1.
© For internal use1
Intégrez MultiChain à votre projet Java
en quelques minutes

2.
© For internal use2
Moi o BEPC
o BAC S (option SVT)
o DEUG MIAS
o Diplôme d’ingénieur de l’E3I (dernière promo)
o Doctorat Science spécialité Informatique
o Apside TOP
o Effigie/Chorégie/MGEN Technologies
o Coface Services/Ellisphere
o Worldline
o Projets paiement
o R&D (BlockChain)

3.
© For internal use3
Légitimité à parler de la BlockChain ?

4.
BlockChain

5.
© For internal use5
BlockChain ● Definition

6.
© For internal use6
BlockChain ● Features

7.
© For internal use7
BlockChain ● Smart contracts
• Protocol “in the middle of” the BlockChain
• Manages transactions
• Fees can be needed
• Used as computer programs
• Autonomous but not automatic
• Smart filters vs Smart contracts

8.
© For internal use8
BlockChain ● Transactions
#txid09…45 / output 1
#txid10…46 / output 5
#txid11…47 / output 0
[ Data ]
output 0 : address0 / value0
output 1 : address1 / value1
output 2 : address2 / value2
output 3 : address3 / value3
#txid13…42
OutputsInputs

9.
© For internal use9
BlockChain ● Blocks
#Block49
Ref : #Block48
Tx :
#txid132456897
#txid132456975
#txid132456801
#txid132456954
#Block50
Ref : #Block49
Tx :
#txid324568976
#txid324569752
#txid324568014
#txid324569545
#Block51
Ref : #Block50
Tx :
#txid532456897
#txid532456975
#txid532456801
#txid532456954
ck47
56826
56911
56819
56978

10.
© For internal use10
BlockChain ● Network

11.
© For internal use11
BlockChain ● Project
« I want to do a BlockChain Project ! »

12.
WoShaM
Service Usage Manager

13.
© For internal use13
WoShaM ● Services
▶ 3 kinds of services :
– Monthly Service : Subscription, from a start date to end date, you can use
it when you want, it costs to you even if you don’t use it.
– Service by Ticket : Send a ticket to use the service, the ticket defines the
conditions of the service.
– Timely Service : Always opened for you, you pay for the time you use it.

14.
© For internal use14
WoShaM ● Population
▶ 2 kinds of user :
– Providers propose Services
– Customers use Services
▶ Providers create service definition in the BlockChain, the service is registered in
a public Catalog, anyone can request for services … anyone can be a provider (if
you have a service to propose)
▶ Customers can find services in the Catalog and can request for a particular
service. Coin representing the service are sent to the Customer.

15.
© For internal use15
WoShaM ● Service usage management
▶ Usage depends of the kind of service :
– Monthly Service : what is the period with the unit of Asset representing the
service in the user’s wallet ?
– Service by Ticket : how many units of the Asset are used ?
– Timely Service : one unit of Asset is sent at the beginning of the usage and
is sent back, at the end of the usage. How many time between the two
transactions ?

16.
© For internal use16
WoShaM ● Interest
▶ Variety of cases:
– A lot of customers
– A lot of providers
– A lot of services
– Regular changes of service status
▶ Complete with tools to analyze and follow activity (view by customers and
providers)

17.
© For internal use17
WoShaM ● MoBlo
▶ MoBlo : Modélisation pour BlockChain
– https://blog.worldline.tech/2018/01/10/moblo-fr.html
– https://github.com/SimplyUb/MoBlo-FR
▶ MoBlo : GUI
– https://github.com/SimplyUb/MoBloGUI

18.
Let’s do it ! (?)

19.
MultiChain

20.
© For internal use20
MultiChain ● What ?
• A Blockchain (Bitcoin fork)
• JSON-RPC API commands
• Version Beta 2.0.1 (2018/12/19)
– Premium version to come
• System Requirements
– Linux (64-bit), supports Ubuntu 12.04+, CentOS 6.2+, Debian 7+, Fedora 15+,
RHEL 6.2+
– Windows: 64-bit, supports Windows 7, 8, 10, Server 2008 or later
– Mac to come
– 512 MB of RAM / 1 GB of disk space

21.
© For internal use21
MultiChain ● Why ?
• A lot of Blockchain Assets for training
• Easy to install (5’), easy to use
– Good way to learn
• Little configuration
• Worldline Partner !!!

22.
© For internal use22
MultiChain ● How ?
• Training Tool (by Worldline R&D)
• MultiChainJavaAPI (by Worldline R&D)
RPC
Serveur

23.
Let’s do it ! (?)

24.
Atos, the Atos logo, Atos Codex, Atos Consulting, Atos Worldgrid, Bull, Canopy, equensWorldline, Unify,
Worldline and Zero Email are registered trademarks of the Atos group. March 2017. © 2017 Atos.
Confidential information owned by Atos, to be used by the recipient only. This document, or any part of
it, may not be reproduced, copied, circulated and/or distributed nor quoted without prior written
approval from Atos.
Thank you
For more information please contact:
hubert.marteau@worldline.com