1 Introduction to BlockchainNabeel Amjad – PTCL 18 April, 2017

2 Bitcoin Blockchain Virtual Currencies Distributed LedgersCommon themes Distributed Ledgers Smart Contracts

3 Blockchain Contains financial transactionsReplicated across multiple systems Usually exist in peer-2-peer networks hard to change historical records Cryptography & digital signatures Read/write roles

4 Wealth growth goes down in an inefficient networkBusiness Ecosystem Networked Market Value & Wealth Networked Do not operate in Isolation Bonded through Suppliers and traders Generate Wealth and Build Value Trade flow of goods & services Transferring and owning assets Transact through Markets: Across the business network Wealth growth goes down in an inefficient network

5 Hyperledger Project Transforming the Ledger legacyToday businesses have multiple ledgers for multiple business networks in which they participate Hyperledger Project Linux Foundation: open source collaborative effort

6 Blockchain – Applications in Business

7 Blockchain – Underlying Technology for BitcoinFirst Blockchain application Peer-2-Peer network of replicated Databases BUT is not bitcoin

8 Construction Industry – Use CaseCompany’s records Supplier C’s records Bank records Auditor records Supplier A’s records Supplier B’s records Multiple companies, dependencies & systems of record Tedious to manage using standard ERP Vulnerable, expensive & inefficient

9 ? Blockchain So What is the SolutionSo what is the solution? (in center) next click – Only Blockchain 3rd click – all 3 elements with “Blockchain DNA” with headline

10 Blockchain - DNA Append-only distributed system of record shared across business network Business terms embedded in transaction database & executed with transactions Shared ledger Smart contract Ensuring appropriate visibility; transactions are secure, authenticated & verifiable Privacy Consensus All parties agree to network verified transaction So what is the solution? (in center) next click – Only Blockchain 3rd click – all 3 elements with “Blockchain DNA” with headline Broader participation, lower cost, increased efficiency

11 Construction Business – Blockchain Use CaseCompany’s records Supplier C’s records Bank records Unified Records Privacy Auditor records Supplier A’s records Supplier B’s records ONE Place Same Participants Transaction Consensus No Tampering Provenance

12 Benefits Saves time Removes cost Reduces risk Increases trustTransaction time from days to near instantaneous Overheads and cost intermediaries Tampering, fraud & cyber crime Through shared processes and recordkeeping

13 What Internet did for ITis what Blockchain will do for trusted transaction

14 Thank You