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BLOCKCHAIN FUNDAMENTALS
What is the blockchain?
Blockchain is a peer-to-peer network that uses a digital ledger to keep track of all transactions. All data transported over Blockchain is encrypted, and every transaction is recorded, ensuring that the data cannot be tampered with. Blockchain networks do not require a central or certifying authority because they are decentralised. These networks may be used for a lot more than just transferring money; contracts, documents, and other types of data can all be shared over the Blockchain network. Encrypted data can be exchanged between numerous providers without exposing personal information.
After a process of maximum trust verification, all transactions and data are connected to the block. It has no centralised control, no territorial boundaries, and no single owner. Decentralization, immutability, security, and transparency are the primary benefits of Blockchain technology.
In a distributed system, the real problem is to achieve integrity and trust.
Why use blockchain?
The blockchain’s primary goal is to overcome the difficulty of obtaining and maintaining integrity in a distributed community network with an unknown number of peers of varying reliability and trustworthiness.
Blockchain Foundation
It includes a review of blockchain technology and cryptocurrencies as a use case of blockchain, as well as the potential for blockchain applications to solve real business challenges in the sector.
Cryptography Foundation
The term “cryptography” refers to a type of internet security. It’s the process of converting data into code (encryption) so that only the intended recipient has access to it. Data encryption safeguards information from would-be hackers, often known as “adversaries “, in the cryptography field.
Types of Cryptography
Symmetric Cryptography
That was first sort of online cryptography, converts data into a cypher, which is an encrypted code.
Asymmetric Cryptography
The transmitter and recipient have distinct keys in asymmetric cryptography. A single key is used to encrypt the data, and a different key is used to decrypt it at the other end.
Cryptography Hash
Hashing is the ultimate type of cryptography. A cryptographic hash is a collection of characters. Any plaintext data can be transformed into a unique string of text using a hashing technique.
Blockchain Analysis
Blockchain analysis is the investigation, classification, and monitoring of blockchain addresses and transactions to comprehend the operations of various blockchain participants.
How the blockchain works
The purpose of cryptocurrency is to enable for the recording and distribution of digital information even without the ability to modify it. therefore, a ledger serves as the framework for permanent ledgers, or transaction details which can’t be changed, deleted.
A new transaction is entered.
The transaction is then submitted to a network of peer-to-peer computers scattered across the world
This network of computers then solves the equations to confirm the validity of the transaction
The transaction is complete.
These blocks are then chained together creating a long history of all transactions that are permanent.
Once confirmed to be legitimate transactions, they are clustered together into blocks.
Architecture design for blockchain based system
Every transaction is authenticated and authorised on a blockchain, which is an open financial ledger or record. A blockchain is a decentralised network made up of millions of computers known as nodes. It’s a distributed database design in which each node acts as a network administrator who joins the network on their own volition. A blockchain design is virtually impossible to compromise since there is no centralised information.
Smart Contract Design
Smart contracts are essentially applications that enable when certain criteria are satisfied and are maintained on a blockchain. They’re usually used to systematize the organize of a contract so that all parties known as fact of the conclusion right away, without the need for any intermediaries or time waste.
