Codemash 2018 – Intro To Blockchain

Presenter: Shannon Wells

  • Blockchain
    •  Trust
      • To enable trust between two unrelated parties that want to exchange something of value
    • Ledger
      • A record of transactions
    • Distributed
    • Borderless
      • Beyond any one currency or nation
    • Level of transparency depends on use case of block chain
  • Transaction
  • Node
    • Any computing device is granted access to the network
    • Perform actions, mine etc….
  • Network
    • Peer to peer.
    • All nodes agree on same rules to validate transactions
  • How is a block added
    • Node broadcasts block to network
    • Other nodes verify, when consensus then block is finalized
  • Merkle Tree is structure used for chain
  • Smart Contracts are code stored in the blockchain that when run add transactions
    • Can’t change once deployed
    • Free to read, charge to write
    • Walked through ethereum smart contract example

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