Blockchain technology is a system for recording information in a way that makes it difficult or impossible to alter, cheat, or hack. It is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain. Each block in the chain contains several transactions, and every time a new transaction occurs on the blockchain, a record of that transaction is added to every participant’s ledger.

The decentralized nature of blockchain ensures that no single entity has control over the entire chain, enhancing security and transparency. Originally developed for the cryptocurrency Bitcoin, blockchain’s applications have expanded to various fields including finance, healthcare, and supply chain management, offering a secure and efficient way to track and verify transactions.

If you ask me to reccomend courses I would do that from platforms, that I have a personal experience in. So, here are mine 🙂
1. Blockchain Specialization by University at Buffalo & The State University of New York on Coursera:
This comprehensive course covers the fundamentals of blockchain, smart contracts, and decentralized applications (DApps). It’s designed for beginners and provides a solid foundation in blockchain technology.

2. Blockchain A-Z™: Learn How to Build Your First Blockchain by Udemy:
This course offers a practical approach to learning blockchain, including how to create a blockchain, mine your first cryptocurrency, and create a smart contract. It’s suitable for beginners with no prior experience.

3. Blockchain Basics by LinkedIn Learning:
This course provides a concise introduction to blockchain technology, covering key concepts, potential applications, and its impact on various industries. It’s ideal for professionals looking to understand the basics of blockchain.

4. Blockchain and Cryptocurrency Explained by edX (offered by the University of California, Berkeley):
This course covers both blockchain technology and its application in cryptocurrencies. It includes topics like consensus protocols, cryptographic principles, and real-world applications, making it suitable for learners who want a deep dive into blockchain.

5. IBM Blockchain Foundation Developer by Coursera:
Offered by IBM, this course is designed for developers who want to understand and build blockchain applications. It covers the technical aspects of blockchain, including Hyperledger Fabric and building blockchain networks.