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Ethereum Ppt

An Introduction To Ethereum And Smart Contracts: A Programmable Blockchain

An Introduction To Ethereum And Smart Contracts: A Programmable Blockchain

An Introduction to Ethereum and Smart Contracts: a Programmable Blockchain Bitcoin took the world by surprise in the year 2009 and popularized the idea of decentralized secure monetary transactions. The concepts behind it, however, can be extended to much more than just digital currencies. Ethereum attempts to do that, marrying the power of decentralized transactions with a Turing-complete contract system. In this post we will take a closer look at how Ethereum works and what makes it different from Bitcoin and other blockchains. Read on! In our previous post , we took a closer look at what blockchains are and how they help in making distributed, verifiable transactions a possibility. Our main example was Bitcoin: the world's most popular cryptocurrency. Millions of dollars, in the form of bitcoins, are traded each day, making Bitcoin one of the most prominent examples of the viability of the blockchain concept. Have you ever found yourself asking this question: "what would happen if the provider of this service or application disappeared?" If you have, then learning about Ethereum can make a big difference for you. Ethereum is a platform to run decentralized applications: applications that do not rely on any central server. In this post we will explore how Ethereum works and build a simple PoC application related to authentication. A blockchain is a distributed, verifiable datastore. It works by marrying public-key cryptography with the nobel concept of the proof-of-work. Each transaction in the blockchain is signed by the rightful owner of the resource being traded in the transaction. When new coins (resources) are created they are assigned to an owner. This owner, in turn, can prepare new transactions that send those coins to others by simply embedding the new owner Continue reading >>

Populous Ppt To Ethereum Eth Exchange / Hitbtc

Populous Ppt To Ethereum Eth Exchange / Hitbtc

Dear traders, we will not support the upcoming CHX swap. CHX contract will be frozen after June 1, please make sure that you have transferred all the assets, after the deadline it will not be possible to do. Dear traders, we will not support the upcoming CHX swap. CHX contract will be frozen after June 1, please make sure that you have transferred all the assets, after the deadline it will not be possible to do. Dear traders, we are performing a Red Pulse (RPX) to Red Pulse Phoenix (PHX) token swap. During the swap the deposits, withdrawals, transfers, and trading on RPX will be temporarily suspended. Right after the swap all the holders if RPX will be credited PHX in 1:1 ratio. We will post an update as soon as the swap is completed. Dear traders holding ERC20 ICX tokens on your HitBTC accounts, we kindly inform you that HitBTC supports the ICX token swap. You will receive your new ICX coins with 1:1 rate to your tokens after the mainnet integration works are completed. Happy trading. Dear traders holding ERC20 ICX tokens on your HitBTC accounts, we kindly inform you that HitBTC supports the ICX token swap. You will receive your new ICX coins with 1:1 rate to your tokens after the mainnet integration works are completed. Happy trading. Dear traders holding ERC20 ICX tokens on your HitBTC accounts, we kindly inform you that HitBTC supports the ICX token swap. You will receive your new ICX coins with 1:1 rate to your tokens after the mainnet integration works are completed. Happy trading. Dear traders, we will not support the upcoming CHX swap. CHX contract will be frozen after June 1, please make sure that you have transferred all the assets, after the deadline it will not be possible to do. Continue reading >>

Populous (ppt) Witnesses 57% Gain In Greenish Market

Populous (ppt) Witnesses 57% Gain In Greenish Market

Populous (PPT) Witnesses 57% Gain In Greenish Market The table is full of green colors today. Even though there are slight reds, it is much dominated with greens. Populous, the blockchain technology solution for business is amongst the greener in the market today, and not just a greener, but the greenest. While most coins are adding below 10% to their value, Populous stood out adding to its value far above others. In the market today, the price of Populous went up by 57%. Starting the last 24hrs, PPT was been priced $4.02 against Dollars, the present value of the altcoin after taking a bullish run according to CoinmarketCap is $6.63, while its market cap and 24hrs volume is $229,027,620 and $18,855,513 respectively. Similarly, the last seven days of the altcoin was also featured with addition. At the start of the week, PPT was priced $4.40, it went down to as low as $2.60 and later rose up to maintain its previous starting value, and today, the coin is in the air aiming for the moon. Populous cannot be compared to many other cryptocurrencies in the space. The digital coin services the invoice financing realm, combining blockchain technology, XBRL data, and the Altman Z-score for an in-house credit rating system to assess debts and create an auction platform. Populous is regarded as a P2P invoice-financing marketplace, which allows businesses to crowd source loans using an outstanding invoices. After the invoice is paid, the buyer gains for fronting the money. Invoice financing is regarded as a known method used by businesses to access short time capital. B2B businesses use invoice financing a lot. Populous (PPT) has three ERC-20 tokens PPT (invoice-backed security), PXT (internal cryptocurrency), and Pokens (internal cryptocurrency).The three are used to cater for diff Continue reading >>

Blockchain At Berkeley

Blockchain At Berkeley

Blockchain is a transformative technology with massive potential, and despite the huge demand from nearly all types of companies, there is a distinct shortage of developers - see this article about how blockchain developers are being offered salaries of $250k . Blockchain at Berkeley offers this course with the aim of fulfilling this demand and giving students with minimal blockchain knowledge a chance to prepare themselves for the industry. This course is offered concurrently with Blockchain Fundamentals, another Decal which focuses on being comprehensive, interesting, and theoretical and requires no computer science prerequisites. Although Blockchain for Developers and Blockchain Fundamentals can be taken independently, with little overlapping content and co-dependencies, concurrent enrollment is strongly encouraged. We aim to deliver a holistic experience for different types of blockchain development. The course will emphasize the ins and outs of Ethereum, smart contract security and best practices, integrating with different platforms (IPFS, Oraclize.it, Infura), Bitcoin Script and Lightning Network. By the end of the course, developers will be well versed in Solidity, from setting up the development environment to writing and deploying smart contracts, the workhorse of blockchain applications. Developers will also gain experience integrating cryptocurrency micropayments into web apps, in addition to being introduced to low-level protocol development. Course Staff: Akash Khosla and Nicolas Zoghb Prerequisites: CS61A is required as a base for understanding concepts in Solidity and Bitcoin script. We also recommend taking Blockchain Fundamentals in parallel or at least going through the first few lectures. Class Format: This course is primarily taught through hands-o Continue reading >>

What Is Ethereum? A Step-by-step Beginners Guide

What Is Ethereum? A Step-by-step Beginners Guide

If you want to know what is Ethereum and how it works and what it can be used for, without going deep into the technical abyss, this guide is perfect for you. Important Note: This guide assumes a basic understanding of blockchain technology. If youre unfamiliar with blockchain, check out this step by step introduction for beginners . Beyond Bitcoin & first generation decentralized applications Although commonly associated with Bitcoin , blockchain technology has many other applications that go way beyond digital currencies. In fact, Bitcoin is only one of several hundred applications that use blockchain technology today. [Blockchain] is to Bitcoin, what the internet is to email. A big electronic system, on top of which you can build applications. Currency is just one. Sally Davies, FT Technology Reporter Until relatively recently, building blockchain applications has required a complex background in coding, cryptography, mathematics as well as significant resources. But times have changed. Previously unimagined applications, from electronic voting & digitally recorded property assets to regulatory compliance & trading are now actively being developed and deployed faster than ever before. By providing developers with the tools to build decentralized applications, Ethereum is making all of this possible. At its simplest, Ethereum is an open software platform based on blockchain technology that enables developers to build and deploy decentralized applications. Is Ethereum similar to Bitcoin? Well, sort of, but not really. Like Bitcoin , Ethereum is a distributed public blockchain network. Although there are some significant technical differences between the two, the most important distinction to note is that Bitcoin and Ethereum differ substantially in purpose and capabil Continue reading >>

Smart Contracts And Ethereum

Smart Contracts And Ethereum

Published by Naomi Stone Modified about 1 year ago Presentation on theme: "Smart Contracts and Ethereum" Presentation transcript: Winter School on Cryptocurrency and Blockchain Technologies Shanghai, Jan Loi Luu National University of Singapore Some slides are courtesy of Vitalik Buterin 2 Agenda Smart contracts and applications Ethereum Interesting Ethereum-based projects Problems & challenges 4 Definition A smart contract is a computer program executed in a secure environment that directly controls digital assets 5 A smart contract is a computer program executed in a secure environment that directly controls digital assets 6 A computer program is a collection of instructions that performs a specific task when executed by a computer. A computer requires programs to function, and typically executes the program's instructions in a central processing unit. Wikipedia if HAS_EVENT_X_HAPPENED() is true: send(party_A, 1000) else: send(party_B, 1000) 8 A smart contract is a computer program executed in a secure environment that directly controls digital assets Correctness of execution The execution is done correctly, is not tampered Integrity of code and data Optional properties Confidentiality of code and data Verifiability of execution Availability for the programs running inside Servers run by trusted parties Decentralized computer network (ie. blockchains) Quasi-decentralized computer network (ie. consortium blockchains) Servers secured by trusted hardware (e.g. SGX) 11 A smart contract is a computer program executed in a secure environment that directly controls digital assets 12 Example Legal contract: I promise to send you $100 if my lecture is rated 1* Smart contract: I send $100 into a computer program executed in a secure environment which sends $100 to you if the r Continue reading >>

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