Chainlink presentation
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The document discusses the oracle problem in smart contracts and how Chainlink addresses it. It explains that smart contracts cannot connect to external data or APIs without an oracle. Chainlink provides decentralized oracles that allow smart contracts to securely access off-chain resources. This supports growth of decentralized finance applications and allows new use cases like verifiably random numbers for gaming.
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Chainlink
Chainlink is a decentralized oracle network that allows smart contracts to securely access external data and APIs. It provides smart contracts with data from outside sources through oracle nodes that query, verify, and authenticate external data feeds. Chainlink has built-in price feeds and adapters that allow smart contracts to request data from nodes paid in LINK tokens. The document demonstrates a smart contract using Chainlink to request ETH price data from an API and receive the response once fulfilled.
Top 5 DeFi Applications
Decentralized finance is a distributed financial system where there is no centralized governing body. Decentralized finance or DeFi applications utilize peer-to-peer finance networks. These networks are powered by decentralized and distributed platforms. The DeFi application ecosystem is vast and it includes various types of apps such as wallets, lending platforms, infrastructure development suits etc.
As there are many DeFi applications on the market, finding the top applications can be a difficult process. Here, we will discuss the top 5 DeFi applications – AAVE, Compound, MakerDAO, Synthetix, and MetaMask.
These are some of the widely utilized applications on the market. If you want to learn more about decentralized finance applications, then we have you covered. 101 blockchains feature a blockchain course that focuses on decentralized finance and will help you understand the working mechanism of this new financial structure.
Learn more about the course from here ->
Introduction to DeFi Course
https://academy.101blockchains.com/courses/defi-course
Learn about additional courses and masterclasses for the finance sector ->
Blockchain in Finance Masterclass
https://academy.101blockchains.com/courses/blockchain-in-finance
Central Bank Digital Currency (CBDC) Masterclass
https://academy.101blockchains.com/courses/central-bank-digital-currency
Enterprise Blockchains and Trade Finance Course
https://academy.101blockchains.com/courses/enterprise-blockchains-and-trade-finance
We also offer lucrative certification courses for professionals. Learn more about these courses from here ->
Certified Enterprise Blockchain Professional (CEBP) course
https://academy.101blockchains.com/courses/blockchain-expert-certification
Certified Enterprise Blockchain Architect (CEBA) course
https://academy.101blockchains.com/courses/certified-enterprise-blockchain-architect
Certified Blockchain Security Architect (CBSE) course
https://academy.101blockchains.com/courses/certified-blockchain-security-expert
Read our full guide on this topic ->
https://101blockchains.com/decentralized-finance-applications/
https://101blockchains.com/top-defi-protocols/
https://101blockchains.com/top-defi-wallets/
https://101blockchains.com/best-defi-asset-management-tools/
https://101blockchains.com/decentralized-finance-tools/
Cybersecurity aspects of blockchain and cryptocurrency
Slides from Tony Martin-Vegue's presentation at PRMIA 2018 Risk Management and Regulatory Compliance Round Table in San Francisco, CA | April 11, 2018
"Cybersecurity Aspects of Blockchain and Cryptocurrency"
Abstract:
Many companies are considering blockchain technologies to make transactions faster, more secure and cost effective. If you are performing risk analysis on these emerging technologies, you ask be asking yourself: how do I even start to analyze risk when there are so many unknowns? A successful analysis requires a paradigm shift in thinking into two areas: casting aside the defense-in-depth metaphor to describe security controls; and, how we assess and analyze risk of new and emerging technologies that have a high degree of uncertainty.
This talk will cover how to reframe your assessments for emerging technologies, such as blockchain, and how risk quantification methodologies such as Factor Analysis of Information Risk (FAIR) can help answer some of these questions and produce a credible risk assessment.
List of Top 50 Companies Using Blockchain Technology
Blockchain is here to stay, and it’s slowly making its place among various sectors. Thus, many enterprise companies are using blockchain technology for their business. Well, blockchain technology does come with a lot of use cases, so why wouldn’t companies use it?
Blockchain technology use cases have surpassed the limitation of being only in the finance sector. In reality, blockchain is ruling a lot of sectors such as Insurance, Healthcare, Government, Banking, etc.
Examples of companies using blockchain include Visa, HSBC, BBVA, Shell, TenneT, AIA group, etc. Here, we will list the top companies with blockchain technology solutions to help you understand how these companies are utilizing the benefits of blockchain.
If you are struggling with developing your very own blockchain project roadmap, then it’s best to start with blockchain courses. 101 Blockchains offers a lot of materials and resources to help industry leaders better understand the concepts of blockchain. We recommend starting with our certification courses.
Learn more about the certification courses from here ->
Certified Enterprise Blockchain Professional (CEBP) course
https://academy.101blockchains.com/courses/blockchain-expert-certification
Certified Enterprise Blockchain Architect (CEBA) course
https://academy.101blockchains.com/courses/certified-enterprise-blockchain-architect
Certified Blockchain Security Expert (CBSE) course
https://academy.101blockchains.com/courses/certified-blockchain-security-expert
Check out our full guide on this topic from here ->
https://101blockchains.com/companies-using-blockchain-technology/
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2. What is Blockchain
3. Traditional Transaction vs Blockchain
4. How Blockchain Works
5. Benefits of Blockchain
6. Blockchain Transaction Demo
Here is the link to the Blockchain blog series: https://goo.gl/DPoAHR
You can also refer this playlist on Blockchain: https://goo.gl/V5iayd
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advantages ,disadvantage ,future scope about the blockchain technology
Introduction to Bitcoin's Scripting Language
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Recommended
Chainlink
Chainlink is a decentralized oracle network that allows smart contracts to securely access external data and APIs. It provides smart contracts with data from outside sources through oracle nodes that query, verify, and authenticate external data feeds. Chainlink has built-in price feeds and adapters that allow smart contracts to request data from nodes paid in LINK tokens. The document demonstrates a smart contract using Chainlink to request ETH price data from an API and receive the response once fulfilled.
Top 5 DeFi Applications
Decentralized finance is a distributed financial system where there is no centralized governing body. Decentralized finance or DeFi applications utilize peer-to-peer finance networks. These networks are powered by decentralized and distributed platforms. The DeFi application ecosystem is vast and it includes various types of apps such as wallets, lending platforms, infrastructure development suits etc.
As there are many DeFi applications on the market, finding the top applications can be a difficult process. Here, we will discuss the top 5 DeFi applications – AAVE, Compound, MakerDAO, Synthetix, and MetaMask.
These are some of the widely utilized applications on the market. If you want to learn more about decentralized finance applications, then we have you covered. 101 blockchains feature a blockchain course that focuses on decentralized finance and will help you understand the working mechanism of this new financial structure.
Learn more about the course from here ->
Introduction to DeFi Course
https://academy.101blockchains.com/courses/defi-course
Learn about additional courses and masterclasses for the finance sector ->
Blockchain in Finance Masterclass
https://academy.101blockchains.com/courses/blockchain-in-finance
Central Bank Digital Currency (CBDC) Masterclass
https://academy.101blockchains.com/courses/central-bank-digital-currency
Enterprise Blockchains and Trade Finance Course
https://academy.101blockchains.com/courses/enterprise-blockchains-and-trade-finance
We also offer lucrative certification courses for professionals. Learn more about these courses from here ->
Certified Enterprise Blockchain Professional (CEBP) course
https://academy.101blockchains.com/courses/blockchain-expert-certification
Certified Enterprise Blockchain Architect (CEBA) course
https://academy.101blockchains.com/courses/certified-enterprise-blockchain-architect
Certified Blockchain Security Architect (CBSE) course
https://academy.101blockchains.com/courses/certified-blockchain-security-expert
Read our full guide on this topic ->
https://101blockchains.com/decentralized-finance-applications/
https://101blockchains.com/top-defi-protocols/
https://101blockchains.com/top-defi-wallets/
https://101blockchains.com/best-defi-asset-management-tools/
https://101blockchains.com/decentralized-finance-tools/
Cybersecurity aspects of blockchain and cryptocurrency
Slides from Tony Martin-Vegue's presentation at PRMIA 2018 Risk Management and Regulatory Compliance Round Table in San Francisco, CA | April 11, 2018
"Cybersecurity Aspects of Blockchain and Cryptocurrency"
Abstract:
Many companies are considering blockchain technologies to make transactions faster, more secure and cost effective. If you are performing risk analysis on these emerging technologies, you ask be asking yourself: how do I even start to analyze risk when there are so many unknowns? A successful analysis requires a paradigm shift in thinking into two areas: casting aside the defense-in-depth metaphor to describe security controls; and, how we assess and analyze risk of new and emerging technologies that have a high degree of uncertainty.
This talk will cover how to reframe your assessments for emerging technologies, such as blockchain, and how risk quantification methodologies such as Factor Analysis of Information Risk (FAIR) can help answer some of these questions and produce a credible risk assessment.
List of Top 50 Companies Using Blockchain Technology
Blockchain is here to stay, and it’s slowly making its place among various sectors. Thus, many enterprise companies are using blockchain technology for their business. Well, blockchain technology does come with a lot of use cases, so why wouldn’t companies use it?
Blockchain technology use cases have surpassed the limitation of being only in the finance sector. In reality, blockchain is ruling a lot of sectors such as Insurance, Healthcare, Government, Banking, etc.
Examples of companies using blockchain include Visa, HSBC, BBVA, Shell, TenneT, AIA group, etc. Here, we will list the top companies with blockchain technology solutions to help you understand how these companies are utilizing the benefits of blockchain.
If you are struggling with developing your very own blockchain project roadmap, then it’s best to start with blockchain courses. 101 Blockchains offers a lot of materials and resources to help industry leaders better understand the concepts of blockchain. We recommend starting with our certification courses.
Learn more about the certification courses from here ->
Certified Enterprise Blockchain Professional (CEBP) course
https://academy.101blockchains.com/courses/blockchain-expert-certification
Certified Enterprise Blockchain Architect (CEBA) course
https://academy.101blockchains.com/courses/certified-enterprise-blockchain-architect
Certified Blockchain Security Expert (CBSE) course
https://academy.101blockchains.com/courses/certified-blockchain-security-expert
Check out our full guide on this topic from here ->
https://101blockchains.com/companies-using-blockchain-technology/
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This Edureka video on "Blockchain Explained" is to guide you through the fundamentals of the new revolutionary technology called Blockchain and its defining concepts. Below are the topics covered in this tutorial:
1. History of blockchain
2. What is Blockchain
3. Traditional Transaction vs Blockchain
4. How Blockchain Works
5. Benefits of Blockchain
6. Blockchain Transaction Demo
Here is the link to the Blockchain blog series: https://goo.gl/DPoAHR
You can also refer this playlist on Blockchain: https://goo.gl/V5iayd
Blockchain Technology
a brief presentation on blockchain technology :
containing what ,how ,when
advantages ,disadvantage ,future scope about the blockchain technology
Introduction to Bitcoin's Scripting Language
An introduction to Bitcoin's scripting language. Beginning with a historical perspective all the way to seeing an actual transaction's scripts being run in a stack environment. Further resources are provided in order to learn more about this incredible technology. http://youtu.be/4qz7XehSBCc
Building Blockchain Application with Corda
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Blockchains have attracted overwhelming global interest within the governments and businesses, with applications in key industries, such as finance, insurance, logistics, energy and transportation. The blockchain technology is foreseen as a key component of future smart cities and companies by enhancing the security, data management and process automation.
However, there is still a number of challenges on multiple stages that need to be solved prior to substantial adoption of blockchain technology in the enterprise, starting from scalability and manageability of blockchain networks up to integration, privacy and compliance issues. These and other challenges are discussed in the talk, together with existing and future approaches to solve them.
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2. Smart Contract Languages
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4. Solidity Tools
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Here is the link to the Blockchain blog series: https://goo.gl/DPoAHR
You can also refer this playlist on Blockchain: https://goo.gl/V5iayd
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Subsequently, the session will outline the parameters and metrics related to Blockchain Scalability in detail. In this context, the session will deep dive into architectural and algorithmic techniques that enables a scalable Blockchain.Architectural techniques such as vertical scaling and horizontal scaling will be explained in detail. Design techniques such as State Channels, Sharding, SideChains, Off chain computations, Block Size and Time Optimization etc. will be explained.
In summary, this session will conclude with the implications and trade-off between Blockchain Scalability, Security, Simplicity and Interoperability. Looking forward to your views and thoughts !
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Blockchain ppt
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Speaker: Robin Moffatt, Developer Advocate, Confluent
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Over the last few years, breakthroughs in blockchain tech have infused some of the most revolutionary and exceptional upgrades to processes across various industries. This growing impact of blockchain on different industries has risen the confidence of stakeholders and in turn egging them on to focus on use cases that seemed complex before. Spotting the potential of blockchain and opportunities it opens up, legacy auto majors have begun adopting this emerging tech to remain competitive as well as relevant in future market scenarios.
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This report includes a comprehensive analysis of the adoption of blockchain tech in the auto industry and also highlights the major trends and opportunities across the ecosystem.
To purchase the full report, write to us at info@netscribes.com
Visit www.netscribes.com
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for more information please visit our youtube channel
https://www.youtube.com/edit?o=U&video_id=EvICyArbFSs
www.rihusoft.com
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Let's take a look at what DeFi is, what tools are available out there, are they viable or just theoretical, who and how uses them, and most importantly, how can you use them (and if there is a reason for that).
Agenda:
- What is DeFi
- Open Lending Protocols (MakerDAO, Dharma, Compound)
- Decentralized Prediction Markets, Hedging (Augur, Gnosis)
- Exchanges (IDEX, EtherDelta, Binance DEX, Uniswap) and Open Marketplaces (OpenSea, Rarebits, Decentraland)
- Stablecoins (Dai, Tether)
- Usecases for you
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Bringing back childhood memories of collecting sports cards, posters, memorabilia in the form of Sports NFT attracts a versatile audience regardless of age.
Clubs can tokenize and strengthen their royalty payments, contracts, and management of players.
Players can tokenize their profiles, image, name, and create opportunities to join clubs globally. They can also opt for royalties for their tokenized assets and contracts. So, whenever a fan reproduces the assets, players become entitled to receive royalties in fractions.
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You are already the Duke of DevOps: you have a master in CI/CD, some feature teams including ops skills, your TTM rocks ! But you have some difficulties to scale it. You have some quality issues, Qos at risk. You are quick to adopt practices that: increase flexibility of development and velocity of deployment. An urgent question follows on the heels of these benefits: how much confidence we can have in the complex systems that we put into production? Let’s talk about the next hype of DevOps: SRE, error budget, continuous quality, observability, Chaos Engineering.
Chainlink VRF.pdf
Chainlink VRF provides a verifiable source of randomness to smart contracts that is resistant to manipulation. It leverages a decentralized network of Chainlink nodes to generate random numbers and values for applications like selecting lottery winners or generating random traits for NFTs. The presentation demonstrated how to build a smart contract that uses Chainlink VRF to create a dynamic NFT with randomized attributes.
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Supporting trade finance with letters of credit on corda
This document discusses using Corda and blockchain technology to support trade finance through letters of credit. It provides an overview of Corda and its goals in trade finance, including payments, KYC/KYS, and negotiable title documents. The document outlines R3's focus on trade business networks, invoice management solutions, and core banking providers. It then demonstrates a scenario of using Corda for electronic bills of lading and describes the components of a Corda application, including states, contracts, and flows.
Blockchain Technology | Blockchain Explained | Blockchain Tutorial | Blockcha...
This Edureka Blockchain technology tutorial will give you an understanding of how blockchain works and what are blockchain technologies. This tutorial helps you to learn following topics:
1. What are Blockchain & Bitcoin
2. Blockchain Technologies
3. Peer to Peer Network
4. Cryptography
5. Proof of Work & Blockchain Program
6. Ethereum & Smart Contracts
7. Blockchain Applications and Use Cases
Introduction to Blockchain
Blockchain is a new technology that allows for more secure and transparent transactions by recording them in distributed ledgers known as blockchains. Encrypted Labs is a blockchain consulting company that helps clients identify problems that can be solved using blockchain applications. They work with clients to design customized blockchain solutions and have expertise in a variety of industries. Some potential use cases discussed include supply chain management, cybersecurity, healthcare records, and intellectual property tracking.
Hyperledger Fabric
Hyperledger Fabric is a permissioned blockchain framework that provides confidential transactions and smart contract functionality. It uses channels to isolate data on the ledger and provide private and confidential transactions between authorized participants. Key components include assets that represent real-world value, chaincode/smart contracts that define transactions and update assets on the ledger, and a ledger to record the immutable transaction history.
Challenges of Blockchain Technology for the Enterprise
Blockchains have attracted overwhelming global interest within the governments and businesses, with applications in key industries, such as finance, insurance, logistics, energy and transportation. The blockchain technology is foreseen as a key component of future smart cities and companies by enhancing the security, data management and process automation.
However, there is still a number of challenges on multiple stages that need to be solved prior to substantial adoption of blockchain technology in the enterprise, starting from scalability and manageability of blockchain networks up to integration, privacy and compliance issues. These and other challenges are discussed in the talk, together with existing and future approaches to solve them.
Ten Blockchain Applications
In this webinar Prof. Banafa will discuss in details the use of Blockchain in the following businesses: Insurance; Payments; Internet-of-Things (IoT); Supply Chain; Healthcare; Government; Identity; Advertising; Marketing; Banking.
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This Edureka's Solidity Tutorial video is intended to guide you through the basics of Ethereum's smart contract language called solidity. Through the course of this video you will go through the following topics:
1. Smart Contract Programming
2. Smart Contract Languages
3. What is Solidity?
4. Solidity Tools
5. Solidity Programming
-structure of a contract
-operators
-data types
-data structure
-functions
-control structure
-exception handling
6. Application of what we learnt
Here is the link to the Blockchain blog series: https://goo.gl/DPoAHR
You can also refer this playlist on Blockchain: https://goo.gl/V5iayd
EVM - The Heart of Ethereum
The document discusses the Ethereum Virtual Machine (EVM) which is the core component of the Ethereum blockchain that executes smart contracts. It describes the EVM architecture including its machine space, execution model using an abstract stack-based design. Transactions are triggered via calls between accounts, represented as addresses mapped to world state. The EVM execution consumes gas paid for computation and storage in each transaction to avoid infinite loops. Future upgrades like EVM 2.0 may improve performance by using technologies like WebAssembly.
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Blockchain Scalability is one of the most significant concern for Minimum Viable Blockchain Implementation. It is one of the key aspects determining the relevance and feasibility of Blockchain Technology for a particular use case.This session will cover the fundamental aspects of distributed computing that determine the contours of scalability.
Subsequently, the session will outline the parameters and metrics related to Blockchain Scalability in detail. In this context, the session will deep dive into architectural and algorithmic techniques that enables a scalable Blockchain.Architectural techniques such as vertical scaling and horizontal scaling will be explained in detail. Design techniques such as State Channels, Sharding, SideChains, Off chain computations, Block Size and Time Optimization etc. will be explained.
In summary, this session will conclude with the implications and trade-off between Blockchain Scalability, Security, Simplicity and Interoperability. Looking forward to your views and thoughts !
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Blockchain is a distributed digital ledger that records transactions in blocks that are linked using cryptography. It allows transactions to be recorded and distributed but not altered, making it possible for users to establish trust without the need for a central authority. Potential applications include digital identity, tracking supply chains, and facilitating peer-to-peer payments without intermediaries. While businesses are beginning to pilot uses of blockchain, widespread adoption will require addressing issues like scalability and determining how it can transform existing processes.
Blockchain ppt
Blockchain is a digital ledger that chronologically records transactions without privacy inclusion. Solidity is the main programming language used to write smart contracts for Ethereum blockchains. The blockchain works by broadcasting new transactions to all nodes, collecting transactions into blocks, nodes working to find proofs of work, broadcasting validated blocks, and creating the next block using the hash of the previous block. Blockchain can revolutionize transactions involving money, goods, property, and avoid fraud. It can make money transfers, property purchases, healthcare, and authenticating purchases more efficient. Blockchain types include public, private, and consortium blockchains. Advantages include transparency, security, efficiency while disadvantages include human error, slow speeds, and energy use. Applications include
Blockchain supply chains v0.4
Blockchain technology has the potential to improve today's complex global supply chains by providing a distributed ledger that allows all parties to securely track shipments and transactions without error. This can reduce costs, increase transparency, and help address issues like fraud. Several companies are already testing blockchain applications to digitally track shipments of goods, verify product authenticity, and automate payments through smart contracts across supply chains. Widespread adoption may depend on establishing standards, addressing regulatory concerns, and resolving technical challenges regarding scalability and resilience.
What is the future of blockchain in cybersecurity
The entire Blockchain certification program is divided into different modules, which will let you explore Blockchain technology and its use cases in cybersecurity.
Blockchain Interview Questions And Answers | Blockchain Technology Interview ...
The document provides information to differentiate between Blockchain and Hyperledger:
- Blockchain is a decentralized technology that records immutable transaction records in blocks secured by cryptography. It can be public, private, or consortium. Hyperledger is a platform that allows building private blockchains where access is limited.
Blockchain (1).pptx
This document discusses blockchain technology, including what blockchain is, how it works, types of blockchain networks, applications of blockchain, advantages and disadvantages. Blockchain is a distributed digital ledger that records transactions in blocks that are linked using cryptography. It allows for transactions to be recorded and distributed without a central authority. Consensus algorithms like proof of work are used to validate transactions and add new blocks to the blockchain. Blockchain has applications in financial transactions, asset tracking, data storage and decentralized applications. Its advantages include transparency, security and cost reduction. However, it also faces challenges related to speed and implementation costs.
Steps to Building a Streaming ETL Pipeline with Apache Kafka® and KSQL
Speaker: Robin Moffatt, Developer Advocate, Confluent
In this talk, we'll build a streaming data pipeline using nothing but our bare hands, the Kafka Connect API and KSQL. We'll stream data in from MySQL, transform it with KSQL and stream it out to Elasticsearch. Options for integrating databases with Kafka using CDC and Kafka Connect will be covered as well.
This is part 2 of 3 in Streaming ETL - The New Data Integration series.
Watch the recording: https://videos.confluent.io/watch/4cVXUQ2jCLgJNmg4kjCRqo?.
Blockchain Adoption in the Automotive Industry
Over the last few years, breakthroughs in blockchain tech have infused some of the most revolutionary and exceptional upgrades to processes across various industries. This growing impact of blockchain on different industries has risen the confidence of stakeholders and in turn egging them on to focus on use cases that seemed complex before. Spotting the potential of blockchain and opportunities it opens up, legacy auto majors have begun adopting this emerging tech to remain competitive as well as relevant in future market scenarios.
Current blockchain solutions for the automotive industry range from mobility services to data monetization. Among these solutions, BC seeks to answer challenges posed in the insurance, the marketplace economy as well as the vehicle autonomy spaces to further bridge the ever narrowing distance between consumers and producers.
This report includes a comprehensive analysis of the adoption of blockchain tech in the auto industry and also highlights the major trends and opportunities across the ecosystem.
To purchase the full report, write to us at info@netscribes.com
Visit www.netscribes.com
Hyperledger Composer
Composer is a framework to accelerate the development of applications built on the top of Blockchain platform such as Hyperledger Fabric.Here we have complete information about Composer and Playground
for more information please visit our youtube channel
https://www.youtube.com/edit?o=U&video_id=EvICyArbFSs
www.rihusoft.com
DeFi - Decentralized Finance - Wallstreet Meets Blockchain
A new movement is pumping oxygen into the cryptocurrency industry despite asset prices that remain 65% lower than where they were in late 2017. It’s called DeFi, short for decentralized finance—it’s the notion that crypto entrepreneurs can recreate traditional financial instruments in a decentralized architecture, outside of companies’ and governments’ control.
Let's take a look at what DeFi is, what tools are available out there, are they viable or just theoretical, who and how uses them, and most importantly, how can you use them (and if there is a reason for that).
Agenda:
- What is DeFi
- Open Lending Protocols (MakerDAO, Dharma, Compound)
- Decentralized Prediction Markets, Hedging (Augur, Gnosis)
- Exchanges (IDEX, EtherDelta, Binance DEX, Uniswap) and Open Marketplaces (OpenSea, Rarebits, Decentraland)
- Stablecoins (Dai, Tether)
- Usecases for you
Velas Blockchain for NFT Sports
The digital era has changed the ways brands and teams are connecting with their fans.
By leveraging new technologies like NFTs and fan tokens, these sports brands are reaching new spaces and a better revenue flow.
Bringing back childhood memories of collecting sports cards, posters, memorabilia in the form of Sports NFT attracts a versatile audience regardless of age.
Clubs can tokenize and strengthen their royalty payments, contracts, and management of players.
Players can tokenize their profiles, image, name, and create opportunities to join clubs globally. They can also opt for royalties for their tokenized assets and contracts. So, whenever a fan reproduces the assets, players become entitled to receive royalties in fractions.
Fans can invest in NFT assets offered by these entities and trade them, such as signed autographs, owned cars, contracts (chance to meet and spend time with their favorite player). They can also trade these assets on the secondary market to the highest bidders.
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Our online community provides workshops, 1-1 sessions, and an intensive building period over 4 weeks to develop decentralized finance projects, with a submission deadline of November 14th for a demo, codebase, and optional presentation to be reviewed at a finale and prizegiving on November 30th. The document discusses principles of crypto such as being decentralized, self-sovereign, and permissionless, and explores ideas around governance, cross-chain applications, traditional financial products in crypto, custody, onboarding, fiat gateways, gaming, and existing projects.
Encode Club Hackathon
This document provides an introduction to building applications on the Internet Computer. It begins with an overview of the Internet Computer as the third major innovation in blockchain, after cryptocurrencies and smart contracts. It then discusses some key use cases like NFTs, gaming, and social media. It provides explanations of fundamental concepts like canisters, Motoko programming language, and wallets. Finally, it shares tools and resources for developers to get started building on the Internet Computer, including the Motoko SDK, Rust CDK, Motoko Playground, and cycles faucet.
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The document provides an overview of how mining works in Filecoin, including:
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The document is a presentation on Substrate and building blockchains. It introduces Substrate and its benefits like modularity and forkless upgrades. It discusses building a forum blockchain as an example, including storing posts, authors, and contents. It outlines the steps to build the first blockchain using Substrate, launching it and connecting to Polkadot.js. Finally, it discusses next steps like pallets, cryptography, and deploying to production as a parachain on Polkadot.
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This document provides code examples for interacting with the Filecoin bridge using Textile's storage libraries for Ethereum and NEAR. It shows how to initialize storage on each chain, add a deposit to the bridge, store a file, and check the storage status. The Ethereum example imports the ethers library and initializes storage after requesting sign in. For NEAR, it imports the near-api-js library, connects a wallet, and initializes storage after requesting sign in. Both examples store a file, check the status, and include calls to add a deposit to the bridge and get the file ID and CID.
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This document provides an agenda and overview of SubQuery, an open source project that allows developers to index, transform, and query Substrate chain data. It discusses problems with current query speeds and parachain diversity that SubQuery aims to address. The basics of SubQuery are explained, including the components needed and key concepts like the manifest file, GraphQL schema, and mapping files that define how chain data is extracted, transformed, and persisted. Hands-on exercises are proposed to build a sample project. Production infrastructure for hosting SubQuery projects is also introduced.
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This document announces an 8-week Polkadot hackathon hosted by Encode Club to build blockchain projects. Participants will learn about blockchain through workshops and mentorship sessions. They will have the opportunity to build a Polkadot project and be rewarded with prizes. Past Encode hackathon winners include stablecoin, lending, and NFT projects.
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The document describes the Application Research Group (ARG) and their work exploring applications built on Filecoin. ARG has created Estuary, an open source project that makes it easy to store data in the Filecoin network. Estuary provides a hosted node, website, and documentation. It handles storing user data through Filecoin storage deals with high replication for reliability. ARG shares details of Estuary publicly to help others learn and provide transparency into its performance and use of Filecoin miners. They aim to help others run their own Estuary nodes and improve the Filecoin storage experience.
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- Pinata aims to make working with IPFS content easier through features like dedicated gateways that allow for unlimited fast retrieval of pinned data versus potential rate limiting on public gateways.
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Interlay + Encode
1. interBTC is a decentralized bridge that allows users to access Bitcoin (BTC) directly from their wallet on any blockchain like Polkadot.
2. It creates an asset called interBTC that is fully backed 1:1 by BTC reserves held in multi-collateral vaults.
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This document provides an overview of an introductory course on Polkadot. It will take place over 9 months and cover topics like the technical overview of Polkadot, parachains, applications in society, and more. Events will be held weekly on Thursdays at 5:30pm GMT+1 and recorded. The course material will help educate people about Polkadot, a blockchain network that allows specialized blockchains called parachains to communicate and process transactions in parallel for improved scalability. Polkadot uses a relay chain and bridges to connect different chains together and achieve interoperability.
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BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
ここ3000字までしか入らないけどタイトルの方がたくさん文字入ると思います。
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
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Chainlink presentation
- 1. Connecting your Smart Contract to Off-chain Data, Financial Definitive Truth, APIs, and and Provably Random Numbers
- 2. Smart Contracts Fix: - Extreme Centrality - Contract Conflict of Interest - Enforcement - Transparency
- 3. The Oracle Problem 1. THE ORACLE PROBLEM Smart Contracts are unable to connect with external systems, data feeds, APIs, existing payment systems or any other off-chain resources on their own.
- 5. The Smart Contract Connectivity Problem 1. THE ORACLE PROBLEM
- 6. The Smart Contract Connectivity Problem 1. THE ORACLE PROBLEM Blockchain Oracle: Any device that interacts with the off-chain world to provide external data or computation to smart contracts.
- 7. Centralized Oracles are a Point of Failure 1. THE ORACLE PROBLEM Data Sources Centralized Node Decentralized Computation 1 node Thousands of nodes
- 8. Centralized Oracles are a Point of Failure 1. THE ORACLE PROBLEM 1 node Thousands of nodes Data Sources Centralized Node Decentralized Computation
- 9. Centralized Oracles are a Point of Failure 1. THE ORACLE PROBLEM
- 10. 1. THE ORACLE PROBLEM
- 11. Centralized Oracles are a Point of Failure 1. THE ORACLE PROBLEM
- 12. Chainlink’s Defi Solution 2. DeFi
- 14. We’ve already seen attacks 2. DeFi
- 15. Decentralized Finance (DeFi) 3. Untapped Potential
- 16. Supporting the Growth of DeFi 2. HOW CHAINLINK SUPPORTS THE GROWTH OF THE DEFI ECOSYSTEM Synthetix Synthetic assets Value Secured: 2.2 B USD Nexus Mutual Derivatives Value Secured: 300 M USD Set Protocol Commodity Money Value Secured: 90 M USD AAVE Lending and Borrowing Value Secured: 5.7 B USD
- 17. 2. HOW CHAINLINK SUPPORTS THE GROWTH OF THE DEFI ECOSYSTEM https://app.aave.com
- 18. https://docs.chain.link/ 2. HOW CHAINLINK SUPPORTS THE GROWTH OF THE DEFI ECOSYSTEM
- 19. Gaming: Chainlink VRF for truly random numbers
- 20. Gaming: Chainlink VRF for truly random numbers 3. Untapped Potential
- 21. Gaming: Chainlink VRF for truly random numbers 3. Untapped Potential
- 23. Gaming: Chainlink VRF for truly random numbers 3. Untapped Potential
- 24. Chainlink API Calls, any functionality, and more
- 29. Where can I learn?
- 30. docs.chain.link
- 31. Chainlink YouTube Chainlink Engineering Tutorials & Developer Workshops
- 32. Blog.chain.link
- 33. Demo Solidity and Smart Contract Starter Kits!
- 34. Discord Chat http://chn.lk/chainlink-discord Documentation: http://docs.chain.link Out-of-the-box Examples http://chn.lk/dev-examples Stackoverflow Questions https://stackoverflow.com/question s/ask?tags=chainlink Reach out, join the community, and have fun!
- 35. Demo
- 36. Short Edition
- 37. The Oracle Problem 1. THE ORACLE PROBLEM Smart Contracts are unable to connect with external systems, data feeds, APIs, existing payment systems or any other off-chain resources on their own.
- 38. The Smart Contract Connectivity Problem 1. THE ORACLE PROBLEM Blockchain Oracle: Any device that interacts with the off-chain world to provide data to smart contracts. They report the result of that data on-chain so that the blockchain can stay deterministic.
- 39. Price Reference Data 1. THE ORACLE PROBLEM https://feeds.chain.link/
- 40. Decentralized Finance (DeFi) 3. Untapped Potential
- 41. Gaming: Chainlink VRF for truly random numbers 3. Untapped Potential
- 42. Gaming: Chainlink VRF for truly random numbers 3. Untapped Potential
- 43. Discord Chat http://chn.lk/chainlink-discord Documentation: http://docs.chain.link Out-of-the-box Examples http://chn.lk/dev-examples Hackathon Resources http://chn.lk/hack-resources Demos: Tuesday/Thursday 8:30 AM EDT twitch.tv/patrickalphac Sign Up for Office Hours: http://chn.lk/hack-office-hours
- 44. Infographics