A Distributed Database And Public Ledger

1. - Björn Wilmsmann -
Blockchain
A Distributed Database And Public Ledger

2. How can we create
transparency and build
trust?

3. First, a little bit of
history

5. Satoshi Nakamoto

6. On Distributed Communications Networks, Paul Baran, 1962

7. So, how does the
Blockchain work?

8. Block 1
Proof of work:
8eb412d8
Previous block:
9a800744
Transaction:
eec26
Transaction:
ddd9
Block 2
Proof of work:
3098ea98
Previous block:
8eb412d8
Transaction:
a408
Transaction:
449f
Block 3
Proof of work:
43816309
Previous block:
3098ea98
Transaction:
8e06
Transaction:
c622

9. Mining

10. Public, private and
hybrid chains

11. Benefits

12. Decentralised

13. Immutable

14. Auditable

15. Cost efficient

16. Openness

17. Guaranteed continuity

18. Decentralised trust.
Trustless transactions

19. Applications

20. Digital currency

21. Media copyright

22. Voting

23. eCommerce

24. Proof of identity

25. Proof of ownership

26. Supply chain
management

27. Shipping processes

28. Vendor compliance
management

29. Björn Wilmsmann
Stefan-George-Str. 15a
46117 Oberhausen
Website: https://bjoernkw.com/
eMail: bjoern@bjoernkw.com
Tel.: +49-151-25209060

30. References
• images
• 1: https://commons.wikimedia.org/wiki/User:Deavmi, licence: https://creativecommons.org/
licenses/by-sa/4.0/
• 6: On Distributed Communications Networks, Paul Baran, 1962
• 9: Stephen Codrington, licence: https://creativecommons.org/licenses/by/2.5/
• 27: Maersk Line, https://www.flickr.com/people/79298641@N07, licence: https://
creativecommons.org/licenses/by-sa/2.0/