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Blockchain

A Distributed Database And Public Ledger

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Blockchain

  1. 1. - Björn Wilmsmann - Blockchain A Distributed Database And Public Ledger
  2. 2. How can we create transparency and build trust?
  3. 3. First, a little bit of history
  4. 4. Satoshi Nakamoto
  5. 5. On Distributed Communications Networks, Paul Baran, 1962
  6. 6. So, how does the Blockchain work?
  7. 7. 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
  8. 8. Mining
  9. 9. Public, private and hybrid chains
  10. 10. Benefits
  11. 11. Decentralised
  12. 12. Immutable
  13. 13. Auditable
  14. 14. Cost efficient
  15. 15. Openness
  16. 16. Guaranteed continuity
  17. 17. Decentralised trust. Trustless transactions
  18. 18. Applications
  19. 19. Digital currency
  20. 20. Media copyright
  21. 21. Voting
  22. 22. eCommerce
  23. 23. Proof of identity
  24. 24. Proof of ownership
  25. 25. Supply chain management
  26. 26. Shipping processes
  27. 27. Vendor compliance management
  28. 28. Björn Wilmsmann
 Stefan-George-Str. 15a
 46117 Oberhausen Website: https://bjoernkw.com/ 
 eMail: bjoern@bjoernkw.com
 Tel.: +49-151-25209060
  29. 29. 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/

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