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Becoming a blockchain professional


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Learn how to become a blockchain professional

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Becoming a blockchain professional

  1. 1. Becoming a Blockchain Professional Portia Burton Bits and Chains
  2. 2. Who Am I? Full-stack developer (mostly Python/JS) Blockchain educator Creator of the website bits and chains
  3. 3. Question: What is bitcoin/blockchain?
  4. 4. What is Bitcoin? Type of Cryptocurrency Creation based on paper by Satoshi Nakamoto titled “Bitcoin: Peer-to-Peer Electronic Cash System” Peer-to-peer which means transactions happen without a third party. Alice can send money directly to Bob
  5. 5. Bitcoin Ledger
  6. 6. Ledger offers Transparency by Design!!!!!!!!
  7. 7. Question: What are some of the use cases of bitcoin?
  8. 8. Bitcoin and Humanitarian Issues 1. Directly send money to disaster victims and decrease instances of charity fraud. Hold nonprofits more accountable 1. Help the unbanked have access to managing and distributing capital 1. Remittances, less expensive and more efficient way to send money to relatives and friends residing in developing nations
  9. 9. Bitcoin Microeconomics Good for small businesses: Charges for transactions are usually well below 2%, much lower than credit and debit cards Efficient way of paying freelancers Financial vehicle for people looking for yield. An alternative or complement to 401k or index fund
  10. 10. Bitcoin is not the only Cryptocurreny out there...
  11. 11. What is a Blockchain? A blockchain is an immutable decentralized data store.
  12. 12. Blockchains and Smart Contracts Stored on the blockchain and executed by code Many smart contracts are written in Solidity Powered by gas which can be computationally mined or purchased in an exchange
  13. 13. Example of Smart Contract pragma solidity ^0.4.0; contract SimpleStorage { uint storedData; function set(uint x) { storedData = x; } function get() constant returns (uint) { return storedData; } }
  14. 14. Question: What are Some Practical Use Cases for Smart Contracts?
  15. 15. Democracy and Governance
  16. 16. Democracy as We Know It Can Change Voting can occur on the blockchain Some agreements will be controlled by code as opposed to legal contracts Alternative way to keep track of identity Laws and bill can be kept on the blockchain which will create a permanent immutable record
  17. 17. Less Sharing in the Sharing Economy
  18. 18. Blockchain Technology: Peer to Peer Profits Distribution of creative digital assets flows directly from artist to fan Ability to rent out rooms and rides without giving a portion of the profits to Uber or AirBnB
  19. 19. Blockchain in the Nonprofit World
  20. 20. Blockchain: Solutions to Urgent Social Problems Creating identity that is not based on Nation or State (like the initiative between the World Bank and Accenture) Provenance is using blockchain technology to create and analyze seafood supply chain (guard against seafood acquired by forced labor)
  21. 21. Question: How does one become a blockchain professional?
  22. 22. 1. Get a foundation in blockchain technologies 1. Make a list of cool “ah-ha” moments that you get while learning more about blockchain 1. Make a list of your company’s pain points that blockchain technology addresses 1. Make a pitch to your current or future boss the expertise you bring to the table Steps to Become a Blockchain Professional
  23. 23. Drive Your Professional Future:Take Initiative 1. Create a Career Roadmap 1. How to Create Your Own Job 1. How to Pitch a Big Idea to Your Boss
  24. 24. But Where to Begin?
  25. 25. Places to Learn More About Blockchain 1. B9Lab 2. Bitcoin and Cryptocurrency Technologies 3. Udemy Blockchain 101 4. Coursera Bitcoin and Cryptocurrency Technology 5. Government Blockchain Course
  26. 26. Introduction to Ethereum Ethereum is a programmable blockchain, every new blockchain spawned from Ethereum has the same properties as Ethereum Ethereum Virtual Machine is the low level machine language Is Turing complete, unlike bitcoin which does not have looping capabilities It also is aware of multiple states, unlike bitcoin which is only aware of two states (spent and unspent)
  27. 27. Different Consensus Mechanisms Proof of Work: Uses the Etash DAG algorithm. The Etash DAG algorithm is based on Bitcoin’s the Dagger-Hashimoto algorithm. Proof of Stake: Proof of Stake is another way of validating. It calculates the weight of the node, being proportional to its computational resources. It’s less resource intensive than Proof of Work.
  28. 28. Ethereum Blockchains Public blockchain: It is the official Ethereum chain that everyone can read and interact with Testnet blockchain: The official test chain of Ethereum. Good way to test contracts without wasting real ether
  29. 29. Private Chains* Consortium Blockchain: Preselected Nodes are selected. Good example of this would be R3 Private Blockchain: Only one organization is permissioned to use the blockchain *The difference between a private blockchain and a public blockchain is similar to the different between the internet vs intranet. One network is outward facing, while the other network is specific to a company or organization
  30. 30. Case for Public Blockchains ● More developers actively maintaining the blockchain, which can make it more secure ● Lower influence of lone bad actors
  31. 31. Case for Private Blockchains Transactions are cheaper since there are less nodes Easier to scale, and to experiment with new technologies “Know Your Node” Multiple ways to verify node identities, which makes it more secure
  32. 32. Parity
  33. 33. What is Parity? Rust client for ethereum Includes a light client Wallet which includes a robust dev environment for interacting with the ethereum blockchain
  34. 34. How to Start Parity Chains Parity --testnet Parity --chains dev
  35. 35. Configure Parity using the Toml file Account UI Network
  36. 36. Must get Ether!!
  37. 37. Or if you are not interested in this setup there is a vagrant file…...
  38. 38. Demo Time!!!!
  39. 39. Goals 1. Create a new account 2. Send ether 3. Create a coin
  40. 40. Developers How to Get Started 1. Creating a Dapp in Parity/Ethereum 1. Introduction to Ethereum Smart Contract Development 1. Solidity by Example
  41. 41. Contribute to Open Source 1. 2. Go Ethereum 3. Hyperledger Project
  42. 42. Bibliography 1. 2. 3. What is Blockchain 4. Private Blockchains 5. Intro to Parity UI 6. Morden vs Ropsten Testnet 7. MakerDao 8. Mining
  43. 43. Bibliography 11. Solidity Docs 12. Accenture Identity Management 13. Parity 14. Parity Progress Report 15. Combating Slave Labor with the Blockchain
  44. 44. Portia Burton Creator of