Blockchain technology can be applied to space applications like supply chain management, healthcare, and finance. SpaceChain is building a decentralized blockchain infrastructure in space using aerospace engineering and blockchain development expertise. Blockchain uses a distributed ledger of encrypted blocks to securely record transactions without intermediaries. It incentivizes participation and deters hacking through economic incentives like rewards for adding blocks and penalties for malicious acts.
What is a Cryptocurrency?
What is the Blockchain?
Why the Blockchain now?
Lets Sum this Blockchain!
Why the “Blockchain” is next IT revolution you have not heard of..
Lets talk about Careers in the Blockchain!
Blockchain is a distributed database that maintains a growing list of transaction records called blocks. Each block contains a cryptographic hash of the previous block, transaction data, and a timestamp. This forms a chain where blocks are linked in a linear chronological order. New transactions are broadcast to the peer-to-peer network, validated by nodes, and grouped into blocks that are then added to the blockchain through a process called mining which solves a complex math problem. The blockchain is maintained across the decentralized network and no single entity controls it, providing security, transparency, and decentralization.
Blockchain is a distributed ledger that records transactions in blocks of data that are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. This design makes blockchains resistant to modification, as altering any block would require recalculating hashes for the entire chain. Blockchain technology provides a decentralized and secure way to record and share data across a network.
How Blockchain Is Different From Cryptocurrency?Endive Software
Yes, there are some differences, but at the core Blockchain and Cryptocurrency are interconnected. Bitcoin (Cryptocurrency) is the first and most successful application of Blockchain. Initially, they were used interchangeably, but with advancement, some differences can be noticed.
Block chain and Bitcoin. A blockchain is a data structure that makes it possible to create a digital ledger of transactions and share it among a distributed network of computers.
With the recent crypto bubble engulfing the world, you would have come across two prominent words: Blockchain and Cryptocurrency. Well, when it comes to origin and development then cryptocurrency marks the growth of Blockchain technology.
A Quick Start To Blockchain by Seval CaprazSeval Çapraz
Blockchain is one of the most innovative discoveries of the past century.
The first cryptocurrency, Bitcoin, was proposed in 2008 by Satoshi Nakamoto with a white paper.
Blockchain technology allows for the creation of a digital ledger that can record transactions and other data across a decentralized network. Each computer that participates in the blockchain network, called a node, has access to and helps maintain the ledger. The ledger is stored across the entire network and is difficult to corrupt, making blockchain suitable for applications like payments, data sharing, digital voting, and supply chain management. Some advantages include traceability, cost effectiveness, quality assurance through origin tracking, and enabling smart contracts. However, challenges remain around digital signature verification, reaching consensus across the decentralized network, and redundancy compared to centralized databases. Widespread adoption may begin in 2020 if blockchain can prove economically viable beyond experimental programs.
What is a Cryptocurrency?
What is the Blockchain?
Why the Blockchain now?
Lets Sum this Blockchain!
Why the “Blockchain” is next IT revolution you have not heard of..
Lets talk about Careers in the Blockchain!
Blockchain is a distributed database that maintains a growing list of transaction records called blocks. Each block contains a cryptographic hash of the previous block, transaction data, and a timestamp. This forms a chain where blocks are linked in a linear chronological order. New transactions are broadcast to the peer-to-peer network, validated by nodes, and grouped into blocks that are then added to the blockchain through a process called mining which solves a complex math problem. The blockchain is maintained across the decentralized network and no single entity controls it, providing security, transparency, and decentralization.
Blockchain is a distributed ledger that records transactions in blocks of data that are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. This design makes blockchains resistant to modification, as altering any block would require recalculating hashes for the entire chain. Blockchain technology provides a decentralized and secure way to record and share data across a network.
How Blockchain Is Different From Cryptocurrency?Endive Software
Yes, there are some differences, but at the core Blockchain and Cryptocurrency are interconnected. Bitcoin (Cryptocurrency) is the first and most successful application of Blockchain. Initially, they were used interchangeably, but with advancement, some differences can be noticed.
Block chain and Bitcoin. A blockchain is a data structure that makes it possible to create a digital ledger of transactions and share it among a distributed network of computers.
With the recent crypto bubble engulfing the world, you would have come across two prominent words: Blockchain and Cryptocurrency. Well, when it comes to origin and development then cryptocurrency marks the growth of Blockchain technology.
A Quick Start To Blockchain by Seval CaprazSeval Çapraz
Blockchain is one of the most innovative discoveries of the past century.
The first cryptocurrency, Bitcoin, was proposed in 2008 by Satoshi Nakamoto with a white paper.
Blockchain technology allows for the creation of a digital ledger that can record transactions and other data across a decentralized network. Each computer that participates in the blockchain network, called a node, has access to and helps maintain the ledger. The ledger is stored across the entire network and is difficult to corrupt, making blockchain suitable for applications like payments, data sharing, digital voting, and supply chain management. Some advantages include traceability, cost effectiveness, quality assurance through origin tracking, and enabling smart contracts. However, challenges remain around digital signature verification, reaching consensus across the decentralized network, and redundancy compared to centralized databases. Widespread adoption may begin in 2020 if blockchain can prove economically viable beyond experimental programs.
This document provides an overview of blockchain technology. It discusses that blockchain was first introduced in 2008 as a way to facilitate digital transactions without a central authority. Blockchain uses cryptography, a digital ledger, and a consensus mechanism to securely record transactions. The blockchain is made up of blocks that contain cryptographic hashes linking them together. Miners use proof-of-work to verify transactions and are rewarded with cryptocurrency. Once recorded, transactions cannot be altered, providing transparency and security.
Blockchain. Everyone talks about it, but how does it really work?
This talk covers the fundamentals and discusses real world examples of how blockchain is being used to transform healthcare, real estate, humanitarian aid, governance and other domains.
See the original talk at: https://www.facebook.com/thekasbahhub/videos/1875008969491362/
How Blockchain and Cryptocurrency works.Waleed Ahmed
A blockchain is a way of storing data so that cannot be changed anymore. This is called immutability and a very useful feature when dealing with very important data like bank records or transactions.
This presentation will teach you the simplest methodology of how blockchain works.
Blockchain And Cryptocurrency : How Blockchain And Cryptocurrency Relate To E...Blockchain Council
Blockchain Council is a renowned platform providing all the certification and Blockchain courses that will help you make an established career in this field.
Blockchain is a distributed ledger technology that allows for the safe distribution of a ledger across multiple nodes. It works by having each transaction digitally signed and added in a "block" along with a proof of work. This prevents double spending and allows nodes to reach consensus on the transaction history without a centralized authority. Smart contracts enable decentralized applications to run transactions automatically according to the program. However, first generation blockchains face challenges around centralization, scalability, and smart contract quality. New solutions aim to address these through alternative consensus methods, off-chain transactions, and designed smart contract languages.
The document discusses blockchain technology and cryptocurrency. It provides an overview of blockchain components and how it works as a decentralized digital ledger. It also discusses different types of blockchains and examples of blockchain use cases across various sectors. The document then covers cryptocurrency types and the top cryptocurrencies by market cap. It outlines issues with cryptocurrency and factors that affect crypto prices. It also lists some popular cryptocurrency exchanges in India.
Blockchain, cryptography and tokens — NYC Bar presentationPaperchain
Concise version of presentation delivered at the NYC Bar Association.
Overview of blockchains, how cryptography works on blockchains and the difference between cryptocurrencies and tokens.
Blockmason Link is a new tool that allows developers to easily create traditional web-based applications and APIs from smart contracts on blockchains like Ethereum, without requiring any blockchain development experience. It handles tasks like interacting with the blockchain, managing user accounts and transactions, and abstracting away the complexity of blockchain. This allows developers to focus on building applications and enables non-technical users to interact with blockchain applications as easily as regular web/mobile applications. By lowering the barriers to using and developing blockchain applications, Link aims to help drive mass adoption of blockchain technology.
Block Chain & Beyond is a presentation that defines key terms related to blockchain and digital currencies. It discusses problems with traditional online payment protocols like SWIFT, including high fees and slow settlement times. It then introduces blockchain and Bitcoin, explaining how the blockchain solves issues of double spending through cryptography, hash functions, and a consensus protocol where miners are incentivized to confirm accurate transaction records. It also briefly describes another consensus protocol called Ripple that enables real-time foreign exchange transactions through a distributed ledger approach.
Blockchain Ecosystem and Cryptocurrency RegulationsAmir Rafati
A blockchain is a general digital ledger of transactions that are executed on the network, e.g. using Bitcoin to buy a cup of coffee is a transaction.
All users of the network, ‘Nodes’, have a copy of the transaction records and can access them freely, a role previously played by centralized institutions. Therefore, the blockchain network is ‘decentralized’.
Today, blockchain technology doesn't need to be implemented. A word that once was foreign has now earned accolades from individuals across the globe. This technology is being talked about by every business and investor. Blockchain started its journey as an underlying Bitcoin exchange technology, and it has gained so much popularity over the years. Everyone speaks about Blockchain, from students to working professionals; but what makes Blockchain so attractive is that you need to know the concepts of Blockchain technology for this.
Blockchain is a growing list of data blocks that are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. This makes blockchain resistant to modification of the data. The first blockchain was created by Satoshi Nakamoto in 2008 as a public ledger for bitcoin transactions. Blockchain has various applications including cryptocurrencies, financial services, and supply chain management. While it provides benefits of decentralization, security and transparency, blockchain also faces challenges related to scalability, interoperability, regulations and initial costs for banks to implement.
Blockchain: An Introduction, by Ruben Merre NGRAVERuben Merre
Blockchain - An Introduction is an extensive intro to blockchain technology and cryptocurrencies. Ruben Merre, CEO of blockchain hardware wallet tech company Ngrave, uses this slide deck for University lectures, introducing university level college students to the basics and the inner workings of blockchain technology.
14 Jan17- Nullmeets -Blockchain concept decoded by Ninad SarangNinad Sarang
Blockchain is a distributed public ledger that records all Bitcoin transactions in a permanent, verifiable way. It uses cryptography to ensure the integrity and security of each transaction. New transactions are grouped into blocks and added to the blockchain through a process called mining, where miners compete to solve complex math problems. In return for securing the network, miners are rewarded with new Bitcoins. This decentralized system allows for peer-to-peer transactions without an intermediary.
This document provides an overview of blockchain technology. It defines blockchain as a decentralized data structure that allows for a secure, immutable transaction system. The document then briefly outlines the history of blockchain, starting with Satoshi Nakamoto's 2008 paper introducing Bitcoin. It provides a simple technical explanation of blockchain components like hash functions, hash pointers, and blocks. The document also discusses consensus mechanisms like proof-of-work, smart contracts, decentralized applications, and challenges facing blockchain adoption and scalability.
My presentation prepared for the one-day national level workshop on "Blockchain Technologies" organised by the Department of Information Technology, Academy of Maritime Education and Training. The presentation covers the definition, classification, components, structure and working of ethereum and bitcoin blockchains.
How to Create Blockchain Products by Slice.Market CTOProduct School
Main takeaways:
-Intro to blockchain concepts, public/private keys, signing transactions, wallets,
-Product challenges unique to blockchain
-Metamask and other tools that people currently use to interact with the Ethereum blockchain
-Common design and product considerations when making a blockchain product
201811 Bitcoin, Blockchain and the Technology behind CryptocurrenciesPaperchain
Half Moon Seminer presentation for CLE credits.
Goes through the technologies that underly blockchain systems, smart contracts, tokens and their applications across a number of industry verticals.
This document provides an overview of cryptocurrency and the types available. It discusses what cryptocurrency is, how it works using blockchain technology, how value is determined, and common uses. The top 5 cryptocurrencies - Bitcoin, Ethereum, Litecoin, Monero, and Ripple - are then described in terms of their origins, technologies, advantages, and current values. The goal is to educate readers on getting started with cryptocurrencies from a beginner level.
This document provides an overview of blockchain technology and its history. It discusses how blockchain emerged from concepts developed in the early 1990s, and how Bitcoin launched in 2009 helped popularize the use of blockchain. The document then defines blockchain as a distributed ledger of transactions shared across a network of computers, and explains how blockchain works using private/public key cryptography and a distributed network to validate transactions. It also covers different types of consensus protocols like proof-of-work, proof-of-stake, and Byzantine fault tolerance. Finally, it discusses applications of blockchain like smart contracts and supply chain audits.
This document discusses blockchain technology and its potential applications. It begins by explaining how blockchains work and how transactions are recorded in an immutable public ledger. It then discusses the evolution of blockchain from its origins with Bitcoin (Blockchain 1.0) to include smart contracts (Blockchain 2.0) and a wider range of applications beyond finance (Blockchain 3.0). Examples of potential applications are provided across various sectors like government, healthcare, education, and supply chain management. The document concludes by summarizing some existing blockchain-based applications and prototypes.
This document provides an overview of blockchain technology. It discusses that blockchain was first introduced in 2008 as a way to facilitate digital transactions without a central authority. Blockchain uses cryptography, a digital ledger, and a consensus mechanism to securely record transactions. The blockchain is made up of blocks that contain cryptographic hashes linking them together. Miners use proof-of-work to verify transactions and are rewarded with cryptocurrency. Once recorded, transactions cannot be altered, providing transparency and security.
Blockchain. Everyone talks about it, but how does it really work?
This talk covers the fundamentals and discusses real world examples of how blockchain is being used to transform healthcare, real estate, humanitarian aid, governance and other domains.
See the original talk at: https://www.facebook.com/thekasbahhub/videos/1875008969491362/
How Blockchain and Cryptocurrency works.Waleed Ahmed
A blockchain is a way of storing data so that cannot be changed anymore. This is called immutability and a very useful feature when dealing with very important data like bank records or transactions.
This presentation will teach you the simplest methodology of how blockchain works.
Blockchain And Cryptocurrency : How Blockchain And Cryptocurrency Relate To E...Blockchain Council
Blockchain Council is a renowned platform providing all the certification and Blockchain courses that will help you make an established career in this field.
Blockchain is a distributed ledger technology that allows for the safe distribution of a ledger across multiple nodes. It works by having each transaction digitally signed and added in a "block" along with a proof of work. This prevents double spending and allows nodes to reach consensus on the transaction history without a centralized authority. Smart contracts enable decentralized applications to run transactions automatically according to the program. However, first generation blockchains face challenges around centralization, scalability, and smart contract quality. New solutions aim to address these through alternative consensus methods, off-chain transactions, and designed smart contract languages.
The document discusses blockchain technology and cryptocurrency. It provides an overview of blockchain components and how it works as a decentralized digital ledger. It also discusses different types of blockchains and examples of blockchain use cases across various sectors. The document then covers cryptocurrency types and the top cryptocurrencies by market cap. It outlines issues with cryptocurrency and factors that affect crypto prices. It also lists some popular cryptocurrency exchanges in India.
Blockchain, cryptography and tokens — NYC Bar presentationPaperchain
Concise version of presentation delivered at the NYC Bar Association.
Overview of blockchains, how cryptography works on blockchains and the difference between cryptocurrencies and tokens.
Blockmason Link is a new tool that allows developers to easily create traditional web-based applications and APIs from smart contracts on blockchains like Ethereum, without requiring any blockchain development experience. It handles tasks like interacting with the blockchain, managing user accounts and transactions, and abstracting away the complexity of blockchain. This allows developers to focus on building applications and enables non-technical users to interact with blockchain applications as easily as regular web/mobile applications. By lowering the barriers to using and developing blockchain applications, Link aims to help drive mass adoption of blockchain technology.
Block Chain & Beyond is a presentation that defines key terms related to blockchain and digital currencies. It discusses problems with traditional online payment protocols like SWIFT, including high fees and slow settlement times. It then introduces blockchain and Bitcoin, explaining how the blockchain solves issues of double spending through cryptography, hash functions, and a consensus protocol where miners are incentivized to confirm accurate transaction records. It also briefly describes another consensus protocol called Ripple that enables real-time foreign exchange transactions through a distributed ledger approach.
Blockchain Ecosystem and Cryptocurrency RegulationsAmir Rafati
A blockchain is a general digital ledger of transactions that are executed on the network, e.g. using Bitcoin to buy a cup of coffee is a transaction.
All users of the network, ‘Nodes’, have a copy of the transaction records and can access them freely, a role previously played by centralized institutions. Therefore, the blockchain network is ‘decentralized’.
Today, blockchain technology doesn't need to be implemented. A word that once was foreign has now earned accolades from individuals across the globe. This technology is being talked about by every business and investor. Blockchain started its journey as an underlying Bitcoin exchange technology, and it has gained so much popularity over the years. Everyone speaks about Blockchain, from students to working professionals; but what makes Blockchain so attractive is that you need to know the concepts of Blockchain technology for this.
Blockchain is a growing list of data blocks that are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. This makes blockchain resistant to modification of the data. The first blockchain was created by Satoshi Nakamoto in 2008 as a public ledger for bitcoin transactions. Blockchain has various applications including cryptocurrencies, financial services, and supply chain management. While it provides benefits of decentralization, security and transparency, blockchain also faces challenges related to scalability, interoperability, regulations and initial costs for banks to implement.
Blockchain: An Introduction, by Ruben Merre NGRAVERuben Merre
Blockchain - An Introduction is an extensive intro to blockchain technology and cryptocurrencies. Ruben Merre, CEO of blockchain hardware wallet tech company Ngrave, uses this slide deck for University lectures, introducing university level college students to the basics and the inner workings of blockchain technology.
14 Jan17- Nullmeets -Blockchain concept decoded by Ninad SarangNinad Sarang
Blockchain is a distributed public ledger that records all Bitcoin transactions in a permanent, verifiable way. It uses cryptography to ensure the integrity and security of each transaction. New transactions are grouped into blocks and added to the blockchain through a process called mining, where miners compete to solve complex math problems. In return for securing the network, miners are rewarded with new Bitcoins. This decentralized system allows for peer-to-peer transactions without an intermediary.
This document provides an overview of blockchain technology. It defines blockchain as a decentralized data structure that allows for a secure, immutable transaction system. The document then briefly outlines the history of blockchain, starting with Satoshi Nakamoto's 2008 paper introducing Bitcoin. It provides a simple technical explanation of blockchain components like hash functions, hash pointers, and blocks. The document also discusses consensus mechanisms like proof-of-work, smart contracts, decentralized applications, and challenges facing blockchain adoption and scalability.
My presentation prepared for the one-day national level workshop on "Blockchain Technologies" organised by the Department of Information Technology, Academy of Maritime Education and Training. The presentation covers the definition, classification, components, structure and working of ethereum and bitcoin blockchains.
How to Create Blockchain Products by Slice.Market CTOProduct School
Main takeaways:
-Intro to blockchain concepts, public/private keys, signing transactions, wallets,
-Product challenges unique to blockchain
-Metamask and other tools that people currently use to interact with the Ethereum blockchain
-Common design and product considerations when making a blockchain product
201811 Bitcoin, Blockchain and the Technology behind CryptocurrenciesPaperchain
Half Moon Seminer presentation for CLE credits.
Goes through the technologies that underly blockchain systems, smart contracts, tokens and their applications across a number of industry verticals.
This document provides an overview of cryptocurrency and the types available. It discusses what cryptocurrency is, how it works using blockchain technology, how value is determined, and common uses. The top 5 cryptocurrencies - Bitcoin, Ethereum, Litecoin, Monero, and Ripple - are then described in terms of their origins, technologies, advantages, and current values. The goal is to educate readers on getting started with cryptocurrencies from a beginner level.
This document provides an overview of blockchain technology and its history. It discusses how blockchain emerged from concepts developed in the early 1990s, and how Bitcoin launched in 2009 helped popularize the use of blockchain. The document then defines blockchain as a distributed ledger of transactions shared across a network of computers, and explains how blockchain works using private/public key cryptography and a distributed network to validate transactions. It also covers different types of consensus protocols like proof-of-work, proof-of-stake, and Byzantine fault tolerance. Finally, it discusses applications of blockchain like smart contracts and supply chain audits.
This document discusses blockchain technology and its potential applications. It begins by explaining how blockchains work and how transactions are recorded in an immutable public ledger. It then discusses the evolution of blockchain from its origins with Bitcoin (Blockchain 1.0) to include smart contracts (Blockchain 2.0) and a wider range of applications beyond finance (Blockchain 3.0). Examples of potential applications are provided across various sectors like government, healthcare, education, and supply chain management. The document concludes by summarizing some existing blockchain-based applications and prototypes.
chapter 4 Selected Topics in computer.pptxAschalewAyele2
Blockchain is a distributed database that records transactions in blocks that are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. This allows record of transactions to be recorded across decentralized networks and prevents alteration of the record without agreement of the network. Blockchain uses cryptography and consensus algorithms to ensure security and verification of transactions without the need for centralized authorities.
chapter 4 Selected Topics in computer.pptxAschalewAyele2
Blockchain is a distributed database that records transactions in blocks that are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. This allows record of transactions to be recorded across decentralized networks and prevents alteration of the record without agreement of the network. Blockchain uses cryptography and consensus algorithms to ensure security and verification of transactions without the need for centralized authorities.
The document is a project report on developing a blockchain-based banking system. It includes an introduction, background study on blockchain technology concepts like blocks and mining, a detailed design section describing transaction processing and block creation, and an implementation section showing smart contract code for creating tokens and implementing standard ERC20 functionality. The goal is to upgrade existing banking systems to leverage blockchain technology for processing payments in a decentralized manner without a central authority.
The document discusses blockchain technology. It defines blockchain as a distributed database or ledger that stores information across a network of computers. It explains how blockchain works by structuring data into time-stamped blocks that are linked together in a chain. It then covers key aspects of blockchain like decentralization, transparency, security, and applications such as cryptocurrencies, smart contracts, and supply chain management. The benefits are highlighted as improved accuracy, lower costs, decentralization, and efficient transactions.
Sohana Amreen presented on blockchain technology. She explained that blockchain is a distributed, decentralized, transparent and chronological database of transactions stored in blocks. Blockchain uses cryptography to allow transactions to be securely recorded in a public ledger without the need for centralized oversight. She discussed the history of blockchain from Bitcoin's inception in 2008 to current applications beyond cryptocurrency like smart contracts, cloud storage and voting.
A blockchain is a distributed ledger that records transactions across a peer-to-peer network. It uses cryptography to allow participants to interact securely and anonymously to validate transactions without a central authority. The technology began with Bitcoin and enables applications like cryptocurrencies, smart contracts, and decentralized databases. Understanding blockchains requires grasping both technical aspects like distributed databases and consensus algorithms, as well as philosophical concepts like disintermediation.
Blockchain is a distributed ledger that records transactions in blocks of data that are linked using cryptography. Key features include decentralization, transparency, immutability, and auditability. Blocks contain transaction data, a hash of the previous block, and a timestamp. Blockchains use peer-to-peer networks and consensus mechanisms like proof-of-work or proof-of-stake to validate new blocks. Smart contracts allow terms of an agreement to be automatically executed when conditions are met. The first blockchain concept dates to 1991, with Bitcoin's launch in 2009 popularizing the technology which has since grown to include various applications and cryptocurrencies.
A blockchain is a growing list of records, called blocks, which are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. By design, a blockchain is resistant to modification of the data.
Improved Particle Swarm Optimization Based on Blockchain Mechanism for Flexib...BRNSSPublicationHubI
This document summarizes a research article about developing an improved particle swarm optimization algorithm using blockchain for flexible job shop scheduling and online gambling applications. It discusses how blockchain collects data from IoT devices and uses machine learning to analyze the data in real-time. The paper presents a blockchain-based betting application that was developed using Node.js, Web3 API, and Remix IDE. Key aspects of developing and testing the application are described, including user registration, login, and placing bets processes. The conclusion recommends further enhancing the system by fully implementing it on the blockchain for improved security and reliability.
Blockchain is a distributed ledger technology that records transactions in blocks that are linked together using cryptography. The document discusses the structure of blockchain including blocks, chains, nodes, miners, transactions, hash codes, and consensus protocols. It also covers how blockchain works, applications in finance like cross-border payments and stock exchanges, and challenges around scalability, security, privacy, and high energy usage. The author proposes using proof of stake instead of proof of work to help address energy consumption and privacy issues.
Introduction to Blockchain Web3 SessionDSCIITPatna
Blockchain technology has been around since 2008 with the introduction of Bitcoin. It utilizes a decentralized digital ledger called a blockchain, which consists of records called blocks that are linked together in a growing list. Each block contains transaction data as well as a reference to the previous block. This allows transactions to be recorded in a verified and permanent way without the need for a central authority. There are various components that make up a blockchain network including nodes that host copies of the blockchain and wallets that store private and public keys for sending and receiving cryptocurrency. Various consensus mechanisms like proof-of-work and proof-of-stake are used to verify transactions and reach agreement across the decentralized network. Blockchain technology provides advantages like reduced costs and increased
Blockchain Facts_What Is It, How IT Works and How Can It Be Used.pdfHarry977415
An Article detailing what a blockchain is, how it works and how it can be used ,it has some general information Regarding uses , area it is found and information on the pros and cons.
A blockchain is, in the simplest of terms, a time-stamped series of immutable records of data that is managed by a cluster of computers not owned by any single entity. Each of these blocks of data (i.e. block) is secured and bound to each other using cryptographic principles (i.e. chain).
So, what is so special about it and why are we saying that it has industry-disrupting capabilities?
The blockchain network has no central authority — it is the very definition of a democratized system. Since it is a shared and immutable ledger, the information in it is open for anyone and everyone to see. Hence, anything that is built on the blockchain is by its very nature transparent and everyone involved is accountable for their actions.
Gas is a unit used in Ethereum that measures the amount of computational effort required to execute a transaction or smart contract. Every operation on the Ethereum network has an associated gas cost. While gas is used to measure computational work, fees are actually paid in ether using a gas price. The total fee paid is calculated as gas used multiplied by gas price. Gas ensures transactions pay appropriately for their computational requirements and prevents spam on the network. Running out of gas results in transaction failure, while providing too little gas price means a transaction won't be included in a block.
Scaling is one of the most interesting areas of innovation for blockchain. In this survey we took a first pass at a market landscape survey. We would love any edits/suggestions you may nave.
Blockchain technology allows data to be stored and exchanged on a peer-to-peer network in a secure and decentralized manner without intermediaries. It works by validating transactions and adding them as blocks to an immutable blockchain that is shared across all nodes in the network. Blockchains use cryptography to ensure data integrity and prevent alteration of past records. Real-world applications of blockchain include powering cryptocurrencies like Bitcoin, implementing smart contracts, building decentralized applications, and developing government services like in Dubai.
This document discusses blockchain technology and its potential applications. It begins with an introduction to blockchain as a decentralized ledger that allows transactions to be confirmed without an intermediary. It then provides more details on how blockchain works, including how blocks are added in a chronological chain. The document also discusses how blockchain could be used in various industries like finance, providing examples of banks exploring blockchain applications. It concludes that blockchain allows secure transactions in a transparent way without third parties by recording all deals in a public ledger.
A blockchain is a distributed ledger maintained by a peer-to-peer network that records transactions in digitally signed blocks. The document discusses the technical, business, and legal definitions of blockchains, comparing their transaction processing capabilities to existing networks like Visa and PayPal. It notes that while public blockchains like Bitcoin currently have lower transaction speeds than these networks, improvements in technology could significantly increase speeds over time for both public and private blockchains.
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdfMalak Abu Hammad
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
GraphRAG for Life Science to increase LLM accuracyTomaz Bratanic
GraphRAG for life science domain, where you retriever information from biomedical knowledge graphs using LLMs to increase the accuracy and performance of generated answers
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Infrastructure Challenges in Scaling RAG with Custom AI modelsZilliz
Building Retrieval-Augmented Generation (RAG) systems with open-source and custom AI models is a complex task. This talk explores the challenges in productionizing RAG systems, including retrieval performance, response synthesis, and evaluation. We’ll discuss how to leverage open-source models like text embeddings, language models, and custom fine-tuned models to enhance RAG performance. Additionally, we’ll cover how BentoML can help orchestrate and scale these AI components efficiently, ensuring seamless deployment and management of RAG systems in the cloud.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
Full-RAG: A modern architecture for hyper-personalizationZilliz
Mike Del Balso, CEO & Co-Founder at Tecton, presents "Full RAG," a novel approach to AI recommendation systems, aiming to push beyond the limitations of traditional models through a deep integration of contextual insights and real-time data, leveraging the Retrieval-Augmented Generation architecture. This talk will outline Full RAG's potential to significantly enhance personalization, address engineering challenges such as data management and model training, and introduce data enrichment with reranking as a key solution. Attendees will gain crucial insights into the importance of hyperpersonalization in AI, the capabilities of Full RAG for advanced personalization, and strategies for managing complex data integrations for deploying cutting-edge AI solutions.
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
Programming Foundation Models with DSPy - Meetup SlidesZilliz
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
3. #NewSpaceEconomy
The Blockchain market expected to grow from USD 1.2 billion in 2018 to USD
23.3 billion by 2023, at a Compound Annual Growth Rate (CAGR) of 80.2%
during 2018–2023 (source MarketandMarkets, 2018).
Market Value
4. #NewSpaceEconomy
Building a blockchain infrastructure in space
Aerospace Engineering Mission Management
Blockchain
Development
Innovation and R&D
Space industry know-
how
Law, Regulatory
Compliance &
International Relations
Economics, Game
Theory & Token Design
Product Development
Blockchain + Space
5. #NewSpaceEconomy
Begun with the 2008 financial markets crash
Blockchain technology is often identified with its first and most successful use case
to date: Bitcoin.
It all started with the 2008 financial markets crash, which prompted a person (or
group of people) working under the pseudonym of Satoshi Nakamoto, to publish a
Whitepaper explaining how to build a digital currency that would not need any
intermediary as the arbitrator for transaction settlement.
In other words, Satoshi created an alternative to a system where banks were trusted
intermediary and demonstrably a point of failure for the entire financial system and
the global economy.
Bitcoin is an application, or use case, of the underlying technology: Blockchain.
6. #NewSpaceEconomy
We can think of blockchain as a chain of blocks, where we are actually talking
about digital information (the “block”) stored in a public database or ledger (the
“chain”).
“Blocks” on the blockchain are made up of digital pieces of information (which
are always present):
1. A time stamp
2. A “digital signature,” very much like a username
3. A block ‘name’ called a Hash
4. The Merkle Root, or the Hash of all the previous blocks since the
beginning of the chain
Essential components
8. #NewSpaceEconomy
When a block stores new data it is added to the blockchain. These are the
necessary conditions for it to happen successfully:
1.A transaction must occur
2.The transaction must be verified (time, participants, amount)
3.The transaction must be stored in a block
4.The block must be given a hash
When a block is added to a public blockchain (such as Bitcoin and Ethereum),
it becomes publicly available for anyone to view (there are also private
blockchains which we will cover later).
In other words, the transaction is broadcasted to the network.
How does it work?
9. #NewSpaceEconomy
Each computer in the blockchain network has its own copy of the blockchain
(sometimes a full copy, other times a ‘light’ version of it depending on its size).
Each computer is called a node.
With blockchain, there isn’t a single, definitive account of events that can be
manipulated. Instead, a hacker would need to manipulate every copy of the
blockchain on the network.
This is what is meant by blockchain being a "distributed" ledger.
Why is the ledger “distributed”?
10. #NewSpaceEconomy
New blocks are always stored linearly and chronologically. That is, they are always
added to the “end” of the blockchain. If you take a look at Bitcoin’s blockchain, you’ll
see that each block has a position on the chain, called a “height.” As of January
2020, the block’s height had topped 615,400.
After a block has been added to the end of the blockchain, it is very difficult to go
back and alter the contents of the block. That’s because each block contains its
own hash, along with the hash of the block before it. Hash codes are created by a
math function that turns digital information into a string of numbers and letters. If
that information is edited in any way, the hash code changes as well.
In order to change a single block, then, a hacker would need to change every single
block after it on the blockchain.
Why is blockchain so secure?
12. #NewSpaceEconomy
The decision over whether a block is added to the chain is not taken by any
single central entity, a trusted party that functions as a validator but it is taken
in a de-centralised way.
The block is added only if the entire network of nodes come to a consensus.
Blockchain is also referred to as a trustless system: parties don’t need to trust
one another, they can rely on mathematical tests to validate the transactions.
Why is blockchain “decentralised”?
13. #NewSpaceEconomy
There are different ways to come to this consensus among the nodes, and
this is a core difference among the different blockchains (for example,
Ethereum and Bitcoin).
The tests, called “consensus models,” require users to “prove” themselves
before they can participate in a blockchain network.
The two most famous examples are the “Proof of Work” (PoW) and “Proof of
Stake” (PoS).
Why is blockchain “decentralised”?
14. #NewSpaceEconomy
In the Proof of Work system, computers must “prove” that they have done
“work” by solving a complex computational math problem.
In Proof of Stake instead the node that creates the next block is chosen based
on how much they have ‘staked’, or very simply on the number of tokens that
the node owner hold for the particular blockchain they are attempting to add a
block to.
Power consumption is a core factor when designing blockchain solutions in
space.
Consensus models
15. #NewSpaceEconomy
“In short, because it assumes everybody’s a crook,
yet it still gets them to follow the rules.”
Morgen E. Peck
1.
In short, why can we trust a blockchain?
16. #NewSpaceEconomy
The core difference between Distributed Ledger Technology (DLT) and
Blockchain Technology consists of the inclusion of economic layers in the
latter, made of digital assets with built-in design to become an incentive for
good behaviour on the network, and punishment for malicious one.
This is commonly done by applying Game Theory, a field that allows to
understand why groups of individuals act in the way they do in the search for
the fulfilment of their personal goals.
Incentives and Punishments
17. #NewSpaceEconomy
To take an example from Bitcoin, the reason that the miners mine new blocks is
because they are incentivized to do so by receiving a monetary reward in
bitcoins every time they do so.
Equally, without (monetary) punishment or deterrent, there would be no security
within a blockchain.
In simple terms, if it was not unprofitable to hack, a blockchain would be
hackable.
Incentives and Punishments
18. #NewSpaceEconomy
Economic layers means digital assets associated with value that can be
exchanged and/or stored.
If the digital asset is (primarily) used to obtain access to and perform a specific
value exchange within a platform (similarly to how we use a token at a fun fair
to go to the rides within it), then we have a utility token.
If the monetary value can store value and be exchanged similarly to how a
traditional currency would be (referred to as ‘fiat’ money), then we have a
security token or a crypto-currency.
Types of Digital Assets
19. #NewSpaceEconomy
A closed platform for space infrastructure would need a digital asset to:
1.provide incentives and punishments to keep itself secure,
2.as a way to ensure its participants could access it, and
3.to exchange value within it (for example, data or computational power
across satellites).
Digital Assets in Space
20. #NewSpaceEconomy
Blockchain properties at a glance
Automation
Machine to Machine
Decentralisation
Trustlessness
Validity
Continual system
self & cross checking
Cryptography
PKI
Permissionless
(Like the Internet)
Immutability
Append-only
Uniqueness
No double spending
Properties of a Blockchain
Authentication
21. #NewSpaceEconomy
Categorising Blockchains
Public Consortium Private
Example Ethereum, Bitcoin Libra JP Morgan Chase
Description Decentralized,
permissionless, with built-in
economic incentives
Permissioned, partly private
and semi-decentralized
Centralized but distributed
Access No permission required Members only, who could be
co-founders
Qualified users via strict
approval
Typical Implementation As a public blockchain
application
Via a private blockchain
implementation
One company launches and
uses it internally
Innovation Target New business models Processes within existing
relationships
Supporting existing models or
launching new services
Blockchain Governance Public consensus Equal weight to all
participants
Controlled by a single owner
Number of users/nodes Hundred of
thousands/Millions
Dozens to few hundreds One, with varying number of
access points
22. #NewSpaceEconomy
Categorising Blockchains
SpaceChain Foundation’s Decentralised asdasd Infrastructure
SpaceChain Foundation’s Decentralised Satellite Infrastructure
Public Consortium Private
Example Ethereum, Bitcoin Libra JP Morgan Chase
Description Decentralized,
permissionless, with built-in
economic incentives
Permissioned, partly private
and semi-decentralized
Centralized but distributed
Access No permission required Members only, who could be
co-founders
Qualified users via strict
approval
Typical Implementation As a public blockchain
application
Via a private blockchain
implementation
One company launches and
uses it internally
Innovation Target New business models Processes within existing
relationships
Supporting existing models or
launching new services
Blockchain Governance Public consensus Equal weight to all
participants
Controlled by a single owner
Number of users/nodes Hundred of
thousands/Millions
Dozens to few hundreds One, with varying number of
access points
23. #NewSpaceEconomy
Blockchain in Space
SpaceChain Foundation’s Decentralised asdasd Infrastructure
Component Ground Space
Disk usage (Nearly) Unlimited & fast Lower powered devices
Power consumption 100% utilization for as long as needed
(limited by stability/thermal concerns)
Power is a scarce resource
Data speed,
bandwidth & latency
Fast Depends on satellite availability
Latency 0 For non-critical things, can be much higher
Upgradability Reasonably frequent Much longer than on ground
Consensus model Any PoW totally unfeasible. If wanting full in orbit (full
node plus mining), PoS good choice. Others can
be explored
Nodes Any Light nodes (bitcoin SPV, ethereum style light
sync, etc). If not fully validating nodes, more
flexibility