What is a Blockchain? Blockchain Simplified for Everyone

Exzo Network
2 min readApr 21, 2023


What is blockchain? Blockchain simplified.

Blockchain, in the simplest terms, is a digital ledger or record-keeping system. It is like a digital notebook that stores information (like transactions) in a secure, transparent, and decentralized manner. Let me break this down further:

  1. Digital ledger: Just as you write your expenses in a notebook, the blockchain keeps a record of digital transactions (like sending and receiving money).
  2. Secure: Each transaction is secured using advanced cryptography, making it difficult for anyone to tamper with the data.
  3. Transparent: Everyone can see the information in the blockchain, making it an open and transparent system.
  4. Decentralized: The digital ledger is not stored in one place but distributed across many computers (called nodes) that work together to maintain the system.

Imagine a chain of blocks, where each block contains a list of transactions. When a new transaction occurs, it is added to the most recent block. Once the block is full, a new block is created and linked to the previous one, forming a chain. This structure makes it hard to alter any information in the blockchain because changing one block would require changing all subsequent blocks.

Gaps in understanding:

  1. Technical details: I didn’t delve into the technical aspects of blockchain, like cryptography, consensus algorithms, or smart contracts.
  2. Different types of blockchains: Public, private, and consortium blockchains cater to different use cases and audiences.
  3. Real-world applications: Blockchain is not limited to just cryptocurrencies. It has applications in various industries like supply chain, healthcare, and finance.

To fill these gaps, consider the following resources:

  1. Websites: Blockgeeks (https://blockgeeks.com) and Coindesk (https://www.coindesk.com) offer beginner-friendly articles and explainers on various blockchain topics.
  2. Books: “Blockchain Basics” by Daniel Drescher and “Mastering Blockchain” by Imran Bashir provide a comprehensive introduction to blockchain technology.
  3. Online courses: Coursera (https://www.coursera.org) and Udemy (https://www.udemy.com) offer various courses on blockchain, suitable for beginners and advanced learners.
  4. YouTube: Channels like “Simply Explained” and “Blockchain at Berkeley” provide clear, visual explanations of blockchain concepts.
  5. Meetups and conferences: Attend local meetups or conferences to learn from experts and network with like-minded individuals in the blockchain community.

Have questions? Feel free to join our community and ask here.

Exzo Network makes blockchain easy for everyone. Checkout the Exzo Web3 Wallet Chrome extension today to get involved in crypto and Web3.

Website: https://exzo.network

Blockchain tutorials: https://github.com/ExzoNetwork

Developer documentation: https://docs.exzo.technology



Exzo Network

A Safe, Scalable, and Upgradeable Web3 Infrastructure featuring full EVM compatibility & Real-Time Transactions. Website: https://exzo.network