cryptoseries

📚 When entering the crypto world, many users look for a simple way to store assets and interact with blockchain applications.
One popular option is Binance Wallet.
Binance Wallet is a crypto wallet developed by Binance.
It is designed to help users store, manage, and use cryptocurrencies directly within the Binance ecosystem.
Unlike traditional wallets that require manual setup, Binance Wallet is often integrated into the Binance platform, making it easy for beginners to start quickly.
It can also support Web3 features, allowing users to interact with decentralized applications.
Here are the key ideas behind Binance Wallet.
1️⃣ Integrated with Binance
The wallet is connected to your Binance account, making it easy to manage assets in one place.
2️⃣ Supports multiple blockchains
Users can store and interact with assets across different networks.
3️⃣ Easy for beginners
The setup process is simple, especially for users already using Binance.
4️⃣ Access to Web3 features
Users can connect to decentralized apps and explore the blockchain ecosystem.
A simple example can help explain this.
Imagine you are using Binance to buy cryptocurrency.
Instead of transferring your assets to another wallet, you can store and manage them directly within Binance Wallet.
If you want to explore a decentralized application, you can connect your wallet without needing to install additional tools.
This makes the experience smoother, especially for new users.
Binance Wallet is important because it lowers the barrier to entry.
It combines ease of use with access to both centralized and decentralized features.
This helps beginners move from basic crypto usage to more advanced Web3 activities.
📌 In the next article, we’ll explore:
What a hardware wallet is and why it is considered one of the safest ways to store crypto.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 When you start using crypto, you need a wallet to interact with blockchain applications.
One of the most popular wallets today is MetaMask.
MetaMask is a crypto wallet that allows users to store assets and connect to decentralized applications.
It is widely used in the crypto world, especially for interacting with the Ethereum ecosystem.
MetaMask can be installed as a browser extension or a mobile app.
It acts as a bridge between you and the blockchain.
With MetaMask, you can send and receive crypto, connect to websites, and use decentralized apps directly from your device.
Here are the key ideas behind MetaMask.
1️⃣ A crypto wallet
MetaMask stores your private keys and allows you to manage your cryptocurrency.
2️⃣ Connects to decentralized applications
You can use MetaMask to log in and interact with many blockchain-based apps.
3️⃣ Supports multiple networks
Besides Ethereum, MetaMask can connect to other compatible blockchains.
4️⃣ Easy to use
The interface is simple, making it suitable for beginners entering the crypto space.
A simple example can help explain this.
Imagine you want to use a decentralized exchange to swap tokens.
Instead of creating an account with email and password, you click “Connect Wallet”.
MetaMask pops up and asks for your approval.
Once you confirm, the app connects to your wallet and allows you to trade directly.
MetaMask works like a login tool for the decentralized web.
It replaces traditional accounts and gives you full control over your assets.
Because of its simplicity and wide support, MetaMask is often the first wallet that beginners use.
📌 In the next article, we’ll explore:
What Trust Wallet is and how it differs from MetaMask.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 When using cryptocurrency, everything happens on the blockchain.
Every transaction, wallet balance, and block is recorded publicly.
But the blockchain itself is not easy to read for normal users.
This is why blockchain explorers are important.
A blockchain explorer is a tool that allows you to view and search data on a blockchain.
It works like a search engine, but instead of searching websites, it searches blockchain data.
With an explorer, you can track transactions, check wallet balances, and see what is happening on the network in real time.
Here are the key ideas behind blockchain explorers.
1️⃣ Search any transaction
You can enter a transaction hash to see its status, confirmations, and details.
2️⃣ View wallet activity
Anyone can check a wallet address to see its balance and transaction history.
3️⃣ Explore blocks
You can see information about blocks, such as when they were created and how many transactions they contain.
4️⃣ Everything is transparent
Blockchain data is public, and explorers make it easy for anyone to verify it.
A simple example can help explain this.
Imagine sending a package through a delivery service.
After sending it, you receive a tracking code.
You can use that code to check where the package is and whether it has arrived.
A blockchain explorer works the same way.
For example, if you send crypto on Ethereum, you can paste your transaction hash into a tool like Etherscan.
The explorer will show you whether the transaction is pending, confirmed, or failed.
You can also see details like fees, sender, and receiver.
Blockchain explorers are important because they give users full transparency.
Instead of trusting a bank or company, you can verify everything yourself.
This is one of the key differences between crypto and traditional finance.
📌 In the next article, we’ll explore:
How MetaMask works and how you can use it to interact with blockchain applications.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 Receiving cryptocurrency is one of the most basic actions when using a crypto wallet.
Just like sending crypto, the process is simple once you understand how it works.
All you need is your public address.
Step 1: Open your crypto wallet
First, open the wallet you want to receive funds in.
Most wallets have a Receive button that allows you to generate your receiving address.
Step 2: Copy your public address
When you click Receive, your wallet will display your public address.
This address is where people can send cryptocurrency to you.
It usually appears as a long string of letters and numbers.
Example:
This is address: bc1p3a8n824de0vf6suhlskefe54sgt6ma9tjqpgr7vxdvvle9q3v0fsgydagz
Most wallets also show a QR code that represents the same address.
This allows someone to scan the code instead of typing the address manually.
Step 3: Share the address with the sender
Next, send your public address to the person who will transfer crypto to you.
You can share it through:
Message
Email
QR code
Since it is a public address, it is safe to share with others.
Step 4: Wait for the transaction to be confirmed
After the sender transfers the cryptocurrency, the transaction will be processed by the blockchain network.
Once the transaction receives enough confirmations, the funds will appear in your wallet.
Depending on the network, this may take anywhere from a few seconds to several minutes.
Important things to remember
🔹 Always use the correct network
🔹 Make sure the address matches the cryptocurrency you want to receive
🔹 Wait for blockchain confirmations
Sending funds to the wrong address or wrong network may cause the funds to be lost.
Simple way to understand it
Receiving crypto is similar to receiving an email.
You simply give someone your email address, and they can send something to you.
In crypto, your public address works the same way.
Anyone can send funds to that address, but only you can access them through your wallet.
📌 In the next article, we’ll explore:
What is a transaction hash?
Follow the Crypto 101 series as we continue building the foundation of crypto knowledge. 🚀
#CryptoSeries

📚 After creating a crypto wallet, one of the most important things to learn is how to send cryptocurrency to someone else.
Sending crypto is actually quite simple once you understand the basic steps.
In most wallets, the process only takes a few seconds.
Here is how it works.
Step 1: Get the receiver’s public address
To send cryptocurrency, you first need the public address of the person you want to send funds to.
This address acts as the destination for the transaction.
It usually looks like a long string of letters and numbers.
Example:
0x8f742ecd5a4b5125ddf4b181fc808d163189789b
Many people share their address as a QR code so it can be scanned easily.
Step 2: Open your wallet and choose “Send”
Inside your crypto wallet, you will usually see a Send button.
Click it to start creating a new transaction.
Step 3: Enter the receiver’s address
Paste the receiver’s public address into the address field.
⚠️ Always double-check the address before sending.
Crypto transactions are irreversible, meaning they cannot be undone once confirmed.
Step 4: Enter the amount to send
Next, enter the amount of cryptocurrency you want to send.
For example:
0.01 BTC0.5 ETH100 USDT
Your wallet will usually show the network fee before confirming the transaction.
Step 5: Confirm the transaction
Finally, review the details and confirm the transaction.
Once confirmed, the transaction will be broadcast to the blockchain network.
After the network verifies it, the funds will arrive in the receiver’s wallet.
Important tips when sending crypto
🔹 Always double-check the address
🔹 Make sure you are sending on the correct network
🔹 Be aware of network fees
Mistakes in crypto transactions are usually permanent, so it is important to be careful.
Simple way to think about it
Sending crypto is similar to sending an email.
The public address is like the email addressThe amount is like the message contentThe blockchain delivers the message
Once sent, it travels through the network until it reaches the receiver.
📌 In the next article, we’ll explore:
How to receive cryptocurrency.
Follow the Crypto 101 series as we continue building the foundation of crypto knowledge. 🚀
#CryptoSeries

📚 CRYPTO 101 — ARTICLE #62: Ví cứng là gì
When using cryptocurrency, security is one of the most important concerns.
Online wallets are convenient, but they are always connected to the internet.
This creates a risk of hacking or malware.
To solve this problem, many users choose to use a hardware wallet.
A hardware wallet, also known as a cold wallet, is a physical device used to store your private keys offline.
Because it is not connected to the internet, it is much safer from online attacks.
Even when you connect it to send transactions, your private keys never leave the device.
Here are the key ideas behind hardware wallets.
1️⃣ Stores private keys offline
Your private keys are kept inside the device and are not exposed to the internet.
2️⃣ High level of security
Because it is offline, it is much harder for hackers to access your funds.
3️⃣ Requires physical access
To use the wallet, you usually need the device and a PIN code.
4️⃣ Used for long-term storage
Many users store large amounts of crypto in hardware wallets for better protection.
A simple example can help explain this.
Imagine storing money in two different places.
One is a digital account that you can access anytime online.
The other is a physical safe stored at home.
The safe is harder to access, but it is also much more secure.
A hardware wallet works like that safe.
It keeps your crypto protected by staying offline.
Hardware wallets are important because they provide one of the safest ways to store cryptocurrency.
For users holding large amounts of crypto, security becomes a top priority.
📌 In the next article, we’ll explore:
What the Ledger Nano X is and how it works as a hardware wallet.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 CRYPTO 101 — ARTICLE #58: Transaction Hash là gì
When you send or receive cryptocurrency, every transaction is recorded on the blockchain.
But how do you track a specific transaction among thousands or even millions of others?
This is where the transaction hash becomes important.
A transaction hash is a unique string of characters that identifies a specific transaction on the blockchain.
It works like a digital receipt or tracking code.
Every transaction has its own hash, and no two transactions share the same one.
Here are the key ideas behind transaction hashes.
1️⃣ A unique identifier
Each transaction has its own hash that distinguishes it from all others.
2️⃣ Used to track transactions
You can use the hash to check the status of a transaction.
3️⃣ Created automatically
The blockchain generates the hash when the transaction is processed.
4️⃣ Cannot be changed
Once created, the transaction hash is permanent and cannot be modified.
A simple example can help explain this idea.
Imagine sending a package through a delivery service.
After sending it, you receive a tracking number.
You can use that number to check where the package is and whether it has been delivered.
A transaction hash works in the same way.
When you send crypto, you receive a hash that allows you to track the transaction on the blockchain.
For example, a transaction on Ethereum might look like a long string such as:
0x5f2c...9a8b
This string represents your transaction and can be used to view its details.
Transaction hashes are important because they provide transparency.
Anyone can verify a transaction using its hash without needing to trust a third party.
📌 In the next article, we’ll explore:
What a blockchain explorer is and how you can use it to view transactions and wallet activity.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 Before you can use cryptocurrency, the first thing you need is a crypto wallet.
A wallet allows you to store, send, and receive digital assets on the blockchain.
Creating a crypto wallet today is actually very simple and only takes a few minutes.
Here is how the process usually works.
1️⃣ Choose a wallet app
First, you need to choose a wallet application.
Some popular wallets include:
Binance WalletMetaMaskOKX Wallet
Each wallet supports different blockchains, but the basic setup process is very similar.
2️⃣ Create a new wallet
After installing the wallet, you will see an option called Create new wallet.
When you choose this option, the wallet will generate:
Private keySeed phrasePublic address
These are the cryptographic elements that control your funds.
3️⃣ Save the seed phrase
During the setup process, the wallet will show you a seed phrase (usually 12 or 24 words).
This is the most important step.
You should:
✅ Write the words down on paper
✅ Store them somewhere safe
❌ Never share them online
❌ Never store them in screenshots
Anyone who has your seed phrase can access your wallet.
4️⃣ Complete wallet creation
After confirming your seed phrase, your wallet will be ready to use.
You can now:
Receive crypto using your public address (0x8f742ecd5a4b5125ddf4b181fc808d163189789b)
Send crypto to other addressesConnect to blockchain applications
Simple example
Imagine opening a bank account.
The bank gives you an account number to receive money.
In crypto, your wallet address works the same way.
But instead of a bank controlling your account, you control it using your private key.
That’s the core idea behind crypto wallets.
📌 In the next article, we’ll explore:
How to send cryptocurrency to another wallet safely. 🚀

#CryptoSeries

📚 When using cryptocurrency, you need a way to receive funds from other people.
This is where a public address comes in.
A public address is the address people use to send cryptocurrency to your wallet.
It works similarly to a bank account number.
You can safely share your public address with others so they can transfer crypto to you.
Your public address is generated by your wallet and is mathematically connected to your private key.
However, it does not reveal your private key, which keeps your funds secure.
Here are the key ideas behind public addresses.
1️⃣ Used to receive cryptocurrency
People send crypto to your wallet using your public address.
2️⃣ Safe to share publicly
Unlike a private key, a public address can be shared with anyone.
3️⃣ Generated by your wallet
Your wallet automatically creates the address when it is set up.
4️⃣ Looks like a long string of characters
Most addresses appear as a long combination of letters and numbers.
For example, a typical address on Bitcoin might look like this:
bc1p3a8n824de0vf6suhlskefe54sgt6ma9tjqpgr7vxdvvle9q3v0fsgydagz
This long string is the destination where funds can be sent.
A simple way to understand this is to think of your crypto wallet like an email account.
Your public address is like your email address.
People can send something to you using that address.
But only you, with your private key, can access what was sent.
Because of this system, cryptocurrencies such as Bitcoin and Ethereum allow anyone in the world to send and receive money directly without a bank.
📌 In the next article, we’ll explore:
How to create a crypto wallet step by step.
Follow the Crypto 101 series as we continue building the foundation of crypto knowledge. 🚀
#CryptoSeries

📚 When you create a crypto wallet, the system usually gives you a list of random words.
This list of words is called a seed phrase.
The seed phrase is one of the most important security elements in crypto.
A seed phrase is a sequence of words that acts as a backup for your crypto wallet.
It can be used to recover your wallet and restore access to your funds if you lose your device.
Most seed phrases contain 12 or 24 words generated in a specific order.
These words represent the private keys that control your wallet.
Here are the key ideas behind seed phrases.
1️⃣ A backup for your wallet
The seed phrase allows you to restore your wallet if your device is lost or damaged.
2️⃣ Usually 12 or 24 words
Most wallets generate a list of words that must be kept in the exact order.
3️⃣ Can recover all wallet keys
Entering the seed phrase into a compatible wallet can restore access to all your funds.
4️⃣ Must be stored securely
Anyone who has your seed phrase can fully control your wallet.
A simple example can help explain this idea.
Imagine losing your phone that contains your crypto wallet.
Without a backup, your funds might be impossible to access.
However, if you wrote down your seed phrase when creating the wallet, you can simply install the wallet again and enter the same words.
The system will recreate your wallet and restore access to your assets.
Because of this, seed phrases must be protected very carefully.
They are essentially the master backup that controls your entire wallet.
📌 In the next article, we’ll explore:
What a public address is and how people send cryptocurrency to each other.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 When using a crypto wallet, one of the most important concepts to understand is the private key.
Your private key is what truly gives you control over your cryptocurrency.
In blockchain systems, ownership is not determined by your name or identity.
Instead, it is determined by cryptographic keys.
A private key is a secret piece of cryptographic data that allows you to access and control your cryptocurrency.
It is used to sign transactions and prove that you are the owner of the funds.
Anyone who has the private key can move the assets associated with it.
This is why protecting your private key is extremely important.
Here are the key ideas behind private keys.
1️⃣ A secret key that controls your crypto
The private key gives you full access to the cryptocurrency stored in your wallet.
2️⃣ Used to authorize transactions
When you send crypto, the transaction is signed using your private key.
3️⃣ Must always remain private
If someone else gets your private key, they can take your funds.
4️⃣ Cannot be recovered easily
If you lose your private key, you may permanently lose access to your assets.
A simple example can help explain this idea.
Imagine your crypto wallet as a digital vault.
The private key is the only key that can unlock that vault.
If you keep the key safe, your funds remain secure.
But if someone else obtains the key, they can open the vault and take everything inside.
Because of this, keeping your private key secure is one of the most important responsibilities in crypto.
📌 In the next article, we’ll explore:
What a seed phrase is and how it helps you recover access to your crypto wallet.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 In the previous article, we learned that a crypto wallet allows users to store and manage their digital assets.
However, not all wallets work the same way.
Crypto wallets are usually divided into two main categories: hot wallets and cold wallets.
The main difference between them is whether they are connected to the internet.
This difference has a big impact on convenience and security.
A hot wallet is a wallet that is connected to the internet.
These wallets are often used through mobile apps, browser extensions, or websites.
Because they are always online, they are easy to access and convenient for daily transactions.
A cold wallet is a wallet that is kept offline.
It stores private keys without being connected to the internet, which greatly reduces the risk of online attacks.
Here are the key differences.
1️⃣ Internet connection
Hot wallets stay connected to the internet.
Cold wallets remain offline.
2️⃣ Convenience
Hot wallets are quick and easy for frequent transactions.
Cold wallets require extra steps to access funds.
3️⃣ Security level
Hot wallets are more exposed to hacking risks.
Cold wallets are generally much safer from online threats.
4️⃣ Common use cases
Hot wallets are often used for everyday trading or payments.
Cold wallets are typically used for long-term storage.
A simple example can help explain this idea.
Imagine keeping money in two different places.
Some cash is in your pocket for daily spending.
The rest is stored in a safe at home for long-term security.
Hot wallets work like the money in your pocket.
Cold wallets work like the money stored safely in the vault.
Both are useful, but they serve different purposes depending on how often you need access to your funds.
📌 In the next article, we’ll explore:
What a private key is and why it is the most important part of a crypto wallet.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 To use cryptocurrency, you need a way to store and manage your digital assets.
This is where a crypto wallet becomes essential.
A crypto wallet is a tool that allows users to store, send, and receive cryptocurrency.
Unlike a physical wallet that holds cash, a crypto wallet does not actually store coins.
Instead, it stores the cryptographic keys that give you access to your assets on the blockchain.
These keys allow you to prove ownership and authorize transactions.
Without a wallet, you cannot interact with most blockchain networks.
Here are the key ideas behind crypto wallets.
1️⃣ Stores private keys
A crypto wallet keeps the private keys that control your cryptocurrency.
2️⃣ Allows sending and receiving crypto
You can use a wallet to transfer digital assets to other users.
3️⃣ Connects you to the blockchain
Wallets act as the interface that lets users interact with blockchain networks.
4️⃣ Many different types exist
Crypto wallets can be mobile apps, desktop software, hardware devices, or even paper backups.
A simple example can help explain this idea.
Imagine your cryptocurrency exists in a giant digital vault on the blockchain.
Your wallet does not hold the coins themselves.
Instead, it holds the key that unlocks your section of the vault.
When you send crypto to someone, you are using your key to authorize the transfer.
If you lose the key, you lose access to the vault.
That is why protecting your wallet and private keys is extremely important.
Crypto wallets are one of the most important tools for anyone using cryptocurrency.
They allow users to securely manage their digital assets and interact with blockchain systems.
📌 In the next article, we’ll explore:
The difference between hot wallets and cold wallets and how they affect security.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 Not all blockchains are designed in the same way.
Some blockchains are open for anyone to use, while others are restricted to specific participants.
This leads to two main categories: public blockchains and private blockchains.
Both use blockchain technology, but they serve different purposes and operate under different rules.
Understanding the difference helps explain why some blockchains focus on decentralization while others focus on control and efficiency.
A public blockchain is a network that anyone can access and participate in.
Anyone can send transactions, view data, and often help secure the network.
Most well-known cryptocurrencies run on public blockchains.
A private blockchain is a network that is controlled by a specific organization or group.
Only approved participants are allowed to access the system or validate transactions.
Here are the key differences.
1️⃣ Access to the network
Public blockchains allow anyone to join and participate.
Private blockchains require permission from the organization controlling the network.
2️⃣ Level of decentralization
Public blockchains are usually decentralized across many independent participants.
Private blockchains are more centralized and controlled by a specific entity.
3️⃣ Transparency
Public blockchains allow anyone to view transactions and blockchain data.
Private blockchains restrict access to selected participants.
4️⃣ Common use cases
Public blockchains are often used for cryptocurrencies and decentralized applications.
Private blockchains are commonly used by companies for internal systems.
A simple example can help explain this idea.
Imagine two different types of databases.
One is a public online document where anyone can read and contribute information.
The other is a company’s internal database that only employees can access.
Public blockchains work like the open document.
Private blockchains work like the company’s internal system.
Both use similar technology, but their access rules are very different.
📌 In the next article, we’ll explore:
What a crypto wallet is and how it allows users to store and manage their digital assets.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 One of the most important ideas behind blockchain technology is open participation.
Unlike traditional systems, many blockchains allow anyone to join and use the network.
This concept is known as a permissionless blockchain.
A permissionless blockchain is a network where anyone can participate without needing approval from a central authority.
Users can send transactions, run nodes, or help secure the network without asking for permission.
This open access is a key reason why cryptocurrencies are considered decentralized.
Here are the key ideas behind permissionless blockchains.
1️⃣ Anyone can join the network
Users do not need approval from a company or organization to participate.
2️⃣ Anyone can send transactions
People can transfer assets directly on the network without intermediaries.
3️⃣ Anyone can help secure the network
Participants can run nodes, mine, or validate transactions depending on the blockchain design.
4️⃣ No central authority controls access
The network operates through distributed consensus instead of centralized control.
A simple example can help explain this idea.
Imagine a public park that anyone can enter.
There is no gatekeeper deciding who is allowed inside.
People can visit freely, walk around, and participate in activities.
Permissionless blockchains work in a similar way.
Anyone with an internet connection can access the network and interact with it.
This openness is one of the reasons blockchain technology is considered revolutionary.
It allows financial systems and digital infrastructure to operate without relying on centralized control.
📌 In the next article, we’ll explore:
The difference between public blockchains and private blockchains.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 Most blockchain projects are built using a principle called open source.
Open source means that the code behind a project is publicly available for anyone to view, inspect, and use.
Instead of keeping the technology secret, developers publish the source code so the entire community can see how the system works.
This transparency is one of the core ideas behind cryptocurrency and blockchain technology.
When a project is open source, developers around the world can study the code, suggest improvements, and help find potential problems.
Here are the key ideas behind open source in crypto.
1️⃣ The code is publicly available
Anyone can read the source code of the blockchain or application.
2️⃣ Developers can contribute improvements
Programmers from anywhere in the world can suggest updates or fix bugs.
3️⃣ Transparency builds trust
Because the code is visible, users can verify how the system actually works.
4️⃣ Innovation grows faster
Open collaboration allows technology to improve more quickly.
A simple example can help explain this idea.
Imagine a group of engineers building a machine together.
Instead of hiding the design, they publish the full blueprint online.
Other engineers can review the design, suggest improvements, or build their own versions.
Over time, the machine becomes better because many people contribute ideas.
Open source works in a similar way in the crypto world.
By sharing code openly, blockchain projects allow the global developer community to review and improve the technology.
This openness helps increase security, transparency, and innovation.
📌 In the next article, we’ll explore:
What a permissionless blockchain is and why anyone can participate in these networks.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀
#CryptoSeries

📚 Blockchain networks run based on software and a set of rules that everyone in the network follows.
However, sometimes those rules need to change.
Developers may want to add new features, improve security, or fix problems in the protocol.
When the blockchain software is updated or modified, it can create something called a fork.
A fork in blockchain means the network splits into different versions of the software or the chain.
This happens when participants begin following different sets of rules.
Forks are a normal part of how blockchain systems evolve over time.
Here are the key ideas behind blockchain forks.
1️⃣ A change in the blockchain rules
A fork occurs when developers introduce updates to the blockchain protocol.
2️⃣ The network may temporarily split
Different nodes may run different versions of the software during the update.
3️⃣ Can create new chains
In some cases, a fork leads to two separate blockchains continuing independently.
4️⃣ Helps blockchains evolve
Forks allow communities to upgrade technology or fix problems in the network.
A simple example can help explain this idea.
Imagine a group of people writing a shared rulebook.
One day, some members want to change certain rules.
If everyone agrees, the rulebook is simply updated.
But if there is disagreement, the group may split and create two different rulebooks.
Blockchain forks work in a similar way.
They allow networks to update and adapt, but sometimes they can also create new versions of the blockchain.
Understanding forks helps explain how blockchain systems continue to improve over time.
📌 In the next article, we’ll explore:
What open source means in crypto and why transparency is important in blockchain projects.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries

📚 When developers build applications on a blockchain, they cannot test everything directly on the real network.
Mistakes on the real blockchain can cost real money.
To solve this problem, blockchains usually provide two different environments: testnet and mainnet.
Mainnet is the real blockchain network where actual transactions happen and real cryptocurrency is used.
Testnet is a separate network designed for testing and experimentation.
Developers use testnets to try new applications, test smart contracts, and fix bugs before launching on the real network.
Here are the key ideas behind testnet and mainnet.
1️⃣ Mainnet is the real blockchain
Transactions on the mainnet involve real assets and permanent records.
2️⃣ Testnet is used for testing
Developers can safely experiment without risking real money.
3️⃣ Testnet coins have no real value
The tokens used on testnets are free and only exist for testing purposes.
4️⃣ Applications usually launch on testnet first
Before releasing a project to the public, developers test it carefully on a test network.
A simple example can help explain this idea.
Imagine a company building a new airplane.
Before flying real passengers, the engineers run many tests and simulations.
They check the systems, fix problems, and make improvements.
Only after everything works properly do they allow the plane to operate in the real world.
Blockchain developers follow a similar process.
They test their applications on testnets first and only move to the mainnet when the system is ready.
This helps reduce risks and improves the reliability of blockchain applications.
📌 In the next article, we’ll explore:
What a blockchain fork is and why networks sometimes create new versions of their protocol.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

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📚 In the previous article, we learned about the EVM, the system that runs smart contracts on Ethereum and many other compatible blockchains.
However, not every blockchain uses the EVM.
Some networks are designed with completely different architectures and technologies.
These are known as non-EVM blockchains.
A non-EVM blockchain is a blockchain that does not use the Ethereum Virtual Machine to run smart contracts.
Instead, these networks use their own execution environments and programming systems.
Because of this, applications built for EVM networks cannot always run directly on non-EVM blockchains.
Here are the key ideas behind non-EVM blockchains.
1️⃣ Uses a different execution system
Non-EVM blockchains run smart contracts using their own technology instead of the Ethereum Virtual Machine.
2️⃣ Different programming environments
Developers often need different tools or programming languages to build applications.
3️⃣ Separate ecosystems
Applications designed for EVM chains may need significant changes to run on non-EVM networks.
4️⃣ Can offer different advantages
Some non-EVM blockchains focus on higher speed, different consensus models, or specialized features.
A simple example can help explain this idea.
Imagine two different operating systems for computers.
A program designed for one operating system may not run directly on another system without modification.
Blockchains can work in a similar way.
EVM chains follow one system, while non-EVM chains use a completely different environment.
Both types can support smart contracts and decentralized applications, but they operate in different technical ecosystems.
Understanding this difference helps explain why developers sometimes choose specific blockchains for certain applications.
📌 In the next article, we’ll explore:
What testnet and mainnet are and why developers use them when building blockchain applications.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

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📚 Many blockchains today support smart contracts and decentralized applications.
But for these applications to run, the blockchain needs a system that can execute code.
This is where the EVM comes in.
EVM stands for Ethereum Virtual Machine.
It is the system that runs smart contracts on the Ethereum network.
You can think of the EVM as the engine that processes and executes the code of decentralized applications.
When a smart contract is deployed, the EVM reads the code and performs the instructions exactly as written.
This allows developers to build many different applications on top of the blockchain.
Here are the key ideas behind the EVM.
1️⃣ Executes smart contracts
The EVM runs the code of smart contracts and ensures the results are consistent across the network.
2️⃣ Works the same on every node
Every node in the network runs the EVM and processes the same instructions to maintain consensus.
3️⃣ Allows developers to build dApps
The EVM provides the environment where decentralized applications can operate.
4️⃣ Used by many blockchains
Not only Ethereum, but many other blockchains also support EVM compatibility.
A simple example can help explain this idea.
Imagine a global computer where thousands of machines run the same program.
Whenever a smart contract is executed, each machine performs the same calculations and reaches the same result.
The EVM is the system that makes this possible.
It ensures that smart contracts run reliably and produce the same outcome on every node.
Because of this design, the EVM has become one of the most widely used environments for blockchain development.
Many new blockchain networks adopt EVM compatibility so developers can easily build applications across different chains.
📌 In the next article, we’ll explore:
What non-EVM blockchains are and how they differ from EVM-based networks.
If you’re just starting to learn about crypto, follow the Crypto 101 series as we build the foundation step by step. 🚀

#CryptoSeries