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Blockchain Developers Meetup 05 - Introduction to Polkadot

Blockchain Developers Meetup 05 - Introduction to Polkadot

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Milen Radkov

November 28, 2018
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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