
This course includes our updated coding exercises so you can practice your skills as you learn.
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Blockchain operates in a decentralized network with a chain of blocks containing transactions; nodes maintain the chain and update it, while cryptographic methods make tampering detectable as chains won't match.
Blockchain overcomes expensive, vulnerable traditional transactions and online fraud, avoiding centralised bank risks, by delivering a cost effective, efficient, safe, and secure alternative like bitcoin.
Explore the core components of blockchain, including nodes, transactions, blocks, miners, and the consensus protocol, and how they sustain a distributed ledger.
Explore the three types of blockchain—public, private, and consortium—and learn how open participation, permissioned access, and multi-organization governance shape a peer-to-peer distributed ledger.
Define functions for each GDP request type and interact with a blockchain object to verify operation, then start the server and test endpoints in a browser.
Create and implement the get_last_block method to retrieve the last block of the blockchain using indexing, returning the final element of the chain.
Learn to fetch the blockchain with the get_chain function and mine new blocks, validate the chain, and view json responses in a simple server setup.
Learn how to detect tampering in a blockchain by changing the nonce and validating the chain, then observe how tampering makes the blockchain invalid.
Nowadays, you have probably heard the terms Bitcoin, cryptocurrency, crypto wallet, etc. in your day-to-day life. People usually treat it as an investment opportunity. But apart from that, the technology behind bitcoin, which is blockchain, is really amazing.
Blockchain is a new concept that works on the idea of decentralization. There is no centralized authority present in the blockchain. In traditional concepts, there is one centralized authority present which tracks all the activity of the user. But in blockchain, there is none. So, there is no fear of compromising all user's data when the central authority gets open.
Blockchain was initially intended to use in the field of money transactions but now, different fields are also trying to include it in their domain because of its security.
With the help of blockchain, it is almost impossible to cheat or hack the system. In this course, you will get to know the concepts behind blockchain technology, its importance, its key components, its data structure, and the key elements of blocks. In the last section, of course, we will create one very simple Django-based blockchain project which will perform simple tasks like; mining block, checking chain validity, and getting the entire chain.
Good luck and see you in the course...