A new ÐAwn

Parity & Friends, Jan 2019

Benjamin Kampmann , gnunicorn.org

👋 Hello

Benjamin Kampman

Substrate Core-Dev, @parityTech

GNUnicorn.org // @gnunicornBen

Background: The Social Web, Privacy-first offline-ready P2P- Networks & -Communities

ÐApp

the future

pasts

infrastructre

it old

Where are all the ÐApps at?

Lot's happened

Plethora of EVM-Smart-Contracts
Gazillion ICOs too many don't actually need blockchain
more platform: Steem, EOS
& Frameworks Status.im, Aragon
more privacy: Zcash, Grin
Dat's BeakerBrowser, Opera mobile
ManyVer.se mobile client

more noise than signal

why is that?

Because building a ÐApp is actually hard

A simplistic, popular game effectively broke Ethereum
your ÐApp might be effected by the popularity of unrelated ÐApps
opposite network effect at play
we moved the scalability issue from the network one layer higher to the application

EVM-Contract "Game" around fungible assets: collecting cats, breeding and trading them 🌷

twitter-like social network on Ethereum contract
learnings from cryptokitties
see their FAQ
- use ETH primarily for accounts
- batch updates
- allows for free peeping
- actual content on IPFS
closed-source frontend to ethereum contracted data
effectively centralised control through contract ownership

Zcash

zkSnarks-Based Zero-Knowledge Transactions
forked Bitcoin-Client code base to build
launched Oct 2016

Grin

MimbleWimble private transactions
build rust client from scratch started Oct 2016
launched Jan 15th 2019

Smart Contract

fine with contract-model
& its sandbox
okay with the gas-meter-market
alright with privacy implications

BYOE

Bring Your Own

EVERYTHING

SUPER HARD to get right
costly to expensive
a lot of unnecessary work

+ additional (centralised) Services

Because building a ÐApp is actually hard

missing decentralized solution lead to centralized fixes
having to build the entire stack is an unnecessary barrier to entry & stifles innovation

A new ÐAwn

parity.io/substrate

Substrate ...

... is a Polkadot compatible, general purpose blockchain development kit in rust

... allows you to focus on the actual chain logic when building your blockchain

Substrate Node

Substrate

Chain Runtime

Networking

Block Sync

Database

Consensus

"state transition function"

Achievable

Substrate Collectibles Workshop

Jan 28th, 2019 @ Ahoy

intermission

Showing the Workshop Material by @shawntabrizi

tiny.cc/paritySubstrateWorkshop

is this "the new future"?

Everyone building their own chain?

well, maybe?!?

to consider

building a runtime is still "harder" atm
- other language (Rust), less experienced, fewer tools
interactivity between ÐApps ...
- you can't just 'call' a function on a different chain
Your chain, your network
Different code-reuse-model