Geth stores all blockchain data in LevelDB database that stores value in key-value pair. We normally do not need to access these data files because geth provides many utilities to interact with underlying data structure. But, just to understand how geth stores data, let's hack a little bit....
This article is an attempt to look into Ethereum ÐΞVp2p protocol. I will break this into multiple parts. In this article I am going to cover Kademlia Distributed Hash Table. Kademlia distributed hash table was designed by Petar Maymounkov and David Mazières in 2002 for decentralized peer-to-peer computer networks. Ethereum ÐΞVp2p uses Kadmelia distributed hash table to maintain a list of peers. Following are some details of Kadmealia DHT which will help you understand the...
High level understanding of Serenity (Ethereum 2.0). Understanding Beacon Chain, Shard Data Chain. EIP process for Ethereum 2.0. Will ewasm replace EVM and more.....
Ethereum blockchain is going for another fork - Constantinople, in January 2019....
This is an effort to make Ethereum Web3 commands easily available to community of developers and users, I am pleased to release an awesome tool on https://blockaction.io. This is a small write up to introduce this tool. This is pure client side tool which rely on Infura for data , it can also be connected to local RPC web3 provider. Using this tool, you can execute all the Ethereum web3 commands from browse. In...
Blockchain act as a backbone for IoT devices, providing much-needed security and transparency for the processes happening in an IoT ecosystem. By 2019, IDC predicted that 20% of IoT deployments would have Blockchain integrated....
Have you ever wondered how Bitcoin was introduced? From last few years, Bitcoin is a buzzing word in the market, with a bigger number of people trading in it. Now, Bitcoin has become a worldwide phenomenon, due to which it has a large number of followers. To fulfil that demand, we need more coins but as it is not associated with any type of central government so can’t be generated like a note; instead,...
While looking at transaction details of Bitcoin, you see a few other transactions than the one you made. For example on blockchain.info, you might have came across different type of Bitcoin transactions. Lets have look at them one by one. Before we take a look closely on each type, it's worth noting that Bitcoin transfer from one account to another follow Unspent Transaction Output (UTXO) model. I will considering all the transactions form Block...
When talking about ethereum mining, most of the individuals think that they need supercomputers having large multitudes of computational power to pull it off. Well, it is not completely erroneous; unlike a couple of years back, mining cryptocurrency has become quite easier. This has become possible because of the rapid advancement of both cryptocurrency, and the blockchain technologies have experienced over the time. Those days are gone when you needed a mainframe with the processing...
Scalability is one issue that has been troubling blockchain developers and is one of the biggest challenges before it can reach the masses. Below is the daily transaction chart showing transactions since October' 15. image source: etherscan.io The key here is that enough number of nodes must verify the transaction to confirm it as legitimate and to make sure that security isn't compromised, but few enough so as to allow the system to process...
Cryptocurrencies have changed the ways of transactions whether they be business or personal. Below is a graph which shows the number of ethereum transactions per month over years. Image source: Etherscan.io It is impressive that cryptocurrencies such as Ether have grown so much over years. But the problem is that cryptocurrencies were not designed for such a widespread use. And as the virtual currencies have grown, many problems have surfaced. The most important and...
Ether is the fundamental cryptocurrency for operation on Ethereum blockchain. It is used to pay GAS , a unit of computation used in transactions and other state transitions....
What is Ethereum light node? Ethereum light node protocol is big step towards bringing the Ethereum client to small devices with limited hardware resources. Details of light client protocol can be found at GitHub. Go-Ethereum or Geth 1.8.1 has an experimental implementation of light protocol. Lets have a look in detail. Installing Geth First you need to install geth. You can follow the instruction here about geth installation. $geth version Geth Version: 1....
A blockchain is a distributed database that maintains a continuously growing list of records called blocks which are secured from tampering and revision using cryptography....
With Constantinople fork coming closer, listing all EIPs to be included is a priority for the Ethereum Core Developers. In latest Core Devs meeting, the discussion was more focused on streamlining the process of merging of EIPs and about the EIPs proposed to be included in the fork....
