What is blockchain?
Blockchain is a way to store data. You can imagine it as a necklace chain.
Every ring of the chain could Block and every Block contains some data based on your blockchain purpose and reference address for the previous block could Hash.
The hashes are addressed for each block position on the chain example:
Block A Is the first block and it has transaction data and the previous block hash will be empty -> block B will have transaction data and the previous block hash will be the address point for block A and block C Will have a hash for previous block B and so on.
Miners are the factors where blocks are made, it’s the computers where programming functions create hashes and encrypt the data to create the new blocks.
Consensus Mechanism is a fault-tolerant mechanism that is used to get the agreement on block value or state of the network on distributed processes for example (proof of work, Proof of stake, Byzantine fault-tolerant).
This is the fundamental concept of the blockchain:
How does it work?
Blockchain depends on Distributed Ledger Technology (DLT) which means no centralized database blockchain on every server and transparent for all participant’s ledger.
When any transaction happens it will be added to the chain as a new block you can’t edit it and it will Distribute and Ledger throws all blockchain computer servers networks.
So, why does blockchain use this way to store the transactions?
To prevent fraud and hacker attacks because there is no central database and we can verify every transaction from the start of the blockchain to the end of it. and verify if this is the original chain by comparing it with other copies.
Why do we use blockchain?
When do you need to use blockchain?
There are many use cases that are better if developed using blockchain technology.
If there is a trust issue like in the finance and banking industry, if you have huge transactions like the supply chain industry blockchains provide a solution.
How to build your own blockchain?
1-define your use case as one of the above use cases (smart contactin, Data Authentication & Verification, Smart Asset Management).
2- choose the Most Suitable Consensus Mechanism
A Consensus Mechanism is a fault-tolerant mechanism that is used to get the agreement on block value or state of the network on distributed processes examples (proof of work, Proof of 1stake, Byzantine fault-tolerant)
3- Don’t reinvent the wheel use one of open-source platform based on Consensus Mechanism (Ethereum, BigChainDB, Chain Core, Eris: DB)
4- Design the Nodes
Nodes is computers and infrastructure used by blockchain to store data and process the transactions
When you are going to design your nodes you should consider some things: is it private or public or hybrid blockchain, is it local or cloud-hosted?
The operating system you will use
5- create blockchain instance
In this phase you will need to configure and adjust some blockchain elements examples: (Asset issuance, Asset re-issuance, Permissions, Atomic exchanges, Key formats)
6- develop blockchain APIs to communicate with other applications and platforms
7- design and develop admin panel and frontend to manage your blockchain
Blockchain is not only applied to cryptocurrencies it has many applications in real life and business industries and it is one of many ways you can use it to develop your applications and solutions.
CEO at Rabbit Technology