Slides from my talk shown at ChamberConf 2016, this was done in the Pecha Kucha format.

1. Bitcoin - Introduction for
programmers
Wojciech Langiewicz, Chamber Conf 2016
http://www.wlangiewicz.com

2. History
● Appeared in 2009 thanks to author
- Satoshi Nakamoto

3. What problem Bitcoin solves?
● Assigning a notion of ownership
to digital goods (bits)
● Ability to transfer ownership of
those goods (bits)

5. Online Bitcoin Exchanges
● Many companies are running various Bitcoin exchanges
● You can trade fiat currencies to Bitcoin

6. Bitcoin Wallet

7. Mining - overview
● Bitcoin nodes collect
unconfirmed transactions
and try to create new valid
block

8. Mining continued
● If miner finds a block, it’s announced to the whole network
● If miner tries to cheat, relay nodes will reject invalid block

9. Mining - creating new coins

10. Blockchain - overview
● The Bitcoin database
● Each block references
previous one

11. Blockchain
A little similar to Git
image source: Theymos from Bitcoin wiki CC BY 3.0

12. Blockchain
Blockchain is append only

13. Blockchain
Blockchain is also distributed
Without any central authority

14. Blockchain use case

15. Proof of Existence

16. Blockchain and accounting
● Double entry
accounting
● Each transaction has
2 sides
● Inputs
● Outputs

17. Transaction Inputs and Outputs

18. Transaction Types

19. Multisig Transactions

20. Thank you, you can read more here:
● https://github.com/bitcoinbook/bitcoinbook
- Very good and technical Bitcoin book
- Also the source for some of the images