Blockchain: More than. bitcoin

Transcription

1 Blockchain: More than. bitcoin

2 andrzej grzesik twitter://ags313 andrzejgrzesik.info

3 from

4 lives from

5 Blockchain - Revolution?

6 Revolution It changes how we interact

7 New Money

8 Money Scarce Divisible Durable Transferable Fungible

9 Money Scarce Divisible Durable Transferable Fungible

10 Money Scarce Divisible Durable Transferable Fungible

11 Money Scarce Divisible Durable Transferable Fungible

12 Money Scarce Divisible Durable Transferable Fungible (interchangeable)

13 [capitalisation] Screenshot from

14

15 Trading side High risks, potential for high reward

16 So, Bitcoin

17 What can you do with Bitcoin?

18 Mining

19

20 What can you do with Bitcoin? Besides mining and speculation

21 Bitcoin Money Distributed ledger

22 Bitcoin Money Distributed ledger Expensive

23 Ethereum, maybe?

24

25 EthereumVM

26 Blockchain Distributed ledger

27 Event sourcing

28 Event Sourcing (briefly) transfer 2000 Salary payment (500) transfer (100) transfer 100 Rent Electricity Interest

29 Event Sourcing (briefly) transfer 2000 Salary payment (500) transfer (100) transfer 100 Rent Electricity Interest

30 Event Sourcing (briefly) transfer 2000 Salary payment (500) transfer (100) transfer 100 Rent Electricity Interest Balance = 1500

31 Blockchain List<Hash<Block<List<Txn>>>>>

32 Blockchain is a distributed database

33

34 150GB Q4 17

35 start with why

36 Action Action Perception Perception Perception Processing Perception Processing Medium

37 Action Action Perception Perception Perception Processing Perception Processing Medium

38 Action Action Perception Perception Perception Processing Often protein-based Perception Processing Medium

39 Action Action Action Action Perception Perception Perception Perception Perception Processing Perception Processing Processing Processing Medium Internet

40 Action Action Action Action Perception Perception Perception Perception Perception Processing Perception Processing Processing Processing SOAP, REST, Medium Internet

41 Databases How many datastores does your organisation have?

42 What s wrong with that?

43 Duplicated data Action Action Action Action Storage costs Perception Perception Perception Perception Latency Perception Processing Perception Processing Processing Processing SOAP, REST, Double spend Double booking Medium Internet

44 Action Action Action Action Action Action Perception Perception Perception Perception Facts Perception Processing Perception Processing Processing Processing Medium Internet Medium

45 Action Action Action Action Action Action Perception Perception Perception Perception Facts Perception Processing Perception Processing Processing Processing Medium Internet Medium

46 Action Action Action Action Action Action Perception Perception Perception Perception Facts Perception Processing Perception Processing Processing Processing BLOCKCHAIN Medium Internet Medium

47 Blockchain Distributed Immutable Transparent

48 Blockchain Distributed Immutable Transparent

49 Blockchain Distributed Immutable Transparent

50 Blockchain Distributed Immutable Transparent*

51 Challenges

52

53 Challenges Secrecy

54

55 Challenges Trust

56 Challenges Multiple blockchains?

57 Use cases

58 Digital representation of assets

59 Digital ledgers

60 ICOs ICO == Initial Coin Offering

61 Smart Contracts

62 [screenshot contract]

63 [screenshot contract] Sample Ethereum code

64 Why are people so excited?

65

66 What about the JVM?

67 today, on the JVM

68 Corda features No blockchain, no mining JVM-based (Kotlin and Java) Permissioned networks Open source (github.com/corda/corda)

69 Networks

70 Networks

71 Networks

72

73

74 Arbitrary processing time

75 Want to try? corda.net

76 Summary

77 Which one is best?

78 andrzej grzesik twitter://ags313 andrzejgrzesik.info