►
Description
A virtual meetup hosted by Hyperledger Libya featuring a discussion on the Hyperledger Fabric architecture and learning more about its different components with Mr. Khaled Fituri IBM Territory Sales Manager, and Mr. Hicham Benbella technical leader at IBM Morroco to walk us through the IBM Blockchain Platform.
More about the event is at: https://www.meetup.com/Hyperledger-Libya/events/273983557/
----
Hyperledger – Open Source Blockchain Technologies
Hyperledger is an open source community focused on developing a suite of stable frameworks, tools and libraries for enterprise-grade blockchain deployments.
It serves as a neutral home for various distributed ledger frameworks including Hyperledger Besu, Fabric, Sawtooth, Indy, as well as tools like Hyperledger Avalon, Cactus and libraries like Hyperledger Aries, Ursa. Learn more about Hyperledger projects: https://www.hyperledger.org/use
Case Studies: https://www.hyperledger.org/learn/case-studies
Training & Certification: https://www.hyperledger.org/learn/training
Tutorials: https://www.hyperledger.org/use/tutorials
Webinars: https://www.hyperledger.org/learn/webinars
Events: https://www.hyperledger.org/events
Vendor Directory: https://www.hyperledger.org/use/vendor-directory
Subscribe to the Hyperledger Newsletter: https://www.hyperledger.org/newsletter
Follow-us on Twitter @Hyperledger
Learn about Hyperledger Membership: https://www.hyperledger.org/about/join
#Hyperledger #HyperledgerMeetups #Blockchain
A
A
A
Is
also
joining
us
today
from
ibm.
Morocco
is
the
client
technical
leader
in
ibm.
North
africa
he's
a
client
technical
leader
for
the
banking
industry
at
ibm
and
his
in
his
role.
He
guarantees
technic
the
technical
structures,
the
architecture
of
the
ibm
solutions,
including
hardware,
software
and
services.
A
Mr
wimbella
joined
ibm
in
2014
as
a
solution
manager
for
ibm
business
analytics
platforms.
He
led
number
of
solutions
deploying
number
of
solutions
for
international
clients
in
europe,
north
america
and
middle
east,
covering
various
industries,
telecom,
financial
sector
and
public
sector
prior
to
joining
ibm.
Mr
wimbella
was
at
ngahr
an
hr,
outsourcing
and
publishing
company
where
he
served
multiple
roles
as
a
consultant,
I.t,
architect,
pre-sales
consultant
and
project
manager.
A
B
A
A
A
The
way
how
it's
constructed
is
that
transactions
are
received
from
different
clients
or
users,
and
those
transactions
are
getting
composed
together
into
a
single
what
they
call
it
block.
This
block
will
construct
of
a
number
of
transactions
that
will
be
linked
to
other
blocks,
and
all
of
that
is
done
from
through
some
cryptographic
functions,
specifically
hashing,
so
each
block
is
linked
to
the
previous
block,
and
the
next
block
is
linked
to
the
previous
block
to
construct
this
chain
that
will
ensure
that
data
cannot
be
changed
as
more
transactions
are
added
to
the
ledger.
A
As
we
said,
it's
a
database,
but
there
is
definitely
some
measure.
Differences
first
thing
is
data
integrity,
so
records
that
are
added
in
blockchain
cannot
be
altered,
while
in
database
vehicles
can
be
deleted
or
altered.
The
audit
trail,
which
is
one
of
the
major
let's
say,
features
that
all
actions
are
visible.
You
can
trace
it
back
to
the
very
first
origin
of
when
the
transaction
happened,
but
in
database
only
administrators
can
have
this
view
on
actions
and
even
logs
can
be
altered
or
changed
over
time.
A
The
only
thing
maybe
with
blockchain,
especially
specifically
one
kind
called
the
public
blockchain,
is
that
adding
records
can
take
some
time
while
in
certain
systems,
specifically
the
one
that
we're
talking
about
today,
hyperledger
fabric,
it's
it's
reduce
it
to
a
few
milliseconds
and
the
same
in
database
records
are
added
in
in
a
few
milliseconds
to
the
database
main
elements
of
blockchain
technology,
public,
key
cryptography
and
hashing
function.
So
cryptography
is
a
core
technology
using
blockchain
public
key
cryptography
is
used
to
build
identities
of
the
users
and
hashing
functions.
A
So
there
are
three
types
of
blockchain
in
terms
of
how
to
be
deployed
either
public,
which
is
a
kind
of
blockchain
that's
available
to
everyone.
Everyone
can
join,
the
software
is
definitely
open
source
and
everyone
can
create
a
node
and
join
the
the
network.
So
this
is
like
the
major
blockchain
networks
for
cryptocurrency
that
we
know
of
such
as
bitcoin,
ethereum
and
and
others
permissioned,
which
is
a
blockchain
technology,
blockchain
type.
Where
few
organizations
agree
to
build
the
network.
A
Let's
say
a
few
banks
would
like
to
build
a
network,
let's
say
for
clearance
system
or
something
so
this
is,
can
be
a
permissioned
network,
where
only
participants
that
are
no
one
can
join
the
network
or
a
private,
which
is
can
be
a
type
of
blockchain
that's
available
within
an
internet
within
a
single
enterprise.
Let's
say
an
hr
system,
for
example.
A
A
Also
transactions
can
be
anonymous
and
most
of
these
transactions
transactions
are
cryptographically
cryptographically
secured
with
transparency
specifically
in
public
blockchain.
All
of
these
features
enable
a
model
of
trust
that
can
enable
different
participants
to
streamline
different
business
operations
that,
in
the
current
systems,
would
require
more
auditing,
more
reconciliation,
etc.
A
So
the
best
maybe
analogy
to
bring
blockchain
to
people
coming
from,
maybe
I
t
and
telecom
background
is
that
there
is
parallel
between
what's
blockchain
and
tcpib.
Both
are
revolutionary
in
terms
of
how
they
will
transform
the
the
internet,
so
tcpib
brought
us
to
what
they
call
it.
Web
2
and
blockchain
will
bring
us
to
what
what's
known
as
web3,
so
tcpip
enables
low-cost
connections.
A
Blockchain
also
will
enable
low-cost
financial
transactions
and
payments.
Tcp
ib
enables
bilateral
messaging
such
as
emails,
for
example,
blockchain
will
enable
bilateral
financial
transactions,
and
what's
the
main
thing
here,
is
that
while
tcp
ib
enabled
the
exchange
of
information
freely
and
more
openly,
blockchain
will
enable
the
exchange
of
value
more
freely
and
more
openly.
A
A
So
anyone
would
like
to
consider
start
learning
about
blockchain,
two
things:
infrastructure
which
is
today.
We
are
talking
about
hyperledger
fabrics,
so
that's
part
of
it
and
then
smart
contracts
which,
how
to
code
the
business
rules
into
a
smart
contract
deployed
on
a
blockchain
to
automate
certain
business
processes.
A
Digital
identity
is
also
one
of
those
of
those
examples,
and
even
in
renewable
energy,
where
people
can
trade
the
generated
energy
among
the
different
participants.
So
just
quickly
going
through
some
examples.
Let's
say
central
bank
digital
currency,
which
is
a
hot
topic
nowadays,
where
the
central
bank
will
issue
digital
currency
and
the
commercial
banks
will
start
to
enable
users
to
maintain
their
own
wallets
for
this
digital
digital
currency,
in
addition
to
having
maybe
some
anti-money
laundering
authority
or
verification
of
users,
etc.
A
One
example
where
one
of
hyper-ledger
platforms
called
hyperledger,
however,
was
used
in
the
cambodia,
and
they
were
built.
They
built
a
trial
for
a
central
bank,
digital
currency
and
having
a
considerable
performance
with
around
1000
transactions
per
second
also
in
financial
markets,
where
banks,
regulators
or
stock
market,
let's
say,
authority
and
brokers,
can
also
participate
in
one
network
to
enable
trading
of
different
financial
instruments
such
as
over-the-counter
derivatives
or
bonds
or
credits,
etc.
B
Okay,
thank
you
ahmed
for
the
starting
up
this.
By
doing
that,
I
don't
wanna
do
much
talk.
I
will
leave
it
to
hisham
to
take
you
through
the
slides
and
do
the
detailed
talk
about
the
blockchain
and
ibm
platform
for
blockchain.
As
he's
the
expert
on
that
I'll
just
say
a
few
words
I
mean
myself
two
years
ago
when
I
was
when
I
hear
blockchain
theorem.
The
first
thing
came,
to
my
mind,
is
the
cryptocurrency.
That
was
the
only
use
case.
I
I
thought
is
for
blockchain,
but
now
I
can
see.
B
Blockchain
use
cases
are
everywhere
almost
in
each
industry.
There
is
a
blockchain
use
case.
Some
are
very
visible.
Some
will
come
later,
but
this
is
where
we
are
moving,
and
this
is
the
trend
I
see
I'll
just
share
my
screen
to
show
you
something
I
mean
for
the
people
who
interested
to
learn
more
about
what
ibm
is
doing
on
the
blockchain.
B
You
can
go
to
the
website
developer.ibm.com
and
here
you
will
see
different
technologies.
Ai
analytical
and
blockchain
is
one
of
them.
So
if
you
go
to
the
blockchain,
you
will
learn
a
lot.
You
will
find
the
basic
about
the
blockchain
abc
and
moving
on
to
the
developer
level,
and
you
will
see
a
lot
of
what
ibm
is
doing
in
the
blockchain
domain.
B
B
C
C
C
I
have
the
bloodshed
blockchain
subject
in
north
africa,
I'm
leading
it
for
for
ibm.
So
today's
presentation-
I'm
I
rather
you
know,
try
to
be,
as
you
know,
straightforward
as
possible.
Do
not
I
mean
do
not
hesitate
to
to
interrupt.
If
you
have
any
question
we
can,
we
can
solve
it
out
right
away
and
then
we'll
we'll
leave.
C
Okay,
great
so
to
put
for
to
put
everyone
in
the
you
know
in
the
right
context.
This
is
the
presentation
that
you're
going
to
see
as
part
of
a
you
know
a
series
of
presentations
that
has
been
developed
by
ibm
in
order
to
you
know
to
talk
about
blockchain,
to
explain,
blockchain,
and
you
know
from
either
from
the
business
side
or
the
technical
side.
This
is
the
technical
series,
and
this
has
multiple
chapters.
C
We
will
mainly
focus
on
the
first
one,
which
is
the
technical
introduction
and
how
to
use
the
ibm
blockchain
platform,
and-
and
you
know,
if
there
is
interest,
we
can
maybe
schedule
another
call
for
the
for
the
other,
like
the
how
to
model
the
blockchain
application.
What
are
the
best
practices
to
you
know
to
have
in
in
head
when
you
are
designing
an
architect
and
a
blockchain
platform?
So
that's
that's
about
it.
D
C
C
If
there
is
any
question
we
will
go
further
up
and
and
then
go
to
the
blockchain
platform,
so
yeah
the
you
know,
as
ahmedabad
said,
the
the
blockchain
solution.
If
we
try
to
make
the,
I
would
say
the
parallel
with
what
we
are
used
to
on
on
ig
systems,
we
have
like
data
structures,
we're
we're
used
to
that
algorithms,
we're
we're
used
to
that.
We
invoke
algorithms
or
functions.
C
We
we
model
pretty
peer-to-peer
network,
or
at
least
we
we
work
with
this
connection,
open
sockets,
to
different
businesses
to
different,
you
know,
interactions
and
and
integration
and
drivers,
and
then
we
we
have.
We
have
partners,
so
this
is
you
know,
assets
would
be
the
data
structures
contracts.
C
Are
the
algorithms
like
what
what
is
needed
in
order
to
to
validate
a
transaction
and
and
yeah,
so
the
transaction
would
be
when
we
do
invoke
this
algorithm
or
this
function
and
the
you
know
the
business
networks
are,
the
you
know
is
the
where
the
value
is
created
and
and
as
and
the
participants
are.
You
know
the
different
peers
in
in
this
in
this
business
network.
C
So
I
I'd
I'd
like
to
to
start
with
the
with
this
situation,
or
example,
about
a
consensus,
and
you
know
a
simple,
simple
explanation
of
how
does
blockchain
work.
So
we
are
here.
We
are
like
okay,
we
are
either
one
of
the
audience.
We
we
have
the
audience
all
those
parts,
all
those
blue
dots.
Then
we
have
this
mathematicians
with
the
the
big
dots
with
m's
and
the
nvd
presenters.
C
C
C
And
then
the
presenter
would
collect
every
mathematician
signed
response
and
then
we
will
have
to
distribute
the
copies
of
the
same
answers
to
every
member
of
the
you
know
every
member
of
the
audience.
So
when
every
you
know
every
audience,
member
agrees
that
the
answer
is
is
the
right
one.
There
is
a
consensus
so
that
that's
that
that's
that's
about
it,
so
we'll
just
okay!
This
is
the
participant
that
that
that
we
have
so
the
the
the
problem
which,
how
much
mathematician?
C
Should
the
presentation
presenter
ask
so
that
the
validation
would
not
be
costly
to
the
you
know
to
the
different
participants,
because
at
the
end
of
the
day
there
is
you
know,
we
all
know
that
there
is
a
a
processing
power
that
would
be
consumed
each
time
a
consensus
is,
you
know,
is
reached
and
how
many
mathematicians
need
to
to
agree
for
an
answer
to
be
to
be
correct
and
what?
If,
if
there
is
a
disagreement?
C
So
that's
that's
the
the
practical
problem
that
that
would
happen,
and
this
is
where
we
will
put
a
policy
that
would
say:
okay.
This
is
how
we
do
agree
on
a
good
answer.
This
is
this
is
the
conditions
that
would
make
a
good
answer
for
us
and
that
that
will
characterize
it.
So
this
is,
you
know
an
example
would
be
that
you
know
we
can
agree
that,
maybe
all
mathematicians
must
agree
or
we
can.
We
can
say
okay,
this
is
only
the
majority
or
maybe
the
the
two
thirds.
C
This
policy
would
be,
depending
on
the
network
and
the
business
network
that
that
will
be
putting
on
on
the
blockchain,
and
this
is
where
the
governance
of
a
blockchain
would
be
uni
paramount.
In
order
to
have
the
the
right
policy
in
in
front
of
us-
and
this
is
at
the
end
of
the
day,
what
we,
what
will
permit
the
the
transaction
to
be
involved.
C
So
a
transaction
would
be
we
can,
we
can
be
describing
it
as
a
change
in
the
system
right.
A
transaction
can
can
not
be
only
as
maybe
as
as
khalid
has
told
you
about
the
the
the
the
cryptocurrency
that
we
say.
Okay,
the
transaction
is
a
sending
x
number
of
whatever
cryptocurrency
to
be
a
transaction
is
really
a
change.
You
know
on
an
entry
in
a
system,
a
change
in
in
a
state,
so
it
could
be
like
a
change
in
in
in
a
bank
balance.
C
C
It
does
sign
it,
but
maybe
it
would
have
required
some
other
validation,
maybe
by
the
government
or
some
other
entity,
or
you
know
a
ministry,
for
example,
that
that
would
sign
this
diploma
as
well.
So
so
that's
about
the
the
change
in
here
is
to
allow
this
multi-party
transaction,
so
a
transaction
would
not
be
valid
unless
it
is
signed
by
all
the
people
that
needs
to
be
signed
and
and
again
this
is
a
policy
that
will
be.
C
C
C
I
would
say
basic
reason
is
that
no
business
network
would
wants
like
the
the
or
would
wanna
see
the
value
of
of
them
doing
business
so
making
transaction
with
each
other
linked
to
a
currency.
That's
you
know,
that's
fluctuating.
So
today
making
a
transaction
is,
I
don't
know,
I'm
just
saying
a
number
out:
there
is
one
dollar.
C
Maybe
today
it
will
be
10,
maybe
the
next
day
it
will
be
five,
then
15,
and
you
know
because
the
business
like
to
be
all
to
to
see
or
to
forecast
their
revenue
and
their
costs.
Well,
that's
not
really
a
good
idea
for
for
the
mining
to
to
have
to
have
this.
This
course
that
will
be
fluctuating
fluctuating.
C
So
yeah,
so
let's
go
into
the
different,
the
different
concepts
and
components
that
are
used
with
hyperledger
fabric.
So
in
in
this
you
know
in
this
slide,
you
you
are,
we
are
seeing
an
organization
see.
This
is
a
an
organization
which
is
organization
one.
It
has
beers,
it
has
ledgers,
it's
it
has
I'll
go
to
the
channels
after
it
has
an
application
policies,
smart
contracts,
certificates
authority
and
ordering
services
it
does
and-
and
then
you
you
have
all
the
channel
is
what
is
governing
governing
the
pace.
C
We
might
want
our
organization
if
we
are
a
bank,
for
instance,
and
we're
making
like
business
with
other
banks,
but
on
the
other
hand,
I
am
also
a
bank
which
has
subsidiaries,
and
I
want
to
be
connected
on
a
blockchain
with
other
banks
on
the
central
bank,
but
also
I
also
want
to
be
connected
with
with
our
subsidiaries
on
a
blockchain
for
another
use
case.
So
I
wouldn't
want
to
have
like
locate
those
those
are
the
pays
for
the
banks
that
those
are
the
pays
for
my
subsidiaries.
C
C
I
want
to
have
a
node
in
my
data
center
or
I
want
to
own
the
node
that
will
might
be
on
the
cloud,
but
that
will
be
mine
and
I'll
be
managing
managing
it
or
there
is
maybe
an
organization
saying,
okay,
I
would
need
multiple
nodes,
because
you
know
I
need
to
be
a
a
much
major
part
of
the
trust
that's
on
on
the
network.
So
I
I
want
to
have
my
weight
so
to
say
in
in
the
overall
trust.
Oh
there
is
an
organization
say:
okay,
I'm
I'm
good!
C
I
can.
I
can
be
a
part
of
this.
You
know
of
this
network,
but
I
don't
need
any
any
ps,
so
I
will
have
an
application
that
will
connect
me
to
to
the
blockchain
network,
but
I
I
don't
want
to
have
a
pair
which,
which
is
based
with
me.
So
really
there
is
no
set
rule,
even
the
consensus.
It's
not
set
with
hyperledger
fabric.
C
There
are
multiple
consensus,
algorithms
that
we
can
be
using,
so
it
depends
on
the
you
know,
really
on
how
we're
architecting
it
on
the
trust
that
exists,
actual
trust
that
exists
today
with
the
you
know,
with
the
between
the
different
participants
of
this
network,
so
that
that's
where
it
is
really
important.
So
what
we
are
seeing
today
is
different
paths
that
we
can
play
with
on
on
our
architecture.
C
So
the
the
policy
is
is
what
is
permitting
this?
The
fact
how
how
we
do
validate
a
you
know
how
we
do
validate
the
transaction,
so
it
serves
like
the
the
organization
right
or
a
constitution,
or
you
know
it's
really
the
basis.
The
genesis
of
of
this
of
this
network-
and
it
is
said,
normally
the
use
cases
that
I've
seen
is
that
usually
it
will
be
set
by
a
consortium
of
the
different
parts
of
the
network,
the
different
stakeholders
of
the
network.
C
They
will
get
together
and
say:
okay,
this
is
how
our
policy
should
look
like.
This
is
how
we,
we
will
be
doing
it
and
the
any
change
in
the
policy,
because
it's
possible,
you
know
that
rules
change,
that
something
needs
to
be
updated,
so
it's
not
written
in
stone,
but
the
the
the,
I
would
say
the
governing
body
of
this
blockchain
network
will
will
make
the
majority,
maybe
of
our
or
organization,
agree
on
this
change,
or
maybe
that
all
organization
must
agree
on
on
this
change.
C
C
It
is
really
comprised
of
two
data
structures,
so
there
is
the
blockchain
as
we
know
it.
So
as
with
the
the
same,
the
same
figure
that
that
ahmed
has
been
showing
in
in
his
presentation
we'll
have
like
a
set
of
blocks
which
is
linked
to
one
another,
holding
some
information,
and
then
we
have
word
states
what
we
call
in
hyperledger,
the
the
word
states.
C
Let
me
maybe
explain
in
in
the
blockchain,
as
I've
said,
you
have
a
set
of
blocks
I'll
give
an
example.
If
we
go
with
the
you
know,
the
the
use
case,
the
most
common
use
case,
which
is
cryptocurrency
each
one
of
us,
has
a
wallet
they
have.
You
know
a
number
of
crypto
currency
on
their
wallet
and
they
will
make
you
know
transaction
between
one
another
in
the
blockchain.
What
information
would
be
would
be
integrated
in
this?
Blockchain
is
that
a
made
to
be
five
five
currencies?
C
C
It
doesn't
exist
simply
and
plainly
on
the
blockchain
they
if
we
need
to
to
see
or
to
know
what
is
the
the
you
know
on
the
wall
and
how
much
a's
a
has
of
a
coins.
We
need
to
make
the
the
the
sum
of
all
the
transactions
that
has
been
made
in
the
blockchain.
So
all
the
different
blocks
in
which
a
do
do
appear
to
see.
Okay,
he
did
receive
in
the
genesis
50
coins.
Then
he
sent
five.
C
C
This
information
would
be
present
on
the
word
state.
This
is
what
word
state
is
about.
It
is
having
a
descriptive
information
and
it
is
of
the
of
the
responsibility
of
the
blockchain
network
of
hyperledger
to
make
sure
that
the
word
state
is
in
line
with
you
know,
with
the
information
that
has
that
are
on
the
blockchain.
C
So
so
this
is
about
the
blockchain
and
the
word
state.
The
smart
contracts
read
and
write
from
the
word
states,
so
the
sort
procedures
and
it's
in
the
in
the
benefits
of
the
performance
and
the
the
application
submits
the
transactions
to
the
you
know
to
the
to
the
pa,
which
will
indulge
and
validate
it
and
then
put
it
on
the
blockchain,
but
also
it
will
update
the
the
word.
C
C
D
I
would
like
to
go
five
slides
back
to
the
introduction
slide
of
the
components.
I
believe
yes,
this
one.
So
I
have
a
question
about
the
ordering
service
which
I
don't
I
did
not
actually
understand
the
purpose
of
the
ordering
service
and
they
have
a
problem
in
making
the
correlation
between
the
policies
and
the
smart
contracts.
So
the
policies
as
far
as
the
explanation
goes
in
the
following
slides,
is
like
the
authentication
of
the
validate.
D
Now
the
application
as
well
is
a
little
bit
strange
because
the
application
is
it
a
simple
interpretation
of
the
smart
contract
or
a
different
use
case
using
the
same
smart
contract.
That's
the
second
question.
The
last
question
is
about
database,
so
the
database,
is
it
updated
on
each
transaction
or
is
it
synced
or
does
every
peer
have
its
own
policy
on
how
to
update
database
and
is
the
operations
or
the
submissions
of
the
applications
done
based
on
the
word
state
or
basically
the
database?
D
Or
is
it
done
based
on
the
ledgers
so,
for
example,
in
making
a
transaction
in
order
to
make
a
transaction
moving
some
money
from
account
a
to
account
b?
You
have
to
validate
that
account.
A
has
a
specific
amount
of
money
now,
in
order
for
the
peer
to
make
sure
that
that
account
has
that
amount
of
money,
does
it
go
through
the
world
state
or
does
it
go
through
the
transactions?
I
believe,
since
you
said,
they
reduced
the
timing
and
they
have
led
a
few
milliseconds.
C
Yeah
you're,
absolutely
right,
maybe
I'll
I'll
go
backwards
in
in
your
questions.
Indeed,
you're
absolutely
right
the
smart
contracts
in
order
to
see
or
to
make
sure
that
the
balance
is
present
before
making
a
transaction.
It
will
go
to
the
world
states
and
not
through
the
blockchain
because
of
performance.
In
order
to
make
sure
that
you
know
we
don't
we
don't
have
to
calculate,
because
you
know
me
on
on
for
for
bitcoin.
I
I
think
a
couple
or
you
know
couple
years
before
the
whole.
C
D
To
me
this
is
so
the
word
state
is
sort
of
like
a
derived
attribute
in
a
database.
It
still
doesn't
dispresent.
The
like
doesn't
just
contradict
the
entire
idea
behind
the
blockchains,
like
you're,
using
the
derived
attribute
in
a
database,
or
is
there
some
sort
of
policy
security
policy?
That's
enforced
to
make
sure
that
databases
are
synchronized,
because
the
word
states
has
to
also
match
between
different
peers
as
well.
Is
that
correct.
B
C
So
the
information
needs
to
be
the
same
across
all
the
different
players.
If
a
pair
is
is
moving
out,
then
then
there
are
policies
at
this
point
in
order
to
manage
the
pair,
which
is
4k,
which
is
going
another
way
and
understand
why
and
and
maybe
cut
them
from
the
network,
the
the
time
to
understand
what's
happened
and
then
once
they
do
come
back,
they
will
not
come
back
with
their
word
state.
They
come
back
on
a
new
copy
of
the
blockchain,
the
same
as
with
the
others.
C
C
That's
I
mean
all
of
this
I
mean
it
is.
It
is
what
hyperledger
is
doing.
You
know
in
the
you
know,
you
know,
behind
the
curtains
is
making
sure
you
know
as
with
their
policies
and
how
the
algorithms
work
is
to
make
sure
that
everything
has
the
the
the
very
same
copy
and
the
states
is
now
different
so
that
that's
the
basis
of
of
how
it's
functioning.
D
So
if
I
understand
correctly
the
answer
to
the
question
before
this,
I
believe
this
also
answers
the
questions
about
the
difference
between
the
policies
and
the
smart
contract.
So
they
replaced
the
brute
force
with
policies.
They
did
not
actually
place
it.
It's
just
a
smarter
way
of
validating
the
transactions
of
the
smart
contracts
based
on
the
policies
so
saying
all
your
peers
have
to
agree
on
the
transaction
and
the
transaction
is
defined
by
the
smart
contract.
Is
that
contract?
Is
that
correct.
C
C
Is
is
our
you
know
is
how
us,
as
users,
have
access
to
the
blockchain.
So
the
application
is
our
application
with
you
know
the
the
it's
the
where
we
do
call
the
the
the
blockchains
different
apis
and
different
calls.
This
is
from
where
we
are
doing
it
so
from
a
you
know
how
we
do
describe
them
in
this.
C
C
It
is
perfectly
fine,
you
know,
that's
what
that's.
Why
that's
why
we
are
here
in
order
to
to
understand
now-
and
I
hope
it's
clear
as
with
the
order
I'll
give
an
example
later
in
the
presentation
on
how
a
transaction
is
endorsed.
Maybe
it
will
help
you,
it
will
help
you
have
a
clear
understanding
of
what
what
are
the
order,
but
those
are
like,
I
would
say,
actors
which
are
not
part
of
an
organization
which
are
not
peers,
but
they
they
they
make
sure
of
the
synchronicity
of
all
these
transactions.
C
If
I
can
put
it
so
before
I
mean
after
everything
and
done
see
like
the
transaction
is
good.
We
understand
we
validated
and
all
you
know
the
different
steps
that
needs
to
happen.
Then
it
is
with
the
order.
They
will
send
the
the
order
to
the
different
peers
to
write
the
transaction
if
they
do
not
receive
the
order
from
like
the
page.
Do
do
not
receive
this.
They
will
not
write
it
even
if
they,
if
they
do
endorse
it.
B
C
C
For
instance,
you
know
that
the
car
one
is
stolen
or
has
been
speeding
where
in
instance,
so
and
and
then
we
have
also
the
the
the
the
choice
to
filter.
So
we
can.
We
can
filter
on
a
view
and
say:
okay,
I
want
to
see
all
the
cars
that's
that
are
the
year
before
20.
You
know
before
2000
the
year
2000,
then
you
know
all
this
information.
This
is
what
we
get
from
the
blockchain
system,
but
then
on
the
on
the
blockchain
itself.
C
This
is
how
the
what
you
will
be
able
to
see
like
transaction
one
by
car.
One
transaction
two
register
cut
three,
and
this
is
on
the
same
block.
Then
on
next
block
we
will
have
no
other
kind
of
information
which
are
written
in
there.
So
so
this
is
the
the
the
structure
of
the
you
know,
the
the
client,
the
client's
application,
the
client's
application
is,
you
know,
part
of
an
organization,
it
has
a,
and
this
is
really
important.
It
has
a
certificate.
C
You
know
because
it
needs
to
be
authenticated
before
it
is
able
to
do
anything
on
the
blockchain.
So
it
has
a
certificate
based
on
you
know
on
cryptography
is
the
base
of
a
blockchain
network,
so
it
will
connect
to
a
gateway
using
an
identity
from
a
wallet.
Then
it
will
select
an
available
network
and
smart
contract,
the
one
that
it's
it
can
be
connected
to,
and
then
they
will,
they
will
submit
the
transaction
and
check
for
the
responses.
C
If
it
is
validated
or
not
and
then
disconnects
from
from
the
the
gateway,
this
is
how
we
as
users,
you
know
as
developers
as
other
kind
of
you
know
the
like
the
operators,
administrator
and
so
on.
This
is
what
we
see.
You
only
see
the
application,
so
all
the
what
we
have
been
discussing
on
the
like
the
consensus,
the
interaction
between
the
different
peers
with
the
word
states
and
so
on
it
is,
it
is
completely
hidden
see
it
is
completely
hidden
from
from
the
application
itself.
C
So
the
for
this
is
a
example
of
how
the
application
is
queried
on
a
ledger,
so
they
they
will
query
their
own
organization
pair.
So
so
the
application
for
one
bank,
for
instance,
would
go
and
query
their
base.
They
would
not
go
and
query
the
ps
from
other
from
other
organization,
because
the
information
here
is
the
same
as
here
and
and
so
on.
This
we
should
be.
C
We
we
have
like
made
that
that
that
statement
already
and
each
one
would
would
be,
as
I've
said,
querying
the
the
ones
so
so
I'll
give
an
example
of
how
a
transaction
is
submitted
through
the
network.
The
first
one
I
like
we've
made
as
of
the
contract,
submit
transaction
ad
car
cartoon,
and
it's
make
it
will
go,
and
you
know,
connect
to
the
you
know
through
the
channel
to
the
different
to
the
to
the
to
the
page
in
order
to
create
a
multi-party
transaction.
C
C
B
B
C
I
do
I
can
provide
a
number
of
use
cases
that
that
are
today
and
onto
production
with
this
with
this
technology,
maybe
by
the
end
of
the
presentation,
if
we
have
some
time
I'll
get
to
that
in
order
to
present
you,
like
the
the
major
use
cases
that
that's
out
on
the
world,
what
we
need
to
make
sure.
Oh
I
I
I
understand,
and
you
know
the
your
position
in
which
proof
of
work
would
provide
this.
C
You
know
as
to
make
sure
that
or
what
motivation
would
have
appear
in
order
to
participate
in
in
this
network.
I
will
reply
to
you
that
you
know
it
is
about
trust
right
and
we
have
a
cost
of
trust
so
in
in
the
case
of
you
know,
cryptocurrencies
bitcoin,
to
know
to
not
name
it
or
other
cryptocurrencies
out
there.
There
is
a
cost,
which
is
the
you
know,
the
the
the
heat
and
electricity
consumption
that
would
come
into
all
those
different
notes.
C
B
C
I'm
getting
into
this
is
what
makes
I
mean
I'm
getting
to
that,
because
we
are
talking
on
the
case
of
you
know,
of
transactions
that
are
made
amongst
people
who
are
completely
anonymous
and
we
need
to
you
know
it's
it's
not
a
small
feat.
I
I'm
100
percent
there
to
you
know
to
make
two
people's
make
transactions
between
one
another.
That
don't
I
mean
we
don't
even
know
what
what?
What
is
the
first
letter
of
the
first
name
and
we
do
make
transactions
business.
C
You
know
we
do
send
them
money,
maybe
in
exchange
of
a
service
or
a
good
or
or
whatever
so,
and
it's
not
because
of
that.
But
what
is
hyper
ledger
fabric
is
about
is
about
permission,
networks,
business
networks
with
with
people
that
do
know
each
other
that
do
identify
with
each
other
that
have
a
reason
to
make
this
network
working.
So
that's,
that's
really.
The
difference
there.
A
A
There
is
a
level
of
trust,
that's
already
established,
because
it's
a
it's
a
network
between,
let's
say
banks
or
in
supply
chain,
it's
between,
let's
say
different
companies
that
exchange
goods.
So
there
is
a
level
of
trust
there,
but
there
is
still
the
need
for
blockchain
in
this
case
is
to
mainly
to
automate
the
business
process
and
ensure
that
data
is
recorded
and
cannot
be
changed
or
altered.
A
Yeah
yeah,
it's
more
about
yeah,
which
is
one.
Is
that,
like
more
open
to
everyone
to
join
the
other,
one
is
a
little
bit
restricted.
So
it's
usually,
as
hisham
said,
it's
a
consortium,
it's
a
business
network.
So
still
users
can
still
access
this
business
network,
but
based
on
some
rules
that
those
organizations.
A
C
Absolutely
absolutely
absolutely
andy.
The
objective
here
is,
is
you
know
different
as
making
maybe
a
transaction
with
each
other?
It's
sometimes
about
you
know
in
in
some
use
case,
because
it
is
slow
to
make
business
with
each
other,
because
if
each
one
of
us
or
each
one
of
the
business
participants
has
their
own
way
of
storing
the
data
I
might
have
like
okay.
This
is
how
I
saw
my
data.
C
This
is
the
data
that
is
important
to
me
and
the
other
part
or
the
other
party
has
you
know
the
the
information
is
different
or
the
how
they
are
so
in
data
and
if
we
do
not
agree
with
each
other,
it
takes
time
in
order
to
like
to
get
okay.
This
is
the
data.
This
is.
What
I
need
is
how
we
need
it
and
to
to
to
reach
an
agreement.
If
we
have
the
blockchain
network
amount,
you
know
between
us
will
have
the
same.
C
You
know
the
same
information
which
is
shared,
and
you
know
if
there
is
disagreement,
just
go
back
to
the
blockchain.
You
don't
even
need
to
talk
to
me,
so
this
is
how
we,
how
we're
basing
it
this
this
kind
of
of
in
in
information
that
we
need
or
of
use
cases
that
that's
that's
useful
on
a
a
you
know
on
the
business
network
as
opposed
to
be
able
to
make.
C
So
that's
where
this
cost
of
trust
would
be
different,
we'll
say:
okay!
Well,
maybe
we
we
we
know
each
other.
We
don't
need
to
go
all
the
way
to
to
approve
proof-of-work
kind
of
implementation.
Let's
make
it
maybe
less
less
costly
and
and
agree
on
a
set
of
policies
which
makes
us
happy
to
to
make
business
on
this.
C
C
No,
no.
Thank
you.
That's
a
very,
very
good
question.
I
I
like
that
and
always
like
to
to
be
to
to
debate
about
this.
Obviously
there
is
no.
There
is
no
right
or
wrong.
There
is
all
only
needs
and
and
requirements,
and
based
on
that,
we
need
to
architect
the
the
best
solution
I
mean,
even
even
with
hyper
ledger.
C
It
is
possible
to
implement,
for
instance,
because
you
know
the
consensus
algorithm
is-
is
not
set
in
stone.
We
can
change
it
based
on
the
the
network
that
we
have
in
front
of
us
and
we
need
to
architects
for
so
so
yeah.
That's
that's
about
the!
How
it
is
how
it
is
possible
here.
Maybe
if,
if
I
may,
I
was
I
was
talking
to
you
about
the
multiple
networks
and
the
multiple
the
multiple
channels
we
can.
C
We,
from
from
from
our
application,
be
able
to
connect
to
two
different
channels.
Let's,
let's
consider
channels
only
for
simplicity
at
this
point
like
different
different
ledgers,
so
each
one
is
is
a
different
ledger
with
different
sets
of
information
and
different
organization
can
be
part
of
of
that.
Using
the
same
the
same
pairs-
and
here
what's
what's
important-
is
that
each
one
of
the
nodes
like
each
and
every
one
of
those
needs
to
to
be
identified?
C
C
C
And
yeah
I
mean
this
is
this:
this
is
really
I
mean
our
ability
to
have
like
multiple
connection
options.
Multiple
you
know
in
in
a
gateway
be
able
to
to
connect
to
different.
You
know
for
have
availability
to
different
nodes.
This
is
a
really
simple
kind
of
application.
Example
that
will
permit
to
make
a
a
transaction
as
you
this
is.
This
is
really
straightforward.
C
C
C
The
different
inputs,
like
the
the
context,
the
sure
value
dates
and
face
value
in
here,
and
you
know,
interactive
interact
with
the
ledger
in
order
to
make
sure
that
all
the
conditions
are
met
before
a
you
know,
a
transaction
is,
is
validated
yeah,
maybe
maybe
before
going
out
to
the
ibm
blockchain
platform
into
ibp,
is
there?
Is
there
any
any.
C
C
As
an
on-prem
kind
of
solution
that
you
can
install
on
the
node,
you
know
on
your
own
data
centers,
which
is
one
maybe
of
the
you
know,
one
of
the
good
choices
that
you're
having
in
this
case.
So
basically
I
mean
blockchain
platform
is
based
on
hyperledger.
It's
not
only
hyperledger
in
the
sense
that
it's
permits
new,
or
it
facilitates
some
some
functions
with
hyperledger
that
that
would
need,
maybe
an
administration
operator
to
to
do
it,
so
it
will
permit
or
facilitate
out
of
the
box.
C
So
from
this,
the
the
ibm
blockchain
platform
solutions
are
built
on
that
solution.
If
you
are,
if
you,
if
you
are
familiar
with
that
and
maybe
we'll
get
to
that
later-
is
ibm
full
trust,
which
is
the
the
supply
chain
or
the
use
case
for
for
provenance,
so
provenance
of
a
of
goods.
You
know
edible
goods
from
the
farmer
to
the
supermarket
so
to
to
see
the
all
the
the
the
trace
of
that
of
that
food.
C
Then
you
also
have
the
the
maersk,
the
trade
length,
the
the
diverse
use
case
so
for
supply
chain,
like
you
said,
a
really
good,
really
good
use
case
for
blockchain,
and
then
you
have
ibm
worldwire,
which
is
a
you
know.
A
way
of
you
know
sending
sending
money
overseas
or
of
transporters
without
using
swift
and
and
so
so
that's
that's
one
of
the
solutions
that
ibm
did,
you
know
did
develop
and
they
they
they
would.
That
would
also
mean
that
it
it
is
proposed
to
their
client.
C
So
if
you
are
a
part,
a
custom
agency,
you
can
be
part
of
the
trade
lands
of
the
merc
supply
chain
solution.
Just
you
know,
by
being
subscribed
to
it
and
and
and
so
on.
So
on
top
of
that
you
have
the
ecosystem,
and
you
know
across
of
each
and
every
one
of
those
different
components.
You
have
ibm
services
with
expertise,
and
you
know
teams
that
will
make
or
help
from
the
ideation
to
the
to
the
production.
C
Absolutely
absolutely
really
I
mean
the
the
I
would
say.
Even
even
further
I
mean
the
digital
identity.
Use
case
is
a
is
very
important
or
very
useful
in
you
know,
in
in
the
case
of
the
blockchain,
because
of
you
know
the
trust
that
we
have
on
the
system,
but
also
about
the
our
control
of
the
data
that
is
possible.
C
So,
for
instance,
if
I
have
a
digital
identity
on
a
blockchain,
this
is
my
you
know
my
national
id
number
and
it
will
have
my
information
and
I
will
be
able
to
control
who
is
able
to
see
it
on
the
actual
matter.
It
also
could
have
my
you
know
my
medical
records
in
there.
If
I
need
to
share
it
with
the
doctor
or
hospital
while
I'm
sharing
with
them
for
them.
In
order
to
be
able
to
see
I,
I
can
also
revoke
the
access
to
that
information.
C
In
order
to
be,
you
know
to
to
be
approved
for
that,
and
if
I
have
my
digital
identities
on
the
blockchain
I'll
point
them
to
that
and
and
they'd
be
able
to
to
see,
approve
or
disapprove
whatever,
but
they.
I
would
not
need
to
to
make
all
the
this
process
each
and
every
time
with
the
same
papers
not
withstanding.
C
So
ibm
blockchain
platform.
It
is
based
on
kubernetes,
because
hyperledger
fabric
do
run
on
on
kubernetes,
and
it
is
it
is,
it
can
be,
you
know,
deployed
on
ibm,
ibm
cloud,
ibm,
conversion,
service
or
openshift.
It
can
be
on-prem
on
you
know,
and
other
clouds
like
aws
azure
or
google
cloud.
So
what
it
does
in
fact
give
you
on
top
of
hyperledger
fabric,
is
those
developer
tools
and
the
operator
tools.
C
C
C
Version
on-prem
version
different
class
version.
It
is
the
very
and
same
one
everything
is
is,
is
the
same
because
that's
where
ibm
is
coming
from
the
hybrid
cloud,
we
don't
want
to
have
different
flavors,
so
it's
it's
the
same
so
that
it's
the
very
same
experience
for
each
and
every
one
of
you
know
the
different
nodes
and
also
because
you
know
it
needs
to
be
inter
operable
from
a
different
standpoint.
C
C
This
is
how
it
looks
like
see
you
seen
that
you
know
you
have
your
notes,
your
pairs
based,
maybe
in
this
case
it's
on
ibm
cloud
so
in
it's
based
on
different
regions
with
one
organization,
so
there's
certificate
authorities,
orders
and
so
on.
So
this
is,
you
can
see
like
a
higher
level
view
of
every
one
of
those.
You
know
you
can
configure
your
infrastructure,
you
can
connect
and
manage
the
different
components.
The
policy
and
identity
management
is
here
and
even
like
the
smart
contracts
management
can
be
here.
C
C
C
So,
in
like
each
of
the
components
of
hyperledger
fabric
do
run
on
a
single
pod
or
a
single
container,
so
you
know
you
have
having
another.
It
is
a
container
and
an
init
node.
It
is
a
container
the
chain
code.
You
know
it
is
the
couch
gb
is
a
container
appear
as
a
container
and
so
on.
So
each
one
of
all
of
them
is
a
separate
as
a
separate
container
to
allow.
For
you
know,
I'm
not.
I
will
not
give
you
the
advantages
of
micro
services
here,
but
you
know
it
will.
C
Network
and
the
storage
would
be
you
know
like
on
persistent
storage
and
and
five
storage,
if
it's
at
most
sql
db,
for
instance,
so
yeah
I'll
go
to
the
end
of
you
know
of
this
first
part
of
the
presentation.
What
I
have
also
is
it's:
it's
not
a
demo,
but
it's
also
slide,
but
it
will
show
you
from
the
vs
code
point
of
view
how
to
do
create.
You
know
smart
contract.
How
does
so
it's
a
if
we
want?
C
D
A
C
So,
as
I
was
saying
it's
it's
only,
it
goes
onto
more
details
that
we
are
discussing
about
the
ibm
blockchain
platform.
It
is
you
know,
you're
having
the
the
vs
code.
It
is.
It
is
key,
in
fact,
into
the
developing
with
ibm
blockchain
platform,
and
you
know,
as
I've
said,
it
is
open
source
you
can.
You
can
download
it
on
your
own
machine,
download,
the
add-on
and
and
be
able
and
you're
good
to
go.
C
Then
you
have
in
the
the
ibm
blockchain
platform
console
as
we've
seen
it
and
it's
running
on
a
kubernetes
dashboard,
so
you
will
be
able
to
see
or
to
to
operate
your
cluster,
the
deployments,
the
different
balls
and
and
the
replicas
and
so
on.
So
this
is
this
is
what
you
need
to
do
in
order
to
manage
a
blockchain.
You
know
the
ibp.
C
C
C
So
you
can,
you
can
install
it
like
you,
go
to
the
to
the
extensions
and
install
ibm.
Blockchain
platform
is
right.
There.
It
has
some,
you
know
requirements
or
components
like
npm.
That
needs
to
be
installed,
not
g.
You
could
have
like
it
needs
x
code,
go
or
not
js,
it
will
install
it's
solid
for
you
just
for
you
to
be
able
to
have
ibp,
and
then
you
will
be
able
to
start.
C
You
will
have
the
this
is.
This
is
the
icon
of
the
ibm
of
the
ibm
blockchain
platform
right,
so
I'm
just
trying
to
have
a
pointer
this.
This
is
the
the
icon
of
ibm
blockchain
platform
you'll,
be
able
to
to
view
like
the
smart
contracts,
the
the
fabric
elements
like
the
gateway,
the
channels
and
so
on.
C
The
environments
and
the
wallets
in
here
and
and
also
you'll,
be
able
like
to
to
get
directly
on
some
tutorials
that
you,
you
will
have
the
you
know
the
ability
to
to
do
so
and
in
in
this
in
this
in
this
window,
you
will
have
the
the
logs
so
the
outputs.
So
here
here
you
connecting
submitted
transaction
and
so
on.
So
the
locks-
luck,
that's
gonna,
do
it.
C
C
C
So
this
is
how
we
test
the
the
smart
transfer,
we'll
right
click,
a
smart
contract
to
to
exporting
it,
and-
and
we
will
reveal
the
package
open
project
in
order
and
then
we'll
start
the
you
know
the
the
local
instance
in
order
to
install
and
instantiate
the
smart
contract
and
and
will
be
afterwards
connecting
to
the
gateway.
So
this
is
the
gateway
to
the.
As
we
said,
the
application
will
be
connected
to
the
gateway
in
order
to
get
to
the
to
the
channel,
and-
and
here
you
will
have
in
a
wallet.
C
So
this
is
where
I,
our
identity
is
sold
and
we'll
write
clicking
into
in
order
to
submit
a
transaction
yeah.
This
is
the
fabric
sdk.
This
is
where
we
are.
We
are
putting,
I
mean
all
of
those.
Are
you
know
in
the
tutorials
you
will?
You
will
see
a
line
of
codes
which
are
already
done,
but
this
is
where
we
do
require
the
fabric
network
or
the
fabric
sdk,
that
we
are
that
we
are
using
on
our
application.
So
this
is
a
node.js
application
that
we
are
using.
C
So
here
this
is
the
web
console.
This
is
the
ibm
blockchain
platform
web
console
again,
you
will
have
you,
you
can
have
access
to
tutorials
in
here,
which
are
really
nicely
done,
and
you
know
kind
of
hello,
world
tutorials
or
also
some
some
pretty
advanced
ones
in
order.
You
know
on
specific
use
cases,
and-
and
here
you
can
select
the
different
like
those
are
the
nodes.
This
is
the
channels.
This
is
the
smart
contracts.
C
This
is
the
wallet
organization,
the
users
and
the
settings
of
of
for
the
the
platform,
and
here
this
is
where
we
create
a
certificate
authority,
as
you
can
see
like
it
is
very
much
well
self-explanatory.
In
order
to
to
do
so
in
on
the
pair,
you
can
see
the
in
the
green
square.
You
can
see
the
head
of
a
node,
so
you
know
green.
It
is
running,
it
can
be
yellow.
C
It's
kind
of
you
know
to
get
your
irritation,
all
red
has
not
run
in,
and
you
know
the
idea
of
colorization
and
where
it
is
deployed.
So
this
is
where
we
do
create
and
import
additional
additional
nodes,
and
those
are
the
kind
of
details
that
we
were
having
on
the
node.
So,
for
instance,
we
will
have
in
the
location
the
the
version
of
the
hyperledger
fabric-
that's
used,
but
also
the
the
state
database.
Here
it
is
based
on
couchdb.
C
A
C
C
B
Yeah,
I
I
see
it
a
good
use
for
it
in
our
system,
especially
for
kyc,
know
your
customer
yeah.
That
would
be
a
good,
a
good
system
to
to
do
so
where,
where
else
do
you
do
you
think
the
this
technology
can
be
used
in
libya,
based
on
the
information
you
have
about
the
infrastructure
and
the
knowledge
and
the
quality
of
programmers,
and
all
that
or
the
lack
of
it?
Where
do
you
think
this
could
be
a
best
practice
where
we
really
need
it.
A
Given
the
situation
that
we
are
in
stock
market
exchange-
or
this
is
also
another
use
case,
but
even
in
in
case
of
land
registry,
we
know
the
situation
also,
libya
and
land
registry-
and
this
is
a
very
appealing
use
case.
I
think
some
countries
in
africa
are
really
targeting
the
use
of
hyperledger
fabric
for
building
land
registry
applications,
similar
situation
that
we
have
other
use
cases
education
like
for
verifiable
credentials.
A
B
D
C
Use
cases
that
can
be
benefit
from
blockchain.
It
is
true
that
you
know
there
is
a
huge
benefit
into
doing
so,
but
also
maybe,
on
the
other
hand,
I
would
say
of
the
of
the
specs
firm.
Is
that
not
maybe
not
all
solutions
are
are
possible
for
blockchain,
maybe
in
some
cases
it
can
also
be
beneficial
to
go
with
other
solutions
rather
than
blockchain.
We
we've
we've
seen
the
hype
happening,
but
now
the
solutions
that
stays
are
really
the
one.
C
That's
that
do
have
some
value
in
the
technology
being
used.
I
would
say
that
there
is
a
rule,
a
rule
from
from
ibm
from
our
number
of
of
implementation.
That
we
have
done
from
successful.
To
now
is
that
you
need
to
have
three
t's,
three
dimensions,
trust,
transparency
and
time.
If
a
use
case
would
benefit
from
any
of
those
three
dimensions,
then
blockchain
can
can
be
the
solution
if
those
are
the
three
dimensions,
even
better.
C
C
C
I
like
this
use
case
a
lot
because
you
know,
if
you
think
about
it,
the
number
of
suppliers
out
there
that
offer
points
if
you
buy
with
them
and
you
are
able
to
redeem
those
points
for
some
kinds
of
you
know,
goods
or
services
or
whatever
by
the
end
of
the
day,
and
if
you
think
about
it,
those
points
some
how
cryptocurrencies
or
digital
currencies
so
so
yeah.
This
is
really
really,
you
know
really
easy
use
case
and
then
yeah
information
sharing.
C
A
D
D
Three
questions
really
fast.
A
few
questions
are
about
the
business
side
of
the
or
the
business
side
of
the
applications
of
hypothesis
or
the
blockchains
in
general,
and
then
some
questions
that
are
technical,
I'll
start
with
the
technical
questions
first.
So,
regarding
the
multiple
blockchain.
So
as
far
as
as
I
understand
each
blockchain
is
is
built
on
its
own,
so
I
understood
that
different
peers
can
have
different
types
of
data
stored
within
the
same
blockchain.
D
However,
I
wanted
to
ask
in
case
there
was
another,
for
example,
blockchain
developed
that
has
a
correlation
to
the
first
one,
how
I
know
the
question
I'm
trying
to
find
the
best
words
to
describe
the
question,
but
I'm
trying
to
ask
if
we
can
integrate
two
blockchains
together
using
smart
contracts
or
policies
and
how
will
that
affect
the
first
blockchain
and
the
second
blockchain.
So
that's
the
first
question.
I'm
not
sure
if
you
want
me
to
ask
one
by
one
or
just
ask
them
all
and
then
wait
for
the
answer.
D
So
that's
the
first
question
now.
The
second
question
is
it's
the
modifications
of
the
altercations
on
the
policies
and
smart
contracts.
How
how
easy
is
it
to
modify
basically
transactions,
not
the
transaction
log,
but
the
policies
themselves,
all
the
smart
contracts
themselves,
and
is
that
feasible
by
the
you
know
the
storage
itself,
so
transactions
are
stored
in
a
specific
way.
In
case
I
alter
the
smart
contract
or
the
policies
can
the
can
the
change
be
cascaded
throughout
the
the
different
pairs
of
the
different
appears
in
the
network?
D
D
Some
some
of
the
use
cases
that
we
talked
about
here
are
business,
are
governmental
of
business
related,
for
example,
when
we
talk
about
the
central
bank,
digital
currency
or
the
digital
identity,
some
of
these
use
cases
are
correlated
in
order
to
have
one.
Sometimes
you
have
to
ensure
the
integrity
of
the
data
that
you're,
starting
with
you
have
to
have
the
other.
The
prerequisite
prerequisition
aspect
is
is
important,
so,
for
example,
to
ensure
that
transactions
are
done
correctly.
You
cannot
base
them
on
the
data.
D
That's
available
before
the
blockchain,
so
you
have
to
have
the
digital
identity
in
a
blockchain
first
and
then
move
on
to
the
the
second
application,
which
is,
for
example,
the
the
the
land
registry.
So
that's
one:
how
is
it
that
I'm
not
sure
governments
or
or
other
people
who
have
used
this
technology
before?
How
did
they
adapt
to
this?
So
the
prerequisites,
the
requisition
of
different
use
cases,
I'm
not
sure
if
the
question
is
is
is
related
correctly.
D
C
Broadly
adopted
is
through
two
kind
of
use
cases:
it's
the
digital
identity,
as
we
said,
the
fact
that
we
are
able
to
identify
each
and
every
one
of
us.
So
if
it's
you
know,
if
it's
there,
then
yeah
it
will
it.
It
is
the
first
step
I
would
say
the
second
step
is
the
the
digital
currency
so
to
say,
because
today
you
know
the
the
fact
that
the
all
the
business
is
is
based
on.
You
know,
on
goods,
and
you
know
value
being
transferred
from
a
person
or
organization
to
another.
C
Now
that
being
said,
it's
not
you
know
it's
not
an
end
to
means,
because
we
can
make
some
use
cases
right
now,
which
wouldn't
require
the
digital
payment,
but
would
require
maybe
an
alternative
way
of
identifying
people
which
is
okay.
At
the
moment
we
are
you
know
on
on
developing
this,
these
use
cases
and
moving
forward
because
we
have
a
number
of
parties
that
needs
to
be
involved
like
we
need,
like
the
government.
C
The
the
the
second,
the
the
second
question
about
about
the
the
the
policies
and
if
the
there
is
a
cascade,
you
know
in
fact
yeah
I
mean
it's
true
I
mean
if
we
don't
change
it,
it
will
cascade
to
the
others,
but
just
make
sure
we
need
to
understand
here
that
all
the
parties
need
to
agree
on
on
the
change
to
policy
before
it
is
implemented.
No
one
party
can
change
the
policy
by
itself.
A
A
C
Of
view
or
government
standpoints,
we
need
to
have
an
agreement
of
the
different
parties
in
order
to
to
be
able
to
change
those
policies.
The
third
question
about
the
interoperability
of
blockchains:
it's
this
current
research.
You
know
a
research
subject
in
order
to
make
like
this
intra
blockchains
internet
chains,
interchange,
connections,
and,
if
you
think
about
it,
it's
you
know.
C
If
they
are
able
to
do
so,
it's
then
it
will
be
like
the
internet
as
we're
saying
like
we're,
sharing
the
data,
because
you
know
it's
like
the
lands
that
we
come
up
with
tcp
in
order
to
be
able
to
connect
them
right.
So
so
it
could.
You
know
it
could
change
things
but
from
a
node
point
of
view,
so
a
node
can
be
connected
to
multiple
channels
or
multiple
blockchains,
so
to
say,
multiple
ledgers,
so
a
node
might
have
the
need
to
connect
to
different
and
make
a
change
in
two,
no
in
two
channels.
A
B
A
We
will
stop
here,
maybe
today,
as
I
said.
Unfortunately,
the
the
zoom
meeting
link
will
be
used
by
another
group
and
it
was
really
pleasure
to
have
you
hisham
and
khalid
and
also
pleasure,
to
have
everyone
here
today.
Such
an
interesting
discussion
and
the
plan
to
have
a
series
of
events
that
will
cover
high
volume
fabric
and
other
cloud
providers
on
what
they
offer
and
definitely
we
will
have
sessions
that
are
more
dedicated
towards
like
smart
contracts,
chain
code
and
other
platforms
like
hyperledger
indie.