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Maintaining Trust and Privacy of
Personal Data with Blockchains
Prof. John Domingue, Director Knowledge Media Institute,
The Open University
@johndmk
kmi.open.ac.uk
blockchain.open.ac.uk
“We demonstrated that the Web had failed instead
of served humanity, as it was supposed to have
done, and failed in many places,” he told me. The
increasing centralization of the Web, he says, has
“ended up producing—with no deliberate action of
the people who designed the platform—a large-
scale emergent phenomenon which is anti-
human.”
I’m not a dog
https://www.theguardian.com/commentisfree/2018/mar/28/all-the-data-facebook-google-has-on-you-privacy
• 5.5 GB
• Everywhere you’ve
been
• Everything you’ve
ever searched (and
deleted)
• Advertisement profile
• All the apps you use
• All your YouTube
history
2 Billion Unbanked2 Billion UnbankedThin Files and the Data Poor
2 Billion Unbanked2 Billion Unbanked2 Billion Unbanked
2 Billion Unbanked2 Billion UnbankedWindrush Scandal
http://www.theweek.co.uk/92944/who-are-the-windrush-generation-and-why-are-they-facing-deportation
Ledgers
Ledger
Blockchain = an Immutable Linked List
Hash
File
Hash
Blockchain = an Immutable Linked List
Hash
File
Immutable Blocks
Blockchain = an Immutable Linked List
Hash
File
Peer to Peer
2 Billion Unbanked
https://rubenverborgh.github.io/Solid-DeSemWeb-2018/
Solid
2 Billion Unbanked2 Billion UnbankedSelf Sovereignty
2 Billion Unbanked2 Billion UnbankedLinkChains
SOLID Personal
Data Pod
Distributed data storage
Web/Mobile
Application or Client
Private data
soley under
user control
Public and private data
Decentralised ledger and
‘global computer’
Public and
private data
storage and
access
Web/Mobile
Application or Client
Private data
solely under
user control
Public and private data
Decentralized ledger and
‘global computer’
2 Billion Unbanked2 Billion Unbanked
LinkChains
Learning Record IPFS IPFS
IPFSIPFS
Solid Personal
Data Pod
IPFS distributed data
storage
Token Metadata incl.
Student Solid URLs
Signed token metadata URL
and badge issuing contracts
Storing and
retrieving
token
metadata
Institute of Coding
blockchain.open.ac.uk

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A maintaining trust and privacy of personal data with blockchains v 1.0

  • 1. Maintaining Trust and Privacy of Personal Data with Blockchains Prof. John Domingue, Director Knowledge Media Institute, The Open University @johndmk kmi.open.ac.uk blockchain.open.ac.uk
  • 2. “We demonstrated that the Web had failed instead of served humanity, as it was supposed to have done, and failed in many places,” he told me. The increasing centralization of the Web, he says, has “ended up producing—with no deliberate action of the people who designed the platform—a large- scale emergent phenomenon which is anti- human.”
  • 3. I’m not a dog https://www.theguardian.com/commentisfree/2018/mar/28/all-the-data-facebook-google-has-on-you-privacy • 5.5 GB • Everywhere you’ve been • Everything you’ve ever searched (and deleted) • Advertisement profile • All the apps you use • All your YouTube history
  • 4. 2 Billion Unbanked2 Billion UnbankedThin Files and the Data Poor
  • 5. 2 Billion Unbanked2 Billion Unbanked2 Billion Unbanked
  • 6. 2 Billion Unbanked2 Billion UnbankedWindrush Scandal http://www.theweek.co.uk/92944/who-are-the-windrush-generation-and-why-are-they-facing-deportation
  • 8. Blockchain = an Immutable Linked List Hash File Hash
  • 9. Blockchain = an Immutable Linked List Hash File Immutable Blocks
  • 10. Blockchain = an Immutable Linked List Hash File Peer to Peer
  • 12. 2 Billion Unbanked2 Billion UnbankedSelf Sovereignty
  • 13. 2 Billion Unbanked2 Billion UnbankedLinkChains SOLID Personal Data Pod Distributed data storage Web/Mobile Application or Client Private data soley under user control Public and private data Decentralised ledger and ‘global computer’ Public and private data storage and access Web/Mobile Application or Client Private data solely under user control Public and private data Decentralized ledger and ‘global computer’
  • 14. 2 Billion Unbanked2 Billion Unbanked LinkChains Learning Record IPFS IPFS IPFSIPFS Solid Personal Data Pod IPFS distributed data storage Token Metadata incl. Student Solid URLs Signed token metadata URL and badge issuing contracts Storing and retrieving token metadata