Verfügbarkeit: Blockchain applications

Blockchain applications: a hands-on approach

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Bibliographische Detailangaben
Hauptverfasser:	Bahga, Arshdeep (VerfasserIn), Madisetti, Vijay K. (VerfasserIn)
Format:	Buch
Sprache:	English
Veröffentlicht:	[Erscheinungsort nicht ermittelbar] [Verlag nicht ermittelbar] [2017]
Online-Zugang:	Inhaltsverzeichnis
Beschreibung:	380 Seiten Illustrationen, Diagramme
ISBN:	9780996025560 0996025561

Internformat

MARC


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Datensatz im Suchindex

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adam_text	Contents I BLOCKCHAIN TECHNOLOGY 17 1 Blockchain Concepts ..................................................19 1.1 Blockchain 20 1.1.1 Blockchain Evolution ..................................................21 1.1.2 Blockchain Structure ..................................................22 1.1.3 Blockchain Characteristics ............................................22 1.2 Blockchain Application Example: Escrow 23 1.3 Blockchain Stack 35 1.3.1 Decentralized Computation Platform - Ethereum .........................37 1.3.2 Decentralized Storage Platform - Swarm.................................39 1.3.3 Decentralized Messaging Platform - Whisper.............................39 1.3.4 Smart Contracts........................................................39 1.3.5 Decentralized Applications (Dapps).....................................40 1.3.6 Tools Interfaces ....................................................41 1.4 From Web 2.0 to the Next Generation Decentralized Web 42 1.5 Domain Specific Blockchain Applications 44 1.5.1 FinTech................................................................44 1.5.2 Internet of Things.....................................................46 1.5.3 Industrial Manufacturing ............................................48 1.5.4 Registry of Assets Inventory ........................................52 1.5.5 Energy ................................................................52 1.5.6 Supply Chain Logistics ..............................................52 1.5.7 Records Identities..............................................53 1.5.8 Healthcare.........................................................55 1.6 Blockchain Benefits Challenges 57 2 Blockchain Application Templates .................................61 2.1 Blockchain Application Components 62 2.2 Design Methodology for Blockchain Applications 63 2.3 Blockchain Application Templates 67 2.3.1 Many-to-One.......................................................67 2.3.2 Many-to-One for loT Applications .................................68 2.3.3 Many-to-Many or Peer-to-Peer .....................................68 2.3.4 One-to-One for Financial Applications.............................68 II BLOCKCHAIN COMPONENTS APPLICATIONS 71 3 Setting up Ethereum Development Tools ............................73 3.1 Ethereum Clients 74 3.1.1 Go-Ethereum Client (geth).........................................74 3.1.2 Python Ethereum Client (pyethapp).................................79 3.2 Ethereum Languages 81 3.2.1 Solidity .........................................................81 3.3 TestRPC 82 3.4 Mist Ethereum Wallet 83 3.5 MetaMask 85 3.6 Web3 JavaScript API 88 3.7 Truffle 92 4 Ethereum Accounts ................................................97 4.1 Ethereum Accounts 98 4.1.1 Externally Owned Account (EOAs) ..................................98 4.1.2 Contract Account..................................................98 4.2 Keypairs 98 4.3 Working with EOA Accounts 100 4.3.1 Creating Account.................................................100 4.3.2 Listing Accounts.................................................101 4.3.3 Updating Accounts................................................102 4.3.4 Checking Balance ................................................103 4.3.5 Account Transactions.............................................103 106 106 113 114 117 118 118 118 120 127 129 130 131 133 135 137 138 146 146 151 155 159 164 164 166 169 170 171 173 174 177 179 183 190 190 197 204 210 222 239 Working with Contract Accounts Compiling Deploying Contract.................................... Interacting with Contracts........................................ Instantiating or Watching a Contract ............................. Smart Contracts................................................... Smart Contract Structure of a Contract Setting up and Interacting with a Contract using Geth Client Compiling Deploying a Contract.................................. Transactions and Calls............................................ Interacting with a Contract ...................................... Gas............................................................... Logs.............................................................. Events............................................................ Setting up and Interacting with a Contract using Mist Wallet Compiling Deploying a Contract.................................. Interacting with a Contract ...................................... Smart Contract Examples Event Registration Contract ...................................... Voting Contract .................................................. Name Registry Contract............................................ loT Smart Switch Contract ........................................ Smart Contract Patterns Conditions-Effects-Interaction.................................... Withdrawal ....................................................... Access Restriction................................................ Mortal............................................................ Automatic Expiration ............................................. Rejector ......................................................... Circuit Breaker................................................... Allow Once per Account............................................ Decentralized Applications (Dapps)................................ Implementing Dapps Case Studies Crowdfunding ..................................................... Event Registration................................................ Document Verification ............................................ Call Option ...................................................... Interest Rate Swap ............................................... Industrial loT - Machine Maintenance ............................. 6.2.7 Solar Charging Stations...............................................248 7 Mining .............................................................. 277 7.1 Consensus on Blockchain Network 278 7.2 Mining 278 7.2.1 Stage-1 : Determine Uncles ...........................................278 7.2.2 Stage-2: Determine and Process Transactions...........................278 7.2.3 Stage-3: Apply Mining Rewards ........................................285 7.2.4 Stage-4: Compute Mining Proof-of-Work.................................286 7.3 Block Validation 291 7.4 Setting up Mining Node 293 7.5 State Storage in Ethereum 294 7.5.1 World State...........................................................294 7.5.2 Transactions List ....................................................294 7.5.3 Transaction Receipts .................................................294 7.5.4 Modified Merkle Patricia Tree ........................................294 8 Whisper.............................................................. 299 8.1 Whisper Protocol 300 8.1.1 Whisper Envelope and Message..........................................300 8.1.2 Configurable Privacy and Efficiency ..................................301 8.1.3 Whisper Communication Patterns........................................301 8.1.4 Whisper Wire Protocol.................................................303 8.1.5 Posting a Message.....................................................303 8.1.6 Topics, Abridged Topics Bloomed Topics .............................304 8.2 Whisper Routing Approaches 306 8.2.1 Passive Routing - Peer Steering.......................................306 8.2.2 Active Routing - Topic Filtering .....................................306 8.3 Whisper API 307 8.3.1 Newldentity...........................................................307 8.3.2 Hasldentity ..........................................................307 8.3.3 Post .................................................................307 8.3.4 Filter................................................................308 8.3.5 Working with Whisper..................................................308 8.4 Case Study: Smart Switch Dapp 310 9 Swarm ............................................................... 323 9.1 Swarm Architecture and Concepts 324 9.1.1 Swarm Nodes...........................................................324 9.1.2 Storage Layer ........................................................324 9.1.3 Network Layer.........................................................328 9.2 Incentive Mechanisms in Swarm 330 9.2.1 SWAP.......................................................330 9.2.2 SWEAR......................................................332 9.2.3 SWINDLE....................................................332 9.3 Swarm Setup 332 9.4 Working with Swarm 333 9.5 Case Study: Stock Photos Dapp 337 III ADVANCED TOPICS 349 10 Advanced Topics on Blockchain..............................351 10.1 Double-Spending Problem 352 10.2 Byzantine Fault Tolerance 352 10.3 Proof-of-Work vs Proof-of-Stake 353 10.4 Consistency, Availability Partition Tolerance (CAP) 354 10.5 Turing Completeness 355 10.6 Greedy Heaviest-Observed Sub-Tree (GHOST) 355 10.7 Sybil Attack 357 10.8 Mining Pools and Centralization 357 10.9 Smart Contracts Vulnerabilities 358 10.10 Blockchain Scalability 358 Appendix-A - Solidity Language Tutorial ...................371 Bibliography ............................................. 375 Index 377
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author	Bahga, Arshdeep Madisetti, Vijay K.
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spelling	Bahga, Arshdeep (DE-588)107489197X aut Blockchain applications a hands-on approach Arshdeep Bahga, Vijay Madisetti [Erscheinungsort nicht ermittelbar] [Verlag nicht ermittelbar] [2017] © 2017 380 Seiten Illustrationen, Diagramme txt rdacontent n rdamedia nc rdacarrier Madisetti, Vijay K. aut Digitalisierung UB Bamberg - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029720566&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis
spellingShingle	Bahga, Arshdeep Madisetti, Vijay K. Blockchain applications a hands-on approach
title	Blockchain applications a hands-on approach
title_auth	Blockchain applications a hands-on approach
title_exact_search	Blockchain applications a hands-on approach
title_full	Blockchain applications a hands-on approach Arshdeep Bahga, Vijay Madisetti
title_fullStr	Blockchain applications a hands-on approach Arshdeep Bahga, Vijay Madisetti
title_full_unstemmed	Blockchain applications a hands-on approach Arshdeep Bahga, Vijay Madisetti
title_short	Blockchain applications
title_sort	blockchain applications a hands on approach
title_sub	a hands-on approach
url	http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029720566&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
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