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The Power of the Memo Field | Hedera18

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YouTube Video
https://youtu.be/lag3G5rRWWI

Speaker
Ken Anderson | Chief Developer Advocate | Hedera Hashgraph

Published in: Software
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The Power of the Memo Field | Hedera18

  1. 1. Ken Anderson Chief Developer Advocate
  2. 2. The Power of the Memo Field
  3. 3. What is all this “distributed
 ledger technology” stuff about?
  4. 4. Storage?
  5. 5. Compute?
  6. 6. Trust
  7. 7. How do I get trust with Hedera?
  8. 8. Transaction 156 Option 1: Ask around
  9. 9. getReceipt Receipt getReceipt Receipt Option 1: Ask around
  10. 10. Transaction + createRecord Option 2: State proofs
  11. 11. Option 2: State proofs
  12. 12. Option 2: State proofs
  13. 13. Option 2: State proofs
  14. 14. getRecord Record + State Proof Option 2: State proofs
  15. 15. Option 3: Ask yourself
  16. 16. New concept break…
  17. 17. Mirror networks
  18. 18. 166 M M M U U M M M MM M M M M M M M M U U U U Hedera Network (Create Events)
  19. 19. Transaction Option 3: Ask yourself
  20. 20. THE TRANSACTION Transaction ID (Account ID + Timestamp) Transaction Fee Valid Duration Record: Bool Memo Body Node ID
  21. 21. THE TRANSACTION Transaction ID (Account ID + Timestamp) Transaction Fee Valid Duration Record: Bool Memo Body Node ID
  22. 22. THE TRANSACTION Transaction ID (Account ID + Timestamp) Transaction Fee Node ID Valid Duration Record: Bool Memo Body (100 Bytes) • SHA384 Hash • Small text message • Small encrypted message
  23. 23. LET’S GET CREATIVE Micropayments Extremely fast and cheap, but now I can include some logic in the transaction if I know the interested party hosts a Mirror node.
  24. 24. LET’S GET CREATIVE Micropayments Extremely fast and cheap, but now I can include some logic in the transaction if I know the interested party hosts a Mirror node. Supply chain Every party in the supply chain hosts a Mirror node. At every hand-off in the supply chain process, the two parties sign and transmit a hash of the process step as a very small cryptocurrency transaction and every Mirror node host now becomes a witness of that hand-off.
  25. 25. LET’S GET CREATIVE Micropayments Extremely fast and cheap, but now I can include some logic in the transaction if I know the interested party hosts a Mirror node. Supply chain Every party in the supply chain hosts a Mirror node. At every hand-off in the supply chain process, the two parties sign and transmit a hash of the process step as a very small cryptocurrency transaction and every Mirror node host now becomes a witness of that hand-off. Telecom Each telco hosts a Mirror node. Reporting roaming
 and remitting payment for usage can be near-real time.
  26. 26. What future will you build?

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