This document provides an introduction to blockchain fundamentals and the Provide platform. It defines blockchain as a decentralized, distributed digital ledger that records transactions across many computers in an incorruptible manner. It explains key blockchain concepts like hash functions, digital signatures, elliptic curve cryptography, decentralized networks, proof of work, transactions, and preventing double spends. It positions Provide as a turnkey blockchain platform that allows existing teams and technologies to leverage distributed ledger technology without typical barriers to entry, providing scalable transaction throughput and fast time to value adoption.
Blockchain fundamentals based on bas w_v1.1.pptxHenk van Cann
The knowledge of Blockchain Fundamentals empowers you to decide for yourself what is a pointless blockchain application and what not. What is a safe crypto currency and what not. How to handle keys; the do's and don'ts. You need to thoroughly understand the innovative technology you use. Blockchain is currently in its infancy and is rough gemstone to many people; ready to be polished.
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 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.
What is a Cryptocurrency?
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Lets Sum this Blockchain!
Why the “Blockchain” is next IT revolution you have not heard of..
Lets talk about Careers in the Blockchain!
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This presentation will teach you the simplest methodology of how blockchain works.
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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.
Blockchain fundamentals based on bas w_v1.1.pptxHenk van Cann
The knowledge of Blockchain Fundamentals empowers you to decide for yourself what is a pointless blockchain application and what not. What is a safe crypto currency and what not. How to handle keys; the do's and don'ts. You need to thoroughly understand the innovative technology you use. Blockchain is currently in its infancy and is rough gemstone to many people; ready to be polished.
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 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.
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!
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.
Decentralized: Blockchain & Cryptocurrency Laws in CanadaAlexander Davis
Blockchain technologies and cryptocurrencies are becoming more commonplace in Canada. This presentation presents an informational-purposes only overview of some of the laws governing them.
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.
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.
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.
Understand Crypto currencies, where to buy them, how to secure owned currencies and investment options. Presentation will give ideas to start investigating and exploration.
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.
There are new and emerging opportunities for organisations in all sectors to create and deliver compelling services for their customers using the power of disruptive innovation. As organisations formulate their plans for the coming months, this paper aims to help business and public sector leaders understand the cultural and organisational challenges that are inevitably brought by the use of blockchain technologies, and provides them with the insights they need to overcome them.
it contains the basics of the blockchain
what miners do
what is the importance of block and how it works
different versions of the blockchain
merkle root tree
hashing
consensus algorithms which are used in the blockchain
The presentation will give the basic idea about what is blockchain technology, it's architecture, main features, types of blockchain network and other things that will make your fundamentals clear.
Discussed about the Blockchain and how it works
Also the advantages of Blockchain over centralized system and some drawbacks are also mentioned.
Discussion on bitcoin and Cryptocurrency
Creating our own cryptocurrency for startups.
Snapshots are attached.
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/
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.
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.
Understand Crypto currencies, where to buy them, how to secure owned currencies and investment options. Presentation will give ideas to start investigating and exploration.
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.
There are new and emerging opportunities for organisations in all sectors to create and deliver compelling services for their customers using the power of disruptive innovation. As organisations formulate their plans for the coming months, this paper aims to help business and public sector leaders understand the cultural and organisational challenges that are inevitably brought by the use of blockchain technologies, and provides them with the insights they need to overcome them.
it contains the basics of the blockchain
what miners do
what is the importance of block and how it works
different versions of the blockchain
merkle root tree
hashing
consensus algorithms which are used in the blockchain
The presentation will give the basic idea about what is blockchain technology, it's architecture, main features, types of blockchain network and other things that will make your fundamentals clear.
Discussed about the Blockchain and how it works
Also the advantages of Blockchain over centralized system and some drawbacks are also mentioned.
Discussion on bitcoin and Cryptocurrency
Creating our own cryptocurrency for startups.
Snapshots are attached.
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/
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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’.
Blockchain general presentation nov 2017 v engDavid Vangulick
These slides are used to introduce the concept of blockchain and how this technology can be used for peer to peer energy exchange linked with the wholesale energy market
The speaker share his vision on the prospects of employing the technology for practical tasks. He presented basics of the blockchain architecture with case studies of JavaScript blockchain implementation using Node.js.
This presentation by Valerii Radchenko (Senior Software Engineer, Consultant, GlobalLogic, Kharkiv) was delivered at GlobalLogic Kharkiv JS TechTalk #2 on August 17, 2018.
The project deals about how blockchain works, proof-of-work and merkle tree hash function. The project also tries to explain how the bitcoin uses ECDSA algorithmt power the cryptography.
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Prosigns: Transforming Business with Tailored Technology SolutionsProsigns
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Custom Software Development: Prosigns specializes in creating bespoke software solutions that cater to your unique business needs. Our team of experts works closely with you to understand your requirements and deliver tailor-made software that enhances efficiency and drives growth.
Web and Mobile App Development: From responsive websites to intuitive mobile applications, Prosigns develops cutting-edge solutions that engage users and deliver seamless experiences across devices.
AI & ML Solutions: Harnessing the power of Artificial Intelligence and Machine Learning, Prosigns provides smart solutions that automate processes, provide valuable insights, and drive informed decision-making.
Blockchain Integration: Prosigns offers comprehensive blockchain solutions, including development, integration, and consulting services, enabling businesses to leverage blockchain technology for enhanced security, transparency, and efficiency.
DevOps Services: Prosigns' DevOps services streamline development and operations processes, ensuring faster and more reliable software delivery through automation and continuous integration.
Microsoft Dynamics 365 Support: Prosigns provides comprehensive support and maintenance services for Microsoft Dynamics 365, ensuring your system is always up-to-date, secure, and running smoothly.
Learn how our collaborative approach and dedication to excellence help businesses achieve their goals and stay ahead in today's digital landscape. From concept to deployment, Prosigns is your trusted partner for transforming ideas into reality and unlocking the full potential of your business.
Join us on a journey of innovation and growth. Let's partner for success with Prosigns.
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Your Digital Assistant.
Making complex approach simple. Straightforward process saves time. No more waiting to connect with people that matter to you. Safety first is not a cliché - Securely protect information in cloud storage to prevent any third party from accessing data.
Would you rather make your visitors feel burdened by making them wait? Or choose VizMan for a stress-free experience? VizMan is an automated visitor management system that works for any industries not limited to factories, societies, government institutes, and warehouses. A new age contactless way of logging information of visitors, employees, packages, and vehicles. VizMan is a digital logbook so it deters unnecessary use of paper or space since there is no requirement of bundles of registers that is left to collect dust in a corner of a room. Visitor’s essential details, helps in scheduling meetings for visitors and employees, and assists in supervising the attendance of the employees. With VizMan, visitors don’t need to wait for hours in long queues. VizMan handles visitors with the value they deserve because we know time is important to you.
Feasible Features
One Subscription, Four Modules – Admin, Employee, Receptionist, and Gatekeeper ensures confidentiality and prevents data from being manipulated
User Friendly – can be easily used on Android, iOS, and Web Interface
Multiple Accessibility – Log in through any device from any place at any time
One app for all industries – a Visitor Management System that works for any organisation.
Stress-free Sign-up
Visitor is registered and checked-in by the Receptionist
Host gets a notification, where they opt to Approve the meeting
Host notifies the Receptionist of the end of the meeting
Visitor is checked-out by the Receptionist
Host enters notes and remarks of the meeting
Customizable Components
Scheduling Meetings – Host can invite visitors for meetings and also approve, reject and reschedule meetings
Single/Bulk invites – Invitations can be sent individually to a visitor or collectively to many visitors
VIP Visitors – Additional security of data for VIP visitors to avoid misuse of information
Courier Management – Keeps a check on deliveries like commodities being delivered in and out of establishments
Alerts & Notifications – Get notified on SMS, email, and application
Parking Management – Manage availability of parking space
Individual log-in – Every user has their own log-in id
Visitor/Meeting Analytics – Evaluate notes and remarks of the meeting stored in the system
Visitor Management System is a secure and user friendly database manager that records, filters, tracks the visitors to your organization.
"Secure Your Premises with VizMan (VMS) – Get It Now"
Code reviews are vital for ensuring good code quality. They serve as one of our last lines of defense against bugs and subpar code reaching production.
Yet, they often turn into annoying tasks riddled with frustration, hostility, unclear feedback and lack of standards. How can we improve this crucial process?
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- The Art of Effective Code Reviews
- Streamlining the Review Process
- Elevating Reviews with Automated Tools
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In fact, according to a report by Statista, the number of React Native developers has been steadily increasing over the years, reaching an estimated 1.9 million by the end of 2024. This means that the demand for this framework in the job market has been growing making it a valuable skill.
But what makes React Native so popular for mobile application development? It offers excellent cross-platform capabilities among other benefits. This way, with React Native, developers can write code once and run it on both iOS and Android devices thus saving time and resources leading to shorter development cycles hence faster time-to-market for your app.
Let’s take the example of a startup, which wanted to release their app on both iOS and Android at once. Through the use of React Native they managed to create an app and bring it into the market within a very short period. This helped them gain an advantage over their competitors because they had access to a large user base who were able to generate revenue quickly for them.
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Event sourcing, which records state changes as immutable events, provided robust auditing and "time travel" debugging for Wix Stores' microservices. Despite its benefits, the complexity it introduced in state management slowed development. Wix responded by adopting a simpler, unified CRUD model. This talk will explore the challenges of event sourcing and the advantages of Wix's new "CRUD on steroids" approach, which streamlines API integration and domain event management while preserving data integrity and system resilience.
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Multiple Your Crypto Portfolio with the Innovative Features of Advanced Crypt...Hivelance Technology
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The U.S. Geological Survey (USGS) has made substantial investments in meeting evolving scientific, technical, and policy driven demands on storing, managing, and delivering data. As these demands continue to grow in complexity and scale, the USGS must continue to explore innovative solutions to improve its management, curation, sharing, delivering, and preservation approaches for large-scale research data. Supporting these needs, the USGS has partnered with the University of Chicago-Globus to research and develop advanced repository components and workflows leveraging its current investment in Globus. The primary outcome of this partnership includes the development of a prototype enterprise repository, driven by USGS Data Release requirements, through exploration and implementation of the entire suite of the Globus platform offerings, including Globus Flow, Globus Auth, Globus Transfer, and Globus Search. This presentation will provide insights into this research partnership, introduce the unique requirements and challenges being addressed and provide relevant project progress.
Experience our free, in-depth three-part Tendenci Platform Corporate Membership Management workshop series! In Session 1 on May 14th, 2024, we began with an Introduction and Setup, mastering the configuration of your Corporate Membership Module settings to establish membership types, applications, and more. Then, on May 16th, 2024, in Session 2, we focused on binding individual members to a Corporate Membership and Corporate Reps, teaching you how to add individual members and assign Corporate Representatives to manage dues, renewals, and associated members. Finally, on May 28th, 2024, in Session 3, we covered questions and concerns, addressing any queries or issues you may have.
For more Tendenci AMS events, check out www.tendenci.com/events
Globus Connect Server Deep Dive - GlobusWorld 2024Globus
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Designing for Privacy in Amazon Web ServicesKrzysztofKkol1
Data privacy is one of the most critical issues that businesses face. This presentation shares insights on the principles and best practices for ensuring the resilience and security of your workload.
Drawing on a real-life project from the HR industry, the various challenges will be demonstrated: data protection, self-healing, business continuity, security, and transparency of data processing. This systematized approach allowed to create a secure AWS cloud infrastructure that not only met strict compliance rules but also exceeded the client's expectations.
Unleash Unlimited Potential with One-Time Purchase
BoxLang is more than just a language; it's a community. By choosing a Visionary License, you're not just investing in your success, you're actively contributing to the ongoing development and support of BoxLang.
Listen to the keynote address and hear about the latest developments from Rachana Ananthakrishnan and Ian Foster who review the updates to the Globus Platform and Service, and the relevance of Globus to the scientific community as an automation platform to accelerate scientific discovery.
Software Engineering, Software Consulting, Tech Lead.
Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Security,
Spring Transaction, Spring MVC,
Log4j, REST/SOAP WEB-SERVICES.
2. A blockchain is a decentralized, distributed and
incorruptible digital ledger that is used to record
transactions across many computers
What is Blockchain?
3. • Distributed network of computers (nodes)
• where each node contains a chain-of-blocks
• where each block contains a ledger with a list of transactions
• where each transaction is incorruptible (i.e. cryptographically secure)
& is linked to the previous transactions for the resource it is
representing.
• Blockchain is an immutable, sequential chain of records called Blocks.
• Blocks contain transactions, files or any data you like
• Blocks are chained together using hashes
Blockchain Terminology
4. • Achieves this by using 3 concepts:
• 1. Hash Functions (H(x)): A function which is used to convert a random
set of input to an output of a fixed size.
• For any input x, H(x) is the value of the hash function.
Incorruptible “crypto” of cryptocurrency
5. • 2. Digital Signatures: Digital signatures are like our normal
signatures in digital form. They need to have this basic property:
• Only you can sign BUT anyone can verify.
• Uses Private Key to sign and Public key to verify
• Bitcoin uses (Elliptical Curve Digital Signature Algorithm) ECDSA for
digital signatures.
Digital Signatures
6. • Public key encryption technique to create faster, smaller and efficient
cryptographic keys.
• Used for encrypting public keys
• Relatively easy to verify, very difficult to traverse back to obtain
critical private data
• Bitcoin, Ethereum etc. use, secp256k1 (y2
= x3
+ 7)
Elliptic-curve Cryptography (ECC)
7. • 3. Hash Pointers
• Hash pointer is another good data structure that is leveraged in the
blockchain
Incorruptible (cont.)
9. • Block 1 (from the left) contains the data and a hash-pointer to the
previous block. Block 2 contains a pointer and the hash of the first block
and also its data.
• Key point is that hash is the hash of data and the hash of previous block
combined.
H(this-block) = H(H(previous-block) + data-in-this-block)
Incorruptible (cont.)
10. • Effectively, altering any unit of information on the
blockchain would mean using a huge amount of
computing power to override the entire network.
And any block can validate whether this
transaction is valid or not by following all the
previous blocks in the chain.
Incorruptible (cont.)
11. • Better data structure to avoid traversal of all blocks
• The one used by Bitcoin and Ethereum is known as Merkle Tree.
Merkle Tree
12. The idea here is to quickly validate a transaction by going from root to
leaf rather than traversing all the blocks linearly
Merkle Tree (cont.)
13. • A basic Peer to Peer network
• Everybody is responsible for keeping the entire set of data and
keeping checks on each other
• Consensus among nodes is used to keep the distributed ledger
in-tact, using incentives and Proof of work
Decentralized & Distributed Ledger
14. • Addition of each block (ie transaction(s)) and creation of coin is
managed by computational activity called “Proof of Work”
• Whenever a new block is added by an honest computer, it gets
reward or coin, incentivizing the miner
• It is similar to mining gold etc., except CPU time and electricity is
expended
• A computer only gets paid if the block ends up in the longest-chain
• There is additional Transactional fee to whoever creates a block and
puts the transaction
Incentives & Proof of Work
15. • The goal of PoW is to discover a number which solves a problem
• The number must be difficult to find but easy to
verify—computationally speaking—by anyone on the network. This is
the core idea behind Proof of Work.
• We vary the string by adding an integer value to the end called
a nonce and incrementing it each time until the hash (SHA-256) starts
with “0000”
Nonce
16. • For eg: with “Hello world” we keep adding the number and hash it until it starts with “0000”, as we can see difficulty keeps
going up until attempt 4251.
• Attempt1 => "Hello, world!0" => 1312af178c253f84028d480a6adc1e25e81caa44c749ec81976192e2ec934c64
• Attempt2 => "Hello, world!1" => e9afc424b79e4f6ab42d99c81156d3a17228d6e1eef4139be78e948a9332a7d8
• Attempt3 => "Hello, world!2" => ae37343a357a8297591625e7134cbea22f5928be8ca2a32aa475cf05fd4266b7
...
...
...
...
...
• Attempt4249 => "Hello, world!4248" => 6e110d98b388e77e9c6f042ac6b497cec46660deef75a55ebc7cfdf65cc0b965
• Attempt4250 => "Hello, world!4249" => c004190b822f1669cac8dc37e761cb73652e7832fb814565702245cf26ebb9e6
• Attempt4251 => "Hello, world!4250" => 0000c3af42fc31103f1fdc0151fa747ff87349a4714df7cc52ea464e12dcd4e9
Nonce (cont.)
17. Transactions
• In blockchain, every coin (or entity) is defined as chain of digital
signatures
• Each owner digitally signs the hash of previous transaction and the
public key.
• A simple transaction would look like
18. • This process continues to verify the chain of ownership (end-to-end)
Transactions
19. • Verify that the owner did not spend the same coin at two different
entities, ie double-spend
• Nodes always consider the longest-chain to be the correct one and
will keep working on extending it
Double-spend & Longest Chain
20. • New transactions are broadcast to all nodes.
• Each node collects new transactions into a block.
• Each node works on finding a “difficult” proof-of-work for its block.
• When a node finds a proof-of-work, it broadcasts the block to all
nodes (and gets paid)
Conclusion
21. • Nodes accept the block only if all transactions in it are valid and not
already spent.
• Nodes express their acceptance of the block by working on creating
the next block in the chain, using the hash of the accepted block as
the previous hash.
Conclusion (contd.)
24. 24
Provide is the blockchain acceleration platform.
Have you heard about ?
25. 25
Vision
In 2008, was founded to give developers an easy way to interact with cell phones.
gives organizations an easy way to interact with blockchain.
26. 26
Solution
● Turnkey Networks
● End-to-end platform with automated provisioning of private and permissioned blockchain networks
● Chain- and protocol-agnostic platform; no risky bet on any given protocol or public blockchain
● Your Existing Ecosystem
● Turnkey blockchain platform that enables your existing teams, technologies and approved vendors to
leverage DLT and participate in the Fourth Industrial Revolution without typical barriers to entry
● Enterprise-grade Scalability
● Scalable transaction throughput capable of reaching millions of tx/sec, even when the underlying
blockchain network is slow
27. 27
Provide delivers the fastest time to value when it comes to adopting DLT
Hiring a large team of expensive blockchain experts is no longer a barrier to entry
Hybrid blockchain platform built in the spirit of hybrid cloud-- familiar to enterprise!
Value