Dr Robert Learney (@robertlearney)Associate Director of Imperial’s Cryptocurrency Research Centre

Rachel Dunscombe (@ukpenguin)CIO, Salford Royal NHS Foundation Trust

@htw_uk www.healthtechwomen.co.uk #HTW16 #expo16nhs

Database

Database

Records

Database

AccessControl

Records

Database

J

J

J J

J

J J

J

J

J

L

LL

L

L

LL

L

LL

L

AccessControl

Bob £1

John £5

Bob £1

John £5

Bob £1

John £5

Bob £1John £5

So Far…

• A network of– Distributed, redundant copies– Continually synchronising– Access control to the database– Encryption of the actual data

Records

21 3 54

1 3 54

Deleted

1 3 53

Deleted Edited

21 3 54

21 3 54

21 3 54

21 3 54

25

4

25

254

25

254

25

25

19

194

25

25

19

194

25

25

19

194

25

25

19

19

3

3

78

78

12

4

The Final Mixture

1980s

1980s

1980s 1970s

1980s 1970s

1980s 1970s

1400s

1980s 1970s

1400s

The Magic Ingredient…

1980s 1970s

1400s

1990s

The Magic Ingredient…

Proof of Work

Proof of Work

21 3 54

21 3 54

4*

4*

5*4*

5*4*

65*4*

BlockchainTechnology

Summary

• Synchronised, distributed database– 100% uptime

• Multi-level access control and encryption– Public yet privacy preserving

• Irreversible time-stamping– Uncensorable– Fully auditable

So standing in the service …..

What Next?

• Empowering Citizens• Ubiquitous Layer of Exchanging Trust

– Speak the protocol? Come and interact!• Untamperable Transparent Data• Better Resource Sharing

Non-Financial Uses

• Aid Distribution• EverLedger Diamond Tracking• Notarisation• Verifying Academic Qualifications• Managing Distributed Co-Ops• Oracle Services

Pitfalls & Problems

• The Hype Cycle• Scalability

– PoW vs. PoS– Cryptography

• Organisational Inertia• Vulnerable Adults & Children

Get in touch…

@htw_uk

meetup.com/HealthTechWomenUK/

healthtechwomen.co.uk

tinyurl.com/fb-htw

tinyurl.com/lki-htwuk