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An Introduction To Bitcoin, The Blockchain, and Cryptocurrency

The document provides an introduction to bitcoin, blockchain, and cryptocurrency. It discusses the speaker's background in cryptocurrency starting in 2013. It then defines key terms like bitcoin, ether, cryptocurrency, and blockchain. It explains how cryptography and digital signatures secure cryptocurrency transactions. Blockchain is described as a continuously growing list of transaction records linked together cryptographically in blocks.

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Madalinedgar
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55 views28 pages

An Introduction To Bitcoin, The Blockchain, and Cryptocurrency

The document provides an introduction to bitcoin, blockchain, and cryptocurrency. It discusses the speaker's background in cryptocurrency starting in 2013. It then defines key terms like bitcoin, ether, cryptocurrency, and blockchain. It explains how cryptography and digital signatures secure cryptocurrency transactions. Blockchain is described as a continuously growing list of transaction records linked together cryptographically in blocks.

Uploaded by

Madalinedgar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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An introduction to bitcoin,

the blockchain, and cryptocurrency


Overview
● About myself
● What is Bitcoin, Cryptocurrency?
● Breaking it down into layers
● Explore the blockchain
● Send some ether
About Me (Scott Bigelow)
- Received first crypto token in 2013 when a friend sent me Dogecoin
- Got into Bitcoin in 2014
- Ethereum early this year
- Joined Ethereum project Augur in October 2017
About Me (Scott Bigelow)
- Received first crypto token in 2013 when a friend sent me Dogecoin
- Got into Bitcoin in 2014
- Ethereum early this year
- Joined Ethereum project Augur in October 2017
About Me (Scott Bigelow)
- Received first crypto token in 2013 when a friend sent me Dogecoin
- Got into Bitcoin in 2014
- Ethereum early this year
- Joined Ethereum project Augur in October 2017
About Me (Scott Bigelow)
- Received first crypto token in 2013 when a friend sent me Dogecoin
- Got into Bitcoin in 2014
- Ethereum early this year
- Joined Ethereum project Augur in October 2017
Goals
- Holding Token
- Blockchain resists change
- Mining

- Cryptography
- Layers
Bitcoin is a distributed system which implements a
blockchain-based cryptocurrency
Bitcoin is a distributed system which implements a
blockchain-based cryptocurrency

Bitcoin is [unfortunately] ALSO the name of the tokens used


on the Bitcoin network
Ethereum is a distributed system which implements a
blockchain-based cryptocurrency
Ethereum is a distributed system which implements a
blockchain-based cryptocurrency

Ether is the name of the tokens used on the Ethereum


network
Cryptocurrency

Digital asset designed to work as a medium of


exchange using cryptography to secure the
transaction

Source: https://en.wikipedia.org/wiki/Cryptocurrency
HTTP
HTTP
Signed Transactions
Blocks
Blockchain
Mining
Signed Transactions

Crypto[graphy] currency
Signed Transactions

Crypto[graphy] currency

NO
ENCRYPTION
Signed Transactions

Digital signatures
● Scheme for demonstrating the authenticity of digital messages or documents.
● A valid digital signature gives a recipient reason to believe that
○ the message was created by a known sender (authentication)
○ that the sender cannot deny having sent the message (non-repudiation)
○ and that the message was not altered in transit (integrity).

Source: https://en.wikipedia.org/wiki/Digital_signature
Signed Transactions
Signed Transactions
Signed Transactions
Signed Transactions
Signed Transactions

Digital Signature Functions


createSignature(message, privateKey) => signature

checkSignature(message, signature, publicKey) = /


Signed Transactions

Where do we put them?


Blocks
Blockchain
Blockchain

continuously growing list of records, called


blocks, which are linked and secured using
cryptography

Source: https://en.wikipedia.org/wiki/Blockchain
Blocks
Blockchain

● Demo - https://anders.com/blockchain/
● Bitcoin Explorer - https://blockexplorer.com
● Ethereum Explorer - https://etherscan.io/
https://github.com/bitcoinbook/bitcoinbook - FREE

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