Saturday, June 20, 2020
kuailian Decentralized Protocol
Monday, June 15, 2020
Proof of Stake ecosystem. All you need to know
Sunday, June 14, 2020
Trust and Cryptocurrency
HOW BLOCKCHAIN IS REVAMPING BANKING AND FINANCIAL SERVICES
HOW MONETARY POLICY AFFECTS YOU AND I
Proof of Work (Pow) explained
Proof of Work explained
The Proof of Work protocol is one of the methods used during mining process. During this process, nodes (computers) compete among themselves to make sure that the information contained in each block of transactions is accurate. For these efforts, they receive a reward.
If you are paid $10 for a product, you recognise the value of that currency, and you trust it because it’s backed by the government. These institutions act as guarantors of the value of the currencies they print. The Proof of Work protocol does the same for cryptocurrencies. It ensures the data contained in the blockchain is trustworthy by giving the network nodes an incentive to validate accurate data and reject false information.
All of this happens in spite of the fact there is no central institution backing it. When used in the context of a blockchain, it allows for trust between unknown parties because they share a confidence in the veracity of the consensus protocol.
How does Proof of Work actually work?
If I send you one BTC, that transaction is registered on a block with other transactions with a timestamp and communicated to the decentralised network where different machines, or miners, employ their computing power to validate it (along with the rest of the block).
The network nodes validate the information by competing among themselves to find the solution to increasingly more complex mathematical riddles. They present solutions on a trial-and-error basis until one finds the correct number and communicates it to the remaining machines. When a majority of nodes agree that one miner has solved the problem, a consensus is achieved.
For this work, the miner receives a reward in the form of transaction fees and the block of transactions is added to the decentralised, shared ledger where it becomes an immutable part of the blockchain. When these different nodes compete until they reach a solution on which the whole network agrees, they use up a lot of computational power, energy, and time.
As the problems increase in complexity, so do these costs, which provides a further incentive not to cheat the system. Why would you go through all the effort and cost of investing in powerful computers to then miss out on the rewards?
The proof of work protocol that allows for this validation is brilliant in its inception because it relies on human self-interest to guarantee the integrity of the blockchain. Proof of Work exists so that transactions can’t be falsified.
Why does Proof of Work matter?
Proof of Work is essential because it allows for trust in a trustless environment. When miners agree to compete for the reward for getting the next block right, they implicitly agree to abide by the rules of that community of nodes, instead of manipulating the blockchain for their own purposes.
By increasing the difficulty of verifying each block, this protocol ensures excessive mining doesn’t take place. It preserves the supply of cryptocurrency while incentivising miners to keep the network running.
Since it uses limited resources like time, computational strength and energy, Proof of Work isn’t infinitely scalable. This often causes controversy.
An alternative to tackle the resource inefficiencies inherent to this protocol is the Proof of Stake (PoS) consensus mechanism. In this mechanism, the network values seniority and investment in the cryptocurrency over computational power. Since every time a new block is created the miner has to trade in old units of that crypto for new ones, that miner will be in a weaker position to create the next block.
This ensures a continual turnover in who gets to mine each block while also incentivising the trustworthiness of that crypto by making the largest holders an integral part of the process
Introduction to Masternodes
There are several ways to make money in the cryptosphere. To begin with, you can buy and sell digital currencies for a profit through an exchange such as Coinbase. Secondly, you can run a Masternode.
Perhaps you may have heard crypto enthusiasts mention the term Masternode severally, and all this time you have been wondering what it is or how it works. Worry no more, in this post we shall cover everything you need to know about masternodes.
So, what is a Masternode?
A node can simply be understood as a computer that plays a part in ensuring the integrity of a coin network. The crypto space is not only decentralized but also distributed; therefore it functions by several people running nodes from different parts of the world.
That said, you require a full node to host a copy of the Blockchain (coin’s ledger) and thus support the network.
A Masternode is a crypto full node (computer wallet) that supports the network by hosting an entire copy of the coin’s ledger in real time. In return, the Masternode will receive crypto coins as a reward. This is another forum of mining
This must be differentiated from Proof of Work (PoW) mining. PoW, is the original consensus algorithm in a Blockchain network. In Blockchain, this algorithm is used to confirm transactions and produce new blocks to the chain. With PoW, miners compete against each other to complete transactions on the network and get rewarded. This would be explained in a latter post