A demo blockchain app based on Learn Blockchain By Building Your Own In JavaScript

Summary of concepts

• Create a network of nodes and use broadcast to synchronize the blockchain.
• Create transactions.
• Use proof of work to mine a new block.
• View blockchain and transaction.
• Use consensus with "Longest Chain Rule" to keep nodes up-to-date.

How to run

# Start servers (localhost with differnt ports)
npm run node_1
npm run node_2
npm run node_3
npm run node_4
npm run node_5

# Run the script to pre-fill data
./curlrequests.sh