Introduction to the Blockchain Technology. References the Bitcoin, Ethereum, ICO and more. Features - history and prerequisites, technology and applications.
15. Who is?
Hal Finney
1st Bitcoin Transaction
PGP Employee
Nick Szabo
Bit Gold
Smart Contracts
Wei Dai
b-money
Crypto++
Dorian Nakamoto
Finney’s neighbour
17. Bitcoin Foundation
Gavin Andresen
Main Bitcoin Core
developer after
Satoshi
● Standardize, protect and promote
the use of cryptographic money
● Modeled on the Linux Foundation
● Funded by for-profit companies
that depend on the bitcoin
technology
28. Keys and Addresses
● Private Key - 256bit random number
● Public Key - Generated from the PK using ECC
● Address = RIPEMD160(SHA256(Public Key))
● One can have multiple addresses
14fxjE3qepjaYxiqs5WPtDx5y7vMQP81mW
29. Wallets
● Hot Wallets - online
● Cold Storage
○ HDD, USB …
○ Paper Wallet
○ Hardware Wallet
● Other
○ Tattoo
○ Memorize
31. Bitcoin
● The first
● Highest valuation
● Strongest community
● Not really anonymous
● Hard fork from August 2017
● Other cryptocurrencies (altcoins)
32. Ethereum
● Distributed computer
● Smart contracts
● Turing-complete
● Programming in Solidity
● Easier for development than Bitcoin
● DAO, Tokens, Crowdsales
Vitalik Buterin
33. Hyperledger
● Open-source cross industry
blockchain technologies
● Linux Foundation
● Funded by IBM, JP Morgan,
Cisco, Intel ...
34. ICOs
● Initial Coin Offering
● Capital raising by startups
● Whitepaper
● Similar to IPO and crowdfunding
● Scams
ICOs: https://tokenmarket.net/ico-calendar