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From YouTube: Hyperledger Sydney Meetup - March 20, 2020
Description
A virtual meetup run by Hyperledger Sydney on March 20, 2020 that was focused on digital identity. Chi Zhang, Digital Assets Technology Lead from FinFabrik, introduced Hyperledger Indy and shared their practical experience with building decentralised identity.
More details about the event are at:
https://www.meetup.com/Hyperledger-Sydney/events/269364623/
----
Hyperledger – Open Source Blockchain Technologies
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B
B
B
We
have
too
many
login
identities
to
remember
and
banish
the,
and
it
is
fragmented
and
duplicated.
Also
is
not
portable
and
easy
to
to
access
the
identity,
vulnerable
to
being
stolen,
faked
lost,
oh
yeah,
and
also
sometimes
we
will
reveal
too
much
information
too
much
privacy
necessary
needed
and
also
the
identity
are
not
interoperable.
B
B
Institutions,
for
example,
they
have
to
repeatedly
and
manually
to
the
user
and
it
any
type
text,
for
example,
for
opening
a
bank
account
or
register
use
of
compound
assistance,
and
usually
the
institutions
are
victim
of
a
beautiful
and
fishy
and
also
they
will
spend
a
lot
of
money.
Some
sort
of
I
am
system,
gentlemen
and
tennis
also
spend
money
cost
of
a
the
user
world
past
the
use
of
password
security
protection,
and
also
they
have
the
the
record
of
the
regulatory
compliance
to
to
abide
by.
B
You
know
for
energy,
taking
especially
for
the
for
for
some
adult
contained,
or
you
know
like
setting
or
something
like
that.
So
those
are
the
problems
for
individuals
and
institutions
and
if
you
look
at
the
the
hallmark
assess
this,
those
are
the
beta
in
2016.
No,
we
have
a
smartphone
users
globally,
one
being
and
asked
me
to
know.
In
this
year
we
have
two
point:
seven
billion
mobile
users,
and
then
you
know
the
global
PSA
is
funding
in
2016
five
hundred
million
and
sixty.
B
B
C
C
B
And
then
come
up
another
another
one
is
the
other
guys
have
tempers?
So
death
is
an
expert
in
the
in
the
digital
digital
finance,
so
he
he
wrote
a
blog
meant
putting
identity
on
the
on
the
blockchain,
so
he
kind
of
had
this
consumption
over.
There
were
free
domain
identity.
Now
for
for
no
more
user,
you
have
your
identity.
B
C
B
B
B
So
then
you
know
this
quick
intro
about
the
issues
problem
with
identity
and
how
people
come
up
with
solutions
to
have
proper
self
control,
decentralized
identity.
Now
we
come
up
for
the
next
topic.
The
Fabri
lighter
unity,
so
indy
is
one
of
the
projects
under
the
brighter
capillary
foundation,
and
so
it's
a
it's
a
solution
based
on
the
blockchain.
So
it
provides
the
tools,
libraries
and
the
useful
components
for
people
to
implement
the
identity,
application
or
energy
solutions
based
on
the
based
on
the
blockchain.
B
So
the
currently
you
can,
you
can
do
to
the
serving
serving
to
all
category
use
faces
to
view
all
the
current
user
cases.
I
picked
two
of
them
the
first
one,
the
verifiable
organization's
Network
villain.
He
is
an
open
source
collaboration
issued
by
the
governments
of
British,
Columbia,
Ontario
and
Canada,
and
to
put
on
to
put
the
the
company
registrations
from
needs
and
licenses
on
the
envelope
chain.
So
there's
the
best
solution
for
that,
and
then
the
other
user
case
see
you
later
the
ladies
constructively
as
unions.
B
B
B
There
are
three
main
main
roles
of
main
players,
so
the
Essure
holder
and
then
the
very
fair
and
so
the
issues,
the
son,
the
credential
and
the
issue,
the
credentials
which
is
the
server
knowledge
creation
to
the
holder,
so
that
when
the
holder
understand
the
credit
or
unsafe,
the
credential
issue,
bad
issues
in
their
identity,
wallet
and
and
then
one
the
credential
needed
or
required.
A
very
fair
and
the
holder
presented
the
credential,
which
is
zero
knowledge
proof
to
the
affair.
And
then
the
verifier
verify
the
authorities
of
signatures
of
those
credentials.
B
B
Very
they
all
have
their
own,
the
IDS
and
then
the
D
IDs
and
all
the
necessary
kind
of
theta
around
the
credential
are
saved
on
the
pull-up
chain.
The
public
launch
and
Oh
a
consultant
or
private
in
a
decentralized
network
as
well.
So
that's
how
the
really
safe
fix
of
a
verifiable
credentials
and
then
there's
stuff
the
main
components
in
that
variable
credentials
or
in
the
laboratory
in
the
implementation.
So
from
the
left,
the
portal,
well,
the
decentralized
identifiers,
the
D
ID.
B
So
you
can
really
keep
the
description
of
that.
So
I
want
to
be
that
and
then
the
next
one
is
the
verifiable
credentials
is
the
same
as
like
a
piece
of
piece
of
data
which
you
can
you
can
save
anywhere
either
in
your
mobile
or
computer,
and
then
you
can.
You
can
present
that
graphical
credential
actually
offline
to
to
a
very
fair
to
verify
the
credential
and
then
the
third
one
third
component
called
pages,
and
so
the
agents
themselves
p2p
connection
with
each
other
to
to
transfer
to
share
the
equations
or
issue
the
credentials.
B
You
know
the
communication
between
themselves
using
a
standard
I
will
mention
that
later
and
for
the
standard
to
communicate
between
the
ages
and
then
the
last
one
the
distribute
lighter.
So
they
later
itself,
they
have
a
writer
he'll,
be
by
yourself
on
only
only
I.
Actually,
only
four
pieces
of
data
are
stored
or
saved
on
the
distributor
like
on
the
Indian.
Lighter
is
not
the
same
as
you
know
the
Bitcoin,
so
the
only
data
saved
on
the
capillary.
Indeed,
those
four
four
items
are
shown
here.
So
the
first
one
is
the
public
key
IDs.
B
So
for
each
of
identity
you
know
used
Oh
should
come,
can
be
kind
of
issue
of
the
credentials
they
need
to
have
the
ID,
so
that
piece
of
data
is
unchanged
on
the
lighter
the
next
one
is
the
schema.
So
the
schema
is
like
a
metadata
about
credential
I
will
show
you
the
actual
data
later
in
in
the
next
slide.
So
then,
after
the
schema,
the
schema
is
to
act
as
some
metadata
share
publicly
and
then
for
each
each
individual
credential.
The
user
wants
to
issue.
B
They
need
to
acquire
to
create
credential
definitions,
so
you
know
the
definition
is
a
specific
kind
of
object
or
description
about
the
schema
or
specially
in
the
implementation
of
the
schema
and
then
the
last
one
is
the
application
registry.
Where
is
used
as
a
factor?
Oh
you
know
as
a
as
a
piece
of
data
on
the
blockchain
which
can
be
used
to
check
if
the
current
credential
is
still
well
it
or
not.
Who
has
been
revoked
so
those
those
four
pieces
of
data
are
actually
saved
on
the
Indian
stuff.
B
All
the
other
data
is
like
the
credential
itself,
the
youth
the
data
actually
obtained.
So
you
know
to
quote
to
preserve
or
protect
the
privacy,
so
the
data
are
not
are
not
share
on
the
other
and
then
so.
This
slide
give
you
a
chastened
data
example
of
the
schema
and
then
the
credential
definition.
So
on
the
top.
B
If
the
as
a
recent
data
for
the
schema,
you
can
see
they,
the
red
line
highlighted,
are
the
attributes
names,
so
you
can
have
you
know
you
can
define
a
schema
for,
for
credential
requires
the
last
name,
first
name
the
prostate
and
etc.
So
those
are
the
attributes
you
defend
those
attributes
in
the
in
the
schema
under
the
schema
saved
on
the
hypervisor
clocked
in
then
you
as
a
leisure.
B
So
as
if
on
to
issue
a
credential,
then
you
need
to
create
a
credential
definition,
so
the
credential
definition
is
a
specific
case
for
for
the
schema.
So
you
see
the
red
line
highlighted
for
the
schema
ID
there.
So
that's.
The
definition
needs
to
be
linked
with
metadata
of
the
schema,
and
then
you
know
the
the
IRA
pointed
are
the
key
IDs.
Those
are
the
format
of
the
of
the
D.
Id
looks
like
a
Bitcoin
address,
so
that's
the
public
key.
B
C
The
middle,
so
that
person
you
have
normally
will
have
some
identity
trace.
Like
your
name,
your
job
job
title
your
physical
appearance,
then,
if
you
want
to
say
I
want
to
have
a
credential
issue
to
me,
then
you
go
to
an
institution
or
company.
So
you
gave
you
Fidelma
bank,
you
know
identity
documents
to
them
and
then
you
know
the
institution
will
exam.
C
C
B
B
C
B
C
C
B
Is
true,
then
the
company
can
create
an
employee
credential.
The
definition
under
inaudible
an
issue
implement
an
employee
credential
to
the
user.
You
can
say
that
you
know
you
know
you
know
mobile
and
then
the
user
can
use
another
PID
present
the
the
employee
credential
to
a
bank
to
apply
for
loan,
no
saying
I'm
working
for
big
company.
You
know
I
need
a
loan
mortgage,
something
like
that
to
verify
my
employee
credential.
So
that's
kind
of
like
multi-party
credit
or
usually
no
gratification
purpose,
then
so
from
now,
I
will.
B
C
Said
and
then
they
can
use
the
solution
for
their
existing
users
or
investors
to
invest
to
buy
their
asset
in
our
then
you
know
model,
you
see
the
similarity
of
the
three
Cerrito
main
identity
model,
so
you,
as
a
user
logging
on
to
the
system,
you
have
a
user
account,
then
for
each
of
the
user
you
have,
then
you
can
create
multiple.
The
IDs
using
the
private
key
public
key
cryptography
then
move
into
different
asset.
C
You
know
different
asset
could
be
a
company
shares
or
could
be
communities
like
the
gold
bars
and
then
for
each
different
asset
issuers.
Then
they
could
create
different
in
the
schema
in
the
credit
or
definition
and
then
the
the
Kryptos
definitions.
Then
they
in
the
user,
the
investor
you
know
they
come
in,
they
login
to
the
system.
Then
they
go
to
the
different
human
issuers
and
then
they
asking
for
them
to
issue
their
kyc
credentials,
because
you
know
like
such
thing,
like
the
digital
asset,
investment
or
steal,
you
need
to
be.
C
You
know,
compliant
with
the
KYC
rules
among
rules.
Then
the
user
needs
to
give
permission
for
the
you
know,
for
the
investors
to
be
able
to
invest
in
their
assets.
So
in
this
case
we
use
the
Apple
ID
in
D.
You
know
the
schema,
credential
definition
and
credentials
to
do
the
KYC
to
do
the
the
issues
of
currency.
After
you
know,
the
investor
got
the
currency
credential
issued
by
especially
the
issuer.
C
Then
they
can
invest
in
the
specific
I
said
and
also
there's
another
usage
for
the
private
key
public
key
cryptography
as
sending
sending
signature
tools
to
send
the
recording
contract.
So
when,
as
the
investor
a
wants
to
you
know,
sell
the
asset
to
a
mr.
P,
then
they
could
use
their
own
private
key
to
son
and.
C
Of
the
underlying
I
said
so
here
is
there's
a
high
level
of
enough
architecture
overview
of
the
of
our
core
system.
We
have
two
men,
two
men
modules
in
the
middle.
We
call
the
cross
pool
base
and
then
the
circle
on
the
left
and
red
circle.
We
call
the
cross
for
client.
It
holds
something
the
the
UD
connections
to
indeed
network
and
also
our
system
connecting
to
the
author,
encoder,
PRT
or
blocked
in
network
as
well
for
the
token
transaction.
So
each
of
this
cross
coolant
will
have
their
own.
C
You
know
user
base
using
madam
system
the
issue
different
SS
based
on
the
resource
requirements
and
then,
once
the
token
issued,
then
once
the
investor
got
the
token
transfer,
you
know
to
a
trade
with
another
user,
then
the
you
know
the
token
and
then
the
credential,
the
chemist,
a
credential
I
mentioned
in
the
previous
slide.
We
will
send
to
the
cross
who
pays
first,
then
the
credential
or
the
KSA
will
be
sent
unverified
by
the
cross.
Who
pays
the
piper.
C
C
They
called
80
80,
where
you
know
the
agent,
the
in
the
agent
can
connect
with
each
other
and
then
to
communicate,
to
share
the
credentials
and
issue
and
unverified
actually
and
we're
at
the
credential.
So
those
two
bottom
layers,
the
identity
matter
system.
So
there
are
regulated
or
controlled
by
the
machine,
know
by
the
by
the
rules
without
too
much
intervention
of
the
human
of
human
beings
and
then
the
top
part,
with
top
two
layers
more
about
human,
human
trust
and
the
human
intervention
intervention
in
the
in
the
in
the
self
sovereign
oddity
ecosystem
there.
C
The
layer
3
is
about
the
credential
exchange,
so
you
have
the
four
three
issuers
holders
and
the
firefighers.
Those
are
the
you
know,
the
real
individuals
real
companies
they
need
to
before
they
can
issue
or
verify
the
identity
they
need
to
trust.
Then
they
need
to
build
the
trust
before
to
use
the
before
using
unity.
To
you
know
to
do
the
issue
and
on
top
of
very
top
the
layer,
the
governance
layer
in
the
in
the
network.
C
There
are
some
several
rules,
they
called
you
know,
trust
anchors,
fabulous
authorities
where
they
set
up
the
permissions
to
you
know
who
can
write
the
credential
schema
on
the
blockchain
and
who
can
issue
the
credential,
so
those
are
more
about
human
control
put
in
place.
Those
are
the
top
two
layers.
So
there's
as
though
those
are
the
four
layers
of
the
SSN
standard,
then
I
mentioned
earlier.
That's
the
Revelator
in
the
network
or
the
sovereign
sovereign
network
self.
It's
also
kind
of
a
layered
network
in
the
network,
Co
of
the
India
Network,
the
validator
pool.
C
C
And
then
the
observer
pool,
so
the
observer,
who
read
only
those
other
knows,
can
only
read
the
data
from
the
Thunder
later
without
the
rip
at
the
writing
permissions.
And
then
you
know
the
very
outside
layer,
though
those
are
the
called
the
cloud
agents
or
the
wallet.
Those
are
the
thing
about
like
the
decentralized
application
yeah
or
that
you
know
in
in
our
case
the
crossbow
in
our
court
system,
those
those
other
systems
can
interact
with
the
edge
agents.
C
So
those
are
the
layered
communications
among
the
agents,
the
indie
networks
itself,
so
the
public
indeed
is
itself
is
not
one
application.
Is
it's
a
suite
of
tools
and
libraries?
You
know
the
word
bohtan
here
there
is
I
saw
the
defibrillator
versa.
Testing
library
is
a
crypto
cryptographic
library.
C
C
You
can
use
reference
yourself,
those
the
blue
boxes
for
the
indie
network,
the
lighter
itself.
So
if
you
want
to
just
run
in
the
network
in
the
lighter,
you
can
download
the
software
from
the
github
and
then,
on
the
left
hand,
side,
the
green
boxes,
the
Indian
agent
at
the
Indy
SDK.
Those
are
the
tools
and
the
libraries
using
these
to
implement
the
Indy
features
new
functionalities
and
to
enable
our
tools
or
our
application
to
communicate
with
the
Indian
network.
C
C
C
B
C
A
B
B
So
we
only
have
three
issues
in
terms
of
investors,
not
that
much
so
and
also
the
indie
network.
We
are
well
really
it's.
Actually.
We
are
holding
the
indie
lighter
or
indie
indie
network
itself,
so
we
run
like
a
four
nodes
in
the
network
and
all
the
credit
or
the
data
or
hosted
on
the
it
is
virtual
machines.
So
the
performance
is
it's
okay
and
then
you
know
in
the
next
in
the
next
phase.
Actually
we
are
engaging
with
sovereign
foundation,
so
sovereign
foundations
they
are,
they
are.
B
They
are
doing
public
in
the
network
Indian
in
the
later,
so
that
you
know
that's
supposed
to
be
sure
globally,
all
the
other,
you
know,
credentialed
schema
theta,
the
vanilla
theta
can
be,
can
be
sure.
So
we
you
know
we
intend
to
use
that
later.
Then
leaders
will
you
know
that
will
spare
our
efforts
to
run
our
system,
the
indie
node?
So
we
don't.
We
don't
need
to
go
back
to
this
one,
so
we
don't
need
to
run
the
validator
to
absorb,
for
those
will
be
like
run
a
hosted
by
the
sovereign
foundation.
A
C
It's
a
it's
a
it's
a
suite
of
software,
so
you
can
run
you
can
write
yourself.
I
say
explain
to
Julian
for
the
current
one.
We
have
a
comeback.
You
know
the
links
here
that
the
app
dot
crossbow
dot
IO
is
a
it's
our
current
production.
You
know
the
beta
version,
that's
all
the
services
are
hosted
on
a
device,
and
so,
if
you
prefer
to
run
your
own
version
of
organization
or
he
should
perform,
you
can
have
the
whole
thing
branding.
A
C
So
we,
you
know
this:
we
have
a
software
software
in
our
provider.
We
we
can
provide
the
whole
thing.
You
can
either
run
in
your
own
premises,
using
here
say,
for
example,
the
indie
network
encoder
to
have
your
own
network
or
you
can
join
the
public
in
the
network
or
public
coda
network
to
you
know
to
sheriff
de
alcalá
Bali.
So
it's
all
up
to
the
to
the
you
know
the
software
or
the
the
whole
from
owner
to
decide.
C
C
B
A
A
C
C
C
We
just
know
lessons
the
lessons,
the
software,
so
it's
kind
of
the
license
fee
and
and
also
depending
on
the
negotiation.
You
could
say.
Okay,
you
know
just
a
small
amount
of
license
fee
and
the
commission
on
the
transactions
you
can
have
in
your
platform.
Oh,
you
can
have,
like
you
know,
a
big
son
of
lessons
fee
without
the
lessons
the
Commission
charge
later
so
is
yes,.
A
C
That's
I
explained
to
Casey:
do
you
see
we?
We
are
so
for
software
provider,
so
we
provide
the
software
to
the
you
know
to
the
issuer
to
the
actually
the
issuer,
so
the
user
of,
for
example,
if
the
Essure
is
the
bank
or
is
another
you
know
company,
they
want
to
issue
shares,
or
maybe
you
know
this
is
a
of
incubator.
They
want
to
know
issue.
The
shares
for
their
incubated
project,
then,
is
in
the
relationship
between
the
earth
and
then
the
user.
C
So
we
we
charge
the
issuer
for
the
software
license
fee,
and
then
you
know
for
unbuilding
on
boarding
fees,
and
you
know
verification
phase
or
both
on
face
actually
absolutely
the
issuer.
So
the
issuer
is
actually
our
our
client
I.
Don't
know.
If
you
understand
you
know
we're
not
saying
we
are
not
pass,
so
we
are
not
providing
blockchain
as
a
service,
so
the
Union
you
just
register
on
our
system.
We
could
do
that
now.
We
just
provide
the
whole
suite
of
software
to
to
potential
issuer.
I
said
you
sure.
C
B
C
C
So
if
you
want
to
totally
host
the
two
networks
within
your
own,
you
know
within
your
own
data
center
test
test
option
as
well.
Oh
you,
if
you
want
to
say,
configure
the
note
to
join
the
public
India
net
worth
and
public
code,
an
animal
is
stowable
as
well.
So
it's
just
a
matter
of
configuration
in
the
in
the
software
package
and
and
then
no
obviously,
if
you
want
to
run
the
India
Network
and
the
coordinate
with
yourself
as
well
incur
extra
cost
to
you
know
you
have
to
have
the
extra
note
Randy.