This document provides an overview of blockchain technology and its applications. It begins with defining blockchain and how it allows for peer-to-peer transactions without intermediaries. Examples are given of how this can streamline electronic payments and reduce costs. The remainder of the document discusses blockchain types, how transactions are secured, smart contracts, and real-world use cases for blockchain in ticketing and solar energy through examples of projects. It concludes with resources for further learning about blockchain development.

1. 1

2. Agenda
― What is Blockchain ?
― How to develop Dapps and Smart-Contracts
― ELCA Real live Blockchain projects : Ticketing and P2P Solar Energy
― Bonus : Live Demo
1
2
3
4

3. Exchanging value
3
➔ No middleman required.
➔ Do your Fraud detection yourself
➔ Sufficient trust for the value of the
transaction
➔ Anonymous/Private
➔ Distributed

4. Electronic Payment
Today
• Requires 3rd
party trust
• The more complex the flow, the more
middlemen required
• Specialised equipment needed (e.g. POS
terminal, connection to Txn networks
• Fraud detection by 3rd
parties
• Every step adds cost

5. Bitcoin payment
tomorrow
5
➔ Return to Peer-to-Peer
➔ Speed
➔ Trustless trust
➔ No special equipment needed
➔ Fraud
➔ Minimal Cost
➔ No chargebacks
➔ No monthly fees
➔ Transparency

6. ©copyright 2017 6Source : BlockGeeks.com

7. ― How Bitcoin transaction
are secured ?

8. What is Blockchain ?

9. Internet of Value
9
Blockchain is a distributed network
of value

10. 10

11. How Blockchain is
replicated accross the
distributed ledger ?
•
•
•
•
•
11

12. ▪
▪
▪
A block chain or
blockchain is a
distributed database,
introduced by Bitcoin
(2008) on Satoshi
Nakamoto’s white paper,
that maintains a
continuously-growing
list of data records that
each refer to previous
items on this list.
12

13. ©copyright 2017
Keys and Wallets
13
Software wallets / Mobile
Installed in your computer, and give
you complete control over your
wallet. Need to do backup and
protect agains malware that target
now specific wallet.
Bitcoint-Qt, Multi-Pt,
https://99bitcoins.com/best-bitcoin-wallet-comparison-review/
Paper Wallet / Cold Wallet
,
Hardware wallet
Blockchain use cases - Guild42 - Sept 11th

14. What is a Smart
Contract
Smart contracts are computer protocols
that facilitate, verify, or enforce the
negotiation or performance of a contract,
or that make a contractual clause
unnecessary. Smart contracts often
emulate the logic of contractual clauses
Source : Wikipedia

15. ©copyright 2017
Blockchain Type
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Public Blockchain
Source : https://www.linkedin.com/pulse/blockchain-enterprise-karthik-ramamoorthy

16. ©copyright 2017
Blockchain Type
Blockchain use cases - Guild42 - Sept 11th 17
Private Blockchain
Source : https://www.linkedin.com/pulse/blockchain-enterprise-karthik-ramamoorthy

17. ©copyright 2017
Do you want to mine Bitcoin ?
Blockchain use cases - Guild42 - Sept 11th 19

18. ©copyright 2017
Bitcoin blockchain is not energy efficient !
Blockchain use cases - Guild42 - Sept 11th 20
9.9 Millions
habitants
>1,888.12
kWh

19. ©copyright 2017
Bitcoin – Blockchain - Facts
Blockchain use cases - Guild42 - Sept 11th
Cryptocurrency
Bitcoin
HISTORY
FACTS AND MARKET SHARE
• The first wallet program was released in 2009
by Satoshi Nakamoto as open-source code
• Famous transaction is 10,000 BTC used to indirectly
purchase two pizzas delivered by Papa John's
• On 6 August 2010, a major vulnerability in the bitcoin
protocol was spotted but fixed with network split
• On 21 July 2017 miners locked-in a software upgrade
referred to as Bitcoin Improvement Proposal (BIP) 91
• Segwit2x has been adopted by enough of the bitcoin
community to proceed thus creating 1st hard fork in
Bitcoin. Bitcoin CASH is a rival proposal and created
on August 1st 2017.
• Represent 69$ Billion Market share in the
crypto-currency world (as Sept 09 2017)
21

20. ©copyright 2017
Ethereum – Blockchain - Facts
Blockchain use cases - Guild42 - Sept 11th
Public Blockchain
Ethereum
– Open-source, public, blockchain-
based distributed computing platform
featuring smart contract (scripting) functionality
– It provides a decentralized Turing-complete
virtual machine called EVM : Ethereum Virtual
Machine, is the runtime environment for smart
contracts in Ethereum
HISTORY
FACTS AND MARKET SHARE
• Ethereum was proposed in late 2013 by Vitalik
Buterin
• The system went live on 30 July 2015
• In 2016 Ethereum was forked into two blockchains,
as a result of the collapse of The DAO project,
thereby creating Ethereum Classic
• Represent 29$ Billion Market share in the
crypto-currency world (as August 2017)
• ETH is the currency used to fuel and make the
smart-contract running
• Enterprise Ethereum Alliance (EEA) is offering a
permissioned version of Ethereum for Enterprise
22

21. ©copyright 2017
How to read the Ethereum Blockchain : Etherscan or Ethplorer
Blockchain use cases - Guild42 - Sept 11th 23

22. ©copyright 2017
Hyperledger – Blockchain - Facts
Blockchain use cases - Guild42 - Sept 11th
Permissioned
Hyperledger
– Blockchain framework implementation and one of
the Hyperledger projects hosted by The Linux
Foundation
– Allows components, such as consensus and
membership services, to be plug-and-play
– Leverages container technology to host smart
contracts called “chaincode” that comprise the
application logic of the system
HISTORY
MARKETS AND FACTS
• December 2015, the Linux Foundation announced
the creation of the Hyperledger Project
• July 2017, the project announced its production-
ready Hyperledger Fabric 1.0.
• Regroup more than 100 partners (IBM, Cisco,
Hitachi, JPMorgan,Accenture …)
• Hyperledger is mostly used in enterprise and
private blockchain
• There is no crypto-currency associated with
Hyperledger
24

23. ©copyright 2017
Blockchain Key Principles
Blockchain use cases - Guild42 - Sept 11th 25
Blockchain
Transparency & Visibility - No one
should be able to cover their tracks.
Privacy - Security should be
afforded without giving up
confidential information.
Scalability - Must be able to scale
to trillions of digital assets and also
transactions (not the case for public
blockchain for the moment).
Reduce Time to market : via smart-
contract can be easy to make a P2P
transaction
Accountability - Every action
should be attributable to it’s
owner.
Permanence - Security must not be
ephemeral – it must exist as long as the
data exists, and ideally longer.

24. ©copyright 2017
Blockchain is more than Bitcoin
Blockchain use cases - Guild42 - Sept 11th 26
https://www.six-interbank-clearing.com/dam/downloads/de/events/2016/sbof/blockchain.pdf
BLOCKCHAIN
CURRENCY ASSETS CONTRACTS DATA P2P
INSURANCE, FILE STORAGE, VOTING & E-ID, AND MANY OTHERS ...
PATIENT HEALTH RECORD, DRUGS TRACKING, SUPPLY CHAIN
CROSS BORDER PAYMENTS, KYC, SECURITIES TRADING

25. ©copyright 2017
Blockchain state in 2017
Blockchain use cases - Guild42 - Sept 11th 27
Cryptocurrency Market share exceed
$100Bn with more than 1’000 tokens
Rise of permissioned Blockchain
R3, IBM, Hyperledger and soon
Microsoft)
Regulator cannot ignore Blockchain and is
moving to regulate it (ICO warning by US
Securities SEC and China banned ICO)
ICOs (Initial Coin Offering) fund raising
exceed traditional Venture Capitals fund
(will exceed $1Bn by end of 2017)
A lot of startup try to innovate by
creating their own Blockchain (soon
will appear Blockchain of Blockchains !)
A lot of pilot project running with
government, private company (ELCA ☺)
using mainly Hyperledger, R3, EEA.

26. Use Cases

27. ©copyright 2017
Blockchain use cases per industry
Blockchain use cases - Guild42 - Sept 11th 33

28. Use case : Combatting Fraud in Ticketing

29. ©copyright 2017
Combating Fraud in Ticketing
Fraud Black marketBot buying tickets
Blockchain use cases - Guild42 - Sept 11th 35
Bots buy tickets faster
than real fans. Tickets
that are then resold on
the secondary market
at higher prices.
Some dealers lie on
the spot category or
even sell fake notes.
With the multiple resale
and the redistribution of
tickets, one does not
know who are the real
spectators.

30. ―Send tickets to friends and
family
―Allow resale at a regulated
price
―Be sure to own a real
ticket
36
&
Our approach with blockchain
Blockchain Mobile

31. ©copyright 2017
37
Securing the ticketing industry
BLOCKCHAIN TICKETING
Your
ticket
Receive ticket at
home or print e-
ticket
Receive a Personal Secure
Ticket on your mobile
wallet proving ticket
ownership
Pay with
credit card
Pay with credit card and
provide information on
one’s wallet account
Personal Secure Ticket
can be transmitted
securely or resold on a
regulated market
Tickets are insecurely
resold or transmitted
Sign up/in
Sign up/in
REGISTER
REGISTER
BEFORE
BLOCKCHAIN
WITH
BLOCKCHAIN
At the entrance ticket
owner’s name does not
match with the holder’s
At the event entrance,
display your ticket on
your mobile wallet

32. High Level Architecture
Secure wallet
in a mobile app
LDA
P/
AD
Hyperledger nodes
API Gateway
Identity
Provider
REST + JSON
AWS SNS
Realtime
notifications
Spring boot app
server
Integration Hub
SecuTix 360°
SMS
openId + JWT
Access
Contro
l
Nearrealtimesync
End to end transactions
Async
transacs
38
Blockchain use cases - Guild42 - Sept 11th

33. ©copyright 2017
Transfering Tickets using Wallet apps and Blockchain
Blockchain use cases - Guild42 - Sept 11th 39
Stand 1
Stand 2
Stand 3

34. Core Ticketing
Platform
feature
pack
40
OBJECTIVES
• Dematerialize ticket management
for stand managers and employees
to simplify processes
• Test the «100% mobile ticket
experience» on a captive audience
with minimum risk before
extending it later to a wider
audience subject to fraud
• Tickets used to be paper-based for
the stand staff resulting in manual
distribution, lack of visibility and
suboptimal management of
changes
SOLUTION
Technology stack
• Mobile app with smart wallet
• Private Blockchain Hyperledger
• Enhanced access control to allow
the conversion of a mobile ticket
into a bracelet
Constraint:
• Different attendance schedule for
staff members across six days with
last minute changes.
• Various maturity levels of mobile
phone usage within target
audience
FACTS & FIGURES
Target audience
200 managers of
stands and their
staff
Volumes
• 10,000 tickets
spread across 200
stand managers
• 2,423 users
• 72% of tickets were
transferred one
time
• 8% of tickets were
transferred more
than 2 times and
up to 5 times
RESULTS
• Good level of satisfaction from users
although some assistance was required
onsite
• 100% visibility on ticket allocation and status
• Successful ticket transfer and exchange
« No need for me to leave my stand and go to
the main gate to hand over his ticket to each of
my employees when they arrive. All it takes is a
simple transfer ». (Stand manager)
« This is a great system! Out of 48 employees,
only 2 required my help.» (Stand manager)
«This is very convenient. No more paperwork! We
can even exchange tickets ». (Stand employee)
6-day event on 18-23 July in Nyon
PALEO 2017 EDITION

35. Core Ticketing
Platform
feature
pack
41
OBJECTIVES
• Secure the mobile ticket
• First time that ever piloted the
100% mobile ticket equipped
with a barcode
• Up until now, all tickets were
paper-based and encrypted with
holograms to prevent fraud
SOLUTION
Technology stack
• Mobile application with secure wallet
• Private Blockchain Hyperledger
• Two-step access control solution
• Outer perimeter: HID + SecuTix
• Inner perimeter: SecuTix access
control on the stadium’s
turnstiles
Use Case
1. Ticket holder scans his m-ticket
through the HID smart reader beacon
at the outer perimeter
2. The system validates that the ticket
holder is authorized.
3. The barcode materializes on the
ticket. From that moment on, the
ticket cannot be transferred
anymore
4. The system retrieves complementary
information from SecuTix and displays
additional data on the ticket (seat #...)
5. Ticket holder enters the inner
perimeter (stadium) by scanning his
ticket at the access control
FACTS & FIGURES
Target audience
Audience of people in
the general public
who did not get a
ticket through the
lottery
Volumes
• 1055 fans were
invited to purchase
tickets
• 130 fans bought
188 tickets
• Tickets could be
transferred to
friends & relatives
• 156 fans had
tickets
Ticket activation
92% were
automatically
activated without any
manual intervention
RESULTS
Smooth and transparent experience for the end users with minimal onsite
support required
Successful pilot proving that the mobile ticket works and meets strict
security expectations.
August 8
SOCCER GAME

36. Architecture
Blockchain use cases - Guild42 - Sept 11th42

37. ©copyright 2017
MVC Apps and Dapps difference
Blockchain use cases - Guild42 - Sept 11th 43
https://blockgeeks.com/decentralized-applications-development-net-developers/

38. ©copyright 2017
Architecture of Dapps - Ethereum
Blockchain use cases - Guild42 - Sept 11th 44
http://blockchainers.org/index.php/2016/05/09/ethereum-development-tools-an-evaluation-matrix/

39. ©copyright 2017
Develop Dapps
Blockchain use cases - Guild42 - Sept 11th 45
https://consensys.github.io/developers/articles/101-noob-intro/

40. Use case Energy

41. ©copyright 2017
47
Blockchain Community Solar
Brooklyn Microgrid
http://brooklynmicrogrid.com
Use Case : Energy – Microgrid in USA
47

42. ©copyright 2017
Our reference implementation for solar Energy
Smart Contracts
Create a
community
Add/remove
members
Invoicing
Accept a
community
Is informed of
shifting members
Transfer metered
data
PV
Building’s
public spaces
Building’s
tenants
Community
manager
Grid operator
The platform proposes functions to
administrate a Community through a web
application
Data meters are transferred from the grid
operator to the Smart contracts to initiate
the invoicing process
Smart contracts coordinate the invoice
process and provide automation and
intelligence on support to the
administrative tasks
The platform includes smart contracts
linking the meter data and the
Community members
Platform general description
Platform demo
Blockchain use cases - Guild42 - Sept 11th
Platform principle
48

43. ©copyright 2017
Blueprint architecture
Blockchain use cases - Guild42 - Sept 11th 49

44. ©copyright 2017
Selling solar surplus via Smart-contract P2P
Blockchain use cases - Guild42 - Sept 11th 50
Solar production
is «uploaded» in the
Blockchain via hardware
device
Surplus is sold via smart-
contract to neighboor
Surplus is credited to
producer with smart-
contract

45. ©copyright 2017
Our energy Smart-contract
Blockchain use cases - Guild42 - Sept 11th 51

46. Ressources

47. ©copyright 2017
To read
https://github.com/PacktPublishing/Mastering-Blockchain
Blockchain use cases - Guild42 - Sept 11th 53

48. ©copyright 2017
To look
Blockchain use cases - Guild42 - Sept 11th 54
Learn Blockchain – E-Learning : https://blockgeeks.com/
Read the Ethereum Blockchain: https://etherscan.io/
News on Ethereum : https://www.ethnews.com/
https://dapps.ethercasts.com/
https://blockchainhub.net/
https://medium.com/zapchain-magazine/the-best-resources-for-learning-to-build-bitcoin-and-
block-chain-applications-8de1953506f5

49. BONUS : Solar P2P Energy live demo

50. Innovations @
ELCA
ELCA is working on innovation projects wich aims to
cover the following domain
• Cloud Security and Searchable Encryption in the
cloud
• ChatBot and Natural Language processing
• BigData
• Blockchain

51. ©copyright 2017
ELCA expertise
Digital & Business
Transformation
Complexity
Reduction
Modernization
Automation
& Standartisation
Time to Market
& Agility
Alignement Business
& IT
Security …
MARKET CHALLENGES
PROJEKT ERFAHRUNG
Consulting
Software
Engineering
Technology
Integration
Application &
Cloud Management
BRANCHEN ERFAHRUNG
Financial
Services
Health &
Pension
Public
Administration
Defense &
Cybersecurity
Transportation &
Logistics
Retail & Other
Industries
(ex. Intern. Org,
Energy etc.)
ANGESAGTE THEMEN
IT Business
Consulting
ECM Enterprise
Content
Management
CIM Customer
Interaction
Management
Big Data &
Analytics
SaaS Service
& Operations
Architecture
Blockchain use cases - Guild42 - Sept 11th 66

52. ©copyright 2017
Blockchain team
Blockchain use cases - Guild42 - Sept 11th 67
– Blockchain
– Team
– Industry
– Business
expert
Financial
– Industry
– Business
expert
Insurance
– Industry
– Business
expert
– Public
sector
– Industry
– Business
expert
Healthcare
Dedicated skilled Blockchain experts

53. ©copyright 2017
•
•
•
•
•
•
•
•
•
•
How ELCA can help on Blockchain technology
Blockchain use cases - Guild42 - Sept 11th 68

54. Mr Nagib Aouini Mr Vincent Larchet
Head of Cyber Security CTO Secutix
Nagib.aouini@elca.ch vincent.larchet@secutix.com
Tel : 021 613 2136 Tel : 021 613 2111
Confidential do not distribute 69