foreign
[Music]
hi my name is Adrian I'm the founder of
sismo and I'm excited to speak today
about GK buddies that are new primitive
for you to leverage fully your own chain
data you also bring data so this talk
will cover the notion of sovereign
occurrence self-solving identities but
but before getting into that I'd just
like to spend a few words about sismo
we started this move because we are
concerned about the centralization and
lack of privacy of our recurrent social
tools and digital identities
we think that there's too much power in
the hands of big companies holding our
personal data and in governments that
can access it at will and so what we
want to do is really to add a privacy
and the centralization layer in identity
systems so that will remain Sovereign we
want to protect human sobriety meaning
that we want to be sure that individuals
remain in control of their societies and
that we keep unchecked the central
entities that are public or private
institutions what we do is build
Primitives to empower our self-solving
identities so the first primitive that
we built are ZK badges
they allow you to leverage your serving
data we'll see that later but there are
soluble tokens there are non-trustworld
tokens that are attestation meaning that
when you have SDK badge it means
something about your identity your data
your reputation your history they allow
to you to do three things first they
allow you to import reputation from an
account to another let's say I have
let's say that I have a point content
address and I want to prove that on
another address have an attestation I I
get to ZK batch on the new address and I
have the proof that I have a book it
also allows me to selectively reveal
what I want from my account so
granularly reveals some personality
let's say that I have an account with a
lot of data I'm able to pick one piece
of data let's say the crypto pen
ownership and I'll be able to reveal
that to someone I own that without
giving my address or anything else the
the last thing is it allows you to
aggregate your data let's say that you
have a punk on an address and a bank on
another one and you'd like to prove that
you have two punks without creating a
link between your accounts that's what
DK badges allow you to do so it allows
you to do to control your identities and
without creating links between them so
now I think that before getting into the
the technical parts of the SDK badges
I'll I'd like to spend some time on
self-serving identities and because
that's what budgets for we built that
it's it's our goal is really to
with DK Badges and generally with cismo
is to make our Sovereign identities more
powerful better than web 2 identities so
better than your Google account so a web
2 identities a web to energy in the web
to world the ITT is stored in an account
let's say your Twitter account you
choose your username your password and
they give you an account actually they
don't really give you the accounts it's
still theirs but you can access it if
they are willing to and you start
doing things on Twitter you interact
with others and you are starting to
build your identity so here you have an
identity in a webto account that is not
yours it's your identity you have the
same with Facebook with with Instagram
with LinkedIn you have your identities
that are on rented accounts an
interesting thing about this identities
is that you still have some control over
them you can use them to connect to
other services that's the singer sign-on
for instance I can connect to typefully
with my Twitter account and it allows me
to
um I can bring some part of my identity
that is on on Twitter to type free so
there is some sort of portability but of
course it's super easy restricted at any
point if Twitter thinks that I produce
is competing with Twitter they will
remove the access of these accounts so
we see that yeah
web 2 identities are not yours it's
super restricted what you can do as your
identities of course there's no
possibility to link your identities
together meaning that it's impossible to
create an event where you in you invite
your Facebook friends your Twitter
friends your LinkedIn friends because
they are actually competing on your
accounts like it's not your accounts
it's theirs it's their asset that's how
they make money they want you to put as
much data on it as possible and so
that's not your Idols you cannot fully
leverage it and on the other side we
have the Self Storage accounts data for
instance uh ethern wallet it's owned by
a private key meaning that the private
key is the thing that you must have the
priority to do anything with these
accounts what's amazing too is that is
permissionless anyone can create a self
surrender accounts without asking
permission to anyone so okay that's
great what I can do with it of course I
can start adding some ether to it for
instance and I can trade off uni swap it
starts also to build my identity now I
have some financial data on my account
that is mine I can buy ens name I can
buy a nft and I interact on social on
social medias on chain so by doing this
a bit like on Twitter I built my end
entity but this time this identity is
mine the data I need is mine and it's
controlled by my private Key by the way
by by using ens I also create this as a
public accountant numbers so very
interesting
so that's one part but actually steps
around accounts are more interesting
than blockchain they are bigger than
that because okay you can use the
private key to send transaction to to
use different applications but you can
you also use them to log in on into your
app I think you know using snapshot or
other applications that now you have
login system stems based on wallets
that's called sign in with ethereum and
you can log into an app traditional app
but instead of an email and password you
log in with your wallet so they also uh
awareness also an identities accounts
are better than than traditional
accounts even at work to stuff so okay I
can connect to snapshot with my ethereum
wallet I send a message they say okay
you're logged in and what's great is
that you bring your whole identity to
the app so what does Snapshot is okay
you're logged in as data entities oh you
have some other or you have some uni
swap tokens you can vote on my
governance with it so that's where you
cannot you you start to see the
sovereignty that we have over our
identities with wallets that I can bring
my identity to the app
but that's something that is less cool
because it's the beginning we immature
is the fact that when I do this I
actually share everything all my
identity let's say that I have An
Occurrence my menu account that is
private with a lot of data my erc20s my
assets my nfts so many things and that I
want to access an app
to let's say that are created by crypto
pen Corners because I just want to be
part of a cool community and access the
chat app using sign in with ethereum I
would have to connect with my main
wallet and give so much data about
myself here what we saw is that
at every time that I connect to an app
with learning with them I bring all my
data but again the sales training
accounts are amazing they're controlled
by a private key and you can do even
more you can do zero knowledge proofs
and with this account you can basically
select a piece of data that you want to
share and and that's it so
again it's super powerful and that's
everything
that's that's what badges are about it
allows you to selectively reveal some
part of your Sovereign data
so again what they are they are
tokenized at attestation meaning that
when a wallet has this SBT this
non-trustable token it means that it
means something about the identity it's
an attitation like they have a crypto
plane the Virgin Island governance they
have a certain number of Twitter
followers stuff like that
it's DK because it's it's minted by a ZK
attester this is a smart contract that
accepts zero knowledge proofs and okay
you brought me the knowledge proof that
you have a crypto bank now I give you
the badge that you have a crypto pack
and it's on evm chance uh it's uh
deployed currently on polygon but we
plan to go everywhere especially on on
layer 2 of course now a small thing
about badges that small Nuance that's
not very important but still these are
ERC 1155 each batch has a token ID in
this contract and that means that each
bus each badge is a sort of erc20 it's
not really a NFC so erc20 and for the
same batch you can have different
balances so we'll see that later why is
interesting but
you have a value of the attestation
corresponding to the balance of your
badge and the higher balance maybe it
means that you have more followers or
your batch means more we'll see that
later so the process of minting a
gigabad is pretty simple
I have a source account here is the
internet.if I have data I need my
solving data one piece of data is that I
have a crypto bank I want to prove it
I'll generate SDK proof and send this ZK
proof to the adjuster the accessor
validates that okay
the legend that it has a punk I value
that I mean the badge but the SDK tester
at no point will know about my address
last thing he does is that it stores
only fires we'll see that later
so to to really understand better GK
badges I like to use two identities
let's say that I have my public wallet
again they do not use I have my ens
names I donated a Bitcoin I'm a verified
human meaning that I docs myself I
uploaded the video with my name Master
name and it's linked to my address so
this address is completely docked like
everybody can know everything about it I
have some nfts I only need two
conferences so I have some perhaps
and actually I have another wallet this
is this mine is my private wallet that's
where I do my DJ and stuff I have a lot
of transaction I maybe have a lot of
assets hopefully that's the dream I
don't have this but that will be cool to
be addition a lot of assets a lot of
nfts a lot of things I don't quite sure
that I never want to connect them
together but
I want to use them together because both
have valuable data and I want to use
them together so that's what rgk badge
is about so the first thing that it
allows you to do I'm a verified human on
daytime.heath I'm doxed but now let's
say that I want to access my private
wallet an application that requires you
to prove that you are human
of course I don't want to link them
together
so what I'll do is that I will have the
proof of humanity the key batch online
wallet and it will just reveal what I
need that is I'm a human I have
somewhere a Social account that is doxed
and I was able to do this badge only
once okay
so now we'll get into the technicalities
how everything is done the zkr tester I
told you about the one we currently use
is the Hydra s1z cat tester Hydra S1 is
for the proving scheme because we this
statistor accept a certain
type of GK proofs and I'll explain what
those UK proofs are so behind the
hydration tester there's always a group
of eligible accounts that's how it works
so for instance behind the ZK the proof
of humanity is the cable
there is the list of all the registrants
that are on the poh registry so of
course there is my address
we see this that there is a value to
each address to each account and this
value will be the balance of the batch
and with this you can
um you you can use it to to code some
sort of tiers so let's say imagine that
in V2 poh have a super verified user
like it's verified but very well with
kyc or I don't know what you could have
maybe the element is with the value 2
and it will give the badge with the
balance too and everyone that has two
badges like that has balance two of
these batch means they are super
verified so
again yes here is just you have pH UI in
the group with one you are not you're
not in the group so you have the group
of eligible accounts these are the
accounts that will be able to meet the
badge and we put them in a Merkel tree
it's a position Local 3 so that it's not
friendly which is that but in the leaves
you have all the eligible accounts we
have the root we publish the root and
chain and we'll see what we do use
everything so the the the the way the
the badges minted is first you go to
your front end so I wantismo I'm
connected with the adrenal is the four
seconds I first I upload the Merkel tree
now I have in iPhone 10 everything
happens on the front end that's what
guarantees the Privacy so on in my front
end I have the marker 3 I have my
account and what I will do I will do
three things first I will prove that I'm
the owner of daily not eat and these
three things will be done in the SDK
circuit so first thing I'm the owner of
the adrian.t second the original.e is in
the Mercury Beyond local proof and the
third thing is I actually own the
destination account let's make sure that
I cannot give budgets to others or that
I cannot spam another account
so these three things I I'm daniel.is
Source account destination accounts I'm
part of the tree I do that in the ZK
snack I get a ZK proof the ZK proof
reveals nothing but there is an address
that like this users has proved to have
an address that is part of the tree I
give that to the zika tester and the
decalter does two things first it
verifies the proof okay
it's valid ZK magic and then it register
a nullifier I think that there was some
presentation defconable this but it's a
way to make sure that from One Source I
can do only one batch and for this I
register on unifier it's the anonymized
version of my address basically that's
great and now I have my badge on my
destination account and there's no leak
nobody can know from this destination
account what account was used to
generate it so again we saw that this DK
tester
allows you to
prove from a group to create from a
group SDK badge and actually this is a
complete accessor anyone here in the in
the room can create its own Decay batch
that's what we build system we're going
to build this mode to do some
Partnerships or stuff like that it's a
primitive everything is open source of
course and very easily in 15 minutes if
you are developers we have a tutorial
that helps you with that you can fetch
from your subgraph from bigquery from
anything you can fetch your group choose
the metadata for your badge choose the
visual and that's done so again anybody
can create this DK badge can create the
group SDK version and we just released
today the factory of sismo it allows for
even people that are neither coder or
designer to build a GK badge it works
that way you you add metadata we have a
SVGA Editor to create your CK badge and
then you have just to copy past the list
of address you push the button and done
you have your ZK badge available so
that's I think that's super great so I
invite you to try that
um and before that I'd like to before
getting
yeah now I want to speak about the
protocol so we saw that this one is open
anybody can add its group it will have
your their own ZK badge for their user
Community but even better actually so
that's what I told you about anybody can
add this group you get the batch now
which is even greater for more advanced
developers is to create your own
accessor instead of you using the rules
of Hydra S1 I told you verify membership
verify ownership you can create your own
new rules to verify the user request so
for instance you can use simr4 it's
another SDK scheme that will be SDK
tester but you can also use a public
accessor like the proof that you would
require from user is not a ZK proof but
a worker proof and the signature easy
recover or you could even create a
centralized adjuster meaning that the
proof that you have to send to get your
badge is a signature of the third party
so again that's that's what we're trying
to do is really primitive we're not here
to
yeah we want you to have fun with this
so that you can really control the data
of your users and and that you can build
weird stuff like if I did in 2020 it did
real stuff with composability between
all the financial applications here what
we want to do is we'll stuff about the
social capital that you have so
that's it again all these open source
invite you to read the docs and I'll get
that so now we get back a bit uh to
recap a bit so what it allows you to do
I told you that it allows you to import
reputation from the public to an unknown
wallet but you can do the reverse again
if I was a degener in my and on wallet I
could import this reputation to my
public wallet have ethernet power users
only top 0.1 percent ethernet users can
means and so that way approved as they
generated that I'm a Degen but I never
revealed my wallet so that's yeah when
do you think the other thing if you
think about it what happens if I mint
the badge on a one-time address fresh
new address What I've Done by doing this
is that I'm able to reveal just exactly
what I need it's not about building an
identity is to I need to prove to
someone that I meet some quitter yeah I
create a new address I'm in the batch
there and I will also prove exactly what
I need so here on the adrian.e again I
have a lot of data one of the data that
is mine sorry is that I have a lot I
have the HTC prep and thanks to this I
can get I'm eligible to the proof of
attendance behind this Decay batch the
group of eligible user is people that
went to either a Defcon or HTC or eat
Berlin very legit physical events and so
I'm able to mean that to a fresh new
address and then I can use this address
to for instance get private
merchandising or access air jobs to get
into events and with this what I was
able to do is prove that I went into one
of the top conferences that I'm a human
and not that I went with no time the
Adrian that is that's that's leveraging
your data that's what we call it so it's
super excited about this the last thing
that we intend to do that is not life is
the way to aggregate your reputation
in cismo our governance is not token
based oh it is token basement but not
Financial token based it's been is based
on contributions meaning that the more
contributions you did for sismo the
higher voting power you have again it
reuses the thing that I told you about
the balance of the token basically the
more contributions you did
you the higher you will be in the tier
of contributor and the higher voting
power so here with ZK badges you will be
able to aggregate your reputation from
your private wallet that maybe you held
by using a lot sismo and from your
public wallet that maybe you help by
doing some threads some communication
about this more so yeah again I think
for governance power this is very very
interesting to have reputation based
governance instead of just uh like who
has been like instead of erc20 is only
that is financial capital or communities
that are ruled by your nft that you just
have to first come first serve and it's
like a airdrop Farmers this kind of
stuff here
these tokens means a lot and it's
private so you can really speak your
mind there's no risk at knowing that
you're a team member or I don't know so
we are super excited about this new
primitive
so now uh I I'd like to speak about the
long-term vision of system again
[Music]
I'm able to aggregate with you I am able
to aggregate data the way it works is
that basically anytime I want to use an
account to prove something about it I
will send a message with it and it gives
the second the ability to be in the ZK
world like from now on I can prove
everything about my data so the way it
works that I will import into the system
volt that you encrypted data volt that
is only accessible to yours I will store
the signatures that I told you about so
I sign with daniel.tis now I'm in the
world with the unknown I'm in the world
and now
as a user I'm the only one that has
access to all my data and now it doesn't
matter whether it comes from an address
to address or I don't know what
I'm the user I have
yeah access to everything and I can use
it as I want
so for instance let's say that I want to
access an airdrop and they require me to
prove that I'm a human that it's a CP
resistant harder that would be great to
have that so they require me to prove
and that I'm a human
and that I don't know that I traded a
lot on their platforms or that I am a
big user so that's what allows me the
world to do I can generate the ZK proof
let's say on the one time address on the
go and I can give I can connect with
standing resistance to this service and
review just what I want the the other
thing that is interesting is that you
can in the long run we are using Badges
and sbts because we think that they are
tremendously great at standardizing
things because everybody knows how to
fetch a token how to read your token and
that's why I think that
they have an advantage over PCS actually
because the standardization is is better
and you can do crypto native stuff you
can
what we did with ZK is the ability to
programmatically code repetition in in
in in some sort so we are very bullish
and this is nsbcs but but we are mainly
using tokens it's a big question why
we're using tokens because they are
great at standardizing once you have
reputation as a token it's super easy
for anyone to fetch it to know that we
have the sign in with the term tools and
all these things but on the long-term
vision
do we really need to send those UK proof
to a Smart contract to me in the badge
if what we want to prove is to a third
party let's say that I want to prove to
a merch store that I have crypto Bank do
I really need to send a badge on an
address maybe not I can directly send
the ZK badge to this third party so
that's the the big big vision of system
is ready to be to be a Google connect on
top of your server and identities you
add your all your accounts your Twitter
account your GitHub account you also
learn the address your Bitcoin whether
it's your ethereum wallet you upgrade
all of that and then when you want to
send to an app they say Okay I want a
bit like when you connect to with Google
connect they say okay they will access
your email your contacts your all these
things what we don't hear is that okay
I I connect with this more this app want
to see your amount of I don't know nfts
your total net worth all these things
and you choose you choose what you want
and if you choose your food to bring
your full reputation maybe maybe you'll
have access to the best services but you
can also choose to just reveal what you
want because if you don't want to give
to this application everything so yeah
that's that's uh really about system is
trying to we have more and more engine
data we have more and more great
projects that are bringing of chain data
to Unchained data but today we cannot
really leverage it we the Privacy is a
real issue about identity because we are
used to web to Identity
that are private because they are closed
it's closed Gates they don't want to see
anything so of course it's private by
Design but on web3 with public by Design
but this also caused some issues so I
hope that uh that I share my excitement
about what we can do with serving
identities and we're hiring by the way
so if the mission is exciting to you we
are very small team we are just seven
but we are very passionate about what we
do so feel free to reach out and again
everything is open source we spent a lot
of of energy to the documentation to the
quality of our code so
yeah we're here for the long term we'd
like to have many contributors and yeah
Reach Out thank you guys
do we have time for our questions or I
don't okay so if if you guys have
questions happy to
um hi thank you for the talk that was
super interesting so my question was
about
um updating of ZK badges so for example
in the example you gave you said you own
the punk and then you create the zika
badge that you own the punk what happens
to that badge when you transfer the punk
and don't own it anymore
yeah so actually for the Hydra S1
resistor
the badge is a snapshot meaning that it
doesn't update
but that's where actually the protocol
is interesting that you can create
another adjuster
that could be updatable and like I don't
know every like some
you could code that like the way to for
a central party to update the route
and make sure that the badges that were
issued are no longer issued but
I think that it's still a bit complex
and the best way is really to think
about DK badges as a snapshot
attestation and it's up to the
application to ask for users to renew so
yeah that's really the way we think
about it now
hi thank you very much uh really cool
stuff uh lack of privacy is of course
one of the barriers uh in this ecosystem
so thank you for addressing that uh I
have a general question about how do you
collaborate with
individuals and and projects within the
space because at the end of the day it's
about going to Market and it's it's
promoting your tool to yeah individuals
and teams that are building could you
explain what kind of projects
um any projects yeah yeah just more
generally what's your strategy to to
proliferate yourself okay so I think we
are a project that that should be used
by many applications first I think that
we are one of the first teams that are
using ZK for a very concrete case and as
I told you about we can have multiple
zika testers so if we have a ZK team
that has created a musical scheme we are
using row 16 uh Hydra as well that is
very specific but if another team has
another way to create attestations we
can think about change links GCO for
instance they are able to do the
characterization from web to data they
will come to visitor here and that's why
we beat it for other teams it's if you
want to do repetition within your
governance you can create your ZK badge
or even better you can create your own
zika tester and build logic in it and so
whenever somebody let's say Minto ZK
badge that I played on on a certain game
it updates the metadata of of their nft
or you can do so much things it's really
big to have fun as developers but it's
going to gain time for it to educate
everybody that
generally happy to speak with everyone I
have a question here uh really
fascinating talk super amazing and one
of the things that popped into my mind
when you said that this is comparable to
the D5 movement of the D5 summer
D5 came with a lot of hacks and a lot of
blood by fire so
how do you protect the Privacy say we
put all our addresses have this like
great identity and you know
how yeah some of the risk of that and
what do you see for that yeah when I was
doing that is that D5 was raw it was the
first time we discovered like before
Banks and insurance and all like all the
financial services were provided by
webto applications that didn't talk
together and we discovered what I can
deposit in a lending tool and then use
that to bring Nicky duty to an exchange
and then use that to take somewhere and
it's huge but we could do the same with
social
Capital like today
it's impossible to use your let's say
you are Uber driver
2000 drives five stars you cannot use it
to get a good loan
that's what we want to do like we want
to have credit score based on reputation
and you can access a better interest
rate so
so again we are new primitive that
should allow new stuff in a privacy
preserving way so yeah let's uh
I think it yeah I think it time's up for
now maybe you're really happy to stay
there for more questions okay
thank you
thank you very much