Hyperledger Fabric is presented as a customized blockchain solution for corporate use. The document discusses the speaker's background, how businesses are interested in blockchain but many use cases don't truly require it, and how Hyperledger Fabric emerged as the best solution after testing various options. Key aspects of Hyperledger Fabric are that it uses certificate-based authentication, access management, and abstracts the blockchain to allow database-like interactions with rich queries. However, it is noted that stability has been achieved but documentation and APIs still need significant improvements.

1. Hyperledger Fabric: A Custom Blockchain
Solu<on for Corporate Use
Robert Tochman-Szewc
© Robert Tochman-Szewc, 2017 1

2. Agenda
• My Background
• Businesses and the Blockchain
• Solu6ons
• How Hyperledger Fabric works
• Where is it heading?
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3. My Background
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4. My Background
• So$ware Developer
• Build Backends, Apps, Websites, Teams...
• Fullstack Developer (JS)
• Freelancer
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5. Businesses and the Blockchain
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6. Businesses and the Blockchain
Blockchain is a hot topic, many companies want to
• dip their feet in to gather experience
• show they endorse it
-> Blockchain projects for everyone!
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7. Scenarios
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8. Scenarios
Two extremes can be observed:
• Commercialy viable scenario, but blockchain use not required
• Commercially ques8onable scenario, but the blockchain is
perfect for it
The middle is only being filled gradually.
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9. Scenarios (2) - Example
Tracking the fish supply chain
• Source
• Age
• Temperature during transport
• Automa4c management of payments/discounts on ToS viola4on
• No trust in single party
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10. Solu%ons: So many op%ons...
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11. Solu%ons: So many op%ons... (Dec '17)
Solu%ons More Solu%ons
Bitcoin Ethereum/Solidity
HydraChain Hyperledger Burrow
Hyperledger Fabric Hyperledger Iroha
Hyperledger Sawtooth Mul=Chain
NEM Neo
Openchain Qtum
Quorum R3 Corda
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12. Solu%ons: So many op%ons... (2)
Criteria:
• Do we want/need a stable cost structure?
• Does it fit the requirements of your use-case? (Business Rules,
Data Model)
• Can we get the sample scenarios to work?
• Is there an easy form of deployment available? (e.g. Docker)
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13. ..and yet so few?
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14. ..and yet so few?
Turns out a*er discarding unfit solu2ons and tes2ng the others we
were le* with a single solu2on: Hyperledger Fabric
• Capable of our scenario
• Offers a key-value store with rich queries -> Database
• Actually works (in terms of sample scenarios)
• Best documented (sCll with large gaps)
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15. How it works
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16. How it works
Two op&ons: Write chaincode in Go or write Model and Business
rules in JS with Fabric Composer.
Our choice: Fabric Composer
Reasons:
• Existence of more holis1c model scenarios.
• Codebase very ac1ve and solu1on is strongly endorsed by IBM.
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17. How it works (2)
• DEMO
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18. What's inside?
• Cer%ficate-based authen%ca%on
• High-Level Access Management
• High-level blockchain abstrac%on to allow for a database-like
interac%on, including rich queries
• Configura%on-free REST server
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19. What is it not?
• Storage-efficient
• CPU-efficient
• Updateable
• Embraced by society (yet)
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20. Where is it heading?
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21. Where is it heading?
• Stability is here, you can already build working products with
Hyperledger Fabric.
• "Experimental" phase is not over, companies are s@ll figuring out
how to use the blockchain in a meaningful way.
• Most projects for corporate use are unstable or very limited and
need to mature.
• Documenta@on and API's need to improve drama@cally.
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22. Ques%ons?
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23. Thanks!
rob@rtsworks.com
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