DEV Community: Yuvraj Narayansingh Varma

"Blockchain Strata: Unveiling the Layers"

Yuvraj Narayansingh Varma — Tue, 19 Sep 2023 10:39:56 +0000

Blockchain is a decentralized technology that enables secure and
transparent transactions without the need for a third party. It
is made up of a series of layers, each with its own specific
function.

Blockchain Architecture:

👷‍♂️ The Hardware Layer: At the foundation of blockchain are nodes - the network of computers powering it. These nodes decrypt transactions, forming the hardware layer of blockchain.

💾 The Data Layer: Next comes the data layer, where transaction details are securely stored. Each block contains crypto info, public keys, and sender's private keys, connecting to previous and subsequent blocks.

🌐 The Network Layer: This layer facilitates communication among blockchain nodes. It's vital for open systems like blockchain, ensuring nodes know about validated transactions.

🤝 The Consensus Layer: Imagine Romeo and Juliet as blockchain validators. They receive transactions which have to be decrypted and added to a block.
Transactions which Romeo receives are: A and B
Transactions which Juliet receives are: B and C
If both Romeo and Juliet validate the transactions and add them to the blockchain, then transaction B will be written twice on the blockchain. This means double spending will occur. To avoid this Romeo and Juliet compete and solve a cryptic mathematic puzzle and the one who solves first will be the one to add the block to the blockchain.
This form of consensus mechanism is known as Proof of Work.
In the case of Proof of Stake (POS) the validator is randomly picked by the system.

📱 The Application Layer: Apps are built on this layer - from wallets to social media, browsers, DEFI platforms, and NFT marketplaces. The only difference arises is the storage of decentralized data.

🧱 Blockchain Layers:

Layer 0: Blockchain in itself is called layer zero. The foundation of blockchain - the internet, hardware, and connections. It's the starting point for networks like Bitcoin and Ethereum.

Layer 1: Advancing from Layer 0, it maintains blockchain functionality, immutability, consensus methods, programming languages, block time, dispute resolution, and the rules and parameters that assure a blockchain network’s core functionality. Examples: Bitcoin, Ethereum, Cardano, Ripple. Limitation: Scaling.

Layer 2: The scaling solution for specific blockchains, working with third-party integration to overcome Layer 1 limitations and to enhance the number of nodes and as a result system throughput.
Layer 2 is used by protocols to promote scalability by separating some interactions from the base layer. It is the most popular approach for solving scaling issues attached to Proof of Work networks. At present, various industries have begun implementing layer two technologies.
Examples: Optimism, Arbitrum.

Layer 3: Also known as the "application layer," it hosts D-apps and protocols enabling real-world blockchain applications. Layer 3 is where blockchain shines in real-world scenarios.
Examples: Wallets, Uniswap.

🌐 Dive deep into the layers and discover the fascinating world of blockchain architecture! 💡 #BlockchainExplained #TechTalk #CryptoWorld 🚀

"Blockchain 101: From Novice to Ninja"

Yuvraj Narayansingh Varma — Sun, 10 Sep 2023 20:56:18 +0000

Unlocking the Mysteries of Blockchain: A Chocolate Factory Analogy

🍫 Ever wondered what Blockchain really is? Let's simplify the jargon and break it down using a Chocolate Factory analogy! 🍫

🔒 Blockchain Unwrapped
In the world of tech, Blockchain is like a chain of blocks, where each block securely stores information using encryption (Cryptography) and links back to the previous one. It operates in a decentralized manner, just like your favorite Chocolate Factory.

🍬 Chocolate Factory Chronicles
Picture this: in a Chocolate Factory, chocolates are made and ready to be wrapped. But before they're wrapped, there's someone who meticulously checks the chocolate's size, structure, and overall quality. This chocolate represents "data," and the wrapper is the "block." These blocks are like boxes that are part of a chain, with each new block linked to the previous one. If the chocolate doesn't meet the quality criteria, it's rejected—no need to consult the CEO or the production department. This is the essence of the decentralized system!

🏗️ How Blockchain Works
Blockchain is a distributed ledger, meaning information is shared across nodes (computers) on a network. These nodes play a crucial role in securing the network by verifying transactions. Think of them as the dedicated workers in our Chocolate Factory.
When a transaction occurs, all nodes on the network verify its validity through a process called "consensus." Nodes can be individual home computers or large corporate servers. They verify the blocks and add them to the Blockchain network. Transactions are shared across the nodes, and these nodes validate the transactions, adding them to a block. These blocks are then linked to previous ones, completing the transaction cycle.

🔐 Tamper-Proof with Hashing
Each new block contains a "hash value" of the previous blocks, making it nearly impossible to tamper with the data within a block. A hash is like a unique fingerprint containing all the block's information. If there's any change in a hashed file, its hash automatically changes too, ensuring data authenticity and security. This is crucial for preventing fraudulent transactions.

⛽ The Role of Gas Fee
To perform transactions on Blockchain, a "Gas fee" is introduced as a service to validate transactions smoothly. Gas fee is directly proportional to network congestion. To calculate it, you use the formula:

Total Fee = Gas unit (limits) * (Base fee + Tip)

Gas unit: The maximum amount you're willing to spend.
Base fee: The minimum gas required for a transaction.
Tip: An additional fee for faster processing.
Different networks have varying Gas fees based on security, congestion, and transactions per second (tps). With the rise of decentralized apps (DApps), Gas fees have increased. You can reduce costs by transacting during low network usage or by lowering your tip if your transaction isn't time-sensitive.

💡 Blockchain, just like the Chocolate Factory, is all about transparency, security, and tamper-proof data. It's reshaping industries worldwide, and now you're in the know! 🌐

🚀 #BlockchainExplained #Decentralization #CryptoSimplified