This document summarizes a meetup on blockchain technology. It includes an agenda for presentations on blockchain 101, non-cryptocurrency use cases, and a deep dive on Hyperledger blockchain applications. The blockchain 101 section defines key concepts like distributed ledgers, smart contracts, consensus mechanisms, and public vs private blockchains. It also provides examples of non-financial use cases like supply chain management, IoT, voting, and solar energy trading. The Hyperledger presentation introduces the open source framework, compares it to other blockchains, and highlights capabilities like identity management, privacy, and modular design. It demonstrates Hyperledger Fabric through an example network architecture.

1. Data Science | Design | Technology
(July 24, 2018)
https://www.meetup.com/DSDTMTL
1

2. Copyright © 2018 JDA Software Group, Inc. Confidential 2
DSDT
The meetup will
start soon...

3. Agenda
3
6:15 - 6:30 Meetup News
6:30 - 7:15 (JDA Labs)
Blockchain 101 and non-cryptocurrency
use-cases
7:15 - 8:00 (ChainDigit)
Hyperledger Blockchain Application :
Look under the Hood!
8:00 - 8:30: Happy Birthday (prize lottery)

4. Meetup News
4
• July 24: Data Cup final (Desjardins Lab)
• August 14: Kubernetes 1.11, PostgreSQL, & Traefik (Kubernetes Montreal)
• August 28: Montreal AI Symposium (McGill University campus)
• August 30-31: Blockchain Hyperledger BootCamp (ChainDigit)
• September 18-19-20: Docker and Kubernetes Hands-On Workshops (CloudOps)

5. Topic #1
Blockchain 101
&
Non-Cryptocurrency
Use-Cases
Data Science | Design | Technology 5

6. Copyright © 2018 JDA Software Group, Inc. Confidential 6
Quiz: True of False?
• Blockchain and Bitcoin are essentially the same thing
• A blockchain is only for cryptocurrencies and digital payments
• There is no blockchain standards yet
• A blockchain is always public and open to all willing participants
Blockchain Myths and Reality
(False)
(True)
(False)
(False)

7. Copyright © 2018 JDA Software Group, Inc. Confidential 7
• A blockchain is a peer-to-peer network based
on a shared distributed ledger
• Self-executing business rules (smart contracts)
• Information is validated through a consensus
mechanism
Blockchain: (Over)Simplified Definition
Blockchain

8. Copyright © 2018 JDA Software Group, Inc. Confidential 8
Structure of a Blockchain
• Track and validate transactions between multiple parties
• Transaction are signed and encrypted
• Transactions are grouped in a block, blocks are linked to form a
chronological chain
Transaction
Transaction
Transaction
Transaction
Transaction
Transaction
Transaction
Transaction
Transaction
Transaction
Transaction
Transaction
Block N-1
Block NBlock N-2

9. Copyright © 2018 JDA Software Group, Inc. Confidential 9
Blockchain Distributed Ledger
Decentralized database
• Information is replicated across nodes
• Shared information
Historical record of all transactions
• Append-only data structure (immutability)
Blockchain
(Ledger copies)

10. Copyright © 2018 JDA Software Group, Inc. Confidential 10
Smart Contracts
Computer programs:
• Triggered when a transaction happens
• Validate transactions
• Automate business rules (executable code)
Transaction
Self-execution according
to recorded terms
Smart Contract

11. Copyright © 2018 JDA Software Group, Inc. Confidential 11
Consensus
The protocol to validate transactions on a Blockchain
• Algorithms to reach agreement among the participants
• Prevent malicious actors from manipulating the data
• Different blockchain frameworks, different consensus mechanisms
PoW, PoS, BFT,
PBFT, RBFT…
Sumeragi, PoA, PoET,
etc…

12. Copyright © 2018 JDA Software Group, Inc. Confidential 12
Blockchain for Public & Private Environments
A blockchain can be public (permissionless) or private (permissioned)
• Permissionless: Anyone can join and participants are anonymous
• Permissioned: Pre-verification of participants, so parties are usually
known to each others
The choice between public and permissioned depends on the business need

13. Copyright © 2018 JDA Software Group, Inc. Confidential 13
Blockchain: 1000 Feet Summary
1. Shared distributed ledger
2. Smart contracts for self-executing business rules
3. Consensus mechanism to validate transactions
4. Trust and Security: Immutable, encrypted, signed
series of blocks for a tamperproof system
5. Public or permissioned network
Blockchain

14. Copyright © 2018 JDA Software Group, Inc. Confidential
Blockchain Business Value
14

15. Copyright © 2018 JDA Software Group, Inc. Confidential 15
1. Shared distributed ledger
- Single source of truth
- Information is always accessible (no delay, no reconciliation)
2. Smart contracts
- Business rules are automated (efficiency)
- Business rules are enforced (consistency)
The Value of Core Blockchain Components
(why do we care)

16. Copyright © 2018 JDA Software Group, Inc. Confidential 16
3. Consensus mechanism
- Transaction are validated using a predefined mechanism
- Only transactions validated by consensus are accepted (malicious modifications
are rejected)
4. Trust and Security
- Information used for audits and dispute resolution
5. Public or permissioned
- Multiple business models (Fully open, or restricted to vetted participants)
- Information can be visible to some participants only
The Value of Core Blockchain Components
(why do we care)

17. Copyright © 2018 JDA Software Group, Inc. Confidential 17
Blockchain as a Proof System
Immutable system, secured by authentication and encryption
mechanisms
• Proof of existence
- Access to historical transaction to prove what happened (or never happened)
• Proof of time
- Transactions with timestamp to know when it happened
• Proof of authoring
- All transactions digitally signed to identify who was involved

18. Copyright © 2018 JDA Software Group, Inc. Confidential
Some Blockchain Use-Cases
(No banking, no financial, no crypto)
18

19. Copyright © 2018 JDA Software Group, Inc. Confidential 19
Smart Supply Chain
• Close business collaboration
• Traceability (organic, fair trade, safety regulation)
• Disintermediation
• Digitization & automation (paperless)

20. Copyright © 2018 JDA Software Group, Inc. Confidential 20
Digitization & Automation in a Business Network

21. Copyright © 2018 JDA Software Group, Inc. Confidential 21
Product Traceability Example

22. 22
Autonomous IoT
• 25 billion devices by 2020
• Autonomous agents: Home, Buildings, Roads,
Energy & water systems, etc..
• From IoT to “Internet of decentralized everything”

23. 23
Electronic Vote
• Sierra Leone (Presidential 2018)
• Estonia
• Switzerland (City of Zug)
• France (expatriate citizens)

24. 24
Luxury Products
• Product authentication
• Tamper-proof seal
• But also diamonds, perfume, clothing, honey…

25. 25
Monetize Solar Electricity
• Solar panels
• Sell credits to others
• No middle man

26. 26
Humanitarian Aid
• World Food Program
• Syrian refugee camp – Jordania
• ID verification / Iris scan
• Equally distribute food to refugees

27. 27
More blockchain use-cases
• Education / Human Resources
Academic credentials, background check,
employment history
• Music industry
Copyrights, watermarking, artist compensation
• Real estate
Property information, transfer of ownership
• Medical / Healthcare
Patient information
… and more to come…..

28. Copyright © 2018 JDA Software Group, Inc. Confidential
Blockchain Limitations
&
Expected Improvements
28

29. 29
?
Strict requirements on
data residency and sovereignty
A blockchain may not be the best option if you have…
Shared ledger: Data replicated on all nodes,
potentially across different countries
Blockchain is Not a Silver Bullet

30. Blockchain is Not a Silver Bullet
30
Extremely large amount of data
and transactions
A blockchain may not be the best option if you have…
?
Decentralized ledger: Real-time replication
is difficult to achieve?

31. Blockchain is Not a Silver Bullet
31
?
Business processes based on
external data that is
constantly changing
A blockchain may not be the best option if you have…
??
Smart contract: Deterministic for consistency
across nodes

32. Wide Range of Options but…
Low maturity
• Emerging technology and frameworks
No clear leader(s)
• No established player / market leader
Concerns about resource consumption
• Some frameworks require a lot of energy
32Bitcoin Corda Hyperledger
frameworks
Chain Core IotaQuorum OpenChainEthereum
and much
more…
Lack of Blockchain expertise
• Limited skills and scarce resources
Lack of standards
• Limited interoperability

33. Topic # 2
Hyperledger
Blockchain
Application
Look under the
Hood!
Data Science | Design | Technology 33

34. Enterprise Blockchain : Myth or Reality
DSDT Meetup
July 24, 2018

35. 2
Who are we ?
● Leading Hyperledger consulting organisation for Enterprises initiated in 2016.
● Led by senior IT leaders with hands on experience on large enterprise systems
● Strategists with experience in enterprise wide digital transformations with a clear focus on
Blockchain Applications for Enterprises
● ChainDigit proprietary IP for Blockchain accelerators
● Partnered with global blockchain leaders
● Hyperledger development community of very motivated senior and junior developers in
Canada & India
● Hyperledger General Member

36. How can we help ?
Blockchain services for enterprises
Consulting Training
Provisioning
Application
Services
ACCELERATORS

37. Types of blockchain
4
Public blockchains
▪ Un-permissioned blockchain is a public
blockchain where anyone can participate
in a transaction
▪ Public blockchain gives highest
importance in anonymity, immutability
and transparency over efficiency. An
example public blockchain is Bitcoin.
Permissioned blockchains
▪ Only authenticated users can access and
transact on the blockchain
▪ Permissioned gives more importance on
efficiency, immutability and data privacy
over anonymity and transparency.

38. Myth Debunked: Blockchain ≠ Cryptocurrency
5
Blockchain and cryptocurrencies are often discussed in
similar contexts, but they are not one and the same.
Distributed ledgers do not require a cryptocurrency to work.
Cryptocurrency encompasses an anonymous record of who
owns what tokens. Token exchanges create new entries on
the ledger. Blockchains prevent the same token from being
spent twice.
Many blockchain networks have built-in cryptocurrency as an
incentive to the miners and transacting participants. However,
the most popular existing blockchains like Bitcoin and
Ethereum utilize completely trustless networks and
permissionless chains.
Cryptocurrency is
an application that
sits on top of
blockchain.
Not the other way
around.

39. Need for an enterprise blockchain
6
➢ Data Privacy and confidentiality
➢ Efficiency and speed of transactions
➢ Modular design approach
➢ Hybrid approach
➢ B2B focus
➢ Mining and legal restrictions on location of nodes
➢ Alignment with the vision of going digital
✓ Hyperledger answers all these concerns for enterprise and promises
to be a solution for many of its use cases.

40. Open source
collaborative effort to
advance cross-industry
blockchain
technologies
Hosted by
The Linux Foundation,
fastest-growing project in
LF history
Global collaboration
spanning finance,
banking, IoT, supply
chains, manufacturing
and technology
Introducing Hyperledger
7

41. Hyperledger
Cello
Hyperledger
Explorer
Hyperledger
Quilt
Tools
Typically built for one framework, and through
common license and community of communities
approach, ported to other frameworks
Hyperledger
Sawtooth
Hyperledger
Iroha
Hyperledger
Indy
HyperledgerCloud Foundry Node.js
Open Container
Initiative
Hyperledger Umbrella
8
Infrastructure
Technical, Legal,
Marketing, Organizational
Ecosystems that accelerate
open development and
commercial adoption
Frameworks
Meaningfully differentiated approaches
to business blockchain frameworks
developed by a growing community of
communities
Hyperledger
Burrow
Hyperledger
Fabric
Hyperledger
Composer

42. Hyperledger Fabric
Business Blockchain Framework
9
● First project that was contributed to Hyperledger
● Contributed by Digital Asset and IBM
● Smart contracts called “chaincode” are written in Golang, Node.js and Java (
in experimental mode) that run in secure Docker containers
● Channels ensure that only the participants involved in a transaction see the
transaction

43. Hyperledger Fabric capabilities
10
Hyperledger Fabric is a unique implementation of distributed ledger technology (DLT) that delivers
enterprise-ready network security, scalability, confidentiality and performance, in a modular
blockchain architecture. Hyperledger Fabric delivers the following blockchain network capabilities:
✓ Identity management
✓ Privacy and confidentiality
✓ Efficient processing
✓ Chaincode functionality
✓ Modular design

44. Hyperledger Fabric Network
Peer
Fabric
Certificate
Authority
Organization (MSP)
Peer
Peer
Ordering Service
Peer
Peer
Peer
Client Applications
Fabric SDK
Web APIs Integration APIs
User Interface (Mobile, Web)
Third Party System
PeerCrypto Security
Storage
Connection Profile Load Balance / Failover
Fabric Model

45. Hyperledger Fabric Network
Client Applications
Hyperledger Fabric Java SDK
Rest APIs (Spring)
User Interface (Ionic)
Peer
Crypto Security
Storage (AWS
S3)
Connection
Profile
Load Balance / Failover
Demo Architecture
h2
Docker Swarm
AWS
Instance
AWS
Instance
AWS
Instance
Organization
Peers
Organization
Peers
Organization
Peers

46. ChainDigit Fabric
Toolset
Web UI
Rest API
CLI
Hyperledger Fabric
CLI
Hyperledger
Blockchain Explorer
Docker CLI/Rest
Hyperledger Fabric – The tools
Hyperledger
ComposerHyperledger Cello

47. Demo
Demo

48. 15
Leading Enterprise Blockchain Advisory & Consulting Firm
Chaindigit.com/trainings
Hyperledger Blockchain Training
Montreal Aug 30 & 31, Toronto Sep 6 &7, New York Sep 20 & 21, Boston Sep 27 & 28

49. 16
WHO WILL YOU
TRUSTWITH YOUR TRUST NETWORK?

50. 1
DSDT Meetup
is 1-year old.
Happy Birthday !!

51. Thanks to all DSDT members
2
• From 0 to 2200+ members in one year
• 1 meetup per month, more than 20 topics presented
May 2017 June 2018

52. Thanks to all the speakers
3

53. Thanks to all the volunteers
4
• Meetup topics, selection, planning, preparation …
• Logistic, setup, cleanup …
And much more…
And thanks to our sponsor

54. And the winner is……
5
?

55. Merci / Thank You
6
@jdalabsmtl
Data Science | Design | Technology
(Check for next DSDT meetup at https://www.meetup.com/DSDTMTL)