This document provides an introduction and overview of blockchain technology and its potential applications in the insurance industry. It begins with an agenda that outlines how blockchain works, exploring blockchain networks and smart contracts. It then discusses possible decentralized application scenarios for the insurance industry, including a hands-on example of a flight delay insurance app running on blockchain. The document provides background on blockchain, explaining how it evolved from centralized and distributed systems to achieve consensus without a central authority through the use of cryptography, hashes, and incentive mechanisms like proof-of-work.
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.
This presentation is about blockchain.
When Thomas Edison invented the electric lamp in 1879, he did not make a market analysis. The market did not have an identified need for a lamp but for light. This is a kind of disruptive original ideas.
Satoshi Nakamoto (a person or a group) did not do a market analysis neither . The blockchain was born after the financial crisis of 2008 as people lost trust in banks.
Satoshi Nakamoto introduced a new model of trust based on cryptographic proof in a decentralised & distributed ledger.
What is bloackchain technology ? Why blockchain is disruptive? And what are the main blockchain technologies ?
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.
Cryptocurrency Alliance Super PAC-The Global Emergence of Cryptocurrencies an...Casey Botticello
The document is a presentation by Casey Botticello, president of the Cryptocurrency Alliance Super PAC, on the global emergence of cryptocurrencies and blockchain technology. It provides an overview of cryptocurrencies and blockchain, discusses how Bitcoin and other cryptocurrencies were developed, and outlines some of the international adoption and regulation of cryptocurrency. It also describes the Cryptocurrency Alliance Super PAC's strategy of education, political advocacy, and countering propaganda regarding cryptocurrencies.
This project was directed by Professor David Lee Kuo Chuen. It presents some aspects of Blockchain including introduction, applicable areas, current situation in China, Ethereum, Factom, and future perspectives.
Cryptocurrencies are classified as a subset of digital currencies and are also classified as a subset of alternative currencies and virtual currencies.
Blockchain Technology And CryptocurrencyEno Bassey
A brief presenation about blockchain and understand cryptocurrency. Find out what it is and why you need to know about it. How you can get involved and how it may change the world as we know it.
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.
This presentation is about blockchain.
When Thomas Edison invented the electric lamp in 1879, he did not make a market analysis. The market did not have an identified need for a lamp but for light. This is a kind of disruptive original ideas.
Satoshi Nakamoto (a person or a group) did not do a market analysis neither . The blockchain was born after the financial crisis of 2008 as people lost trust in banks.
Satoshi Nakamoto introduced a new model of trust based on cryptographic proof in a decentralised & distributed ledger.
What is bloackchain technology ? Why blockchain is disruptive? And what are the main blockchain technologies ?
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.
Cryptocurrency Alliance Super PAC-The Global Emergence of Cryptocurrencies an...Casey Botticello
The document is a presentation by Casey Botticello, president of the Cryptocurrency Alliance Super PAC, on the global emergence of cryptocurrencies and blockchain technology. It provides an overview of cryptocurrencies and blockchain, discusses how Bitcoin and other cryptocurrencies were developed, and outlines some of the international adoption and regulation of cryptocurrency. It also describes the Cryptocurrency Alliance Super PAC's strategy of education, political advocacy, and countering propaganda regarding cryptocurrencies.
This project was directed by Professor David Lee Kuo Chuen. It presents some aspects of Blockchain including introduction, applicable areas, current situation in China, Ethereum, Factom, and future perspectives.
Cryptocurrencies are classified as a subset of digital currencies and are also classified as a subset of alternative currencies and virtual currencies.
Blockchain Technology And CryptocurrencyEno Bassey
A brief presenation about blockchain and understand cryptocurrency. Find out what it is and why you need to know about it. How you can get involved and how it may change the world as we know it.
IRJET- Transaction based Block Chain CryptocurrencyIRJET Journal
This document proposes a transaction-based blockchain cryptocurrency. It aims to build a transaction-based blockchain architecture to discover cryptocurrencies in a decentralized way. The proposed system would overcome mining transactions by having nodes store the ledger, allowing node-to-node transactions to be monitored. Transactions would be sent through an encrypted channel using elliptic curve cryptography. The system would run locally and provide security, acting as a proof of concept for building blockchain applications.
My talk at IDNOG5 (ID Network Operators Group) Conference, Jakarta, 2018, covers a short overview of fintech, cryptocurrency & blockchain + a networking perspective/use cases at the end
The document discusses blockchain technology and its potential applications in education. It begins with definitions of blockchain and how the technology enables decentralized and transparent recording of transactions. It then covers how blockchains work and their advantages, such as immutability and disintermediation. The document outlines several blockchain initiatives and applications in education, including providing verifiable credentials and certificates. It argues that more blockchain learning is needed given growing career opportunities in the sector.
Presentation for Asian Financial Markets and Institutions, October 2016, HKU MBA Program. Covers basics of blockchain and distributed ledgers and discusses some current and potential applications.
Blockchain technology has the potential to disrupt and enable innovation in many industries. It allows for decentralized networks that do not require intermediaries, improving security, transparency and reducing costs. The document discusses potential applications of blockchain in various sectors such as financial services, banking, insurance, communications, voting, internet of things and more. It provides examples of companies already experimenting with and implementing blockchain solutions.
Risk & challenges in virtual currencies - Cocon 2013Harsh Patel
Presentation describes about the risk and challenges in virtual currencies. It also describes about the working of virtual currencies and bitcoin in specific.
In an era of rapid technological advancements, understanding cryptocurrencies is no longer optional; it's a necessity. Our guide is meticulously designed to cater to both beginners and seasoned investors, offering insights, strategies, and practical advice that will empower you to make informed decisions in this dynamic market.
Our Comprehensive Cryptocurrency Guide is your passport to the exciting and potentially lucrative world of digital assets. Whether you're looking to invest, trade, or simply broaden your financial knowledge, our guide will equip you with the skills and confidence you need to thrive in the cryptocurrency landscape.
Impact of Blockchain on IT AuditBlockchain Techn.docxsheronlewthwaite
Impact of Blockchain on IT Audit
Blockchain Technology Overview
Three Levels of Blockchain, Tokens
Alliances and Industry Adoption
Smart Contracts
Identity Management
Criticism and Challenges
Impact on the IT Audit Function
Learning and Engagement
Agenda
*
Blockchain technology is a digital innovation that is poised to significantly alter financial markets within the next few years, within a cryptographic ecosystem that has the potential to also significantly impact trusted computing activities and therefore cybersecurity concerns as a whole.
Blockchain Overview
.
*
How many of you:
Have heard of bitcoins?
Own cryptocurrency?
Feel you understand the underlying blockchain technology?
Feel you can summarize for us the benefits of the “trust economy”?
Are involved in projects that involve blockchain technology implementation or related activities?
Student Exposure
*
Where It All Started
Blockchain technology was first introduced in a whitepaper entitled: “Bitcoin: A Peer-to-Peer Electronic Cash System,” by Satoshi Nakamoto in 2008.
No reliance on trust
Digital signatures
Peer-to-peer network
Proof-of-work
Public history of transactions
Honest, independent nodes control majority of CPU computing power
Nodes vote with CPU computing power
Rules and incentives enforced through consensus mechanism
https://bitcoin.org/bitcoin.pdf
*
Cryptocurrency Summarized
Bitcoin was the first digital, i.e., cryptocurrency
A maximum of 21 million Bitcoins can be generated
Just as with real world mining, energy must be invested to solve complex mathematical problems by which systems earn Bitcoins
https://www.cryptocoincharts.info/coins/info claims to be indexing 4,220 cryptocurrencies
Most circulated: Bitcoin, Ethereum, Litecoin
*
The Technology Behind Bitcoin
Think of Bitcoin as an electronic asset (as well as a digital currency)
A network of computers keeps track of Bitcoin payments, and adds them to an ever-growing list of all the Bitcoin payments that have been made, called “The Bitcoin Blockchain”
The file that contains data about all the Bitcoin transactions is often called a “ledger”
Bitcoin value is created through transaction processing, referred to as “mining,” which is performed by distributed processors called “nodes” of the peer-to-peer network
A Gentle Introduction to Bitcoin by Antony Lewis, https://bravenewcoin.com/assets/Reference-Papers/A-Gentle-Introduction/A-Gentle-Introduction-To-Bitcoin-WEB.pdf
*
Mining Evolution
Mining is the process whereby value is created through transaction processing that occurs on nodes of the network.
In 2009, one could mine 200 Bitcoins with a personal, home computer. In 2015, it would take about 98 years to mine just 1 Bitcoin.
Today there is almost no money to be made through traditional home mining.
ASIC (Application Specific Integrated Circuit) has been designed strictly for mining Bitcoins.
Groups of miners have formed mining pools, with each being paid their relati ...
Wirex presentation for PayExpo Europe 2017 highlighting the current state of Blockchain technology, cryptocurrency potential in the payments industry and W-Pay, off-chain liquidity network. The full video can be found here: https://www.youtube.com/watch?v=Lveacm2f55A
Foreword
This paper is the result of a research project carried out by Labs
in EVRY Financial Services during the fall of 2015. The content of
this report is the result of a comprehensive study, featuring online
sources, literary works, as well as recordings of financial
conferences such as Consensus 2015 and Fintech Week 2015.
We aim to provide a comprehensive report detailing the
opportunities, challenges and key success factors for financial
institutions looking to leverage the opportunities presented by
blockchain technology.
We hope you enjoy this study and that it helps give you greater
understanding.
The document discusses various applications and improvements of blockchain technology beyond Bitcoin 1.0, including smart contracts, decentralized autonomous organizations, sidechains and counterparty. Ethereum is presented as a platform to build decentralized applications that allows for more transaction types beyond currency, including multi-signature transactions and creating your own currencies. It aims to be a scalable foundational protocol for other applications to utilize improved features like faster block confirmation times.
This document summarizes key points about Bitcoin, blockchain technology, and cryptocurrencies. It discusses how Bitcoin works through a peer-to-peer network and cryptography to validate transactions. It also outlines companies working in the Bitcoin ecosystem that have received over $475 million in funding. Both benefits and drawbacks of Bitcoin are presented. The document concludes by suggesting the blockchain technology underlying Bitcoin could transform how property rights are transferred through ledgers in a fast, transparent, and secure manner.
Bitcoin: Not just a currency but an IoT facilitatorRobin Teigland
Bitcoin facilitates IoT by enabling trustless transactions and smart contracts on distributed networks. It allows devices and assets to transact directly through payments encoded in the blockchain. This could support decentralized sharing networks and new forms of digital organizations and governance. While still early, blockchain technology may help realize a more collaborative economy by distributing control through open and peer-to-peer systems.
Investing In Blockchain Startups - A Guide For Angels & VCs Jamie Burke
A presentation by Jamie Burke at www.blockchainangels.eu meetup (11 02-16) for angel and VC investors wanting to understand opportunity & risk in the space.
This document discusses decentralized applications (DApps) from a software engineering perspective. It begins by providing background on cryptocurrencies and blockchains. It then defines DApps, describes their architecture, and categorizes different types. The remainder of the document discusses developing DApps on various blockchain platforms, focusing on Ethereum as an example public blockchain and describing the development process and tools used.
This document introduces Gate.io and its GateChain ecosystem. It discusses how Gate.io is a top cryptocurrency exchange with millions of users worldwide. It then describes GateChain, a new public blockchain focused on digital asset security. GateChain features a revocable transaction model and vault accounts that allow users to recover stolen funds and lost private keys. The document provides examples of how GateChain improves security for individuals, enterprises, and financial institutions. It invites readers to participate in GateChain's testnet to try its wallet and security functionality.
Things to Consider When Choosing a Website Developer for your Website | FODUUFODUU
Choosing the right website developer is crucial for your business. This article covers essential factors to consider, including experience, portfolio, technical skills, communication, pricing, reputation & reviews, cost and budget considerations and post-launch support. Make an informed decision to ensure your website meets your business goals.
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
More Related Content
Similar to Workshop Blockchain in Insurance Industry
IRJET- Transaction based Block Chain CryptocurrencyIRJET Journal
This document proposes a transaction-based blockchain cryptocurrency. It aims to build a transaction-based blockchain architecture to discover cryptocurrencies in a decentralized way. The proposed system would overcome mining transactions by having nodes store the ledger, allowing node-to-node transactions to be monitored. Transactions would be sent through an encrypted channel using elliptic curve cryptography. The system would run locally and provide security, acting as a proof of concept for building blockchain applications.
My talk at IDNOG5 (ID Network Operators Group) Conference, Jakarta, 2018, covers a short overview of fintech, cryptocurrency & blockchain + a networking perspective/use cases at the end
The document discusses blockchain technology and its potential applications in education. It begins with definitions of blockchain and how the technology enables decentralized and transparent recording of transactions. It then covers how blockchains work and their advantages, such as immutability and disintermediation. The document outlines several blockchain initiatives and applications in education, including providing verifiable credentials and certificates. It argues that more blockchain learning is needed given growing career opportunities in the sector.
Presentation for Asian Financial Markets and Institutions, October 2016, HKU MBA Program. Covers basics of blockchain and distributed ledgers and discusses some current and potential applications.
Blockchain technology has the potential to disrupt and enable innovation in many industries. It allows for decentralized networks that do not require intermediaries, improving security, transparency and reducing costs. The document discusses potential applications of blockchain in various sectors such as financial services, banking, insurance, communications, voting, internet of things and more. It provides examples of companies already experimenting with and implementing blockchain solutions.
Risk & challenges in virtual currencies - Cocon 2013Harsh Patel
Presentation describes about the risk and challenges in virtual currencies. It also describes about the working of virtual currencies and bitcoin in specific.
In an era of rapid technological advancements, understanding cryptocurrencies is no longer optional; it's a necessity. Our guide is meticulously designed to cater to both beginners and seasoned investors, offering insights, strategies, and practical advice that will empower you to make informed decisions in this dynamic market.
Our Comprehensive Cryptocurrency Guide is your passport to the exciting and potentially lucrative world of digital assets. Whether you're looking to invest, trade, or simply broaden your financial knowledge, our guide will equip you with the skills and confidence you need to thrive in the cryptocurrency landscape.
Impact of Blockchain on IT AuditBlockchain Techn.docxsheronlewthwaite
Impact of Blockchain on IT Audit
Blockchain Technology Overview
Three Levels of Blockchain, Tokens
Alliances and Industry Adoption
Smart Contracts
Identity Management
Criticism and Challenges
Impact on the IT Audit Function
Learning and Engagement
Agenda
*
Blockchain technology is a digital innovation that is poised to significantly alter financial markets within the next few years, within a cryptographic ecosystem that has the potential to also significantly impact trusted computing activities and therefore cybersecurity concerns as a whole.
Blockchain Overview
.
*
How many of you:
Have heard of bitcoins?
Own cryptocurrency?
Feel you understand the underlying blockchain technology?
Feel you can summarize for us the benefits of the “trust economy”?
Are involved in projects that involve blockchain technology implementation or related activities?
Student Exposure
*
Where It All Started
Blockchain technology was first introduced in a whitepaper entitled: “Bitcoin: A Peer-to-Peer Electronic Cash System,” by Satoshi Nakamoto in 2008.
No reliance on trust
Digital signatures
Peer-to-peer network
Proof-of-work
Public history of transactions
Honest, independent nodes control majority of CPU computing power
Nodes vote with CPU computing power
Rules and incentives enforced through consensus mechanism
https://bitcoin.org/bitcoin.pdf
*
Cryptocurrency Summarized
Bitcoin was the first digital, i.e., cryptocurrency
A maximum of 21 million Bitcoins can be generated
Just as with real world mining, energy must be invested to solve complex mathematical problems by which systems earn Bitcoins
https://www.cryptocoincharts.info/coins/info claims to be indexing 4,220 cryptocurrencies
Most circulated: Bitcoin, Ethereum, Litecoin
*
The Technology Behind Bitcoin
Think of Bitcoin as an electronic asset (as well as a digital currency)
A network of computers keeps track of Bitcoin payments, and adds them to an ever-growing list of all the Bitcoin payments that have been made, called “The Bitcoin Blockchain”
The file that contains data about all the Bitcoin transactions is often called a “ledger”
Bitcoin value is created through transaction processing, referred to as “mining,” which is performed by distributed processors called “nodes” of the peer-to-peer network
A Gentle Introduction to Bitcoin by Antony Lewis, https://bravenewcoin.com/assets/Reference-Papers/A-Gentle-Introduction/A-Gentle-Introduction-To-Bitcoin-WEB.pdf
*
Mining Evolution
Mining is the process whereby value is created through transaction processing that occurs on nodes of the network.
In 2009, one could mine 200 Bitcoins with a personal, home computer. In 2015, it would take about 98 years to mine just 1 Bitcoin.
Today there is almost no money to be made through traditional home mining.
ASIC (Application Specific Integrated Circuit) has been designed strictly for mining Bitcoins.
Groups of miners have formed mining pools, with each being paid their relati ...
Wirex presentation for PayExpo Europe 2017 highlighting the current state of Blockchain technology, cryptocurrency potential in the payments industry and W-Pay, off-chain liquidity network. The full video can be found here: https://www.youtube.com/watch?v=Lveacm2f55A
Foreword
This paper is the result of a research project carried out by Labs
in EVRY Financial Services during the fall of 2015. The content of
this report is the result of a comprehensive study, featuring online
sources, literary works, as well as recordings of financial
conferences such as Consensus 2015 and Fintech Week 2015.
We aim to provide a comprehensive report detailing the
opportunities, challenges and key success factors for financial
institutions looking to leverage the opportunities presented by
blockchain technology.
We hope you enjoy this study and that it helps give you greater
understanding.
The document discusses various applications and improvements of blockchain technology beyond Bitcoin 1.0, including smart contracts, decentralized autonomous organizations, sidechains and counterparty. Ethereum is presented as a platform to build decentralized applications that allows for more transaction types beyond currency, including multi-signature transactions and creating your own currencies. It aims to be a scalable foundational protocol for other applications to utilize improved features like faster block confirmation times.
This document summarizes key points about Bitcoin, blockchain technology, and cryptocurrencies. It discusses how Bitcoin works through a peer-to-peer network and cryptography to validate transactions. It also outlines companies working in the Bitcoin ecosystem that have received over $475 million in funding. Both benefits and drawbacks of Bitcoin are presented. The document concludes by suggesting the blockchain technology underlying Bitcoin could transform how property rights are transferred through ledgers in a fast, transparent, and secure manner.
Bitcoin: Not just a currency but an IoT facilitatorRobin Teigland
Bitcoin facilitates IoT by enabling trustless transactions and smart contracts on distributed networks. It allows devices and assets to transact directly through payments encoded in the blockchain. This could support decentralized sharing networks and new forms of digital organizations and governance. While still early, blockchain technology may help realize a more collaborative economy by distributing control through open and peer-to-peer systems.
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This document discusses decentralized applications (DApps) from a software engineering perspective. It begins by providing background on cryptocurrencies and blockchains. It then defines DApps, describes their architecture, and categorizes different types. The remainder of the document discusses developing DApps on various blockchain platforms, focusing on Ethereum as an example public blockchain and describing the development process and tools used.
This document introduces Gate.io and its GateChain ecosystem. It discusses how Gate.io is a top cryptocurrency exchange with millions of users worldwide. It then describes GateChain, a new public blockchain focused on digital asset security. GateChain features a revocable transaction model and vault accounts that allow users to recover stolen funds and lost private keys. The document provides examples of how GateChain improves security for individuals, enterprises, and financial institutions. It invites readers to participate in GateChain's testnet to try its wallet and security functionality.
Similar to Workshop Blockchain in Insurance Industry (20)
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3. How data quality and governance form the backbone of AI.
4. Organizational processes and structures that may inhibit effective AI adoption.
6. Ideas and approaches to help build your organization's AI strategy.
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In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
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2. Tentang Saya
u Kepala Pusat Studi Kriptografi dan
Keamanan Informasi, Universitas
Gunadarma
u Disertasi @Universitaet Bielefeld
(2007)
u Protokol Kriptografi Penyelesaian
Transaksi Keuangan Pada Sistem
Terdesentralisasi
u Protokol Cryptocurrency sebelum
Blockchain
u Pengalaman Mengajar
u Dosen Tetap, Universitas Gunadarma
u Dosen Pengampu MOOC APTIKOM
u Dosen Tamu, Blekinge Technische
Hogshkola (BTH), Sweden
u Dosen Tamu Pada Jurusan
Kriminologi – UI
u Konsultan Teknologi Informasi :
u Certification Authority System
u Payment System
u Information Security Audit & Security
Testing
u IPTV / OTT System
u Blockchain Implementation & DApps
Development
u National Roadmap for CSIRT
u National Cybersecurity Framework
for E-Government
AAMAI
International
Conference
on
DIGITAL
TRANSFORMATION
IN
FINANCIAL
INDUSTRY
3. Agenda
u How Blockchain Works
u Hands-on : Exploring Chain of Hash
u Exploring Ethereum Blockchain Networks
u Hands-on : Blockchain Explorer
u SmartContract
u Hands-on : Ether Wallet on a Private Blockchain (AAMAIBlockchain)
u Please download and install : https://metamask.io
u Tutorial : https://youtu.be/2n74ICcvNKk
u Exploring Possible Scenario of Decentralized Application in
Insurance Industry
u Hands-On : Executing Example DApps on Flight Delay Insurance
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5. Sir Tim Bernes-Lee's vision of the INTERNET
u Back in 1994, he described the software system he was
about to develop as
u decentralization: no central authority, no single point of
failure, no central controlling node, no "kill switch"
u non-discrimination: everyone is free to choose how they
connect to the system
u openness: system will be developed in full view of
everyone, encouraging maximum participation and
experimentation
u universality: all computers on the network communicate
with each other regardless of hardware or location
u consensus: both systems and users will comply with
standards that are created through transparent,
participatory process based on consensus
u https://webfoundation.org/about/vision/history-of-the-
web
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6. Motivation
u The Era of Digital
Economy and Industry 4.0
u Receives great deal of
Public Attention since
2014
u BlockChain might replace
Centralized System such
as Bank
u Recent Development of
Smart Contract
Technology
u Recent Research in
Decentralized Systems
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7. BlockChain for Zero Hunger
World Food Programme
• Cash Transfer System for 100.000 Syrian Refugee in Jordan
• Iris data are acquired by UNHCR when refugee enter the
camp
• POS system with Iris scanner in every merchant / retailer
• Transactions are stored in the Permissioned BlockChain
using Parity Ethereum Client
• Transaction settlement every 2 weeks for the merchant
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8. BlockChain for Zero Hunger
• Single ID using biometric
technology (Iris)
• Highly accurate
• No need to use cards or
tokens
• The ID represents Wallet in
Ethereum BlockChain
• Independent from any
central authority
• Direct cash distribution,
no intermediaries
• Transparent, traceable,
and accountable
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9. How Blockchain Works
EVOLUTION OF DECENTRALIZED PROTOCOL
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10. Centralized Systems
u Central Data Storage and Processing
u Users use dumb terminal
u Introduces Single point of failure
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11. Internet as Large Scale Distributed
Systems
u Data stored in the
server and processing
are conducted both
in client and server
u Web 2.0 → social
network and B2B
u In E-Commerce :
u Payment gateway as
trusted third party for
completing
transactions
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12. Decentralized Systems
u Peer to Peer
u Every node / peer has equal
role
u Self organization &
Community based
u No Central Authority
u Applications :
u File Sharing (back to the old
days)
u Independent data routing
(MANET) in wireless mesh
network
u NOW : Cryptocurrency and
Other Decentralized Apps
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13. Research Question in Decentralized
System
“How can one complete transactions
when trusted authority or trusted
party is absent
or socially very weak”
Technically
“How to prevent double spending”
Since no central server for managing
the transactions
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14. Some Proposals
1. Social Labelling Propagation. Information of
the financial balance is attached to the
label
2. Various Anonymous Protocols
u Cocaine Auction Protocol (Stajano &
Anderson, 1999).
3. Communal Key + Partial Community
Signature n-out-of-m to verify last state of
financial balance (2007)
u The ”Creation” and “Elimination” of
Institutional Money to complete
transactions
u https://pub.uni-
bielefeld.de/publication/2302717
4. BlockChain by a Pseudo Man called Satoshi
Nakamoto (Sept 2008)
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15. What is BlockChain
u Satoshi Nakamoto (2008)
u Decentralized Ledger that promotes immutability
u BlockChain = Chain of Blocks that can be validated
u Transactions are stored in each Block
u Hash of Previous Block is Included in the Next Block
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16. ü An algorithm to derive a
fixed length footprint /
digest of a message
ü One bit change in a
message cause more
then half change in the
digest
ü Used to prove integrity
of a message
ü Solve integrity problem
ü Algorithms: MD5, SHA1,
SHA256, TigerHash,
Kecak, etc
Hash Algorithm
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17. How Blockchain Works ?
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19. Hands on
u https://demoblockchain.org/hash
u https://demoblockchain.org/block
u https://demoblockchain.org/blockchain
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20. BlockChain
u Consensus
Every peer has the same and exact copy of data
u Provenance
Chronology of Ownership
u Immutability
History can not be altered
u Finality
Once committed can not be revoked
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21. The BlockChain
u A trades with B
u A send B a message : A gives 10 AAMAICoin to B digitally
signed by A
u B broadcast it to everyone on the network and ask to verify
u If there is enough verification -> everyone updates their copy
of ledger with consensus protocol
u Hash and Public Key promotes Non-Repudiation State
u Whole mechanism Prevent Double Spending
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22. Merkle Tree
u A Tree structure in which
every leaf node is
labelled with the hash of
a data block and every
non-leaf node is labelled
with the hash of the
labels of its child nodes.
u Hash trees allow efficient
and secure verification
of the contents of large
data structures.
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23. How to Verify Transactions in The Block
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24. Consensus
u A blockchain is a decentralized peer-to-peer system with
no central authority :
u How are any decisions made?
u How does anything get done?
u To make decisions, peers using “consensus mechanisms” :
which candidate block is accepted by all peers to be the
next block
u The Bitcoin miners use proof-of-work protocol to construct
new blocks
u Others may have another methods / algorithm to conduct
concensus
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25. Proof of Work
u Every node collect
transactions and form a
block
u The problem is to
determine whose block
will be accepted
u Criteria :
u True : every
transactions are
validated
u Has valid nonce in
corresponding to its
hash
u Nonce : a random
number
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26. Proof of Work (2)
u Guess a random number (nonce)
where hash(hash(block+nonce))
< target_puzzle
u Target : hash with specified
number of zero in the hash
u For example :
0x0000f58283d63b7e8a9c
u In Bitcoin : Node who “wins” get
number of coin -> how coin is
minted
u When the node forms a block, it
asserts a transaction that he
receives number of coin
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27. Proof of Work (3)
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28. Consensus
u New transactions are broadcast to all nodes.
u Each node collects new transactions into a block.
u Each node works on finding a difficult proof-of-work for its block.
u When a node finds a proof-of-work, it broadcasts the block to all
nodes.
u Nodes accept the block only if all transactions in it are valid and not
already spent.
u 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.
u Nodes always consider the longest chain to be the correct one and
will keep working on extending it.
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32. How the Network Converges
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33. Mining and Miners Problem
u Successful miners are “rewarded” some
cryptocurrency
u it encourages participations
u It requires lots of computing power (
consumes lots of energy )
u It is a business for several people
u Other Algorithm does not need mining
(Tarigan, 2007)
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34. Security
BlockChain employs
u RIPEMD-160 and SHA-256
for hash algorithm
u Elliptic Curve Digital
Signature Algorithm
Security :
u Prevent Double
Spending
u Can detect attempt of
forgery
u Accountability (we can
trace coin history)
u Problem :
u Private key stored in
Wallet are vulnerable
u Packet sniffing
u Sybill Attack
u DoS attack
u Illegal Content in
BlockChain
u Energy Consumption
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35. Evolution of Trust
• Due to the inherent risk of
the lack of trust, today’s
economy is heavily
dependent on many
intermediaries
• It works relatively well
most of the time with
occasional scandals of
erosion of trust
• It adds on delays and
costs for the
intermediaries to validate
and enforce transactions
before the parties
Blockchain technology is the enabler for the future trust-
free sharing economy.
It is disruptive to existing business models that involve an
zero or low value-add intermediary.
36. Evolution of Trust
In blockchain
enabled economy,
information is
distributed and
trust is
decentralised and
formalised by smart
contracts
37. Use cases example for various industries
Financial Insurance Retail Manufacturin
g
Healthcare Public Sector
• Cross
border /
currency
payments
• Trade
Finance
• Loans
• KYC
• Claims filing
and
processing
• Risk
provenanc
e
• Fraud
detection
• Product
authenticity
and
provence
Ownership
&
attribution
• Supply
chain
provence
• Supply
Chain
Manageme
nt
• IoT
• Sharing of
patient
record
• Enable low
cost cross
border
treatment
• Asset
Registry
• Voting
• Identity
manageme
nt
38. What is “blockchain-able”?
u Blockchain is NOT the
panacea for every
problem!
u Need of a clear,
balanced method to
determine blockchain
suitability to a business
use-case
39. Business view of Blockchain
u In any blockchain applications, we need to identify
v Actors
v Actions / Transactions
v Business network
v Assets
v Agreement / contracts
v Ledger of transactions
40. Blockchain or not?
1. Can it be solved with more matured technology?
2. Can we clearly identify actors, assets and transactions?
3. Is there a need to have system enforced consensus, immutability, finality,
etc?
42. Public, Consortium or Private
Blockchain?
https://medium.com/@sbmeunier/when-do-you-need-blockchain-decision-models-a5c40e7c9ba1
https://eprint.iacr.org/2017/375.pdf
43. Business view of Blockchain
Current Centralised model Future blockchain decentralised model
Actors Importer, Exporters, Banks, Insurance,
Credit Finance, Transportation, Custom
Remains unchanged, some players may
see take a lesser importance role
Actions /
Transactions
Purchase / Sales, Insure, Claim, Apply
credit, Deliver, Track
remains unchanged
Business network TradeNet, SWIFT, Individual bank, insurer,
transport operator portal, Government
custom portal
Consolidate into a single blockchain or
multiple blockchain working in harmony
Assets Goods of all types, sizes and values Digitised assets tracked on blockchain.
Different treatment for homogeneous and
heterogeneous assets
Agreement /
contracts
Purchase Order, Invoices, Letter of
Credit, Bill of Lading, Insurance policy
Simplified legal contract to complement
blockchain smart contract
Ledger of
transactions
Individual party books of account Blockchain keeps all transactions
Individual business continues to keep their
books of account for internal use.
Reconciliation is always against blockchain
45. To BlockChain or Not To BlockChain
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46. BlockChain and Decentralized System
u Cryptocurrency is one of the application of
Decentralized System like BlockChain
u Many other applications are possible to be
applied on the decentralized network
u Most of Big IT Technology Company proposes
their solution on BlockChain : IBM, Microsoft, etc
u Supply Chain, Healthcare, Reward System,
MicroPayment System, Virtual Crowd Based
Networking, etc
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47. Ethereum’s SmartContract
u Written in Turing Complete Machine
u The network can run “any code”
u Founder : Vitalik Buterin
u The Main cryptocurrency is called Ether
u We can write our own currency in Ethereum
network / Platform using ERC 20 specification
u It enables almost any application can be run on
decentralized network in a form of Smart
Contract
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50. Server-centric architecture
u Web / App server
manages private keys
on behalf of users
u All blockchain
transactions are
initiated by app server
u A natural extension of
conventional web-app
architecture into
blockchain DAPP
Browser
HTML CSS JS
Web / App
server
Ethereu
m node
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51. Web / App
server
Ethereum
node
Browser
HTML CSS JS
Metamask
DApps Architecture
u Metamask (Wallet)
manages user’s private
keys
u Web / App server
manages application
private keys
u Blockchain transactions
are initiated by browsers
and app server
depending on the
nature of transaction
u Recommended
architecture for
production grade
Blockchain application
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55. Blockchain in Insurance
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Auditable SmartContract
promotes security and trust
•SmartContract can be
audited by third parties
•Once deployed can not
be modified
Advanced Automation
•Medical record view/edit
authorization for medical
purposes
•Claim automation
•Rule Based Claim
Processing
•Vote-Based Claim
Processing
Cybersecurity
•Blockchain promotes
immutability
•Changes are transparants
56. Blockchain in Insurance
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Etherisc
Etherisc builds decentralized,
blockchain-centric applications for
different sectors of the insurance
industry. The company is focused on
using ledger technology to cut down on
inefficiencies, namely high processing
fees and extensive claim-processing
times.
Beenest
The company is teaming up
with WeTrust to develop a blockchain-
based insurance for Beenest
homeowners. For now, the Bee Token
can currently be used to book rooms in
the San Francisco area with the
aspiration to expand their processes
abroad in the near future.
57. Blockchain in Insurance
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Guardtime
Guardtime recently teamed up with
logistics giant Maersk to implement a
blockchain-based maritime insurance
platform that will manage risk, use smart
contracts and establish an immutable
chain-of-shipping to help insurance
companies thoroughly provide
coverage.
Fidentiax
users are able to buy, sell or store their
insurance policies on the company’s
blockchain. Using tokenization, the
blockchain-powered marketplace takes
existing policies and puts them into the
encrypted database. In real-time, users
are able to cash out on their policies,
buy policies from others or just find all
their insurance information in one place.
58. Blockchain in Insurance
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Lemonade
The company’s business model takes a
fixed fee from each monthly payment
and allocates the rest towards future
claims. If a claim is made, the
blockchain’s smart contracts will
immediately attempt to verify the loss so
a customer can get paid quickly.
Fizzy
Fizzy uses blockchain to ensure that
members whose flights are delayed
more than two hours are immediately
compensated. The company’s
blockchain supplements travel insurance
that usually doesn’t cover financial loss
due to flight delays.