How Crypto Transactions Work Under the Hood?

Let’s suppose you sent someone Bitcoin, Ethereum, or other cryptocurrency, and they received it within a short time, around half an hour.

Now, you will think this transaction was just a game of your single click. It will feel like magic that you only clicked the “Send Button,” and the other person received it instantly, without an intermediary or any verification.

However, the reality is not what you think or believe it is. If you ever find out what’s happening under the hood, you will surely be shocked.

To eliminate such an illusion (this transaction process is straightforward) from your minds and increase your knowledge, I have written this guide for you.

What Are Crypto Transactions?

A crypto transaction is the process of sending or receiving cryptocurrency between digital wallets on a blockchain network.

Each transaction is verified by network participants, securely recorded on a public ledger, and cannot be altered once confirmed, ensuring transparency and security.

Example

There are two crypto users, named “Jackson and Prince”. Jackson wants to send Ethereum to Prince for any purpose or for his service. Here, he will open his digital Crypto Wallet, enter Prince’s address, the crypto amount, and hit the send button. 

After a short time, Prince will receive this Ethereum, and Jackson’s wallet will show that “1 Ethereum has been sent successfully from Jackson to Prince”. This process, from sending to receiving this cryptocurrency, is called a transaction.

How Crypto Transactions Work?

In the under section, I have mentioned the complete details on how crypto transactions work from your clicks to the confirmation on the blockchain.

Phase 1: Transaction Initiation

This process begins when a person who has to send cryptocurrency to another crypto user initiates a transaction. Here, he/she open their crypto wallet and enter the specific information, including;

• Sender’s address: First of all, the sender writes their own wallet address. 
• Receiver’s address: This is the wallet address of the receiver( who will receive this cryptocurrency).
• Specific amount: Specific amount means how many Bitcoins or Ethereum the sender wants to transfer. 

It’s time for a digital signature: After entering this information, the sender has to sign this transaction using their Private keys. This digital signature is a mathematical code that ensures that the transaction was created and authorized by the owner. 

Phase 2: Transaction Verification

After entering this information and signing the transaction, the sender hit the “Send” option. As soon as the sender hits this option, the system sends the transaction to a specific blockchain network (depending on the cryptocurrency) for detailed verification.

If you want to know what happens during this phase, read the text below. 

• Sign verification: The system verifies the digital signature to ensure the transaction is authorized by the cryptocurrency owner.
• Double-sending Check: The nodes check and ensure that the sender has not previously used the digital coin in someone else’s wallet
• Fund availability check: They also verify whether the sender’s wallet contains the specific amount of crypto coins.
• Format checking: Nodes verify that the transaction is valid and formatted properly. In short, this transaction should comply with the blockchain network rules.

You must verify the address to avoid crypto scams and have a safe transaction.

Phase 3: Mining & Staking(Transaction Storage)

If I say this is the most important phase of this crypto transaction process, it will not be wrong. Once nodes have verified this transaction, they package it into new blocks. In short, during this phase, the system creates new blocks and stores the transaction in a way that no one can alter or delete it.

However, these blocks are created by two different consensus mechanisms, “Mining and Staking”. Let’s discuss them briefly.

• Mining (Proof-of-work): The nodes that want to participate in the mining mechanism must have computational power. Now, they are given some tricky or complex puzzles. After solving them, the blockchain network allows miners to validate the transactions and create new blocks.
• Staking (Proof-of-stake): Here, the system selects nodes to create new blocks and permanently store the transactions in them. It chooses these validators or block creators based on how many coins they stake. The more coins they stake, the higher their chances of becoming validators.

To learn about the Mining vs Staking difference in detail, you can go through my article.

Phase 4: Finalization

The nodes finalize and add newly created blocks to the blockchain. Here, the transaction is permanently stored( as discussed in the previous section). This is the point where the receiver receives the cryptocurrency( sent by the sender). 

The system rewards nodes (miners and validators) with new coins or tokens and transaction fees for their extraordinary role.

But remember:

“This fee is charged from the sender’s wallet and given to them”.

The fee charged by a sender depends on several factors. I have listed a few of them in the section below.

• Transaction speed: If anyone wants the transaction to be confirmed and stored quickly, they have to pay a higher fee.
• Transaction size: The size of a transaction is directly proportional to the transaction fee charged to the sender. 
• Cryptocurrency: It also depends on which digital cryptocurrency you are sending to someone. For example, Bitcoin has its own transaction fee, and Ethereum has its own.

Final Thoughts

The process of cryptocurrency transactions often seems straightforward. However, very few people are aware of the things that happen at the backend. 

In this blog, I have explored how crypto transactions work. From transaction initiation to block creation, everything has been discussed in a detailed manner.

Hoping! After this guide, you will never consider this transaction process as just a one-click game again.

People Also Ask

What is the average time for a crypto transaction?

Most crypto transactions are confirmed within a few seconds to several minutes, depending on the blockchain and network traffic.

Why do crypto transactions require network confirmations?

Confirmations ensure the transaction is valid, secure, and permanently recorded on the blockchain.

Can a crypto transaction be reversed?

No, confirmed blockchain transactions are irreversible and cannot be changed or canceled.

What happens if I send cryptocurrency to the wrong wallet address?

The funds are usually lost permanently because blockchain transactions cannot be reversed.

Why do crypto transactions have network fees?

Network fees compensate validators or miners for processing and securing transactions on the blockchain.