Technology Update Blockchain. Presentatie Oskar van Deventer

INTRODUCTION BLOCKCHAIN TECHNOLOGY iMMovator Technology Update | Hilversum, 7 December 2016 | M. Oskar van Deventer

BLOCKCHAIN RAISES MANY QUESTIONS*

What is this "blockchain" stuff that everybody is talking about? Concrete examples of use, financial, voting, other Who guarantees the correct operation and security of the system? Legal aspects, risks, uncontrollability, opposition by "middle man"

What are blockchain applications for media and journalism? Video & content distribution, VoD, live streaming, … Impact on copyright and digital rights?

Make copyright organisations redundant? Where do I start with my blockchain use case?

Which parties or suppliers should I contact?

07 December 2016 Introduction Blockchain Technology

*Thank you all for your questions, and to Mir for collecting them

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CONTENTS

Technology: a blockchain is like a computer Ecosystem: a blockchain is like a party


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A BLOCKCHAIN IS LIKE A COMPUTER


Real-world computer

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Blockchain computer

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Real-world computer

Real-world computer

Real-world computer

Consensus algorithm achieves consensus about the state of a

blockchain computer


blockchain

Cryptographically linked in a chain-like fashion (using hash functions)

Collection of modifications of the ‘shared truth’ *. * e.g. a shared transaction ledger or a shared virtual-computer state

… Prev: H( ) Transactions: H( ) …



Block header

Block content (transactions)

PRIVATE/PUBLIC, PERMISSIONED/UNPERMISIONED


https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/492972/gs-16-1-distributed-ledger-technology.pdf







BLOCKCHAIN FEATURES & CHALLENGES


Consensus Speed

Privacy

Security

Sustainable

Features Challenges

Validity

Uniqueness

Immutability

Authentication Cost

A blockchain computer is

Highly reliable

But also … Slow Memory limited Expensive

http://r3cev.com/blog/2016/4/4/introducing-r3-corda-a-distributed-ledger-designed-for-financial-services

A BLOCKCHAIN IS LIKE A PARTY

Somebody has to take the initiative Invite friends to help you with the organisation

Make decisions together Who arranges what? How are things paid? Outsource food or location? Whom to invite? Open, closed? How do we decide on things?

Execute the plan and start the party Invitations, publicity, changes …more work


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EXAMPLE USE CASE: PAY PER CONTENT ITEM

More and more people create content items independently Professional, semi-professional, amateur, … Video, blog, column, article, photo, app, …

Much money and power goes to the "middle man" Broadcasters, VoD services, magazines, newspapers, websites, …

"Could we have a marketplace where independents could sell their content directly to consumers?" "How do we prevent that our new marketplace turns into an expensive and powerful middle man"


http://www.google.nl/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwiultfEq9DQAhXBlxoKHUuxDfMQjRwIBw&url=http://balkan3f.com/videos/attachment/video-icon-crop/&bvm=bv.139782543,d.ZGg&psig=AFQjCNFzduqazowSxsMSn1S2_wmoC9rhIQ&ust=1480590477410223

http://www.google.nl/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwiQ74ifq9DQAhUInRoKHalhDAQQjRwIBw&url=http://www.flaticon.com/free-icon/shopping-cart_2772&bvm=bv.139782543,d.ZGg&psig=AFQjCNFVvIjIDPDpzx2GkXtUh3bHTgffhw&ust=1480590407225522

OK. LET'S START THE PARTY PLANNING

Who shall I involve in planning my "pay-per-content-item" party? What will our system look like to users, mock-ups, proof-of-concept? How do we decide on the functionality of the system? Governance? Who invests in what aspect of the system? Business models? Make, buy, open source? What will be our legal status? (Note: a cartel on a blockchain is still a cartel) On what (blockchain?) infrastructure will we run our system? (Our own? A third-party one?) PoC pilot alpha beta operational … … more work


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THANK YOU FOR YOUR ATTENTION

Technology Update Blockchain. Presentatie Oskar van Deventer

Technology

Transcript of Technology Update Blockchain. Presentatie Oskar van Deventer