- Webinar Recording: https://www.youtube.com/watch?v=elWRmHqRoww Watch this on-demand webinar to learn how to get a Hyperledger Fabric network up and running with the Hedera Consensus Service. The Hedera team walks through how to create a Hyperledger Fabric network with the IBM Blockchain Platform using HCS for ordering transactions. Developer resources mentioned in the webinar: - Official IBM Blockchain Platform tutorial: https://github.com/IBM/Create-BlockchainNetwork-IBPV20 - HCS Hyperledger Fabric plugin repo: https://github.com/hyperledger-labs/pluggable-hcs/blob/master/first-network/README.md - Hedera Getting Started tutorial: https://docs.hedera.com/guides/tutorials/getting-started-with-the-hedera-consensus-service-fabric-plugin

1. Donald Thibeau, Director of Product Mangement
donald@hedera.com
Xin Li, Senior Software Engineer
xin.li@swirlds.com

2. HEDERA
GOVERNING
COUNCIL
NETWORK
SERVICES
CRYPTOCURRENCY SMART
CONTRACTS
FILE
SERVICE
CONSENSUS
SERVICE
HASHGRAPH CONSENSUS
HEDERA MAINNET & MIRROR NODES
END USERS 3RD PARTY APPLICATIONS
LEGALGAMING LOGISTICSCOMMUNICATIONS PRIVATE DLT
MEDIAHEALTHREAL ESTATE SOCIAL CAUSESFINANCIAL
Individuals
Enterprises
Devices
Governments

3. Public vs. Private
Advantage Disadvantage
Private
• Privacy configuration
• Governance
• Centralization
• Scale
• Vendor lock in
Public
• Decentralization • Performance
• Anonymity
• Regulatory concerns

4. The Hedera Consensus Service
Hedera: Providing decentralization of a public network with privacy
and compliance controls of a private network.

5. PRIVACY
FINALITY
TRUST
AVAILABILITY
HEDERA
CONSENSUS
PRIVATE NETWORK PRIVATE NETWORK
CUSTOMIZATION
DATA ENCRYPTION
PERFORMANCE
IDENTITYMANAGEMENT
Encrypted
transaction
Transaction
timestamp
Pluggable Consensus with HCS
Hedera Consensus Service provides auditable
log of transaction for distinct tokens.
Permissioned networks now share a single
consensus engine, enabling:
• Custom data access and encryption
• Custom token definitions
• Verifiable timestamps
• Decentralized, shared service
• Finality of transaction order
• High performance
Hedera supports integrations between the
Hedera Consensus Service, Hyperledger Fabric,
and R3’s Corda

6. Hedera mainnet
Hedera mirrornet
• Message
• TopicID
• Submitting Account
Hedera
HCS Message Submission

7. Hedera mainnet
Hedera mirrornet
• Consensus Timestamp
• Sequence Number
• Running Hash
Hedera
HCS Message Response

8. A quick refresher on Hyperledger Fabric
• Fabric Network
• Peer
• Orderer
• Certificate Authority
• Chaincode
• Channel

9. Lifecycle of a transaction
1
Transaction proposed to
Fabric peer
2
Client application
broadcast transaction to
orderer
Client
Fabric peer
Fabric orderer
HCS plug-in
Consensus nodes
Mirror nodes
Hedera Hashgraph

10. Lifecycle of a transaction
3
Transaction fragmented
into messages,
associated with topicID
4
Messages submitted to
topic using HCS
Client
Fabric peer
Fabric orderer
HCS plug-in
Hedera Hashgraph
Consensus nodes
Mirror nodes

11. Lifecycle of a transaction
5
Event reaches
consensus,
receiving
consensus
timestamp and
state proof
Client
Fabric peer
Fabric orderer
HCS plug-in
Hedera Hashgraph
Consensus nodes
Mirror nodes

12. Lifecycle of a transaction
6 Notify of message order
Client
Fabric peer
Fabric orderer
HCS plug-in
Consensus nodes
Mirror nodes
Hedera Hashgraph

13. Lifecycle of a transaction
Client
Fabric peer
Fabric orderer
HCS plug-in
Consensus nodes
Mirror nodes
7
Transaction
reassembled,
put in block
8
Ordered
transactions
given to peers
9
Endorsed
responses
collected
Hedera Hashgraph

14. HCS-based Orderer
Orderer
Hedera SDK
Common
HCS Plug-in
Config handling Channel mgmt
Common txn
handling
Block cutter
AtomicBroadcast
Config
handling
Channel
mgmt
Txn handling
Consenter Chain
Broadcast transaction to orderer Deliver ordered blocks
Notify of consensus messages from
mirror node
Submit messages to mainnet