The document provides an overview of smart contracts including:
- Defining smart contracts as computational programs on blockchain that can be executed based on defined logics.
- Explaining the key concepts of immutability, determinism, and blockchain context in relation to smart contracts.
- Describing the lifecycle of smart contracts from development to execution.
- Emphasizing the importance of security best practices like minimalism, code quality, and testing when developing smart contracts.
- Outlining the steps taken in the practical session to connect a blockchain account to a decentralized application, including installing requirements, updating app code, and connecting the account.
The document provides an overview of consensus protocols in blockchain technology. It discusses that consensus protocols ensure blockchain networks function as expected in a decentralized manner by controlling the network and ensuring consistency even if some nodes act maliciously. It then describes two prominent consensus protocols: proof of work (PoW) and proof of stake (PoS). PoW requires nodes to solve cryptographic puzzles to validate blocks, while PoS requires nodes to stake cryptocurrency and attest to blocks' validity. The document also notes there is no single best consensus protocol and the suitable solution depends on one's needs and goals.
This document summarizes the key points from the final session of a blockchain solution designer course. It discusses how to build a decentralized application (Dapp) that allows users to mint and transfer non-fungible tokens (NFTs) representing images. The session explains how to set up a Dapp development environment, connect it to an account, write a smart contract to create NFTs, upload images to IPFS, and include functionality for minting, viewing, and transferring NFTs between wallets. By the end of the session, participants will have developed a complete Dapp that implements these core capabilities for creating and managing NFTs on a blockchain network.
This document provides an introduction and overview of key blockchain concepts for developers, including accounts, wallets, transactions, test networks, blockchain clients, and decentralization. It begins with definitions of blockchain accounts, wallets, and transactions. It then discusses the purpose of test networks for blockchain development. It also defines blockchain clients and remote clients and their roles in interacting with blockchain networks. Finally, it discusses the importance of decentralization for blockchains. The document is presented as part of a blockchain solution designer course to provide essential background information for learning blockchain development.
Vs code extensions required for blockchain developmentBlockchain Council
Blockchain development requires a lot of work at the backend. Whether you are new or already established yourself as a Blockchain expert, you would be required to know about the syntax, which can eventually help in the Blockchain applications' seamless functioning. In this blog, we will be exploring VS Code extensions.
This document provides an overview of using the Hardhat development environment to build smart contracts and decentralized applications (dApps) on Polygon. It explains that Hardhat facilitates compiling, testing, and debugging smart contracts while incorporating a local Polygon test network for deployment and debugging. The document then lists 3 tutorials that guide users through setting up their environment, creating a Hardhat project, writing a sample ERC-20 token contract and tests, and deploying to local and Polygon testnets. A basic understanding of JavaScript, terminals, Git, smart contracts, and Metamask is recommended.
Top 10 programming languages for blockchain professionalsBlockchain Council
Almost every other person you meet in today’s context from the technological landscape would know about ‘Blockchain.’ As we know, blockchain is a decentralized distributed ledger which allows for the immutable storage of data over a peer-to-peer network without the need for a centralized identity.
Build Blockchain dApps using JavaScript, Python and C - ATO.pdfRussFustino
Have we found nirvana for Blockchain developers? This session will focus on building blockchain dApps (decentralized Apps) and deploy to blockchain! The session will cover getting started building dApps with PyTeal & Beaker, Reach and C#. We will cover how to set up your development environment as well as walk through a simple app frontend and backend. Finally, we will look one the huge benefits of Reach in the built-in verification process. Reach provides automatic verifications to ensure that your program does not lose, lock away, or overspend funds and guarantees that your applications are free from this entire category of errors. Also covered are building dApps with Python using PyTeal and Algorand for Visual Studio extension for C#.
In this session you will learn how to...
PyTeal
Use Reach to deploy on multiple blockchains
Set up development environment
Create a simple dApp
Verify a dApp
Algostudio Visual Studio extension for C#/.NET
Attacking and Exploiting Ethereum Smart Contracts: Auditing 101Simone Onofri
After web 1.0 and web 2.0, web3 has arrived! After a brief introduction, where we will look at the evolution of the web and what has changed as far as security is concerned, we will dive into blockchain to understand how to attack Smart Contracts on Ethereum, how these intersect with more classic vulnerabilities, and what are the main vulnerabilities we can find in contracts written in Solidity.
The document provides an overview of consensus protocols in blockchain technology. It discusses that consensus protocols ensure blockchain networks function as expected in a decentralized manner by controlling the network and ensuring consistency even if some nodes act maliciously. It then describes two prominent consensus protocols: proof of work (PoW) and proof of stake (PoS). PoW requires nodes to solve cryptographic puzzles to validate blocks, while PoS requires nodes to stake cryptocurrency and attest to blocks' validity. The document also notes there is no single best consensus protocol and the suitable solution depends on one's needs and goals.
This document summarizes the key points from the final session of a blockchain solution designer course. It discusses how to build a decentralized application (Dapp) that allows users to mint and transfer non-fungible tokens (NFTs) representing images. The session explains how to set up a Dapp development environment, connect it to an account, write a smart contract to create NFTs, upload images to IPFS, and include functionality for minting, viewing, and transferring NFTs between wallets. By the end of the session, participants will have developed a complete Dapp that implements these core capabilities for creating and managing NFTs on a blockchain network.
This document provides an introduction and overview of key blockchain concepts for developers, including accounts, wallets, transactions, test networks, blockchain clients, and decentralization. It begins with definitions of blockchain accounts, wallets, and transactions. It then discusses the purpose of test networks for blockchain development. It also defines blockchain clients and remote clients and their roles in interacting with blockchain networks. Finally, it discusses the importance of decentralization for blockchains. The document is presented as part of a blockchain solution designer course to provide essential background information for learning blockchain development.
Vs code extensions required for blockchain developmentBlockchain Council
Blockchain development requires a lot of work at the backend. Whether you are new or already established yourself as a Blockchain expert, you would be required to know about the syntax, which can eventually help in the Blockchain applications' seamless functioning. In this blog, we will be exploring VS Code extensions.
This document provides an overview of using the Hardhat development environment to build smart contracts and decentralized applications (dApps) on Polygon. It explains that Hardhat facilitates compiling, testing, and debugging smart contracts while incorporating a local Polygon test network for deployment and debugging. The document then lists 3 tutorials that guide users through setting up their environment, creating a Hardhat project, writing a sample ERC-20 token contract and tests, and deploying to local and Polygon testnets. A basic understanding of JavaScript, terminals, Git, smart contracts, and Metamask is recommended.
Top 10 programming languages for blockchain professionalsBlockchain Council
Almost every other person you meet in today’s context from the technological landscape would know about ‘Blockchain.’ As we know, blockchain is a decentralized distributed ledger which allows for the immutable storage of data over a peer-to-peer network without the need for a centralized identity.
Build Blockchain dApps using JavaScript, Python and C - ATO.pdfRussFustino
Have we found nirvana for Blockchain developers? This session will focus on building blockchain dApps (decentralized Apps) and deploy to blockchain! The session will cover getting started building dApps with PyTeal & Beaker, Reach and C#. We will cover how to set up your development environment as well as walk through a simple app frontend and backend. Finally, we will look one the huge benefits of Reach in the built-in verification process. Reach provides automatic verifications to ensure that your program does not lose, lock away, or overspend funds and guarantees that your applications are free from this entire category of errors. Also covered are building dApps with Python using PyTeal and Algorand for Visual Studio extension for C#.
In this session you will learn how to...
PyTeal
Use Reach to deploy on multiple blockchains
Set up development environment
Create a simple dApp
Verify a dApp
Algostudio Visual Studio extension for C#/.NET
Attacking and Exploiting Ethereum Smart Contracts: Auditing 101Simone Onofri
After web 1.0 and web 2.0, web3 has arrived! After a brief introduction, where we will look at the evolution of the web and what has changed as far as security is concerned, we will dive into blockchain to understand how to attack Smart Contracts on Ethereum, how these intersect with more classic vulnerabilities, and what are the main vulnerabilities we can find in contracts written in Solidity.
This tutorial will walk you through building a Hyperledger Composer blockchain solution from scratch. In the space of a few hours you will be able to go from an idea for a disruptive blockchain innovation, to executing transactions against a real Hyperledger Fabric blockchain network and generating/running a sample Angular 2 application that interacts with a blockchain network.
This tutorial gives an overview of the techniques and resources available to apply to your own use case.
Note: This tutorial was written against the latest Hyperledger Composer build on Ubuntu Linux running with Hyperledger Fabric v1.0 where referenced below and also tested for a Mac environment.
The blockchain is an incorruptible digital ledger of economic transactions that can be programmed to record not just financial transactions but virtually everything of value.
for more inforamation please visit our youtube channel
https://www.youtube.com/edit?o=U&video_id=EvICyArbFSs
www.rihusoft.com
Flow is a blockchain design that can meet the expectations of mainstream developers and consumers without compromising decentralization or sharding the network.
Want to know the best answer to how to buy algorand in Canada checkout netcoins!Bitcoin Wallet Canada
Even before we begin with investing funds Algorand makes use of the proof-of-stake protocol that is constructed at the Byzantine consensus. Every user’s impact on the selection of this new block is proportional to the range of ALGO cash on stake. Lets learn how to buy Algorand in Canada here.
Create your own Dapps Platform on your own blockchain for your users to create their own decentralized application without the worry of gas prices and changes in protocol or regulations with regards to ethereum. The Dapps is created on an Ethereum platform with a smart contract thereby ensuring an automated payment system. The blockchain ensures immutability, safety and security of the application.
DAO is a business or organization whose decisions are made electronically by written electronic code or by the vote of its members. Basically a set of rules with a strong code that defines what action the organization will take.DAO are useful for organizing a large group of people with the same goal around the globe and creating coordination amongst the same type of people.
This applies to all the valuable exchanges which happen in our life. If you need a document or an agreement to be prepared, in real life, you will have to take the services of a lawyer, pay them a fee, and get the document from them.
Fluence.sh is a Blockchain as a Service product that can simplify the adoption. integration and managing blockchain and smart contracts in your businesses with just a few clicks of a mouse through a single API.
An introduction session in the "Blockchain: Cryptocurrencies and other Business Applications" course that I've just finished delivering to the School of Business of Hong Kong Baptist University.
Eris Industries - American Banker presentation deck. Preston Byrne
Eris Industries' deck (and a recording of the talk) describing our view of where the blockchain space is going in the next couple of years. Any questions, ping Preston directly.
Prominent Blockchain Programming Languages to consider while building Blockch...Shelly Megan
Blockchain programming languages play an important role in developing an effective and accurate Blockchain solution. So, you need to choose the language stack carefully as per the requirements of your Blockchain project.
How to Create Your Own Bondly Clone A Step-by-Step Guide.pdfTurnkeytown
creating a Bondly clone can be a challenging but rewarding process. By following the steps outlined above, you can create a DeFi platform that provides innovative solutions for token swaps, NFT marketplaces, and cross-chain interoperability.
zkFold - Zero Knowledge Smart Contracts on CardanoBharat Mallapur
Slides used during the EMURGO Academy Community event on zkFold, a technology implementation which can enable scalability and private smart contract transactions in an efficient manner on Cardano protocol
This document discusses a roadmap for learning Web 3.0 skills. It recommends first developing skills in Web 2.0 technologies like React and Next.js. It then suggests learning the fundamentals of blockchain, smart contracts using Solidity, and how to build decentralized applications that connect to the blockchain using tools like Web3.js and Ethers.js. Finally, it provides examples of blockchain projects someone could build to develop their skills.
Smart Cards & Devices Forum 2012 - Smart Phones SecurityOKsystem
This document discusses security vulnerabilities that can arise from smartphones. It describes how an attacker who steals a phone can potentially access sensitive data by exploiting vulnerabilities in encryption methods, password policies, and memory handling. Experiments were conducted on Android and iOS devices to demonstrate how passwords and one-time passwords can be retrieved from memory, even on jailbroken or rooted phones. It warns developers to test apps under these conditions to find vulnerabilities.
This blog post is to return to basics. We will discuss what a DApp is, how it differs from a traditional app, and its key benefits and pitfalls. We will also demonstrate how 10Clouds can assist you with decentralized app development.
By the end of this webinar you should be able to understand
The concepts, use cases and basics of smart contracts
How Blockchain and smart contracts work and developer success
How smart contracts work on both the Ethereum and Hyperledger platforms from a practical level
The constructs of smart contract, common coding requirements and demos
What are the most in demand Blockchain Certifications?
How do these certification meet the needs of todays Enterprises?
What about Blockchain Career Demand?
This document provides an overview and update on the Hyperledger project from Dan O'Prey, Chair of Hyperledger Marketing Committee, and Tracy Kuhrt, Community Architect at Hyperledger. It discusses what blockchain technology is for business and highlights some unique features of Hyperledger Fabric and Sawtooth frameworks. It also provides examples of how blockchain can address challenges in cross-border payments, healthcare records, and digital identity. Finally, it outlines ways for attendees to get involved in the Hyperledger community.
Crypto markets experiencing a massive boom have brought tons of new users interested in earning high returns on their investments using digital assets. But what in case you don’t want to get exposed to the high volatility in your best investments? Don’t worry, the crypto industry still has several investment opportunities for you.
Generally, users who earn huge returns by investing in digital assets garner the most attention. However, you have many methods to earn assets with more stability instead of transacting the cryptocurrency. Joining the latest DAO platforms, staking, and yielding is the easiest means to earn income passively.
DecenPool offers crypto passive income that promises to maximize the returns on your asset holding so that you can feasibly reduce the hard work over time. We believe that earning passive income from cryptocurrency is possibly not that easy. Obviously, it will take some time, effort, and quite an amount of capital to get started.
Henceforth, you can only consider investing in assets if you hold some money, and meanwhile you will not regret losing while learning the ropes in order to make profitable money in the current industry. One such new platform is DecenPool to serve users getting started with investing cryptocurrency for good.
DecenPool gives you a smart opportunity to use this yield mechanism platform that carefully generates stable revenue by performing trades on crypto, stocks, and reliable valued assets. This project has hired a team of 100+ remote traders particularly to work on daily trading sessions and 20+ developers in terms of product development.
DecenPool Passive Income Advantages
- Earning passive income with DecenPool is quite a simple process even for the ones with very little oversight in terms of the investment that has to be made.
- The project will offer a launchpad to track the metrics, pricing, and many functionalities needed for every trader/investor alike.
- You have the majority of platforms to choose from, rather DecenPool seems the best solution working for any user providing DecenLabs with a dedicated panel of developers and blockchain experts, DecenPool is integrated with Binance smart chain libraries with ERC-20 blockchain algorithms, as well as solidity server which is an all-in-one package.
- You see, volatility is quite lower in this option as your investment might not be affected severely by wild price swings in an asset’s price.
- You can freely diversify your investments with the help of various methods like staking, yielding, etc to ensure the risk of investment is not a concern point.
This tutorial will walk you through building a Hyperledger Composer blockchain solution from scratch. In the space of a few hours you will be able to go from an idea for a disruptive blockchain innovation, to executing transactions against a real Hyperledger Fabric blockchain network and generating/running a sample Angular 2 application that interacts with a blockchain network.
This tutorial gives an overview of the techniques and resources available to apply to your own use case.
Note: This tutorial was written against the latest Hyperledger Composer build on Ubuntu Linux running with Hyperledger Fabric v1.0 where referenced below and also tested for a Mac environment.
The blockchain is an incorruptible digital ledger of economic transactions that can be programmed to record not just financial transactions but virtually everything of value.
for more inforamation please visit our youtube channel
https://www.youtube.com/edit?o=U&video_id=EvICyArbFSs
www.rihusoft.com
Flow is a blockchain design that can meet the expectations of mainstream developers and consumers without compromising decentralization or sharding the network.
Want to know the best answer to how to buy algorand in Canada checkout netcoins!Bitcoin Wallet Canada
Even before we begin with investing funds Algorand makes use of the proof-of-stake protocol that is constructed at the Byzantine consensus. Every user’s impact on the selection of this new block is proportional to the range of ALGO cash on stake. Lets learn how to buy Algorand in Canada here.
Create your own Dapps Platform on your own blockchain for your users to create their own decentralized application without the worry of gas prices and changes in protocol or regulations with regards to ethereum. The Dapps is created on an Ethereum platform with a smart contract thereby ensuring an automated payment system. The blockchain ensures immutability, safety and security of the application.
DAO is a business or organization whose decisions are made electronically by written electronic code or by the vote of its members. Basically a set of rules with a strong code that defines what action the organization will take.DAO are useful for organizing a large group of people with the same goal around the globe and creating coordination amongst the same type of people.
This applies to all the valuable exchanges which happen in our life. If you need a document or an agreement to be prepared, in real life, you will have to take the services of a lawyer, pay them a fee, and get the document from them.
Fluence.sh is a Blockchain as a Service product that can simplify the adoption. integration and managing blockchain and smart contracts in your businesses with just a few clicks of a mouse through a single API.
An introduction session in the "Blockchain: Cryptocurrencies and other Business Applications" course that I've just finished delivering to the School of Business of Hong Kong Baptist University.
Eris Industries - American Banker presentation deck. Preston Byrne
Eris Industries' deck (and a recording of the talk) describing our view of where the blockchain space is going in the next couple of years. Any questions, ping Preston directly.
Prominent Blockchain Programming Languages to consider while building Blockch...Shelly Megan
Blockchain programming languages play an important role in developing an effective and accurate Blockchain solution. So, you need to choose the language stack carefully as per the requirements of your Blockchain project.
How to Create Your Own Bondly Clone A Step-by-Step Guide.pdfTurnkeytown
creating a Bondly clone can be a challenging but rewarding process. By following the steps outlined above, you can create a DeFi platform that provides innovative solutions for token swaps, NFT marketplaces, and cross-chain interoperability.
zkFold - Zero Knowledge Smart Contracts on CardanoBharat Mallapur
Slides used during the EMURGO Academy Community event on zkFold, a technology implementation which can enable scalability and private smart contract transactions in an efficient manner on Cardano protocol
This document discusses a roadmap for learning Web 3.0 skills. It recommends first developing skills in Web 2.0 technologies like React and Next.js. It then suggests learning the fundamentals of blockchain, smart contracts using Solidity, and how to build decentralized applications that connect to the blockchain using tools like Web3.js and Ethers.js. Finally, it provides examples of blockchain projects someone could build to develop their skills.
Smart Cards & Devices Forum 2012 - Smart Phones SecurityOKsystem
This document discusses security vulnerabilities that can arise from smartphones. It describes how an attacker who steals a phone can potentially access sensitive data by exploiting vulnerabilities in encryption methods, password policies, and memory handling. Experiments were conducted on Android and iOS devices to demonstrate how passwords and one-time passwords can be retrieved from memory, even on jailbroken or rooted phones. It warns developers to test apps under these conditions to find vulnerabilities.
This blog post is to return to basics. We will discuss what a DApp is, how it differs from a traditional app, and its key benefits and pitfalls. We will also demonstrate how 10Clouds can assist you with decentralized app development.
By the end of this webinar you should be able to understand
The concepts, use cases and basics of smart contracts
How Blockchain and smart contracts work and developer success
How smart contracts work on both the Ethereum and Hyperledger platforms from a practical level
The constructs of smart contract, common coding requirements and demos
What are the most in demand Blockchain Certifications?
How do these certification meet the needs of todays Enterprises?
What about Blockchain Career Demand?
This document provides an overview and update on the Hyperledger project from Dan O'Prey, Chair of Hyperledger Marketing Committee, and Tracy Kuhrt, Community Architect at Hyperledger. It discusses what blockchain technology is for business and highlights some unique features of Hyperledger Fabric and Sawtooth frameworks. It also provides examples of how blockchain can address challenges in cross-border payments, healthcare records, and digital identity. Finally, it outlines ways for attendees to get involved in the Hyperledger community.
Crypto markets experiencing a massive boom have brought tons of new users interested in earning high returns on their investments using digital assets. But what in case you don’t want to get exposed to the high volatility in your best investments? Don’t worry, the crypto industry still has several investment opportunities for you.
Generally, users who earn huge returns by investing in digital assets garner the most attention. However, you have many methods to earn assets with more stability instead of transacting the cryptocurrency. Joining the latest DAO platforms, staking, and yielding is the easiest means to earn income passively.
DecenPool offers crypto passive income that promises to maximize the returns on your asset holding so that you can feasibly reduce the hard work over time. We believe that earning passive income from cryptocurrency is possibly not that easy. Obviously, it will take some time, effort, and quite an amount of capital to get started.
Henceforth, you can only consider investing in assets if you hold some money, and meanwhile you will not regret losing while learning the ropes in order to make profitable money in the current industry. One such new platform is DecenPool to serve users getting started with investing cryptocurrency for good.
DecenPool gives you a smart opportunity to use this yield mechanism platform that carefully generates stable revenue by performing trades on crypto, stocks, and reliable valued assets. This project has hired a team of 100+ remote traders particularly to work on daily trading sessions and 20+ developers in terms of product development.
DecenPool Passive Income Advantages
- Earning passive income with DecenPool is quite a simple process even for the ones with very little oversight in terms of the investment that has to be made.
- The project will offer a launchpad to track the metrics, pricing, and many functionalities needed for every trader/investor alike.
- You have the majority of platforms to choose from, rather DecenPool seems the best solution working for any user providing DecenLabs with a dedicated panel of developers and blockchain experts, DecenPool is integrated with Binance smart chain libraries with ERC-20 blockchain algorithms, as well as solidity server which is an all-in-one package.
- You see, volatility is quite lower in this option as your investment might not be affected severely by wild price swings in an asset’s price.
- You can freely diversify your investments with the help of various methods like staking, yielding, etc to ensure the risk of investment is not a concern point.
Similar to 3-ZeroLab_smart_contract-2008.pptx (20)
The document summarizes the research agenda and activities of the Bocconi Algorand Fintech Lab. The lab focuses on (1) research, (2) education, and (3) dissemination related to blockchain, decentralized organizations, and crypto financial markets. Current research projects examine the economics of blockchain and law, decentralized organizations, and digital assets. The lab aims to provide an open research infrastructure through its website, wiki, and computing resources. It faces challenges in coordinating faculty research standards with the fast pace of crypto innovation, and balancing specialized crypto curricula with academic quality.
This document discusses non-fungible tokens (NFTs) and their economics. It provides background on the author and their experience in crypto investing and as a co-founder of companies focused on blockchain and NFT art. It outlines some key problems with the current NFT space around scalability, environmental impact, and forking. It then discusses Aorist, the cultural institution the author co-founded, which supports climate-friendly NFT art using the Algorand blockchain. Aorist has worked with numerous renowned artists and facilitated over $5.5 million in NFT sales. In conclusion, it outlines some unique properties of NFTs on Algorand around optional assets and updatable NFT
- The paper analyzes the economics of non-fungible tokens (NFTs) by constructing an NFT market index and studying its properties.
- Using a repeat sales regression method, the analysis finds an average weekly return of 2.5% for the NFT market index, with a volatility of 19.2% and a Sharpe ratio of 0.939.
- The results show some exposure between the NFT market and cryptocurrency markets, but little exposure to traditional asset markets. Various factors like volatility, valuation ratios, and volume show some degree of return predictability in the NFT market.
The document discusses how digital currencies require digital ledgers to record transactions and ownership. It notes that different entities like tech platforms, banks, and blockchains have different approaches to controlling these digital ledgers. Tech platforms in particular have a comparative advantage in providing credit because they can bundle the ledger with other services to gain valuable information and synergies. However, platforms may also exploit their control over the ledger to increase their market power by restricting the movement of tokens and information to other platforms. Effective regulation is needed to promote competition between platforms and prevent market dominance.
This document provides an overview of yield farming and discusses mechanisms, returns, risks and transaction costs. It analyzes historical data from Curve.fi pools, finding average APYs range from 0.5-6% with maximum APYs of 4-40%. Transaction costs averaged $52 but reached over $400. Key risks include smart contract bugs, price volatility, and impermanent loss from providing liquidity versus holding assets.
The document summarizes research on the adoption of decentralized exchanges (DEX) that use automated market makers (AMM). It finds that liquidity providers only deposit funds if the volatility of token exchange rates is low enough, as high volatility exposes them to losses from arbitrage traders. The research proposes a socially optimal pricing curve for AMMs that balances trading costs with incentivizing liquidity provision. Empirical analysis of DEX data supports the findings that deposit inflows decrease with higher volatility and gas prices are higher for more volatile trading pairs.
The document discusses how blockchain tokens are changing platform economics by addressing old problems like network effects. Utility tokens can help platforms enter the market by eliminating the need for user subsidies upfront. While this moves revenue earlier, overall profits may be lower. Governance tokens could allow for more decentralized and equitable value distribution by users rather than powerful intermediaries. However, each type of token comes with caveats, and does not fully remove traditional economic concerns for platforms.
1) The document discusses the adoption journey of blockchain technologies, focusing on successes and failures. It outlines Dr. Alessio Bonti's background and experience working with emerging technologies at IBM.
2) Bonti describes some of the biggest and smallest problems addressed by early blockchain projects, including reducing paperwork processing time for bank guarantees from 30 days to 1 day.
3) The presentation focuses on using blockchain to promote financial and environmental sustainability through frameworks, indicators, consumer behavior analysis, and incentives that support better decision-making. The Liven cashback app is presented as a case study.
The document discusses central bank digital currencies (CBDCs) based on lessons learned from global CBDC efforts and pilots. It provides an overview of key CBDC concepts and definitions. It then summarizes Accenture's work on three CBDC pilots - an e-Krona pilot with the Swedish central bank exploring a retail CBDC, Project Jura with several central banks exploring cross-border CBDC settlements, and Project Khokha II with the South African central bank exploring CBDC policy implications. The document concludes with a brief outlook on European and global CBDC developments.
How to Setup Warehouse & Location in Odoo 17 InventoryCeline George
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
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Chapter wise All Notes of First year Basic Civil Engineering.pptxDenish Jangid
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
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Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPRAHUL
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
2. ZeroLAB
ZeroLAB
Welcome back!
In the last session, we have explored more essential concepts in blockchain.We hope you have learned some new
knowledge over the past two sessions!
In this session, we will learn about smart contract. This is an utmost important concept whichleverages the growth of
blockchain technology.
I N T R O
3. ZeroLAB
Smart Contract
> A deep dive into the crucial component of
blockchain
By Dr. Alessio Bonti & Jason Pham
7. ZeroLAB
ZeroLAB
Blockchain smart contract is a computational program on blockchain thatcan be
executed based on defined logics. This program is usually immutably deployed and
deterministically executed in a blockchain virtual machine‘s context.
D E F I N I T I O N
Immutability Determinism Blockchain Context
8. ZeroLAB
ZeroLAB
Most blockchain smart contracts cannot be
updated or modified after deploying.
However, they can be deleted.
I M M U T A B I L I T Y
Example
Alice deploys a smart contract Aand finds outit has some
errors.However, she cannot update smart contract A
because it is immutable.
Therefore, she has to write an updatedversion of smart
contract Aand deploysit as a new smart contract B. Alicecan
also delete smart contract A.
9. ZeroLAB
ZeroLAB
Given the same inputs and contexts, the
outputs producedby a smart contract are
always similar regardless who the callers are.
D E T E R M I N I S M
Example
Aliceand Bob call the Guess Number smart contract with
their guesses for a chance to win a bounty.The possible
outputs of their calls are understood to be either “Correct”
or “Incorrect”and the process ofdetermining the output is
also known by bothAliceand Bob as well as any other
participants of the game.
10. ZeroLAB
ZeroLAB
Smart contract execution is limited within
the blockchain network context as it only
has access to on-chain data, their own state
anddata from the invoking transaction.
B L O C K C H A I N C O N T E X T
Example
A smart contract cannot provide Alicewith the ability to get
the weather data as this data is not providedby the
blockchaincontext. Accountdata is, however, available
such as:balance, transactions, smart contracts, because they
are stored and tracked within the blockchain network
context.
12. ZeroLAB
ZeroLAB
Smart contracts are usually written in high-
level language the type of which is
characterized by their relevant blockchain
network. In order for a smart contract to be
deployed, it has to be compiled into a low-
level code that the blockchain virtual machine
can understand.
S M A R T C O N T R A C T L I F E C Y C L E
Blockchains Languages
Ethereum Solidity / Serpent / Vyper
Algorand PyTeal / Reach
Hyperledger Fabric Javascript / Go / Java
Ethereum
Despite a number of languages were introduced, Solidity is the most
popular andadopted by Ethereum developers.
Algorand
There are two languages tobuildsmartcontracts on Algorand- Python
and Reach. WhilePython can be used with the support from PyTeal
library.Reach isa new JavaScript-alikelanguage allowingsecure and
simplesmart contractsdevelopment.
Hyperledger Fabric
Smart contractsin Hyperledger Fabricare written in either JavaScript,
Golang or Java.
13. ZeroLAB
ZeroLAB
S M A R T C O N T R A C T L I F E C Y C L E
After being compiled from a high-level language code, the smart contract can be deployed on
the blockchain platform via a special transaction called contract creation.
A unique identifier will be returned from that transaction. It can be used to interact with the
deployed contract.
14. ZeroLAB
ZeroLAB
S M A R T C O N T R A C T L I F E C Y C L E
A smart contract:
only runwhen theyaretriggered by a
transaction.
never run in the background by itself.
is able to call another contract which can
further call another contract.
Butthe first contract call is always made by a
transaction from anexternal entity (users).
16. ZeroLAB
ZeroLAB
I M P O R T A N T N O T E S
No creator privilege
Unless clearly programmed in thesmart
contract, the creator does not have any
specialcontrol over their smart contract.
Synchronous execution
Smart contracts in thesame flow never run
simultaneously.One is executed after
another.
18. ZeroLAB
ZeroLAB
Security is themost crucial aspect in smart contracts
developing. Ifa smart contract is exploited, the cost
might be extremely expensive.
Therefore, it is suggested to ensure the following criteria
when building smart contracts:
Minimalism
Reuse code
Code quality
Auditability
Test coverage
S E C U R I T Y & B E S T P R A C T I C E S
19. ZeroLAB
ZeroLAB
Complication is not goodfor security. Bugs
and errors are less likely to occur if the code is
simple, short and only does one thing.
Always try to keep the code as simple as
possible to avoid unwanted effects which may
lead to security loopholes. Simpler means
more secure.
MINIMALISM
20. ZeroLAB
ZeroLAB
Avoid reinventing the wheel. Developers are
encouraged to use existing libraries or contracts if
they can. This helps reduce the risk of havinga
security weakness in newly created contracts.
Those smart contracts that are already used and
tested by others are way more secure than thenew
ones. So,reuse code to reduce risk.
REUSE CODE
21. ZeroLAB
ZeroLAB
Mistakes in smart contract code are expensive.
It is not similar to other general programming.
Therefore, developers need to follow
rigorous engineering discipline. A deployed
smart contract must not contains any security
loopholes.
CODE QUALITY
22. ZeroLAB
ZeroLAB
Smart contract code should be clear and easy to
understand. It is easier to spot errors when the
code is well-structured. As smart contracts are
publicly viewable, developers can benefit from
the collective wisdom ofother developers.
However, this is usually onlytrue for code that is
well-organized, easy to follow and adhere to the
conventions.
A U D I T A B I L I T Y
23. ZeroLAB
ZeroLAB
Everything should be tested. As smart contracts
can be executed by anyone withany input, it should
notbe assumed that inputs are well formatted and
free of malicious ambition. Therefore, developers
shouldtest all expected parameters to ensure
they are legitimate before proceeding to any
code execution.
T E S T C O V E R A G E
24. ZeroLAB
Time to build
The theory part about smart contract is over, it is time for practical activities.
25. ZeroLAB
ZeroLAB
This practical session marks the half way of the
training.
This third practical session will show you how
to connect a blockchain account to a web
application.
P R A C T I C A L J O U R N E Y
Topics
1. Create and fundyour account with testnet funds.
2. Setup your development environment.
3. Connect account to a Dapp.
4. Write a simple smart contract, deploy and test.
5. Upload images to IPFS through a Dapp.
6. Create NFT on the Dapp and transfer using your
wallet.
27. ZeroLAB
ZeroLAB
Wewill start interacting with the webfrontend codefrom this practical.
A web frontend is acomponentthat providesuser friendly interfaceto our decentralizedapplication(Dapp).It allows users to
interactwith our Dappjust likeany other conventionalweb apps.
Wewill useReactframeworkto buildour web frontend. Moredetails aboutReactis out ofour lessonscope. You arenot
requiredto knowReactto follow our practical.So, youcan leaveit to us!
I N T R O D U C T I O N
28. ZeroLAB
ZeroLAB
Inthis practical session we will need toinstall 2 things:
Visual Studio Code (VS Code): a code editor software to write and modify code.
NodeJS: a runtime environmentto execute JavaScript code.
Besides, we need:
The PeraAlgo Walletthat is holdingour accounts created from the first practical session.
Andthe Wallet Connection application codebase from GitHub.
R E Q U I R E M E N T S
29. ZeroLAB
ZeroLAB
D O W N L O A D V S C O D E
Go tohttps://code.visualstudio.com/ to download Visual Studio Code. This may take a few minutes.
30. ZeroLAB
ZeroLAB
I N S T A L L V S C O D E
Clickon the downloaded file > Select “I accept the agreement” > Follow the rest of the process with all default choices.
31. ZeroLAB
ZeroLAB
Launch the Ubuntu 20.04 subsystem that
we set up in the last lesson (Mac users
launch your terminal), then run the following
commands.
C L O N E T H E R E P O
// Change to zerolab-prac
directory
cd zerolab-prac
// Clone the connect-wallet
repo
git clone
https://github.com/jasonhtpha
m/connect-wallet.git
// List files and directories
in the current directory
ls
32. ZeroLAB
ZeroLAB
Stillin the terminal,
we install NodeJS by
runningthe
following commands
I N S T A L L N O D E J S
// Download installation script and execute
curl -sL https://deb.nodesource.com/setup_16.x |
sudo -E bash –
// Install NodeJS and npm
sudo apt install nodejs
// Verify NodeJS and npm are installed
node –v
npm -v
// install the development tools, type y when asked
sudo apt install build-essential
Screenshotsof installationinthe next slide…
34. ZeroLAB
ZeroLAB
Now, we gointo the
connect-wallet
folder to setup the
application
I N S T A L L P A C K A G E S
// Get in to the connect-wallet folder
cd connect-wallet/
// Check the content of the folder
ls
// Install necessary packages using npm command
npm i
35. ZeroLAB
ZeroLAB
We can go ahead
and launch VS Code
to open the current
folder so we can
have a look at the
code
L A U N C H V S C O D E
// Launch VS Code
code . &
36. ZeroLAB
If you encounter this error, just close the terminal and launch it
again. Then retry to launch the VS Code.
T R O U B L E S H O O T I N G
38. ZeroLAB
ZeroLAB
In the VS Code
Terminal, run the
following command to
launch the app
L A U N C H A P P
// Launch app with npm command
npm start
39. ZeroLAB
ZeroLAB
L A U N C H A P P
At this stagethe appdoes not doanything, thebutton does nottrigger anything whenyou clickit.
40. ZeroLAB
ZeroLAB
U P D A T E A P P
We will start updating the appto enable it to connect to our account.Open the VS Code> Navigate to the file called
WalletConnect.js (Details on screenshot)
41. ZeroLAB
Update app using provided
code
You should copy the provided pieces of code and paste them under the relevant //
TODO comments in your code.
42. ZeroLAB
ZeroLAB
This part of codewill
give us the tools to
connect to Pera Algo
Wallet and get
accounts information.
U P D A T E A P P
// TODO1: Create the PeraWallet instance
const peraWallet = new PeraWalletConnect();
// TODO1: Connect to an algorand node
const client = new algosdk.Algodv2('', 'https://testnet-
api.algonode.cloud', 443);
Copy andpaste this intoyour VS Code under the relevant comment.
43. ZeroLAB
ZeroLAB
This function will be
triggered when we
click the “Connect to
Pera Wallet” button. It
will provide the way to
connect our account
from Pera Algo Wallet
to our app.
U P D A T E A P P
// TODO2: Handle the connect to PeraWallet button click
const handleConnectWalletClick = () => {
peraWallet.connect().then((newAccounts) => {
// setup the disconnect event listener
peraWallet.connector?.on('disconnect',
handleDisconnectWalletClick);
setAccountAddress(newAccounts[0]);
});
}
44. ZeroLAB
ZeroLAB
This function will be
triggered when we
click the
“Disconnect” button.
It will disconnect our
account from Pera Algo
Wallet to our app.
U P D A T E A P P
// TODO3: Handle the disconnect from PeraWallet button
click
const handleDisconnectWalletClick = () => {
peraWallet.disconnect();
setAccountAddress(null);
setAccountInfo(null);
}
45. ZeroLAB
ZeroLAB
This piece of code will
retrieve the
connected account
information on
Algorand Testnet. The
information including
account balance, assets,
etc. But we will only
show the balance.
U P D A T E A P P
// TODO4: Get account info when the account address is
set
useEffect(() => {
if (accountAddress) {
client.accountInformation(accountAddress).do().then
((accountInfo) => {
setAccountInfo(accountInfo);
}).catch((err) => {
console.log(err);
});
}
}, [accountAddress]);
46. ZeroLAB
ZeroLAB
This piece of code will
automatically
connect to your
account if you
previously connected to
the app.
U P D A T E A P P
// TODO5: Auto reconnect to wallet if wallet is connected
useEffect(() => {
// reconnect to session when the component is mounted
peraWallet.reconnectSession().then((accounts) => {
// Setup disconnect event listener
peraWallet.connector?.on('disconnect',
handleDisconnectWalletClick);
if (accounts.length) {
setAccountAddress(accounts[0]);
}
})
}, []);
47. ZeroLAB
ZeroLAB
C O N N E C T A C C O U N T T O A P P
After you save all the changes in your code (Ctrl + S or command + S), your app is able to connect to your account
now.
48. ZeroLAB
ZeroLAB
C O N N E C T A C C O U N T T O A P P
From your PeraAlgo Wallet app > Tap Scan QR > Scan the QR code on the app.
49. ZeroLAB
ZeroLAB
C O N N E C T A C C O U N T T O A P P
Tap Select Account > Choose Account 1 > Tap Connect.
50. ZeroLAB
ZeroLAB
C O N N E C T A C C O U N T T O A P P
Your accountis connectedto the Wallet Connection app!!!!!!
51. ZeroLAB
We have done enabling the web frontend to connectto our account via Pera Algo
Wallet, which willallow us to do more on the web frontend later.
In the next practical session, we will write, deploy and test a simple smart contract.
P R A C T I C A L 3
Editor's Notes
After being compiled, the smart contract can be deployed on the blockchain platform via a special transaction called contract creation. A unique identifier will be returned from that transaction. In some blockchains, the identifier is a special account address, while in others, it is identified by a unique name or a unique number.
The derived identifier can be used in transactions to transfer and receive funds or invoke functions in the contract.