►
Description
In this community meetup hosted by Hyperledger Budapest we will briefly introduce the EBSI (European Blockchain Service infrastructure) initiative that is being rolled out in a test phase in the EU countries. As part of the presentation, we will more deeply analyze some possibilities of DID (decenztalized identity) solutions and frameworks.
More about the event is at: https://www.meetup.com/Hyperledger-Budapest/events/276348248/
----
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
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#Hyperledger #HyperledgerMeetups #Blockchain
A
A
Just
I
won't
hold
it
very
on
a
very
long
term.
It's
due
to
two
reasons
for,
on
the
one
hand
I
mean
my
bandwidth
is
not
necessarily
the
best.
On
the
other
hand,
actually
I've
been
working
in
home
office
for
more
than
a
year,
so
it
might
be
not
so
practical
in
this
sense
you
know
I
mean
just
to
just
video
myself,
but.
A
A
little
bit
when
you
started
sharing
your
video
yeah
yeah,
I
was
afraid.
So
let
me
just
stop
my
video
and
then
probably
my
audio
will
be
really
good
again.
So
welcome
everybody.
This
is.
This
is
hyperledger
budapest,
it's
basically
a
community
blockchain
consortium,
blockchain
community
meetup
from
from
the
linux
foundation
and
then
hyperledger
foundation.
A
A
A
I'm
not
quite
sure
why,
if
that's
the
french
pronunciation
or
the
holland
one
so
I
usually
say
is
the
vbs
I
just
fc,
but
it
means
basically
the
european
blockchain
service
infrastructure
and
let
me
just
start
with
a
brief
disclaimer.
So
I'm
I'm
not
not
a
member,
and
I
I
can't
speak
on
behalf
of
you
know.
A
Infrastructure,
mostly
on
the
technical
side,
so
I
will
present
actually
the
the
technical
concepts
and
ideas
behind
the
european
blockchain
service
infrastructure,
and
so
the
main
reason
is
actually
that
I'm
interested
in
the
topic.
So
it's
not
gonna,
be
something
like
you
know.
It
says
picture
or
something
similar.
It
will
be
just
a
technical
concept.
Technical
introduction
for
the
for
the
most
important
concepts
of
the
of
the
european
blockchain
service
infrastructure.
A
A
We
public
permissionless
blockchains,
like
bitcoin,
followed
by
ethereum
like
five
years
ago,
and
we
got
something
might
be
as
prime
with
blockchains,
I
would
say,
private
blockchains
might
not
have
much
sense.
Basically,
because
I
mean
private
blockchain
is
something
which
is
a
blockchain
one
company,
which
user
usually
doesn't
really
have,
doesn't
really
make
sense.
I
mean
there
might
be
one
exception
if
you
want
to
create
something
as
a
byzantine
photograph
system,
but
I
mean
nevertheless,
even
in
such
a
case
I
mean,
I
think,
using
blockchain
in
just
one.
A
A
Wanting
to
share
information
or
business
process
on
any
kind
of
stuffs,
and
for
that
we
use
basically
a
consortium
blockchain,
and
this
might
be
a
new
category.
We
can
argue
that
what
we,
what
we
see
here,
is
a
kind
of
special
special
consultation
blockchain,
but
I
would
argue
it
might
be
something
more,
and
this
is
the
appearance
of
of
national
and
cross
national
blockchains.
B
A
That
that
the
international
blockchain
platform
in
spain
and
portugal,
it
was
built
by
by
a
hyper
sorry
by
an
italian
fork.
It
was,
I
think
it
was
a
quorum
form.
So
forum
was
a
high
pleasure
for
and
then
alaska
for
the
game
room.
So
this
is
more
or
less
based
on
on
a
the
consortium
network
and,
as
far
as
I
know,
the
second
such
a
direction,
which
is
not
even
national,
but
you
know
I
mean
e-wide
blockchain
network-
is
basically
the
the
fc,
the
european
blockchain
service
infrastructure.
A
So
if
we
talk
about
like
type
of
blockchains,
this
should
basically
distinguish
two
kinds
of
things
I
mean
in
terms
of
publicly
are
privately
available
and
I
would
distinguish
basically
the
infrastructure
layer.
So
this
is
like
the
infrastructure
and
I
will
distinguish
the
infrastructure
layer
from
the
from
the
application
one.
So
these
are
the
these
are
the
these
are
the
servers
that
we
put
in
that
way,
and
these
are
the
users
basically.
A
A
A
Deeply
publicly
and
and
permissioned
permissionless
we
got
the
classical
translation
direction.
The
classical
conservation
direction
is
looks
that
way
that
we
have
the
infrastructure
layer
as
a
conservation
one.
So
basically
only
companies
in
the
consortium
can
can
run
this
service
and
we
got
something
as
an
application,
as
a
user
side
and
basically
usually
user
side
is,
is
assumed
one
as
well.
So
it's
a
permission.
A
It
was
basically
an
e-wide
collaboration
attempt
to
to
increase
blockchain
adaptation
and
basically
the
blockchain
technology
acceptance
and
use
cases
and
ideas
within
the
eu
eu
member
states
and,
as
far
as
I
know,
it
started
in
2017,
if
I'm,
if
I'm
not
mistaken,
and
it
has
actually
more
than
one
initiative.
So
they
do
a
lot
like
like
regulation
and
and
stuff
like
that.
A
But
one
of
the
of
the
real
technical
initiative
is
launching
the
european
blockchain
service
infrastructure,
which
is
basically
an
initiative
for
for
for
making
for
realizing
a
cross-border
public,
cross-border
blockchain
that
provides
services
for
for
public
institutions
and
with
the
help
of
public
institutions.
I
mean
like
government
government
institutions
with
the
help
of
these
institutions
to
to
eu
citizens
as
well.
A
So
this
is
the
idea
of
pepsi
and
this
is
the
direction
and
so,
as
I
mentioned,
basically,
the
notes
are
the
notes
and
the
services
as
well
that
distributed
between
the
eu
member
states.
So
if
I
just
go
back
to
this
direction,
this
smile-
I'm
not
actually
that's
the
current
state
or
the
most
out
to
the
state,
but
these
are
the
nodes
in
the
in
the
fc
network,
so
assume,
as
you
can
see,
there
are,
I
mean
most
eu
member
states
run
at
least
one
node.
A
There
are
some
exceptions
not
running
still
not
running
the
node,
and
there
are
some
member
states
running
actually
more
than
one
node,
and
basically
this
is
the.
This.
Is
the
fc
fc
network
from
the
from
the
infrastructure
side
from
the
from
the
north
sides
from
the
from
the
peer
to
peer
network
side,
so
this
was
actually
the
the
introduction
and
after
that
I
would
some
of
the
ideas
of
of
the
architecture
of
fc
and
then,
after
that,
some
of
the
let
me
put
it
that
way.
A
So
again,
this
is
not
a
sales
pitch,
I'm
I'm
gonna
be
conceptual,
but
but
on
a
I
mean
on
the
technical
level,
so
the
idea
of
of
fc
of
of
the
infrastructure
it's
to
is
to
build
up
so
so
the
idea
is
not
to
build
up
something
as
a
brand
new
platform,
a
brand
new
core
blockchain
technology.
It's
like
not
you
know,
I
mean
not
something
like
us
and
we
say
hey.
We
can
do
better,
better
etheru
more
or
we
can
do
better,
better
higher
fabric.
A
But
basically
the
idea
is
more
more
like
architectural,
having
something
as
layered
and
pluggable
architecture
that
can
integrate
already
existing
blockchain
platforms
as
well.
So
that's
that's
the
main
idea
and
it
looks
that
way
that
it
has
like
five
different
layers.
Basically,
four
of
them
exist
already.
A
So
that's
the
core
blockchain
technology.
Actually
there
are.
There
are
two
as
far
as
at
least
two
technologies
inside
one
is
basically
hyperledger
fabric
that
is
integrated
and
the
other
one
is
is
ethereum
consortium
and
there
might
be
actually
high
collagen
in
india
as
well,
but
I'm
not
quite
sure
about
that.
A
A
It
contains
this
chain
and
storage
layer
and
again
so
the
idea
is
here
that,
within
within
this
layer,
there
might
be
the
possibility
to
integrate
more
than
one
or
even
on
a
on
the
long
run
more
than
two
or
three
different
blockchain
existing
blockchain
platforms.
So
at
the
moment
there
are
two
blockchains
integrated
here.
This
chain
and
storage
layer,
one
is
hyperledger
fabric
and
the
second
one
is:
is
a
consortium
conversion?
Meteorium.
A
So
the
major
direction
is
building
a
consortium
network
that
you
can
build
up
actually
actually
etf
public
networks
as
well
as
as
far
as
I
know.
So
that's
like
the
chain
and
storage
layer
and
of
course
we
got
some
other
components
in
the
in
the
chain
and
storage
layer
like
you
can
write
smart
contracts.
Of
course
you
can
write
smart
contracts
on
high
quality
fabric
or
on
ethereum,
so
the
two
programming
languages
is
one
is
one
is,
as
far
as
I
know.
Only
go
the
second
one
is
basically
it's.
A
It's
solidity
supported
us.
As
far
as
I
know,
we
got
something
as
as
blockchain
explorer
as
well
so
like
this
is
a
blockchain,
not
quite
sure
if
I
find
it,
but
yeah
like
this
is
the
this
is
one
of
the
actually.
There
are
two
explorers
because
of
the
two
technologies
so
like
this
is
an
interview
explorer
for
the
for
the
fc
network
for
the
ethereum
consortium
part
and
then
so.
This
is
basically
an
open
source
explorer,
nothing
special.
So
you
can
see
the
blocks.
A
A
Anyway,
so
this
is
like
a
classical
classical
ethereum
blockchain
explorer
nothing
special.
This
is
basically
a
an
open
source
project,
building
up
consortium,
ethereum
explorers
so
and
what
we
got
here
at
the
same
chain
and
storage
layer.
That's
another
part
which,
which
might
be
exciting,
which
is
which
is
an
office
off-chain
storage
service.
A
The
main
reason
is
for
that
is
that
the
most
most
much
almost
decentralized
ledger
application.
It's
not
built
up
solely
with
without
having
blockchain
I
mean,
especially
not
in
europe,
because
we
got
this
gdpr
regulation,
which
is
yeah
pretty
challenging
in
terms
of
blockchain,
and
so
basically,
if
you
want
to
start
it
on
the
blockchain
it
is,
it
is
challenging
at
all.
A
It
is
challenging
because
I
mean
blockchain
do
not
store
very
well
a
lot
of
data,
but
it
is
even
more
challenging
in
eu,
because
if
you
coincidentally
store
data
with
with
personal
information,
it's
not
something
that
can
be
deleted.
So
it's
not
gdpr,
compa,
compliant
and
you're.
Gonna
have
a
lot
of
problems
with
that.
So
basically,
most
of
the
hyperledger
or
or
or
ethereum
applications
running
in
a
consultation
setup
has
something
as
an
off-chain
component,
and
we
got
here
something
as
as
an
off-chain
service
for
this.
A
So
offset
of
change
service.
Looks
that
way.
We
can
store
something
as
files
actually
relational
database
tables,
something
as
key
values,
basically
and
even
some
big
data,
and
we
can
just
combine
this
data
with
the
blockchain
like,
like
hashing
hashing,
the
data
and
writing
into
the
chain,
and
there
are
three
different
kind
of
options
for
each
one
is
distributed.
Storage
distributed
storage
looks
that
way
that
we
got
basically
the
nodes.
A
So
if
I
put
a
piece
of
information
here,
that's
gonna
be
replicated
actually
at
each
at
each
and
every
node
on
the
blockchain
network.
It
is
certainly
not
necessarily
the
best
idea
for
almost
for
for
some
of
the
use
cases.
So
for
this
reason
we
got
something
as
a
private
storage
as
well.
Private
storage
is
just
a
private
storage
for
one
one
specific
node,
where
you
can
store
some
data
and
it
is
not
replicated
throughout
the
network
or
usually
actually
the
the.
A
The
idea
is
that
every
node
can
store
something
in
the
private
storage
and
there
might
be
some
custom,
custom,
application
or
custom
implemented
application
as
well
that,
in
certain
use
cases
migrate.
One
of
the
data
from
from
private
store
of
chain
store
to
another
one,
there's
a
possibility
as
well
to
to
integrate
external
storage
providers
as
well.
It's
like
aws,
storage
or
or
or
even
dropbox,
perhaps
perhaps
possible.
A
A
So,
in
this
sense,
core
services,
abstract,
availability,
functionality
of
the
of
the
underlying
infrastructure.
So
in
this
sense,
if
there's
gonna
be
something
as
yeah
I
mean
I
mean
I
mean
getting
a
new
blockchain
platform
in
the
chain
and
storage
layer
or
upgrading
something
in
the
chain
and
storage
layer.
Then
it
might
not
affect
very
much
the
business
applications
or
the
use
cases.
A
A
A
I
mean
very
simply
put
I
mean
the
use.
Cases
are
more
more
complicated,
but
but
you
know
in
a
simple
sense.
This
looks
that
way.
We
got
to
the
blockchain
and
let
me
say
we
we
have
here
something
as
a
document,
so
what
this?
What
we
do
basically,
is
that
we
extend
this
document
with
some
some
metadata.
A
A
A
One
is
the
notarization
service,
it's
like
to
trust,
not
notarize
documents
check.
If
the
if
documents
are
valid,
if
they
weren't
tempered,
if
the
time
stamp
wasn't
it
wasn't
tempered,
somehow
it
wasn't
fake
or
modified
and
so
on.
So
basically,
this
is
something
which
is
the
which
is
the
same
idea
for
for
documents
or
for
legal
documents
and
there's
something
which
is
trusted.
A
A
So
we
get
not
documents
but
kind
of
a
data
that
is
basically
hashed
written
into
the
blockchain
sent
to
another
party
and
basically
yeah,
but
you
can
check
that
if
the
information
is
still
valid
and
we
got
two
other
kind
of
applications
use
cases
which
are
which
are
more
more
technical,
a
little
bit
in
details.
So
I'm
gonna
talk
about
a
little
bit
more
this.
This
is
the
diploma
service,
it's
a
diplomatic
showing
service
and
we
got
something
as
an
initiative
for
a
european
sales
organizer
identity
service.
A
A
What's
behind
these
two
services
from
a
conceptual
point
of
view,
okay,
and
basically
let
me
just
start
so
what
we're
gonna
talk
about
in
the
next
like
couple
of
slides,
it's
five
slides.
I
guess
this
is
the
blockchain
and
identity
stack,
and
so
speaking
on
the
blockchain
and
identity
stack.
Let
me
just
take
a
look
on
the
example
of
issuing
a
diploma.
It's
a
degree,
but
I'm
not
quite
sure
everyone
wouldn't
say
I
think
diploma
diplomas
is
english
as
well.
Sometimes
I'm
not
quite
sure
it's
like
you
know.
A
A
So
in
this
model
for
the
first
round,
we
have
something
as
two
rollers
two
major
ones
we
got.
We
got
something
as
an
issue
where
the
issuer
is
basically
the
university
giving
formula
diplom
and
I'm
the
holder
of
the
diplom.
So
as
as
soon
as
I
got
this
diploma,
I
I'm
holding
this
diploma
basically
and
there's
a
third
party
as
well.
That's
the
verifier.
A
A
A
That's
barely
here,
but
they
just
imagine
that's
a
problem,
I'm
the
writing
or
or
anybody
can
ride
this
diploma,
and
basically
this
deep
long
can
be
can
be
presented
to
a
verifier
that
can
be
an
employer,
for
instance,
or
a
future
employer
so
giving
a
little
bit
more
in
this.
In
this
model
we
get
something
as
a
verifiable
data
registry.
A
So
the
point
is
basically
that
you
know
I
mean
so
let
me
just
imagine
I
got
there's
an
issuer
issuing
the
diplom,
I'm
holding
the
diplom,
and
so
the
question
is
what
prevents
me
to
to
to
forge
this
diploma
or
to
fake
this
diplom,
or
just
to
rewrite
this
d
prompt.
Somehow.
The
point
is
that
I
mean
this
diploma.
Issuing
use
case
works
pretty
well.
A
If
we
have
something
as
a
paper,
it
has
been
working
like
for
200
years,
but
it's
getting
fully
digital,
so
the
same
idea
is
is
not
necessarily
the
best
idea,
so
just
going
a
little
bit
further
with
this
model,
let
me
imagine
that
I
get
a
diploma.
Sorry
I
got
to
I
got.
I
got
the
university
issuing
the
diploma
for
me,
but
with
issuing
this
diploma,
this
deep
frame
is
somehow
registered
into
a
public
verbally
verifiable
data
registry.
A
A
A
It
was
taking
three
years.
I
got
an
excellent
grade
at
the
end,
but
it's
like
in
accounting.
I
wasn't
so
good
in
international
business.
I
was
good
in
marketing.
I
was
excellent
and
so
on
and
so
on.
So
this
is
basically
the
piece
of
paper.
It's
called
the
credential
that
we
want
to
put
actually
on
the
top
of
a
blockchain
in
a
fully
digitized
form.
A
So
how
do
we
do
it?
So
the
first
idea
is
is
intuitive.
We
say
that
the
verifiable
data
registry
is
the
blockchain,
so
we
got
this
diploma.
We
don't
write
the
diploma
into
the
blockchain
itself,
it's
because
of
gdpr.
You
can
do
it,
but
I
mean
having
the
previous
example.
What
we
can
do
we
can
hash
this.
A
A
The
second
idea
is
that
we
shouldn't
we
shouldn't
write
something
something
like
like
the
issuer,
identity
or
the
or
the
holder
identity
into
the
blockchain,
and
to
understand
this,
let
me
just
take
a
look
in
the
in
a
classical
blockchain
example.
So,
if,
if
he
has
somewhere
like
a
bitcoin
or
an
et
room
address,
you
know
I
mean
in
in
bitcoin
or
in
ethereum
your
your
public
key
is
practically
your
identity.
A
So
if
you
have
a
key,
then
we
can
regard
like
like
blockchain
like
it
in
a
bitcoin,
in
a
direction
that
your
public
public
address
holds
basically
the
crypto
coins.
So
basically,
your
public
address
is
basically
your
identity,
and
what
you
can
do
is
that
you
can
spend
your
money
and
if
you
spend
your
money,
you
can
do
it
in
a
way
that
you
sign
with
your
private
key
and
basically,
if
you
sign
your
private
key
you
you
say
that
hey.
This
is
me.
A
So
what
I
basically
do,
I
get
an
issuer.
That's
a
university
and
the
university
doesn't
write
the
university
or
not
necessarily
by
the
university
into
the
diploma,
but
what
they
do
is
that
they
get
practically
a
public
and
private
key
and
then
the
public
key
in
this
sense
is
the
identity
of
the
issuer.
So
what
the
issuer
says
it
writes.
A
A
So
what
I
can
do
I
can
perhaps
my
name
is
not
written
at
all
in
my
diplom,
but
basically
what
I
can
do
is
that
I
generate
a
pair
of
keys,
a
public
key
and
a
private
key,
and
I
say
issue
my
diploma
to
this
public
key
okay.
So,
basically,
instead
of
instead
of
the
name
instead
of
charts,
my
public
key
is
written
into
the
diplom,
and
I
can
prove
that
this
diplom
is
related
to
me.
A
So
again,
three
three
ideas:
putting
everything
to
the
blockchain
first
hashing,
the
diplom
together
and
then
writing
it
writing
to
the
blockchain.
The
second
one
is,
instead
of
identities
using
like
public
private
key
pairs,
that's
the
main
main
idea
for
for
the
verifiable
financial
model
and
that's
the
main
idea
for
for
the
blockchain
and
identity
stack.
A
Things
are
getting
a
little
bit
more
complicated
because
we
don't
say,
like
public
environment
usually
say,
say
decentralized
identifier.
This
is
usually
the
public
key
that
I
was
that
I
was
referring
previously,
but
it
looks
that
way
that
this
private
key
has
has
a
lot
of
like
meta
information.
So
you
get
some
like
more
information
on
with
which
cryptographically
tool
did
we
did
we
created
this?
A
How
we
can
sign
and
and
stuff
like
that,
but
we
can
imagine
that
this
is
our
like
extended
public
key,
which
is
kind
of
kind
of
a
kind
of
an
identifier
kind
of
cryptographically
identifier
and
the
idea
behind
blockchain
aligned
at
this.
Is
this
stack
that
there's
an
end
user?
This
is
the
end
user
and
basically
the
end
user
got
the
wallet
and
the
wallet
doesn't
store.
I
mean
well,
it
won't
store,
actually
coins,
not
in
nothing,
nothing,
nothing,
bitcoin
or
in
it
or
with
ethereum,
but
the
block.
A
A
So
this
is
how
the
id
look
like
we
get
some
scheme,
we
get
some
method,
and
basically
it's
it's
it's
an
identifier.
It's
like
you
know.
I
mean
like
like
an
address
or
a
republic
with
bitcoin
or
vtu,
and
we
get
the
div
document
as
well.
The
id
document
describes
stuffs
like
with
which
cryptographic
should
I
should
I
somehow
sign
this
or
use
this
some
some
some
meta
information
and
then
stuffs
like
that.
A
So
with
this
set,
this
is
the
so-called
I
mean
the
covered,
basically,
the
deep
law,
but
the
european
central
identity
system
goes
goes
beyond
with
one
step
of
the
diploma
use
case,
and
this
is
the
general
architecture
like
like
issuing
such
verifiable
credentials.
So
basically
we
got
the
same
elements
we
get
like
issuer
issue.
I
can
issue
like
these
verifiable
credentials.
It
can
be
like
postal
address,
it
can
be
diplom,
it
can
be
a
national
id
as
well.
A
A
A
What,
lastly,
I
would
just
literally
highlight
is
basically
the
the
fc
roadmap
roadmap-
it's
a
little
bit
old,
but
it
looks
that
way
that
it
started
in
2019.
These
are
the
four
use
cases
that
are
implemented
in
2020.
There
are
like
three
more
use
cases
and
basically,
every
year,
there's
something
as
an
initiative
for
new
use
cases
so
like
I
will
show
some
of
the
links
perhaps,
but
even
at
the
moment
I
think
there's
like
an
active
face
for
for
forgetting
new
use
cases
and
new
applications
on
the
fc
network.
A
A
A
A
The
fc
wallet
stores
your
the
ids,
and
we
have
the
ids
you
can
you
can
get
practically
I
mean
you:
can
you
can
have
access
for
the
rest
of
the
services?
So
if
you
have
your
the
ids,
you
can
get
get
your
eid.
That's
that's
a
that's!
A
demonstration
of
of
digital
digital
id
identification
card
as
a
verifiable
financial.
If
you
have
your
official
eid,
then
you
can
get
your
bachelor
of
deployment
for
that.
You
can
get
your
master
diplom
and
even
you
can
you
can
authorize
documents
as
well.
A
A
And
again
your
wallet
stores,
basically
your
the
ids,
so
it's
keys,
but
it's
not
a
crypto
wallet,
it's
an
identity
wallet.
So
this
is
my
wallet
and
then
it
doesn't
work.
There's
there's
some
error
in
there,
but
supposing
that
it
works,
you
can
check
these
use
cases.
Let
me
just
check
one
more
so
like
getting
your
eid,
I
think
it
somehow.
My
wallet
wasn't
generated
very
well,
so
I
will
still
get
an
error
here.
A
So
I
should
just
log
in
yes,
so
there's
some
some
error
with
my
with
my
with
my
did
wallet,
I
don't
know
exactly,
but
anyway,
you
can
find
the
links
here.
You
can
find
the
demo
for,
for
all
of
the
use
cases
just
general
for
the
wallet
for
european
search
survival
identity.
It's
like
issuing
a
id
card
that
was
demonstrated
by
the
by
the
belgian
government.
It's
like
issuing
diploma
having
denuclearization
and
trusted
data
sharing
use
case
as
well.
A
A
A
A
Just
taking
a
while,
because
my
network
is
not
so
strong,
so
it's
like
streaming
streaming
and
and
checking
the
slides
is
not
something
which
goes
very
well
but
anyway.
So
this
is
the
major
slide
or
major
major
site
for
fc.
So
if
you
just
say
get
started
with
epc,
you
have
something
as
a
learning
package
as
well,
and
if
you
go
to
the
burn
learning
package,
you
find
some
contacts
as
well.
A
If
you
like
want
to
do
want
to
do,
pilots,
a
pilot
application,
basically
again
it's
for
for
for
public
institutes
for
the
first
run,
and
it's
still
loading
that
personal
link.
You
find
representatives
for
each
country
in
eu.
So
if
you're
somehow
related
in
one
country
in
the
eu,
then
then
you
can.
You
can
find
the
official
representative
and
then
you
can
get
more
information
from
from
there
as
well.
So
you
have
here
some
something.
B
A
A
A
So
what
you
can
do,
if
you
like,
want
to
hosting
stuffs
in
in
in
multi,
multi-host,
multi-cloud,
multi
multi
technology
I
mean
one
way-
is-
is
getting
to
the
virtual
machine
side
and
saying
hey.
I
got
several
nodes.
I
got
my
virtual
machines
that
are
fixed,
so
I
I
say
which
is
the
virtual
machine
I
want
to
use,
and
then
I
can.
I
can
run
one
virtual
machine
in,
like
I
don't
know
like
on-premise,
the
other
one.
A
Basically,
it's
like
the
amazon
cloud,
the
third
one
in
the
google
cloud
and
so
on,
and
then
that
means
that
you
separated
your
blockchain
level
on
a
virtual
blockchain
network
on
a
virtual
machine
machine
level.
Each
I
mean
the
virtual
machine
type
is
the
same,
but
each
virtual
machine
running
on
a
totally
different
host,
even
in
a
totally
different
cloud,
even
with
totally
different
hosting
technologies.
A
And
despite,
if
everything
goes
well,
then
these
virtual
machines
can
communicate
with
each
other.
And
then
you
got
your.
You
got
your
blockchain
network
up
and
running.
That's
one
way
you
can
say
you
can
move
one
level
higher
and
you
say
that
you
have
something
as
a
container,
so
you
get
something
as
a
containers
infrastructure.
A
So
you
don't
care
how
the
virtual
machines
are
are
actually
implemented,
but
you
say:
hey.
I
want
to
run
every
single
docker
components
so
like
provide
me
something
that
can
run
my
docker
components
and
I
don't
care
which
is
the
which
is
the
virtualization
technique
you
use.
I
don't
really
care,
which
is
the
yeah.
A
Physical
operation
system,
or
or
which
is
the
any
kind
of
other
technology,
I
just
need
some
some
container
orchestration,
some
some
infrastructure
that
runs
my
docker
containers
and
if
that
works
I
mean
there's
like
networks
and
stuff
like
that.
Then
then
you
deploy
your
your
blockchain
network
on
on
on
a
multi-cloud
multi-host,
even
mixed
on-premise
cloud
and
multi-technology
environment.
A
B
A
Sure,
based
on
the
documentation,
there's
there's
virtual
machine
and
and
docker
layer
as
well
in
the
in
the
fc
infrastructure.
I
I
can't
say
stuff
like
that.
You
absolutely
need
the
virtual
machine
or
or
it's
enough,
if
you
have
your
docker
components,
I'm
not
quite
sure
about
that.
But
these
are
the
two
fundamental
fundamental
levels
as
running
your
network
as
multi-host
even
multi-cloud,
even
even
hybrid
on-prem,
multi-cloud,
environment.
B
Okay,
thanks
for
your
information,
I
got
it,
but
the
question
arise
from
some
developers,
some
developers
and
the
internet.
There
claimed
that
hyperledger
fabrics
by
default,
don't
provide
decentralized,
desktop
and
that's
why
they
claim
that
we
need
multi-host
deployment.
I
mean
issuer
verifier
or
or
holder.
They
maybe
order
a
note,
and
maybe
there
are
another
note,
see
a
note
certificate
of
30
note
and
other
other
pr
node.
B
They
distributed
the
they
distributed
them
in
different
vm
right
and
they
try
to
try
to
prove
that
every
every
vm
are
distributed
and
they
can
hold
same
hyperledger
project.
In
that
way
they
try
to
prove.
We
are
getting
decentralized
capability
from
hyperledger,
but
the
documentation
from
hyperledger
fabrics
there
is.
There
is
actually
no
good
way
or
go
or
no
good
discussion
about
that,
but
some
of
the
developers
are
claimed
that.
So
that's
why?
B
Maybe
I
and
many
developers
who
are
trying
to
learn
for
production.
They
are
confused
about
that.
What
actually
your
opinion
based
on
your
experience?
Is
it?
Is
it
actually,
we
need
multi-host
to
get
the
power
of
decentralized
from
hyperlaser
fabrics.
I
already
know
about
that.
Hyperledger
fabrics,
one
chain:
you
know
one
chain
how
much
appears
are
available,
they
hold
chain
code
and
also
every
chain
code
means
some
smart
contract,
which
is
smart.
B
A
So
I
mean
regarding
fc
this:
this
information
is,
is
not
available,
so
regarding
app
seeders,
there's,
no
information,
how
hyper
ledger
fabric
are
built
in
the
system
or
or
any
specific
such
information.
So
I
I
can't
say
more:
you
can
take
a
look
actually
on
the
on
the
technical
documentation,
but
basically
even
technical
documentation
says.
I
think
that
you
get
like
two
blocks.
A
Are
implemented
with
the
help
of
of
of
hyperledger
fabric
and
consortium
ethereum
with
with
hyperledger
bezel,
and
there
might
be
some
further
protocols
in
consideration
as
well
how
it
is
exactly
implemented.
There's
no
publicly
available
information
on
that,
but
you
can
take
a
look
on
the
documentation
as
well.
So
regarding
fc,
I
can't
say
anything
if
we
just
change
it
with
focus
and
then
we
say
like:
let's
have
something
as
hyper
agile
fabric
without
fc.
A
A
Usually
you
get
one
company
with
one
infrastructure,
another
company
with
other
infrastructure,
the
third
one
with
the
third
infrastructure,
and
then
these
might
be
vms
and
like
some
like,
I
don't
know,
you
need
something
as
a
docker
swarm
on
that
and
then
it's
the
question
if
you
have
like
one
docker
swarm
or
several
docker
swarm,
and
then
after
that,
there's
one
more
layer
as
well,
where
you
distribute
your
fabric
components
as
well.
So
like
you,
can
have
something
as
an
ordering
service,
and
you
can
have
like
this.
A
A
So
basically
it's
it's.
A
pretty
complicated
design
challenge
challenge.
Designing
your
hyperledger
fabric
network
first
question
is
usually
how
your
fabric
infrastructure
look
like
how
it
is.
It
is
distributed
among
the
among
the
different
different
participants,
different
organizations.
Then
you
can
go
one
level
deeper
and
then
you
can.
A
You
can
make
some
some
considerations
as
well
how
your
your
core
infrastructure
look
like
if
it's
like
docker
swarm
or
if
it's
like
kubernetes,
do
you
want
to
use
one
kubernetes
cluster
or
perhaps
perhaps
more
than
one
and
then
how
the
staffs
is
implemented
on
a
virtual
machine
machine
layer.
So
these
are
like
at
least
three
big
areas
where
you
can
consider
two
and
three
where
you
can
consider
something
as
as
centralization
or
decentralization.
A
B
A
It's
it's
like
again
is
it?
Is
it?
Is
it
a
high
pleasure
fabric
network,
so
are
we
at
the
at
the
level
of
you,
know,
pierce
and
ordering
service
and
certificate
authorities?
Is
it
like
on
an
infrastructure
layer,
so
I
will
speak
about
like
docker
spawn
or
are
you
speaking
about
like
like
kubernetes?
A
B
A
So
what
you
basically
need?
You
need
this
layer
and
this
layer,
as
far
as
I
know,
can
be
like
docker,
swarm
or
kubernetes.
It
can
be
actually
any
kind
of
orchestration
theoretically,
but
you
find
the
most
information
in
most
most
examples
from
hyperledger
fabric
infrastructure,
actually
on
docker.
So
so
you
can
see
docker,
swarm
and
and
the
second
one
is
kubernetes.
A
A
First,
basically,
for
the
fabric
network,
it
doesn't
matter,
I
mean
for
the
fabric
network,
you
need
something
which
is
which
is
running
the
the
images
practically.
So
it's
almost
separated
from
the
virtual
machines
and
then
you
can
go
down
and
then
take
a
look
at
how
how
practically
like,
like
dockers,
form,
need
to
be
implemented
with
the
help
of
virtual
machines.
And
then
you
need
basically
virtual
machines
for
your
for
your
dockers.
For.
A
Implementation,
so
again
you
you,
don't
you
don't
consider
directly
hyperledger
fabric
and
then
virtual
machines.
You
consider
high
pillager
fabric
with
the
help
of
an
orchestration
tool,
and
this
orchestration
tool
is
like
docker,
spawn
or
kubernetes,
and
you
consider
virtual
machines
for
your
orchestration
for
your
dockerized,
dockerized,
environment
or
container.
A
A
So
there's
there's
one
more
question:
if
we
can,
if
you
can
connect
hive
election
with
embedded
systems,
so
yeah
good,
good
question.
As
far
as
I
know
there,
there
are
initiatives
of
integrating
integrating
directly
hardware
devices
with
hyperledger
fabric,
but
I'm
not
quite
sure
about
the
details,
so
you
can
take
a
look.
Actually,
there
are
some
research
papers
as
far
as
I
know
they
investigated
the
area
in
the
direction.