{"id":15603,"date":"2025-10-14T23:46:41","date_gmt":"2025-10-14T17:46:41","guid":{"rendered":"https:\/\/blog.webisoft.com\/?p=15603"},"modified":"2025-10-22T22:06:29","modified_gmt":"2025-10-22T16:06:29","slug":"how-to-create-blockchain-in-python","status":"publish","type":"post","link":"https:\/\/blog.webisoft.com\/how-to-create-blockchain-in-python\/","title":{"rendered":"How to Create Blockchain in Python: Step-by-Step Guide"},"content":{"rendered":"\r\n
Building a blockchain from the beginning can seem difficult, but Python makes it simple. Python\u2019s easy-to-read code and useful tools help anyone create a basic blockchain fast, even if they don\u2019t have a lot of technical knowledge.<\/p>\r\n\r\n\r\n\r\n
According to a 2023 survey by the Python Software Foundation and JetBrains, Python remains one of the most popular languages, widely used for blockchain development and other fields.<\/p>\r\n\r\n\r\n\r\n
This guide will show you how to create blockchain in Python, step by step. Even if you\u2019re new, you\u2019ll learn the basics and build your own blockchain. Let\u2019s start!<\/p>\r\n\r\n\r\n\r\n
What Is a Blockchain and How Does It Work in Python?<\/strong><\/h2>\r\n\r\n\r\n\r\n
A blockchain is a special kind of database that stores information in blocks, and these blocks are linked (or chained<\/em>) together in order. It’s mostly known for powering cryptocurrencies like Bitcoin, but it can be used for many things like tracking products, contracts, or digital records.<\/p>\r\n\r\n\r\n\r\n
Key features:<\/strong><\/p>\r\n\r\n\r\n\r\n
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Decentralized: No single owner or control.<\/li>\r\n\r\n\r\n\r\n
Secure: Once data is added, it\u2019s very hard to change.<\/li>\r\n\r\n\r\n\r\n
Transparent: Everyone can see the chain and verify it.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
But how does it actually work in Python?<\/strong><\/p>\r\n\r\n\r\n\r\n
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First, transactions are requested (like sending coins).<\/li>\r\n\r\n\r\n\r\n
Then, the transaction is grouped with others into a block.<\/li>\r\n\r\n\r\n\r\n
After that, the block is sent to a network of computers (called nodes).<\/li>\r\n\r\n\r\n\r\n
Next, the nodes verify the block using algorithms.<\/li>\r\n\r\n\r\n\r\n
Once verified, the block is added to the chain.<\/li>\r\n\r\n\r\n\r\n
Finally, the change is now visible to everyone in the network.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Why Python Is Ideal for Blockchain Development<\/strong><\/h2>\r\n\r\n\r\n\r\n
Python is a great choice for blockchain in python because it’s simple, flexible, and has many built-in tools. Its clean syntax makes it easier for beginners and professionals to write blockchain code quickly. So let\u2019s explore some amazing advantages!\u00a0<\/p>\r\n\r\n\r\n\r\n
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Easy to Learn and Use:<\/strong> Python\u2019s simple syntax makes writing and understanding blockchain code much easier\u2014especially for beginners and rapid prototyping.<\/li>\r\n\r\n\r\n\r\n
Fast Development Speed:<\/strong> With Python, you can build blockchain applications quickly because of its clean, readable code and many ready-to-use libraries.<\/li>\r\n\r\n\r\n\r\n
Strong Libraries and Frameworks:<\/strong> Python has powerful libraries (like hashlib for hashing, flask for building web APIs, and others) that simplify blockchain tasks such as cryptography, networking, and data handling.<\/li>\r\n\r\n\r\n\r\n
Good Community Support:<\/strong> Python has a large, active community. You can easily find tutorials, guides, and open-source blockchain projects to learn from or use.<\/li>\r\n\r\n\r\n\r\n
Cross-Platform:<\/strong> Python runs on almost every platform (Windows, Linux, macOS), making it flexible for blockchain development in different environments.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Tools and Libraries You Need to Build a Blockchain in Python<\/strong><\/h2>\r\n\r\n\r\n\r\n
Before you start developing blockchain in Python<\/strong>, you need the right tools. In this part, you\u2019ll find out which libraries and setups will make your work faster and easier.<\/p>\r\n\r\n\r\n\r\n
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Tool \/ Library<\/strong><\/td>\r\n
Purpose<\/strong><\/td>\r\n
Description<\/strong><\/td>\r\n
Example Use Case<\/strong><\/td>\r\n<\/tr>\r\n
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hashlib<\/em><\/strong><\/td>\r\n
Hashing<\/td>\r\n
Secure hashing functions like SHA-256<\/td>\r\n
Creating block hashes to secure block data<\/td>\r\n<\/tr>\r\n
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Flask<\/em><\/strong><\/td>\r\n
Web framework<\/td>\r\n
Lightweight API building<\/td>\r\n
Building a REST API for blockchain node communication<\/td>\r\n<\/tr>\r\n
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requests<\/em><\/strong><\/td>\r\n
HTTP requests<\/td>\r\n
Sending HTTP requests<\/td>\r\n
Sending transactions between blockchain nodes<\/td>\r\n<\/tr>\r\n
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json<\/em><\/strong><\/td>\r\n
Data serialization<\/td>\r\n
Encoding\/decoding JSON data<\/td>\r\n
Formatting blocks and transactions for network transfer<\/td>\r\n<\/tr>\r\n
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ecdsa<\/em><\/strong><\/td>\r\n
Cryptography (digital signatures)<\/td>\r\n
Creating\/verifying signatures<\/td>\r\n
Signing transactions to verify sender identity<\/td>\r\n<\/tr>\r\n
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pycryptodome<\/em><\/strong><\/td>\r\n
Cryptography<\/td>\r\n
Encryption and hashing algorithms<\/td>\r\n
Encrypting sensitive data and hashing transactions<\/td>\r\n<\/tr>\r\n
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time<\/em><\/strong><\/td>\r\n
Timestamping<\/td>\r\n
Adding timestamps<\/td>\r\n
Timestamping blocks when they are created<\/td>\r\n<\/tr>\r\n
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socket<\/em><\/strong><\/td>\r\n
Networking<\/td>\r\n
Node communication<\/td>\r\n
Enabling peer-to-peer messaging between blockchain nodes<\/td>\r\n<\/tr>\r\n
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threading<\/em><\/strong><\/td>\r\n
Concurrency<\/td>\r\n
Running parallel processes<\/td>\r\n
Listening to multiple node requests at the same time<\/td>\r\n<\/tr>\r\n
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SQLAlchemy<\/em><\/strong><\/td>\r\n
Database ORM<\/td>\r\n
Storing blockchain data persistently<\/td>\r\n
Saving blocks and transactions in a database<\/td>\r\n<\/tr>\r\n
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pytest<\/em><\/strong><\/td>\r\n
Testing<\/td>\r\n
Automated testing<\/td>\r\n
Testing blockchain functions to ensure correctness<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n
Key Concepts to Understand Before You Code a Blockchain in Python<\/strong><\/h2>\r\n\r\n\r\n
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<\/figure><\/div>\r\n\r\n\r\n
Before learning how to create blockchain in Python, you should understand key ideas like blocks, hashing, proof of work, and distributed networks. These concepts are the foundation for building a working blockchain.<\/p>\r\n\r\n\r\n\r\n
Data Structures (Blocks and Chains)<\/strong><\/h3>\r\n\r\n\r\n\r\n
You need to understand how to design a block as a data structure that holds important information like index, timestamp, data, previous hash, and hash. Also, how to connect these blocks in a list or chain format, where each block links to the previous one via the previous hash.<\/p>\r\n\r\n\r\n\r\n
Hash Functions and Hashing<\/strong><\/h3>\r\n\r\n\r\n\r\n
Hashing is fundamental. You must know how to use hash functions (like SHA-256) to generate a unique hash for a block\u2019s data. Hashing ensures data integrity because even a small change in input data produces a very different hash. Python\u2019s hashlib module helps you implement this.<\/p>\r\n\r\n\r\n\r\n
Proof of Work (Mining Algorithm)<\/strong><\/h3>\r\n\r\n\r\n\r\n
Learn how to implement a simple proof of work mechanism that requires finding a nonce value to generate a hash that meets a difficulty condition (like leading zeros). This prevents easy block creation and secures the chain.<\/p>\r\n\r\n\r\n\r\n
Block Validation and Chain Integrity<\/strong><\/h3>\r\n\r\n\r\n\r\n
Understand how to validate a block by checking if the previous hash recorded matches the actual hash of the previous block, and if the block\u2019s hash is valid. This helps maintain the integrity of the entire chain.<\/p>\r\n\r\n\r\n\r\n
Adding New Blocks<\/strong><\/h3>\r\n\r\n\r\n\r\n
Know how to add new blocks to the chain by creating a block, computing its hash (with proof of work), and linking it properly by referencing the previous block\u2019s hash.<\/p>\r\n\r\n\r\n\r\n
Timestamping<\/strong><\/h3>\r\n\r\n\r\n\r\n
Each block should store the time it was created. You should know how to get the current time in Python and store it in the block to track when data was added.<\/p>\r\n\r\n\r\n\r\n
Data Immutability Concept<\/strong><\/h3>\r\n\r\n\r\n\r\n
Be clear about how once a block is added, its data should not be changed because altering it would change the hash and break the chain. This concept influences how you manage block data and chain updates.<\/p>\r\n\r\n\r\n\r\n
Step-by-Step Guide: How to Create a Blockchain in Python<\/strong><\/h2>\r\n\r\n\r\n
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<\/figure><\/div>\r\n\r\n\r\n
This guide will show you how to create blockchain in python<\/strong> step by step. You\u2019ll learn how to build blocks, link them, and add basic features like proof of work and web access.<\/p>\r\n\r\n\r\n\r\n
Step 1: Set Up a Place to Store Blocks and Create the First Block<\/strong><\/h3>\r\n\r\n\r\n\r\n
We need a container to hold all the blocks in the blockchain. This container is a class called Blockchain. When we start the blockchain, it should have the very first block (called the “genesis block”) so the chain begins properly.<\/p>\r\n\r\n\r\n\r\n
Code:<\/strong><\/p>\r\n\r\n\r\n
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<\/figure><\/div>\r\n\r\n\r\n
Explanation:<\/strong><\/p>\r\n\r\n\r\n\r\n
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self.chain stores all blocks in order.<\/li>\r\n\r\n\r\n\r\n
create_block builds a block with 4 pieces of info: index, timestamp, proof, and previous_hash.<\/li>\r\n\r\n\r\n\r\n
The first block is special: proof is 1, and previous_hash is ‘0’ because no blocks came before it.<\/li>\r\n\r\n\r\n\r\n
When the Blockchain object starts, it automatically creates this first block.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Step 2: Get the Last Block in the Chain<\/strong><\/h3>\r\n\r\n\r\n\r\n
When we add a new block, it must point back to the last block. So, we need a way to quickly get the most recent block.<\/p>\r\n\r\n\r\n\r\n
Code:<\/strong><\/p>\r\n\r\n\r\n
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<\/figure><\/div>\r\n\r\n\r\n
Explanation:<\/strong><\/p>\r\n\r\n\r\n\r\n
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self.chain[-1] accesses the last block in the list.<\/li>\r\n\r\n\r\n\r\n
We will use this block\u2019s proof and hash to link the next block properly.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Step 3: Create a Puzzle (Proof of Work) to Secure Block Addition<\/strong><\/h3>\r\n\r\n\r\n\r\n
Without any rule, anyone could add fake blocks easily. We add a puzzle<\/strong> that takes time to solve \u2014 called Proof of Work. Only after solving this puzzle can we add a block.<\/p>\r\n\r\n\r\n\r\n
Code:<\/strong><\/p>\r\n\r\n\r\n
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<\/figure><\/div>\r\n\r\n\r\n
Explanation:<\/strong><\/p>\r\n\r\n\r\n\r\n
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This code tries numbers (new_proof) one by one.<\/li>\r\n\r\n\r\n\r\n
It creates a hash of the difference between squares of new_proof and previous_proof.<\/li>\r\n\r\n\r\n\r\n
The goal is to find a number so that the hash starts with <\/strong>‘0000’<\/strong>, which is hard to get and takes time.<\/li>\r\n\r\n\r\n\r\n
Once found, this number is returned as proof, securing the block.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Step 4: Calculate the Hash of a Block to Link Blocks<\/strong><\/h3>\r\n\r\n\r\n\r\n
Each block needs a unique identifier called a hash. This hash is stored in the next block to maintain the chain\u2019s security and order.<\/p>\r\n\r\n\r\n\r\n
Code:\u00a0<\/strong><\/p>\r\n\r\n\r\n
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<\/figure><\/div>\r\n\r\n\r\n
Explanation:<\/strong><\/p>\r\n\r\n\r\n\r\n
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Convert the block\u2019s contents to a string, then to bytes because hashing works on bytes.<\/li>\r\n\r\n\r\n\r\n
Use SHA-256 to generate a fixed-length unique hash.<\/li>\r\n\r\n\r\n\r\n
Even a tiny change in the block changes the hash completely, making tampering easy to detect.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Step 5: Check if the Entire Blockchain is Valid<\/strong><\/h3>\r\n\r\n\r\n\r\n
We want to verify that none of the blocks in the chain have been changed. We do this by checking that each block\u2019s previous_hash matches the real hash of the previous block and the proof of work is correct.<\/p>\r\n\r\n\r\n\r\n
Code:<\/strong><\/p>\r\n\r\n\r\n
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<\/figure><\/div>\r\n\r\n
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Explanation:<\/strong><\/p>\r\n\r\n\r\n\r\n
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Loop through the chain starting at block 2.<\/li>\r\n\r\n\r\n\r\n
For each block, check if the stored previous_hash matches the actual hash of the previous block.<\/li>\r\n\r\n\r\n\r\n
Also, check the proof of work is valid by recalculating the hash puzzle.<\/li>\r\n\r\n\r\n\r\n
If all checks pass, the chain is valid.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Step 6: Build a Simple Website to Mine Blocks and View the Chain<\/strong><\/h3>\r\n\r\n\r\n\r\n
To interact with the blockchain easily, we create a web server with two pages:<\/p>\r\n\r\n\r\n\r\n
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One to mine a new block (run the proof of work and add the block)<\/li>\r\n\r\n\r\n\r\n
One to show the full blockchain<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Code:<\/strong><\/p>\r\n\r\n\r\n
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<\/figure><\/div>\r\n\r\n
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<\/figure><\/div>\r\n\r\n\r\n
Explanation:<\/strong><\/p>\r\n\r\n\r\n\r\n
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Flask web server handles requests.<\/li>\r\n\r\n\r\n\r\n
\/mine_block endpoint runs the proof of work, adds a block, and returns its details.<\/li>\r\n\r\n\r\n\r\n
\/get_chain endpoint returns the whole blockchain in JSON format.<\/li>\r\n\r\n\r\n\r\n
Run the app, open the browser to http:\/\/localhost:5000\/mine_block to mine blocks, and \/get_chain to see the chain.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Summary:<\/strong><\/h3>\r\n\r\n\r\n\r\n
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First, you create a class to store and manage blocks.<\/li>\r\n\r\n\r\n\r\n
Then, add the very first block (genesis).<\/li>\r\n\r\n\r\n\r\n
Get the last block before adding new ones.<\/li>\r\n\r\n\r\n\r\n
Add a puzzle (proof of work) to secure adding blocks.<\/li>\r\n\r\n\r\n\r\n
Hash each block to create unique links.<\/li>\r\n\r\n\r\n\r\n
Validate the whole chain to detect tampering.<\/li>\r\n\r\n\r\n\r\n
Use a simple web server so anyone can interact with your blockchain.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Common Mistakes to Avoid When Creating a Blockchain in Python<\/strong><\/h2>\r\n\r\n\r\n
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<\/figure><\/div>\r\n\r\n\r\n
While learning how to build blockchain in python<\/strong>, people often make mistakes like skipping security checks or not testing properly. Knowing these early will help you avoid problems later.<\/p>\r\n\r\n\r\n\r\n
Not Initializing the Chain Properly<\/strong><\/h3>\r\n\r\n\r\n\r\n
If you don\u2019t create the first block (genesis block) correctly, your chain will have no starting point. This makes adding new blocks impossible or invalid.<\/p>\r\n\r\n\r\n\r\n
Avoid: Forgetting to create the first block in the constructor or starting with an empty chain.<\/p>\r\n\r\n\r\n\r\n
Ignoring the Proof of Work Puzzle<\/strong><\/h3>\r\n\r\n\r\n\r\n
Skipping the proof of work means anyone can add blocks instantly, which breaks blockchain security. Without this, your chain can be easily tampered with.<\/p>\r\n\r\n\r\n\r\n
Avoid: Not implementing a computational puzzle or validation to secure new blocks.<\/p>\r\n\r\n\r\n\r\n
Each block must store the hash of the previous block. If this link is broken or wrong, the chain won\u2019t be valid and anyone can change data undetected.<\/p>\r\n\r\n\r\n\r\n
Avoid: Forgetting to store or check the previous block\u2019s hash when creating or validating blocks.<\/p>\r\n\r\n\r\n\r\n
Using Mutable Data Structures in Blocks<\/strong><\/h3>\r\n\r\n\r\n\r\n
Blocks should be treated as immutable once created. If you accidentally modify block data later, it changes the hash and breaks the chain.<\/p>\r\n\r\n\r\n\r\n
Avoid: Changing block contents after adding them to the chain.<\/p>\r\n\r\n\r\n\r\n
Skipping Hash Validation When Verifying Chain<\/strong><\/h3>\r\n\r\n\r\n\r\n
Only checking block indexes or timestamps isn\u2019t enough. You must check both the hash links and proof of work for each block to ensure chain integrity.<\/p>\r\n\r\n\r\n\r\n
Avoid: Validating chain with incomplete checks, risking acceptance of tampered blocks.<\/p>\r\n\r\n\r\n\r\n
Not Handling Time Properly<\/strong><\/h3>\r\n\r\n\r\n\r\n
Using local system time without standard formatting or time zones can cause inconsistent timestamps.<\/p>\r\n\r\n\r\n\r\n
Avoid: Ignoring timestamp consistency, which can affect ordering and validation.<\/p>\r\n\r\n\r\n\r\n
Not Using Secure Hash Functions<\/strong><\/h3>\r\n\r\n\r\n\r\n
Choosing weak or custom hash functions instead of proven ones like SHA-256 reduces security.<\/p>\r\n\r\n\r\n\r\n
Avoid: Using non-standard hashing or simple checksums for block hashes.<\/p>\r\n\r\n\r\n\r\n
Running Heavy Computation on the Main Thread (in Web Apps)<\/strong><\/h3>\r\n\r\n\r\n\r\n
Running proof of work or other heavy calculations directly in the web request can freeze the server or slow responses.<\/p>\r\n\r\n\r\n\r\n
Avoid: Blocking web requests with slow mining\u2014use background tasks or queues in real apps.<\/p>\r\n\r\n\r\n\r\n
Next Steps: Real-World Use Cases and Scaling Your Python Blockchain<\/strong><\/h2>\r\n\r\n\r\n\r\n
After learning how to create blockchain in Python and building a basic one, the next step is to use it in real-life projects and scale it. From tracking products to managing digital records, there are many ways to use your Python-based blockchain effectively.<\/p>\r\n\r\n\r\n\r\n
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Real-World Use Case<\/strong><\/td>\r\n
Description<\/strong><\/td>\r\n
How to Scale Your Python Blockchain<\/strong><\/td>\r\n<\/tr>\r\n
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Cryptocurrency<\/em><\/strong><\/td>\r\n
Digital money like Bitcoin uses blockchain for secure transactions.<\/td>\r\n
Optimize proof of work, add peer-to-peer network to sync chains.<\/td>\r\n<\/tr>\r\n
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Supply Chain Tracking<\/em><\/strong><\/td>\r\n
Track products from origin to delivery with transparency.<\/td>\r\n
Add data fields for product info, build APIs for external access.<\/td>\r\n<\/tr>\r\n
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Healthcare Records<\/em><\/strong><\/td>\r\n
Secure patient data shared only with permission.<\/td>\r\n
Implement encryption, permission controls, and secure APIs.<\/td>\r\n<\/tr>\r\n
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Voting Systems<\/em><\/strong><\/td>\r\n
Transparent and tamper-proof voting results.<\/td>\r\n
Use identity verification and faster consensus algorithms.<\/td>\r\n<\/tr>\r\n
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Digital Identity<\/em><\/strong><\/td>\r\n
Manage personal identity securely online.<\/td>\r\n
Integrate decentralized ID standards and privacy features.<\/td>\r\n<\/tr>\r\n
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Smart Contracts<\/em><\/strong><\/td>\r\n
Automated agreements executed on the blockchain.<\/td>\r\n
Add a virtual machine or interpreter to run contract code.<\/td>\r\n<\/tr>\r\n
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Real Estate Transactions<\/em><\/strong><\/td>\r\n
Record property ownership and sales transparently.<\/td>\r\n
Develop secure document storage and multi-signature support.<\/td>\r\n<\/tr>\r\n
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Data Provenance<\/em><\/strong><\/td>\r\n
Track origin and changes of data in industries.<\/td>\r\n
Use timestamping and immutable logs for audit trails.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n
![\"Key](\"https:\/\/blog.webisoft.com\/wp-content\/uploads\/2025\/05\/Key-Concepts-to-Understand-Before-You-Code-a-Blockchain-in-Python.jpg\")
<\/figure><\/div>\r\n\r\n\r\n![\"Step-by-Step](\"https:\/\/blog.webisoft.com\/wp-content\/uploads\/2025\/05\/Step-by-Step-Guide-How-to-Create-a-Blockchain-in-Python.jpg\")
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![\"\"](\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXeQo9toKpOBEmCrWtAelAFv5sJG3Tz634j802rjIGVsBiQlj6cfWVQtXGcqnwTsq8K9fkHiQGaXNIFh2mdDk7cHWHrEQrEkzqnJipDKcS5w8axxDVKMbefcgZW1cnCsPuAOk_4g9A?key=VMQ5vPXs71Y_cfnX__U12Q\")
![\"\"](\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXfK2JyjXNFzMe2bnXPSp-VvhzTCXRqV5fUsJScX0hzxOEnFsjt29vaME_ckQkiAl-7jcl3llOdVeNlm2bORruDHgaOPslrLrBDLTSbxg-WKiigPdoPejRzpoSTPBd0l5P2xBhO-?key=VMQ5vPXs71Y_cfnX__U12Q\")
![\"\"](\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXdE7iXw6nO6raObxGTkyj9ycRjbc4s3XlUmvcXD-wH4lrwU9f22IzLWspgJE0PUDq64qm5hfVGwqz_8A2RLbdNFM313UZwEWRCUg8y9VgUhcO5_1LJU0NGrbLmKeF-DfH3Cr1Pc?key=VMQ5vPXs71Y_cfnX__U12Q\")
![\"\"](\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXefUkHoT6LwWMbdp_N4_PMn-tEXFl0PiJdb_8UH8RihjiO1o_bWsOMGnmXpUf6Syy-xKDyEh2Mx8xMxX2IkdAae_BwDBCcrZuANsjCl9mWXNuHdMRMDjSeLDlFHIKX84qQ6az-yVA?key=VMQ5vPXs71Y_cfnX__U12Q\")
![\"\"](\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXdlWg9Namj3hfAWgjniE3jh2rED4xZvYv3s2CoqqffEvnugYooaoa5qH3J4J_XsCImvmPhEgGrB11M4huZ25G2iYU8ncndg0v9C2MwRmtcSvkbcb3oz1Ze2EYLo6Qd3-RKIhfiG0g?key=VMQ5vPXs71Y_cfnX__U12Q\")
![\"\"](\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXenrgvKWblggll_X2xJL-1u-4oMEdHNZ6rt3dMPzWuYFYT9CiNzVMDVx5m7seDkDZtPu8yFUb1U5-OBZ9T7jeZEYoo74AhdUpdZo8N8bWMcIqa3g-H2UoTtK0nfgKT04-0CuiGRJw?key=VMQ5vPXs71Y_cfnX__U12Q\")
![\"Common](\"https:\/\/blog.webisoft.com\/wp-content\/uploads\/2025\/05\/Common-Mistakes-to-Avoid-When-Creating-a-Blockchain-in-Python.jpg\")
<\/figure><\/div>\r\n\r\n\r\n