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Why Satoshi Nakamoto Chose C++ to Program Bitcoin

Bitcoin was launched in 2009 as a digital currency and a decentralized peer to peer platform, giving control to everyone over their funds. Satoshi Nakamoto introduced this platform, and it has since then grown in use, attaining a market capitalization of over 353 billion USD. As an investment prospect, bitcoin has a volatile nature and has made fortunes for people ready to take risks. Some financial experts even argue that one bitcoin’s price could go above 400 thousand USD in the next few years, making the asset even better than gold as a store of value.

The technology used in Bitcoin is also one of a kind. Nakamoto chose to use C++ algorithms to design this financial technology, but why?

Memory Management

Resource management of a program is one of the most vital things that developers consider when creating software. For software to achieve full functionality and remain highly effective in providing services, they should have suitable resource management protocols instituted.

In blockchain development, things aren’t at all different. Since blockchains provide services to millions of people and institutions, they should be highly scalable for service delivery efficiency. Recent Statista research shows that the bitcoin network had over 350 thousand daily transactions in the third quarter of 2020. 

Some of these transactions involve humongous amounts of digital money and, as such, require long time computations. Nakamoto’s blockchain creation’s basic idea was a network to ease financial interactions and speed up processes. The best coding language for a system with those attributes in C++. 

C++ algorithms can perform at the best level by maximizing resource use and giving the developer control over the CPU and memory use. This algorithm also allows the blockchain to accept or reject blocks, thus eradicating any forks in the blockchain. Using C++, therefore, helps the platform interact with different endpoints at fast rates. 

Code Isolation

The development of software, including blockchain, should provide adequate space for deterministic operations. In the blockchain case, deterministic functions, when properly instituted, will ensure transactions and internal processes like smart contracts serve the same way even when in different machines. 

However, developers and coding experts’ only way to perfectly achieve deterministic operations is to apply code isolations. What should developers isolate? Since the functions running is deterministic, developers should find a way of isolating the non-deterministic elements from the coding of smart contracts and transaction functions. 

C++ leverages the namespace functionalities, which are transferable to other programs. These namespaces help in avoiding collisions in the coding functions. There is also the class feature that helps separate and set boundaries between API.

Reliability and Maturity of C++

Another vital feature that contributed to Satoshi Nakamoto’s choice of C++ as his primary bitcoin creation language is the maturity of C++. C++ often receives updates to ensure that it remains highly reliable and mature. 

Moreover, C++ has debugging and analytics tools of different kinds, all of which function to bolster its performance. These tools also make it easy to identify any issue when programming software. The reliability and maturity of C++ make it the most reliable language for the development of Bitcoin. C++ also ensures that the software created has topmost security. 


Threads in programming involve a set of instructions, activities, or tasks that can smoothly function or work together or can be simultaneously executed. Two types of functions should be integrative in any software, that is, parallelizing and non-parallelizing tasks. 

A bitcoin blockchain project could never work if the parallelizing and non-parallelizing tasks could not function together. However, integrating these tasks is one of the most complicated things in programming. Most programming languages currently focus on just one of the two tasks, either parallel or non-parallel. 

C++, however, has one of the most admirable threading abilities, giving the developer the option of using both parallel and non-parallel functions together. C++ can efficiently conduct multi-threading, allowing all threads to communicate in an integrable and dependable way. 

Moreover, C++ created threads can function at the most optimal point, thus making the whole blockchain functioning optimally. When considering the optimal functionality of C++, it’s safe to say that another reason that made Satoshi Nakamoto choose C++ is the fact that it can give way for easy threading of parallel and non-parallel functions. 

Move Semantics

Move semantic is a function allowing developers to move content between objects instead of just copying the content. Using move semantics, developers and users get different data copies on a need basis, thus increasing performance and reducing redundancy.  


The C++ language is probably the most commonly used programming language in the program developing world. Developing blockchains also involves coding, and some blockchain like the bitcoin network use C++ as their programming language. 

Satoshi Nakamoto, bitcoin’s creator, chose this language because of its security and ability to manage transactions and smart contract operations resources. Additionally, C++ allows developers to integrate both parallelizing and non-parallelizing tasks in a faultless manner. 

The language also receives regular updates, providing analytics and debugging tools to enable automatic detection of issues. Looking at the best benefits of C++ in blockchain enables everyone to understand why Satoshi Nakamoto chose this language in bitcoin blockchain creation.  

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Nakamoto’s blockchain creation produced one of the most prolific financial technology inventions of our time, fostering transparency, decentralization, and permanence of transactions and data. The currency centered on the blockchain also remains the top most used, dependable, lucrative digital currency and investment prospect.

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