Computer History Notes - Herong's Tutorial Notes - v3.14, by Herong Yang
What Is Bitcoin Blockchain
This section describes what is Bitcoin Wallet.
Bitcoin Blockchain is the database that stores the all Bitcoin transactions in a list of sequentially chained blocks.
A block in the Bitcoin blockchain contains the following primary information:
- Timestamp - Specifies when this block was created.
- BlockHash - Acts as the fingerprint of this block.
- Previous BlockHash - Links to the previous block.
- Nonce - The salt value added to the block which resulted a valid blockhash.
- Transactions - A list of transactions recorded in this block.
Below is a rough illustration of Bitcoin blockchain (Blockhash is labeled as "Proof of work"):
Table of Contents
►2009 - Bitcoin Cryptocurrency Invented by Satoshi Nakamoto
2002 - .NET Framework Developed by Microsoft
1995 - PHP: Hypertext Preprocessor Created by Rasmus Lerdorf
1995 - Java Language Developed by Sun Microsystems
1991 - Python Language Designed by Guido van Rossum
1991 - WWW (World Wide Web) Developed by Tim Berners-Lee
1991 - Gopher Protocol Created by a University of Minnesota Team
1984 - X Window System Developed a MIT Team
1984 - Macintosh Developed by Apple Inc.
1983 - "Sendmail" Mail Transfer Agent Developed by Eric Allman
1979 - The Tcsh (TENEX C Shell) Developed by Ken Greer
1978 - Bash (Bourne-Again Shell) Developed by Brian Fox
1978 - The C Shell Developed by Bill Joy
1977 - The Bourne Shell Developed by Stephen Bourne
1977 - Apple II Designed by Steve Jobs and Steve Wozniak
1976 - vi Text Editor Developed by Bill Joy
1974 - Internet by Vinton Cerf
1972 - C Language Developed by Dennis Ritchie
1971 - FTP Protocol Created by Abhay Bhushan
1970 - UNIX Operating System Developed by AT&T Bell Labs