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BlockChain

Making a simulation of bitcoin in blockchain

What Did We Do

1) making a web server with FLASK to get a node IP for making the bitcoin network

2) there are 3 RestFul API :


    2.1) trx : for making a new transaction
         sending money(amout) from sender to reciever

    2.2) mine : making a block for validation of all
         transactions in mempool with POW

    2.3) chain : getting all the blocks of chain  


3) making a class of blockchain


    3.1) in any block there are : index , timestamp , transaction , proof(nounce) , previous hash

    3.2) every transaction will be added to mempool

    3.3) for mining any block we must do a POW(proof of work) that means we must add a nounce to our block and hash of this must be smaller than network difficulty

    3.4) for any our neighbour chains we must validate them based on two features : 1- validating hash of previous block 2- validating nounce that make hash be smaller than network difficulty

How to use

    1) clone this repository 
        git clone https://github.com/saeed5959/blockchain

    2) install requirements in requirements.txt
        pip3 install -r requirements.txt

    3) run the code in localhost with specified port
        python3 bc.py 6000

    4) send a transaction request to localhost:port/trxs
    5) send a mine request to localhost:port/mine
    6) send a seeing blockchain request to localhost:port/chain

    Point : For sending request to api use postman
            sudo snap postman