►
Description
Nikolai Iushkevich, Soramitsu Co., Ltd.
Ethereum is one of biggest networks available for deployment of decentralized applications, and enterprise-grade applications start to depend heavily on it. For Hyperledger community it is important to understand what is the way their existing HL infrastructure can nicely fit dApps deployed on Ethereum network. During this demo and presentation, we might explore the possibility of interoperation between Hyperleder platforms and Ethereum, in particular, Iroha. In the best scenario, I would show a demo app that shows how funds are transferred between Ethereum and Iroha.
----
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
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Events: https://www.hyperledger.org/events
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Learn about Hyperledger Membership: https://www.hyperledger.org/about/join
#Hyperledger #HyperledgerGlobalForum2018 #Blockchain
A
Well,
frameworks
in
hyper
ledger
can
actually
interoperate
with
the
etherium,
like
I
will
give
you
a
practical
demo,
as
one
of
our
partners
implemented
their
solution
on
top
of
yoga
and
I'm
gonna.
Give
you
a
general
idea
on
that,
and
the
audience
here
shouldn't
be
very
technical,
but
you
should
understand
at
least
what
is
well
a
smart
contract,
and
how
do
we
use
api
of
a
theorem?
A
This
demo
is
mainly
about
how
to
exchange
assets,
but
assets
can
be
anything
it
can
be
just
information
between
any
kind
of
framework
and
the
theory
of
network
in
general
I'll
tell
you
about
yoga
a
bit
like
what
is
it
and
about
the
service
that
built
their
solution
of
safekeeping
of
digital
assets
for
institutional
crypt
investors
in
a
very
decentralized
way.
So
why
do
you
want
to
have
this
interoperability
in
first
place?
A
You
want
to
build
decentralized
exchange
or
a
crypto
payment
system,
or
you
want
to
notarize
any
kind
of
information
that
is
on
etherium
or
you
want
to
just
get
the
digital
assets,
tokenize
them
in
hyper,
ledger
and
use
it
wherever
you
want
in
any
way
you
want,
and
the
answer
is
to
wait
back
I'm,
not
the
guy
who
invented
this
notion.
We
actually
have
paper
from
Eris
k,
company
and
I
think
this
is
very
old
term,
but
it
means
that
you
have
to
get
an
adapter
between
two
and
that's
it.
A
It's
just
an
intermediary
between
two
frameworks
and
it
should
work
essentially
just
work
just
as
the
voting
system
just
a
little
bit
of
a
background.
Smart
contact
is
immutable,
runnable
application
that
runs
on
top
of
blockchain
that
is
stored
there.
It's
at
some
point
as
it
is
a
pure
function.
It
accepts
an
address,
input
and
modifies
the
old
state.
So
the
new
one
and
hyper
ledger
framework
which
interoperates
with
aetherium,
should
you
know
somehow
interoperate
with
the
API
smart
contracts,
mainly
because
you
see
twenties
other
types
of
smart
contracts.
A
Well,
they
are
owned
in
theorem
and
you
have
to
adapt
to
their
API
and
the
adapter
would
be
this
two-way
pack,
which
has
several
responsibilities.
You
have
to
convert
transaction
from
any
hyper
ledger
framework
to
a
smart
contract
input
or
you
have
to
convert
the
output
of
smart
contact
into
hypo
ledger
transaction.
A
If
you'd
like
to
interoperate
with
the
theorem,
you
should
also
invoke
smart
contract
and
do
some
actions
that
you
want
in
your
logic
or
you
should
observe
chain
events,
and
of
course
you
want
to
do
this
because
well,
if
something
happens
in
the
theorem,
you
want
it
to
be
registered
in
hyper
ledger
framework,
and
you
should
also
take
into
consideration
that
their
network
is
not
doesn't
have
a
finished
consensus
or
deterministic
one.
So
you
need
to
calculate
the
probability
of
this
transaction.
Is
it?
A
Is
it
going
to
be
written
on
a
block
or
not,
and
we'll
focus
on
this
part
will
focus
on
two-way
pacts.
They
can
be
designed
in
this
in
in
a
variety
of
ways:
I'll
focus
on
top
three
I
guess
so
the
the
bottom
two
are
just
variations
and
will
not
cover
them.
I
put
the
reference
in
the
bottom
of
the
slide.
If
you'll
go
to
sketch
shed
comm,
you
can
find
my
session
and
download
the
slides.
So
here's
how
you
can
design
your
two
way
back.
A
You
can
design
it
as
a
single
custodian
and
we
know
the
example
of
it.
If
you
ever
heard
of
inter
ledger,
that's
just
a
single
well
component,
that
is
in
charge
of
this.
It's
not
decentralized,
it's
very
easy
to
hack
if
it's
not
protected.
It's
essentially
second
self
consensus.
So,
as
I
told
you
before
any
two
way,
pack
is
just
the
voting
system,
and
this
one
is
just
self
consensus
voting.
If
you
trust
it
use
it.
A
We
have
quilt
for
fabrics,
so
you
can
interoperate
with
ripple
I,
guess
or
that's
just
an
example
of
the
way
back.
We
can
do
the
same
for
aetherium
multi,
stick
Federation!
That's
where
it
get
gets
more
interesting.
We
need
to
spread
out
the
responsibilities
of
voting
between
participants
and
we
want
them
to
be
very
trusted,
so
we
give
give
out
to
them
keys
and
we
want
to
use
some
multi
signature
transactions
or
whatever,
and
it's
and
those
participants
are
called
notaries.
A
They
have
to
own
keys
in
hyper
ledger
framework
of
your
choice
and
this
idiom
into
in
the
robbery
consensus
is
achieved
through
some
endorsement
policy.
Usually
it's
non
non
non
weighted.
Everyone
has
equal
voting
rights,
it's
very
easy
to
customize
because
you
can
attach
any
side
chain.
I
mean
side
effects,
any
kind
of
external
data
for
your
decentralized
apps
side
chains
is
a
thing,
oh
well,
where
you
put
your
logic
of
voting
more
into
the
peer
itself.
A
If
you
heard
of
this
project
started
by
gaming,
would
they
are
building
this
so
essentially,
polka
dot
is
just
a
huge
chain
of
all
very
heterogeneous
chains,
and
there
is
a
link
to
that.
So
as
a
conclusion
to
way
back
for
hot
relative
framework
is
most
likely
a
multi
sic
Federation
of
notaries
and
implemented
whether
it
is
north
chain
application
or
on
chain.
You
have
to
do
voting
somehow,
and
here
we've
got
five
hydrologic
frameworks.
We
can
do
this
also
within
Z
or
so
to
store,
borrow
and
use
their
API.
A
A
Usually
you
can
code
your
logic
as
an
off
chain
application
and
just
reuse,
the
API
API,
but
in
case
of
burrow
or
fabric,
you
can
use
lightweight
smart
contracts
where
you
just
do
voting,
but
the
decision
is
done
with
some
site
services
that
monitor
events
on
this
idiom
and
trigger
some
events
in
the
wrong.
How
we
do
it
of
chain
with
multi-sig
transaction
processor
and
we
observe
events.
So
what
is
hydrology
raha?
A
It's
a
SQL
power
DLT.
We
have
multi
seeker,
we
have
native
tokenization
and
our
API
is
very
simple,
so
you
just
create
new
assets
and
transfer
them.
Well,
it's
it's
like
create,
transfer,
transfer,
it's
very
simple.
We
have
as
the
case
for
major
programming
languages
and
those
partners
from
DC
ledger.
They
called
their
logic
and
Kotlin,
and
we
have
linear
time
complexity
in
our
B
50
consensus,
which
means
we
have
to
send
less
messages
compared
so
well.
A
D3
ledger
is
actually
first
running
project
in
this
area
in
on
top
of
hydrology
Walker.
This
is
a
global
distributed
platforms
in
multiple
jurisdictions,
for
safekeeping
of
digital
assets,
of
your
choice.
It
works
now
with
the
theorem
and
Bitcoin.
We
provide
posting
infrastructure,
we
provide
cross
border
settlements
and
any
type
of
transfers
of
your
possible
equipped
assets.
It's
all
should
actually
open
source
project.
A
You
can
go
to
the
website
and
request
an
extensive
demonstration
of
that
on
the
website,
but
as
we're
limited
in
time,
I
think
I'll
I'll
just
show
you
how
the
transfer
of
aphelion
works,
or
maybe
deposit
withdrawal
takes
longer
period
of
time.
What
does
the
d3
note?
Well,
what
is
a
court
thing
in
this
solution?
We
actually
have
hyper
Leggero
appear.
We
have
a
theorem
peer
and
we
have
some
set
of
services
and,
of
course,
private
keys.
We
actually
had
well.
A
This
project
actually
had
very
first
pilot
deal
with
a
private
investor
who
deposited
I
guess
100
etherium
had
some
internal
operations
like
exchanges
of
tokens
inside
of
it
inside
of
the
system
and
was
done
it
back
safely
and
the
whole
service
focuses
on
private
investors
that
are
very
afraid
of
crypt
investments,
because
well
you
have
to
be
confident
about
the
source.
You
have
to
prove
that
you
made
some
actions
and
that's
what
the
service
provides.
A
I'm,
not
going
to
conclusion
right
now,
I
think
I
just
want
you
to
show
the
service
so
I'm
gonna
log
out
and
show
you
how
it
looks.
It
looks
like
just
a
centralized
service
where
you
would
just
like
my
ether
wallet.
Actually
it's
just
the
same.
It's
the
stateless
application
where
you
upload
your
private
key
in
order
to
login,
and
here
you
can
see
some
dashboard-
it's
not
that
interesting.
We
were
focusing
on
interoperability,
part.
A
So
for
each
user
in
d3
there
is
a
smart
contract
deployed
that
that
identifies
all
the
transfers
to
the
address
of
the
smart
contract
as
transfers
in
d3.
So
now,
I'm
going
to
use
this
address
in
my
other
wallet
to
send
some
tokens
and
show
you
that
our
that
they
were
tokenized
correctly
and
I
just
need
to
log
once
again,
so
my
other
wallet
show
everything
here
we
go.
A
A
A
A
Well,
you
said
either
other
scan
for
that
it
takes
some
times
we
are.
We
will
depend
on
external
networks
like
this
so
yeah
and
when
it
happens
actually,
when
the
transaction
is
going
to
be
finalized
notice.
Well,
the
application,
the
services
that
monitor
is
serum
events.
They
have
to
check
that
this.
This
transaction
was
written
in
the
block
and
a
certain
number
of
blocks
was
written
after
it
because
in
this
idiom
it's
not
deterministic
consensus.
A
You
have
to
wait
certain
number
of
blocks
and,
according
to
statistics,
I
think
six
or
eight
is
the
number
of
blocks.
After
the
probability
of
reversion
is
very
low.
You
can
actually
find
the
precise
number
on
either
scan.
They
have
a
specific
API
for
that
yeah.
It
was
confirmed
so
I
send
it
from
my
address
to
a
contract,
and
now
in
d3
I
should
be
able
to
see
this
transaction
yeah
I
got
something
here.
We
can
see
that
I
successfully
deposits
it
from
aetherium
some
other
and
if
I'll
withdraw
it,
it
will
take
more
time.
A
I
can
show
it
maybe
but
I'm
not
sure
if
I
have
enough
time
actually
I
have,
but
while
I'm
doing
this
I
want
to
draw
a
conclusion
and
maybe
give
some
time
for
the
questions
from
your
site.
If
you
have
something
so
let
me
just
briefly:
okay,
I'm,
not
I,
won't
be
able
to
see
this
on
my
list,
because
this
account
is
not
for
me,
but
aetherium
is
a
public
network
and
we'll
see
if
there
was
a
transfer
to
this.
A
A
All
right,
it's
not
the
transaction
I
need
to
go
to
other
scan
and
observe
some
internal
transactions.
Okay.
So
as
a
conclusion,
what
I'd
like
to
say
is
it's:
it
is
possible
for
hypo
ledger
frameworks
to
be
well
interconnected
with
public
aetherium
and
most
likely
this
would
be
multi-sig
Federation
of
notaries.
There
are
notable
projects
like
quilt,
polka
dot
and
some
other
companies
or
individuals
build
their
solutions.
We
actually
have
this
one
open
source.
So
if
you
go
to
the
d3
ledger,
you
can
download
the
code
and
play
with
it.
A
A
B
A
It's
ethion
public-address,
so
for
the
new
comer,
you
generate
the
new
account
with
their
let's
say:
it's
argot
addresses
in
this
idiom
and
this
address
is
actually
a
smart
contract
that
would
relay
all
the
tokens
to
shared
Multi
signature
wallet
of
all
the
notaries.
And
if
you
want
to
withdraw
money
from
the
system,
the
notaries
should
vote
on
your
withdrawal,
and
this
happens
with
the
services.
B
A
Laser
manages
like
everything,
it's
contracts
and
the
logic
of
the
transfers
the
etherium
are
deployed
in
this
idiom
and
hyper
ledger.
Aurora
is
used
as
notarization
part
for
everything
for
your
request
on
with
global.
It's,
it's
your
like
it's
your
source
of
truth
for
your
let's
say:
balance
or
history
of
transactions
on
your
intent
to
withdraw
on
your
deposits,
so
yeah.
C
A
Solidity
contracts
are
open
sourced
and
actually,
if
you
heard
of
leaky,
this
is
equipped
to
exchange
that
worked
as
a
guarantee
or
warrant
or
for
the
first
pilot
view,
so
they
reviewed
our
contracts
and
well
at
some
point.
This
is
degree
of
trust
or
something.
So
if
you're
curious,
you
can
go
to
d3
ledger
slash
node
tree
in
eth
folder.
There
will
be
a
list
of
contracts
right.