Learn the basics of blockchain development.

Mastering Blockchain Development

In this module, we’ll learn the fundamentals of blockchain concepts, from its basics to deploying blockchain networks. We will start with basic cryptography constructs, like hash functions and PKI encryption. We’ll also build a solid base for understanding blockchain and appreciate its value. Then, we will explore the Hyperledger Fabric technology by IBM using hands-on development environment within our browser. This module is a great starting point for engineers looking to develop expertise in blockchain technology with Hyperledger Fabric specialty. In this module, we’ll deploy our own blockchain network and deploy chaincode on it. We’ll also create an application that invokes our chaincode running in the fabric network. We’ll also learn how to manage fabric user identities in our application using wallets.

Become a Blockchain Developer

## Mining

In Bitcoin implementation there is an extra field added in each block, called `nonce`.


![](/api/collection/5178686537990144/5741031244955648/page/5187135082594304/image/6712956189409280)

Mining peers continuously receive new transactions submitted on the chain. In order for a transaction to be confirmed, it should be put in a block, that needs to be created. 

Simply adding transactions to a block is simple - you get the hash or prev block, increment the block number, add the list of transactions, and take its hash. Pretty fast! But in order to incentivize to run a node, Bitcoin awards miners for creating new blocks by giving them newly generated Bitcoins.

Since it would be very simple to mine a block and devalue the generated coin, Bitcoin has made the block creation process challenging. This difficulty self-adjusts to ensure the global pool of miners are able to mine around one block every 10 minutes. This ensures that the supply of new coins is not too fast, making bitcoin a valuable asset.

## Nonce Mining
So Bitcoin adds this extra requirement for a block to have a `nonce` value, such that the block hash of the new block with the nonce has X number of leading zeros.  This X is adjusted by the protocol to control the speed of coin generation. The higher the value of X, the harder it is to calculate a nonce.




# Mining

In Bitcoin implementation there is an extra field added in each block, called `nonce`.


![](/api/collection/5178686537990144/5741031244955648/page/5187135082594304/image/6712956189409280)

Mining peers continuously receive new transactions submitted on the chain. In order for a transaction to be confirmed, it should be put in a block, that needs to be created. 

Simply adding transactions to a block is simple - you get the hash or prev block, increment the block number, add the list of transactions, and take its hash. Pretty fast! But in order to incentivize to run a node, Bitcoin awards miners for creating new blocks by giving them newly generated Bitcoins.

Since it would be very simple to mine a block and devalue the generated coin, Bitcoin has made the block creation process challenging. This difficulty self-adjusts to ensure the global pool of miners are able to mine around one block every 10 minutes. This ensures that the supply of new coins is not too fast, making bitcoin a valuable asset.

# Nonce Mining
So Bitcoin adds this extra requirement for a block to have a `nonce` value, such that the block hash of the new block with the nonce has X number of leading zeros.  This X is adjusted by the protocol to control the speed of coin generation. The higher the value of X, the harder it is to calculate a nonce.




Introduction - Understanding Blockchain

The Technology Pre-reqs for Understanding Blockchain

Blockchain Data Storage

Understanding the Value of Blockchain (Bitcoin example)

Hyperledger Fabric - Concepts

STEP 1: Deploy First Fabric Network

STEP 2: Write and Deploy Chaincode

STEP 3: Create a Client Application

Conclusion

Bitcoin Mining

Mining