blockchain, bitcoin and smart contracts - oleg kudrenko
TRANSCRIPT
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Blockchain and Smart ContractsThe technology likely to have the greatest impact on the next few decades has arrived
Fall 2016
Kudrenko Oleg
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EXPERIENCE10 years of developing
06 years with e-Commerce
03 years with Blockchain
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THE TECHNOLOGICAL REVOLUTION
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THE TECHNOLOGICAL REVOLUTION
Mobility
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THE TECHNOLOGICAL REVOLUTION
Mobility Social Web
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THE TECHNOLOGICAL REVOLUTION
Internet of Things Mobility Social Web
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THE TECHNOLOGICAL REVOLUTION
Big DataInternet of Things Mobility Social Web
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THE TECHNOLOGICAL REVOLUTION
Big DataInternet of Things Mobility Social Web The Cloud
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THE TECHNOLOGICAL REVOLUTION
Big DataInternet of Things Mobility Social Web The Cloud
Machine Learning Drones & Robotics
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Big Data
Internet of Things
Mobility
Social Web
The Cloud
Machine Learning Drones & Robotics
BLOCKCHAIN
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THE INTERNET OFINFORMATION
Web Sites
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THE INTERNET OF INFORMATIONWeb Sites
Photos
PDFsDocs INFORMATION
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Web Sites Photos
PDFs
EmailPPT Slides
Docs
THE INTERNET OF INFORMATION
INFORMATION
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ASSETS
VotesArt
Energy
Identity
VisualArt
Film
Reputation
Aftestations
Carboncredits
Music
SocialCapital
ASSETS
MoneyIntellectual
property
Contracts
Other
Financial
Assets
Other
Swaps
Futures
Bonds
Stocks
IOUs
Premiums
Receivables
Coupons
Deeds
Loyalty
points
NEEDED:
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AN INTERNET OF VALUE
ASSETS
VotesArt
Energy
Identity
VisualArt
Film
Reputation
Aftestations
Carboncredits
Music
SocialCapital
ASSETS
MoneyIntellectual
property
Contracts
Other
Financial
Assets
Other
Swaps
Futures
Bonds
Stocks
IOUs
Premiums
Receivables
Coupons
Deeds
Loyalty
points
NEEDED:
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THE MIDDLEMAN
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THE MIDDLEMAN
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INTERNATIONAL WIRE TRANSFER
Sender Bank
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Sender Bank
INTERNATIONAL WIRE TRANSFER
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Sender Bank
INTERNATIONAL WIRE TRANSFER
Receiver Bank
CORRESPONDENT
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Sender Bank Slow Bank Receiver Bank
CORRESPONDENT
INTERNATIONAL WIRE TRANSFER
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USD EUR
CORRESPONDENT
INTERNATIONAL WIRE TRANSFER
Sender Bank Slow Bank Receiver Bank
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RETHINKINGTHE FINANCIAL SERVICES INDUSTRY9
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10^9
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AN INTERNET OF VALUE
ASSETS
VotesArt
Energy
Identity
VisualArt
Film
Reputation
Aftestations
Carboncredits
Music
SocialCapital
ASSETS
MoneyIntellectual
property
Contracts
Other
Financial
Assets
Other
Swaps
Futures
Bonds
Stocks
IOUs
Premiums
Receivables
Coupons
Deeds
Loyalty
points
NEEDED:
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WHO IS SATOSHI NAKAMOTO?
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WHAT ISMONEY?
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WHAT ISMONEY?
accumulation of funds
cost estimate
exchange (absolute liquidity)
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VOLATILITY WHAT IS
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ПОПУЛЯРНЫЕ ВОПРОСЫО БИТКОИН СРЕДИ ПОЛЬЗОВАТЕЛЕЙ
Что делает Биткоин интересным?
Является ли биткоин средством инвестирования?
Как можно купить биткоины?
Как хранить биткоины?
Насколько безопасно хранить биткоины?
Как потратить биткоины?
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ПОПУЛЯРНЫЕ ВОПРОСЫО БИТКОИН СРЕДИ ПОЛЬЗОВАТЕЛЕЙ
Что делает Биткоин интересным?
Является ли биткоин средством инвестирования?
Как можно купить биткоины?
Как хранить биткоины?
Насколько безопасно хранить биткоины?
Как потратить биткоины? FAQ
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BITCOIN & BUSINESSWhat merchant need to know to sell
products for Bitcoins
FAQ
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BLOCKCHAIN
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DECENTRALIZATION
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DECENTRALIZATION OF INFORMATION
Encyclopedia Britanica Wikipedia
CentralizedContent
DecentralizedContent
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HOW BLOCKCHAIN PROCESSBITCOIN TRANSACTIONS
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Wake up, Neo…
User Internet
ASYMERTIC ENCRYPTION
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Wake up, Neo…
User InternetPrivate Key Public Key
anyone can encryptall know message owner
ASYMERTIC ENCRYPTION
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Wake up, Neo…
User InternetPrivate Key Public Key
anyone can encryptall know message owner
ASYMERTIC ENCRYPTION
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Wake up, Neo…
User InternetPrivate Key Public Key
anyone can encryptall know message owner
can encrypt only private key owner
ASYMERTIC ENCRYPTION
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Private Key Public Key
anyone can encryptall know message owner
What is ENCRYPTED with one key Key Can be DECRYPTED with the other
What is ENCRYPTED with one key KeyCan be DECRYPTED with the other
KEY PAIR
ASYMERTIC ENCRYPTION
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Wake up, Neo…
HASH FUNCTION
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Wake up, Neo…
HASH FUNCTION
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010101010101010101010101010101001110101010101010100100001011001101101010101010000101011101001001100
Wake up, Neo…
32SNa8gkearJATeyAfTjX7ny
HASH FUNCTION
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010101010101010101010101010101001110101010101010100100001011001101101010101010000101011101001001100
32SNa8gkearJATeyAfTjX7ny
Wake up, Neo…
HASH FUNCTION
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010101010101010101010101010101001110101010101010100100001011001101101010101010000101011101001001100
32SNa8gkearJATeyAfTjX7ny
Wake up, Neo…
010101010101010101010101010101001110101010101010100100001011001101101010101010000101011101001001100
8d9029DdidbvtgOIDpv9d9d3d
Wake up. Neo…
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BUY Bob and Alice both have Bitcoin "wallets" on their computers. Alice want to buy some goods from Bob using Bitcoin.
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Wallets are provides access to multiple Bitcoin addresses.
Wallets are provides access to multiple Bitcoin addresses.
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Wallets are provides access to multiple Bitcoin addresses.
3 2 S N a 8 g k e
a r J ATe y A f T j
X 7 n y q z tW s
D 4mn b
An address is a string of letters and numbers.
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Client sign with Alice private key Bitcoin transaction which tell that Alice send some amount to Bob.
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Alice client send signed transaction to miners.
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Miners computers bundle the transactions of the past 10 minutes into a new "transaction block."
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The mining computers calculate new hash values based on a combination of the previous hash value, the new transaction block and a nonce
NonceHashvalue
NonceHashvalue
Hashvalue
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As time goes on, Alice's transfer to Bob gets buried beneath other, more recent transactions. For anyone to modify the details require redo the work of all the subsequent miners. Such a feat is nearly impossible.
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IMMUTABLE
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SMART CONTRACTS
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CONTACTING EXTERNAL SERVICES
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CONTACTING EXTERNAL SERVICES
BitcoinBlockchain
EthereumBlockchain Internet
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CONTACTING EXTERNAL SERVICES
BitcoinBlockchain
EthereumBlockchain Internet
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CONTACTING EXTERNAL SERVICES
BitcoinBlockchain
EthereumBlockchain Internet
BitcoinBlockchain
EthereumBlockchain Internet
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CONTACTING EXTERNAL SERVICES
BitcoinBlockchain
EthereumBlockchain Internet
BitcoinBlockchain
EthereumBlockchain Internet
Oraclize
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CONTACTING EXTERNAL SERVICES
BitcoinBlockchain
EthereumBlockchain Internet
Oraclize
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ENFORCING ON-CHAIN PAYMENTS
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FLIGHT DELAY INSURANCE
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FLIGHT DELAY INSURANCE
BLOCKCHAIN SMART CONTRACT
Customer Sales
Insurance rate provider
Flights datafeed
Scheduler
Deloitte
Payment processorBank
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FLIGHT DELAY INSURANCE
BLOCKCHAIN SMART CONTRACT
Customer Sales
Insurance rate provider
Flights datafeed
Scheduler
Deloitte
Payment processorBank
1.Get Insurance Rate
2. Gets insurance rate
3. Create insurance
4. Verifies insurance rate 5. Verifies flight info
6. Departure info
7. Insured case11. Signed payment approval
14. Insurance case validation
12. Insured case
8. Insured case payment
10. Signed payment approval9. Make payment
13. Flight dataFlight statistic
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POINT OF INTEREST
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MICROPAYMENTS CONCEPT
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