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Blockchain Developers Meetup 05 - Introduction to Polkadot
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Milen Radkov
November 28, 2018
Technology
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63
Blockchain Developers Meetup 05 - Introduction to Polkadot
https://hack.bg
https://meetup.com/blockchain-developers-meetup-bulgaria
Milen Radkov
November 28, 2018
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Transcript
None
About me • Founder and CEO of hack.bg • Full-stack
developer • Blockchain enthusiast and developer • Email:
[email protected]
• Twitter: @milen_radkov • Milen Radkov
What happened recently? • Aeternity is LIVE • BCH hard
fork • Ethereum 2.0
Aeternity mainnet launch
Bitcoin Cash hard fork BCH ABC BCH SV
Ethereum 2.0 https://ethresear.ch/ https://ethereum-magicians.org/ More info: VM improvements - EWASM
(https://github.com/ewasm) PoS (Casper), Beacon chain Sharding https://github.com/ethereum/eth2.0-specs/tree/master/specs/core
Introduction to
What is?
a network that connects Blockchains is Attempting to solve problems:
1. Interoperability 2. Scalability 3. Shared Security
How does work ?
network • Validators • Nominators • Collators • Fishermen
network • Validators - Secure the relay chain by staking
DOTs, validating proofs from collators and participating in consensus with other validators
network • Nominators - Secure the relay chain by selecting
good validators and staking DOTs
network • Collators - Maintain parachains by collecting parachain transactions
from users and producing state transition proof for validators.
network • Fishermen - Final security frontier, they monitor the
network and prove bad behaviour to validators
Start your own node using Docker Polkadot / Substrate Workshop
Goals
Laptop Docker Requirements Wifi
Readme Riot How to start Rust Toolchain https://github.com/paritytech/polkadot https://github.com/paritytech/substrate Build
and wait …
docker pull chevdor/polkadot:0.2.17 Step 1: docker pull chevdor/substrate
docker run --rm -it chevdor/polkadot:0.2.17 polkadot Step 2:
mkdir -p /home/<youruser>/polkadot-data Step 3: docker run --rm -it -p
30333:30333 -p 9933:9933 -v / home/<youruser>/polkadot-data/:/data chevdor/ polkadot:latest polkadot
Step 4: docker run --rm -it -p 30333:30333 -p 9933:9933
-v / home/<youruser>/polkadot-data/:/data chevdor/ polkadot:latest polkadot --name "hackbg"
Now what? Dashboard and Monitoring: http://telemetry.polkadot.io http://gav.polkadot.io/ https://poc-2.polkadot.io/#/explorer (All hosted)
https://polkadot.js.org/apps/#/explorer (need local node) https://polkadot.js.org/apps/next/#/explorer
Thank you
Resources https://1ml.com/ https://www.coinrivet.com/lightning-network-hits-massive-capacity-growth-in-just-a-month/ https://www.youtube.com/watch?v=lIghiCmHz0U&feature=youtu.be https://www.reddit.com/r/dot/comments/8xmns6/welcome_to_polkadots_subreddit_read_this_guide_to https://blog.aeternity.com/introducing-roma-the-first-live-implementation-of-the-%C3%A6ternity- blockchain-5a1cebfc3384 http://polkadot.io/ https://riot.im/app/#/room/#polkadot-watercooler:matrix.org https://github.com/w3f/Web3-wiki/wiki/Polkadot