What is Bitcoin Core?

Today, there are numerous crypto wallets available. Third-party developers created many of these wallets. However, there has been a dedicated wallet through Bitcoin software called the Bitcoin Core Client for users to store their Bitcoins since the inception of the blockchain and crypto concept.

Bitcoin Core is open-source software that serves as a Bitcoin network client. It was created by Satoshi Nakamoto, the pseudonymous creator of Bitcoin, and was first released in 2009. Bitcoin Core is used to send and receive Bitcoin and verify and participate in the Bitcoin network.

Bitcoin Core is a full node that downloads and stores the entire blockchain. This allows Bitcoin Core to verify all transactions on the network and to participate in consensus. However, there is a light version of Bitcoin Core.

If you do not need to download and store the entire blockchain, you can use a light client. Lightweight clients do not download the entire blockchain but only the portions required to verify transactions. Light clients are typically lighter and more efficient than full nodes, but they may require more security.

Bitcoin Core is an essential component of the Bitcoin network. It enables users to send and receive Bitcoin and contributes to network security by participating in consensus. Bitcoin Core is a useful tool for developers because it provides a reference implementation of the Bitcoin protocol.

The goal of Bitcoin Core is to create a decentralized digital currency that is not controlled by any government or financial institution. Bitcoin Core is intended to be safe, efficient, and simple to use. It is a powerful tool for sending and receiving Bitcoin that also helps to secure the Bitcoin network.

Getting Started with Bitcoin Core

Setting up Bitcoin Core is different from the way you set up other crypto wallets. This is because when you install Bitcoin Core into your computer, you automatically have a copy of the entire Bitcoin blockchain on your node. It could be more straightforward, but it’s worth the process. 

However, the Bitcoin Core Client was initially only available for mobile devices recently. This is due to its significant data nature. Installing the entire blockchain on the computer consumes more than 500 GB of data, but the mobile version is only for the wallet. Please follow the guidelines or steps below to set up Bitcoin Core on mobile and desktop;

Setting Up on Desktop

After the last process above, the wallet will be created and available for use immediately.

Setting Up on Mobile

The Bitcoin Core mobile version wallet is called “Bitcoin Wallet”. It is lightweight and relatively straightforward to install and use, unlike the Desktop version. To use the mobile wallet, go to the respective app stores of your mobile device, search for “Bitcoin Wallet”, and install it. After installation, the app will be automatically available for use.

Important: Please ensure you back up your wallet. You can back up your wallet by creating your password and encrypting your wallet in a file. This file will be automatically saved to your device. Duplicate the file into a trusted mobile device or flash drive in case you lose your device.

The Role of Bitcoin Core Maintainers & the Path Forward

Cryptocurrencies & Assets Supported by Bitcoin Core

At the time of writing, Bitcoin Core only supported Bitcoin. You must use a different wallet or client if you want to use other cryptocurrencies or assets. There are several wallets and clients that support various cryptocurrencies and assets.

Bitcoin Core Keys and Security

To secure user funds, Bitcoin Core employs a system of public and private keys. Bitcoin is received using public keys, and it is spent using private keys. Private keys are generated and are never made public.

When you create a Bitcoin Core wallet, you are given a generated private key and a corresponding public key. The public key is basically used to create a Bitcoin address, a string of characters that can be used to send Bitcoin to your wallet.

When you spend Bitcoin, you sign the transaction with your private key. This signature proves that you are the owner of the Bitcoin being spent. The network verifies the signature, and the transaction is added to the blockchain.

It is very important or crucial to keep your private key safe. If your private key is stolen, you will lose access to your Bitcoin. There is no other way to recover a lost or stolen private key. Follow the steps below to view your private keys in Bitcoin Core;

  1. Open Bitcoin Core.
  2. Click on the “Help” menu.
  3. Select “Debug Window”.
  4. Select the “Console” tab.
  5. Type the following command: dumpprivkey <address>
  6. Replace the address above with the public address of your wallet and click “enter”. Bitcoin Core will display the private keys of your wallet address.

Other Bitcoin Core Features

Bitcoin Core Client is not just a Bitcoin Wallet. The application has other unique features that make it special. The following are some of its other features;


A full node is like a diligent guardian, a watchful eye overseeing the entire Bitcoin network. When you run Bitcoin Core as a full node, you become an integral part of the decentralised ecosystem that powers Bitcoin. It’s like becoming a member of a vibrant and borderless digital community.

Bitcoin Core, as a full node, downloads and keeps a complete copy of the blockchain, the public ledger that records all Bitcoin transactions. This means you can see every transaction made on the network since the first block. It’s like having the entire Bitcoin history at your fingertips.

Being a full node means more than just having a complete copy of the blockchain. It also means actively participating in the validation and verification of transactions. When a new transaction is made or broadcasted on the network, your Bitcoin Core node verifies its authenticity by checking if it adheres to the rules of the Bitcoin protocol. It’s like being a guardian angel, ensuring that only legitimate transactions make it into the blockchain.

Command-line Interface

Bitcoin Core offers a command-line interface that puts you in direct control of the software through simple text-based commands. It’s like having a direct conversation with Bitcoin Core, where you can instruct it to perform various tasks and access its functionalities without needing a graphical user interface.

Using the command-line interface, you can perform a wide range of operations. For instance, you can query information about the Bitcoin blockchain, such as checking your account balance or the status of a specific transaction. You can initiate transactions, create new addresses, and even set up multi-signature wallets for added security. It’s like having a versatile toolbox, allowing you to shape your Bitcoin experience according to your needs.

Consensus Protocol

The consensus protocol is an essential part of Bitcoin Core. It means that Bitcoin Core follows a set of rules defined by the Bitcoin protocol. These rules determine how transactions are checked and approved, how new blocks are created, and, ultimately, how everyone in the network agrees on the state of the blockchain. By sticking to these rules, Bitcoin Core ensures the blockchain remains secure and trustworthy.

Mining Support

Mining Support is a crucial aspect of Bitcoin Core that ignites the passion and dedication of its users. It grants them the power to become miners, heroes of the Bitcoin network, who tirelessly work to uncover new blocks and safeguard the entire ecosystem. However, it’s important to note that mining efficiency is a pursuit that demands fine-tuning. Dedicated miners often invest in specialised mining equipment and software tailored to this specific purpose to optimise their capabilities. 

Privacy and Security

Bitcoin Core represents the actual value of Bitcoin and blockchain technology. At its core, Bitcoin Core upholds a fundamental principle that resonates with individuals seeking a sense of liberation from traditional financial institutions. It removes the barriers that have long restricted financial access, for it requires no personal information or the Know Your Customer (KYC) verification process. It allows users to transact without compromising their privacy, ensuring their details remain protected from prying eyes.

Bitcoin Core Usability and Support

Bitcoin Core is the Bitcoin protocol’s reference implementation. The entire blockchain is downloaded and validated by a full-node client. This makes it more secure than other wallets for storing Bitcoin, but it also makes it more difficult to set up and use.

The Bitcoin Core website contains a comprehensive guide on how to download and install and use the client. However, for new users, the process can be complicated and time-consuming. There is also a help section available. This section allows users ask questions and get help from other developers.

Bitcoin Core is a more powerful and secure wallet with more user-friendly features. If you want a simple and easy-to-use wallet, there are other options available. 

Bitcoin Core Reputation and Popularity

Bitcoin Core has steadily gained popularity and established a strong reputation within the cryptocurrency community. It functions as the backbone of the entire Bitcoin network as the reference implementation of the Bitcoin protocol, attracting a dedicated user base and garnering respect from enthusiasts and experts alike.

The popularity of Bitcoin Core has witnessed a consistent rise over the years. As more individuals recognise the potential of Bitcoin and blockchain technology, they turn to Bitcoin Core as a reliable and trusted choice. Its robust features, including the ability to run a full node, manage wallets, and participate in network communication, make it a go-to option for users seeking a comprehensive Bitcoin experience.

The Bitcoin Core wallet has a generally positive reputation. It is a safe and dependable method of storing and managing Bitcoin funds. Users can generate new addresses, send and receive transactions, and manage their private keys using the wallet functionality in Bitcoin Core. 

However, like any widely used software, Bitcoin Core has encountered some controversies and debates within the cryptocurrency community. One notable controversy arose around the block size debate, which centred on whether to increase the block size limit to accommodate more transactions per block. 

Despite these controversies, Bitcoin Core has managed to maintain its reputation as the leading implementation of the Bitcoin protocol. Its open-source nature, continuous development, and dedication to preserving the fundamental principles of Bitcoin have contributed to its enduring popularity. 


In conclusion, Bitcoin Core is an essential and influential software in cryptocurrencies. It represents the true essence of Bitcoin and blockchain technology, empowering individuals with financial freedom and privacy. Its reputation and popularity have grown steadily, with a dedicated user base relying on its robust features and secure wallet functionality.

While the setup process may be more involved than other wallets, the benefits of using Bitcoin Core as a full-node client are significant. The software also strikes a balance between security, simplicity and accessibility. 

Bitcoin Core Pros and Cons

Like most software out there, Bitcoin Core has some of its Pros and Cons. The following table shows some of its strengths and weaknesses;

SecuredSetup is quite difficult
Open SourceSlow to sync with the blockchain
Fully Featured
Supports many hard wallets
Easy to use

Frequently asked questions

Bitcoin Core is open-source software that serves as a Bitcoin network client. It was created by Satoshi Nakamoto, the pseudonymous creator of Bitcoin, and was first released in 2009. Bitcoin Core is used to send and receive Bitcoin and verify and participate in the Bitcoin network.