Blockchain for business

James Taylor
jamest@uk.ibm.com
@jtonline

Quick links

such crypto,

so coin

wow

Blockchain for business
Vehicle lifecycle demo
Hyperledger projects
Q&A

Bonus: online tutorial

Business networks

Customers
Suppliers
Banks
Partners
etc.

Geographic and regulatory boundaries

Assets

Tangible
e.g. car
Intangible
e.g. personal lease plan

Ledgers

Ledgers!

https://congacomic.tumblr.com

Business terms executed with transactions
Append-only distributed system of record
Verifiable audit trail
Privacy and confidentiality

Vehicle Lifecycle Demo

Alex

Agency for Vehicle Standards

Paul

Buyer/Owner

Customer mobile app

Debbie

Vehicle & Drivers Authority (VDA)

VDA dashboard

Tommen

Insurer

Prince Insurance dashboard

Mike

Arium Logistics

Arium manufacture dashboard

Vada

Police

'The' blockchain?

Hyperledger Fabric

Shared, replicated ledger
Smart contracts
Consensus
Immutability
Confidentiality

Reflect business processes by specifying who endorses transactions
Modular architecture and flexible hosting options

Starring

Hyperledger Composer

Extensive, familiar, and open development toolset

Model business networks in domain specific language
Write Javascript transaction processor functions
Test!
Expose via APIs
Generate apps


							asset Vehicle identified by vin {
								o String vin
								o VehicleDetails vehicleDetails
								o VehicleStatus vehicleStatus
								--> Person owner optional
								o String numberPlate optional
							}


							transaction TransferVehicle {
								--> Vehicle vehicle
								--> Person seller
								--> Person buyer
								o String specialNotes optional
							}


							/**
							 * Transfer a vehicle to another owner
							 * @param {org.example.TransferVehicle} transferVehicle - the TransferVehicle transaction
							 * @transaction
							 */
							function transferVehicle(transferVehicle) {
								var currentParticipant = getCurrentParticipant();
								
								var vehicle = transferVehicle.vehicle;						
								var seller = transferVehicle.seller;
								var buyer = transferVehicle.buyer;

								// ...
				
								vehicle.owner = buyer;
												
								return getAssetRegistry('org.example.Vehicle')
									.then(function(assetRegistry) {
										return assetRegistry.update(vehicle);
									});
							}


							rule TransferVehicleRule {
								description: "Owner can transfer vehicle"
								participant(p): "org.example.Person"
								operation: READ, CREATE, UPDATE
								resource(v): "org.example.Vehicle"
								transaction(tx): "org.example.TransferVehicle"
								condition: (v.owner.getIdentifier() == p.getIdentifier())
								action: ALLOW
							}