Blockchain Developers Meetup 05 - Introduction to Polkadot

Transcript

1. None

2. About me • Founder and CEO of hack.bg • Full-stack

   developer • Blockchain enthusiast and developer • Email: radkov@hack.bg • Twitter: @milen_radkov • Milen Radkov

3. What happened recently? • Aeternity is LIVE • BCH hard

   fork • Ethereum 2.0

4. Aeternity mainnet launch

5. Bitcoin Cash hard fork BCH ABC BCH SV

6. 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

7. Introduction to

8. What is?

9. a network that connects Blockchains is Attempting to solve problems:

   1. Interoperability 2. Scalability 3. Shared Security

10. How does work ?

11. network • Validators • Nominators • Collators • Fishermen

12. network • Validators - Secure the relay chain by staking

    DOTs, validating proofs from collators and participating in consensus with other validators

13. network • Nominators - Secure the relay chain by selecting

    good validators and staking DOTs

14. network • Collators - Maintain parachains by collecting parachain transactions

    from users and producing state transition proof for validators.

15. network • Fishermen - Final security frontier, they monitor the

    network and prove bad behaviour to validators

16. Start your own node using Docker Polkadot / Substrate Workshop

17. Goals

18. Laptop Docker Requirements Wifi

19. Readme Riot How to start Rust Toolchain https://github.com/paritytech/polkadot https://github.com/paritytech/substrate Build

    and wait …

20. docker pull chevdor/polkadot:0.2.17 Step 1: docker pull chevdor/substrate

21. docker run --rm -it chevdor/polkadot:0.2.17 polkadot Step 2:

22. 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

23. Step 4: docker run --rm -it -p 30333:30333 -p 9933:9933

    -v / home/<youruser>/polkadot-data/:/data chevdor/ polkadot:latest polkadot --name "hackbg"

24. 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

25. Thank you

26. 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