blockchain v 2 (1)
TRANSCRIPT
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IntroducingBlockchain
Asharedledgertechnologyallowinganypar3cipantinthebusiness
networktoseeTHEsystemofrecord
(ledger)
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Problem-Difficulttomonitorassetownershipandtransfersinatrusted
businessnetwork
Inefficient,expensive,vulnerable
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Solu>on–apermissioned,replicated,sharedledger
Consensus,provenance,immutability,finality
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BlockchainunderpinsBitcoin...• isunregulated,censorship-resistantshadowcurrency• Blockchainensures“cashlike”coinpassing– unique,– immutable,– Final
• BitcoinisthefirstBlockchainapplica>on– Blockchainisnot
• Digitalcurrenciesdifferentfromcyptocurrency
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BlockchainforBusiness
SharedLedger
SmartContract
Privacy Valida>on
Append-onlydistributedsystemofrecordsharedacrossbusinessnetwork
�Ensuringappropriatevisibility;transac>onsaresecure,authen>cated&
verifiable
Businesstermsembeddedintransac>ondatabase&executedwithtransac>ons
Allpar>esagreetonetworkverifiedtransac>on
Broaderpar>cipa>on,lowercost,increasedefficiency
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SharedLedger
• Recordsalltransac>onsacrossbusinessnetwork
• Sharedbetweenpar>cipants
• Par>cipantshaveowncopythroughreplica>on
• Permissioned,sopar>cipantsseeonlyappropriatetransac>ons
• THEsharedsystemofrecord
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SmartContract• Businessrulesimpliedbythe
contract..
• ..embeddedintheBlockchain&• executedwiththetransac>on• Verifiable,signed• Encodedinprogramminglanguage
• Example:– Definescontractualcondi>onsunderwhichcorporateBondtransferoccurs
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Privacy
• Ledgerisshared,butpar>cipantsrequireprivacy
• Par>cipantsneed:
– Transac>onstobeprivate– Iden>tynotlinkedtoatransac>on
• Transac>onsneedtobeauthen>cated
• Cryptographycentraltotheseprocesses
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Valida:on• Transac>onverifica>on&commitment
• Whenpar>cipantsareanonymous
– Commitmentisexpensive
– Bitcoincryptographicminingprovidesverifica>onforanonymouspar>cipantsbutatsignificantcomputecost(proofofwork)
• Whenpar>cipantsareknown&trusted
– Commitmentpossibleatlowcost
• Mul>plealterna>ves
– proofofstakewherefraudulenttransac>onscostvalidators(e.g.transac>onbond)
– mul>-signature(e.g.3outof5par>cipantsagree)
• IndustrialBlockchainneeds“pluggable”consensus
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BlockchainBenefitsReduce costs and complexity
Improve discoverability
Trusted recordkeeping
Shared trusted processes
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Blockchain–notforall...NEGATIVEIndicators1.Needhighperformance(millisecond)transac>ons
2.Smallorganiza>on(nobusinessnetwork)3.Lookingforadatabasereplacement4.Lookingforamessagingsolu>on5.Lookingfortransac>onprocessingreplacement
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Pa@ernsforCustomerAdop:on(1) INTERNAL LEDGER • Ledger for internal reporting, audit and compliance, • Consistent view of key business assets, • Provenance, immutability & finality more important than consensus. • Access to auditor and regulator
(2) CONSORTIUM SHARED LEDGER • Created by a small set of participants • share reference data between themselves and consumers. • Consistent real-time view of key information
(3) INFORMATION HUB • A ledger set up in a single organization • Sharing of information between participants • (e.g. voting, dividend notification) • Assets have information, not financial value, • Require provenance, immutability & finality.
(4) HIGH VALUE MARKET • Ledger for the transfer of high financial value
assets • between many participants in a market. • Requires all enterprise features of Blockchain
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UseCases
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UseCase–Healthcare
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UseCase–Le@erofCreditWhat? • • Bank handling letters of credit (LOC) wants to offer them to a wider range of clients including startups • • Currently constrained by costs & the time to execute • How? • • Blockchain provides common ledger for letters of credit • • Allows bank and counter-parties to have the same validated record of transaction and fulfillment • Benefits • • Increased trust• Increase speed of execution (less than 1 day) • Vastly reduced cost
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UseCase–CorporateDebt(orBond)
What? • Bank holding a corporate debt would like to pay vendors quickly for transactions validated by the client allow the corporate client to see the payment is made provide government with oversight of the process How? • Blockchain provides a common ledger for recording the corporate debt / bond, • available to bank, corporate client, vendors & government. Benefits• Speeds up vendor payments bigger net discounts• Eliminates risk and accelerates decision making • Owning bank can spread the cost across each market.
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UseCase–SmartRefrigerator
What? • Value of connected smart devices limited by ability to interact with business systems How? • Blockchain to manage automated interactions with the external world • ordering and paying for food to arranging for its own software upgrades and tracking its warranty. Benefits
1. business value from connected technology 2. efficiencies in network and supply chains. 3. status transparent to all network members
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Blockchain:DecentralizedDatabase–FirstuseisBitcoin