Blockchain

Share and get +16 +16 In this guide, you will learn What are ethereum Nodes And Sharding. If you’d like to learn even more, please take a look at our blockchain courses.If you have been active in one form or another in cryptocurrency for the last year then you would know that there has been one issue which has plagued both bitcoin and Ethereum: Scalability.Bitcoin has somewhat addressed this issue by activating Segwit and by hard forking into Bitcoin Cash. Ethereum, however, is trying to solve this issue in a different way. One of the many protocols that they are looking to activate, as they go into the next phase of their growth, is “sharding”. Before we understand what that means, we need to have a thorough understanding of networks and nodes. ethereum Nodes And Sharding?” width=”1200″ ...

Share and get +16 +16 Blockchain And Supply Chain: A Dynamic Duo. The life cycle of a product is an intriguing one. The next time you’re buying something in the supermarket, think of what all it went through to get in your hands. Think about where all the raw materials came from, who all transported the raw material to production plant where it was created, and how it eventually got packaged and ended up in the very shop where you are buying it right now. Blockchain and supply chainAs you may have guessed, your product goes through a lot of processes and middlemen. This system of organizations, people, activities, information, and resources involved in moving a product or service from supplier to customer is called “supply chain”.If you’re interested in diving deeper into supply chain and...

pragma solidity 0.4.18; import "./Vehicle.sol"; contract VehicleOwner { address public owner; mapping(bytes32 => address) public vehicles; event NewVehicleAdded(address indexed newVehicle, uint256 timestamp); function VehicleOwner() public { owner = msg.sender; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(msg.sender == owner); _; } function createNewVehicle(string model, string make, bytes32 vin) public onlyOwner { address newVehicle = new Vehicle(model, make, vin); vehicles[vin] = newVehicle; NewVehicleAdded(newVehicle, now); } } So, let’s go line and by line and understand what is happening here. Code: pragma solidity 0.4.18; An...

Share and get +16 +16 A Beginner’s Guide to Smart Contracts TLDR: A smart contract is a computer protocol intended to digitally facilitate, verify, or enforce the negotiation or performance of a contract. Smart contracts allow the performance of credible transactions without third parties.One of the best things about the blockchain is that, because it is a decentralized system that exists between all permitted parties, there’s no need to pay intermediaries (Middlemen) and it saves you time and conflict. Blockchains have their problems, but they are rated, undeniably, faster, cheaper, and more secure than traditional systems, which is why banks and governments are turning to them. Enjoy a free lesson from the Blockgeeks Library!In 1994, Nick Szabo, a legal scholar, and cryptographer realiz...