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APPLYING BLOCKCHAIN & CRYPTOGRAPHY 14 th HKEC Symposium on Community Engagement 2019 Medical Social Collaboration 29 June 2019
APPLYING BLOCKCHAIN &
CRYPTOGRAPHY14th HKEC Symposium on Community Engagement 2019
Medical Social Collaboration29 June 2019
• data insolation• data integrity• data security• data privacy
© 2016-2019 Hong Kong Blockchain Society for the International Blockchain Olympiad. All rights reserved. 2
PROBLEM
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MERKLE TREES IN BLOCKCHAIN
© 2016-2019 Hong Kong Blockchain Society for the International Blockchain Olympiad. All rights reserved.
5
BLOCKCHAIN IS A “MAGIC” LEDGER
Each line is
”magically”
tamper-proof
to be valid
Each page is
“magically”
linked to the
previous
page
Only valid
lines can be
on the page
© 2016-2019 Hong Kong Blockchain Society for the
International Blockchain Olympiad. All rights reserved.
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“MAGIC” DISTRIBUTED LEDGER
Many, many “people” have a copy of this “magic” ledger
”People” synchronise their
ledgers “magically” and conspire
against cheaters
The more “people” there are, the more trustworthy the ledger is
”People” discuss and agree which pages are valid or not
© 2016-2019 Hong Kong Blockchain Society for the International Blockchain Olympiad. All rights reserved.
BRIEF OVERVIEW OF BLOCKCHAIN
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Shared ContractCryptographyShared Ledger Consensus
Ensuring secure,
authenticated,
and verifiable
transactions
Business terms
embedded in
transaction
database &
executed with
transactions
All parties agree
to network-
verified
transaction
Append-only
system of record
shared across a
(business)
network
Broader participation, lower cost, increased efficiency and transparency
© 2016-2019 Hong Kong Blockchain Society for the
International Blockchain Olympiad. All rights reserved.
• secure data sharing• auditable data sharing• uncensored and unalterable• BUT not private
© 2016-2019 Hong Kong Blockchain Society for the International Blockchain Olympiad. All rights reserved. 8
WHY IS BLOCKCHAIN IMPORTANT?
• GDPR style regulations• data minimalization• privacy by design• Blockchain doesn't work withoutCryptography
© 2016-2019 Hong Kong Blockchain Society for the International Blockchain Olympiad. All rights reserved. 9
WHY IS CRYPTOGRAPHY IMPORTANT?
(BLOCKCHAIN + CRYPTOGRAPHY)
↓
(PRIVACY + IDENTITY)
© 2016-2019 Hong Kong Blockchain Society for the International Blockchain Olympiad. All rights reserved. 10
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M E D I C A L C L A I M S
VEDA IN
VEDA OUT
ANY CLAIM PROCESS
DOCTOR NETWORK & BOOKING
CLAIMS NETWORK
Mediflow can cater to work with any claim processes specified for your all insurer’s business requirements. We will provide necessary APIs for
integrations with third party systems. HOSPITAL CMS
P E R S O N A L I N F O R M A T I O N T R A N S M I S S I O N
2. ISSUEGenerate and deliver a money credential (e.g. owning a bank account or credit card) in accordance with some predefined schema
5. VERIFYValidate authenticity of issuer and holder and then consume data
1. EXAMINE Perform required vetting, due diligence, and other tasks needed to establish confidence in making an attestation about an identity/credential trait
CreditCard
Portable Credentials In A Digital Wallet
Blockchain Registry
4. USEPatient presents one or more credentials (e.g. owning a policy, pre-approval amount) to a clinic / hospital or lab
3. HOLDPatient holds credentials in a digital wallet
Bank(Issuer)
Hospitals (Inspector)
Patient(Holder)
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BankAccount
DOCTOR NETWORK
M E D I F L O W O V E R V I E W
B OL KC HC IA N
CLAIMS NETWORK
PATIENT
DOCTOR
INSURER
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HOSPITALS
CLINICS
Doctor joins network
Policy holder requires medical service
Finds service provider via doctor network & schedules appointment
In-Patient
Hospital Discharge: Patient receives
medical service and is discharged without paying
Hospital staff submitsInsurance claim
Insurer reviewsInsurance claims
Insurer approves/declines insurance claim according to
business rules
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0
Hospital Check-in: With consent of patient, insurance/pre-approval credential are passed from patient’s mobile app to hospital CMS
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ImmutableRecording
ImmutableRecording
BANK
Bank sends claim settlement to medical service providers
Patient settles the claim short fall to service
providers
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83
Patient get diagnosis & clinic gets pre-approval and out patient claim from insurer
Patient admitted to
hospital
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Clinic Check-in: With consent of patient, insurance credential are passed from mobile app to clinic CMS
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© 2016-2019 Hong Kong Blockchain Society for the International Blockchain Olympiad. All rights reserved. 14
KEEP IN [email protected]
© 2016-2019 Hong Kong Blockchain Society for the International Blockchain Olympiad. All rights reserved. 15
