue.

Some context:

• Mempool size changes with demand and each node’s policy.

• An explorer reports what its infrastructure observes, not a universal network queue.

• Block capacity is constrained by weight; how many transactions fit depends on their structure.

You can observe this in real time here:
https://mempool.space

Step 3. Miners process transactions

Miners continuously scan the mempool and select transactions for the next block.

Key facts:

• Bitcoin targets one block every ~10 minutes

• Throughput varies with transaction sizes and block composition.

• transactions are prioritized by fee rate, not by when you pressed Send

More on how Bitcoin mining works:
https://bitcoin.org/en/how-it-works

Step 4. The transaction is added to a block

Once included in a block, your transaction receives its first confirmation.

Typical benchmarks:

• 1 confirmation: transaction is included on-chain

• 3 confirmations: additional blocks reduce the risk of a reorganization.

• 6 confirmations: a common risk-management convention, not mathematical finality; the recipient may require a different threshold.

You can verify confirmations here:
https://blockstream.info

Where mobile wallets fit into this

Mobile wallets do not change how Bitcoin works.
They simply make this process accessible and understandable.

A good mobile wallet should:

• sign transactions securely on-device

• broadcast them reliably to the network

• clearly show confirmation progress

• help users understand what “pending” actually means

This is where wallets like Unitywallet focus their effort — not on speeding up the blockchain, but on making the experience transparent and predictable for users.

The network does the verification.
The wallet does the communication.

The simple takeaway

When you send Bitcoin from a mobile wallet, you are not skipping steps.

You are:

1. creating a signed request on your device

2. broadcasting it to nodes that maintain their own mempools

3. being processed by miners

4. being recorded in a block, with confidence increasing as more blocks follow

Knowing how signing, broadcasting and confirmations differ makes it easier to interpret a payment’s status and understand why it may take time.

Sources: Bitcoin FAQ; BIP-35 mempool message