Chainlink Hackathon: Technical Workhop

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TinaBregovi

Encode Club

Technology

What is Chainlink?
@rgottleber
richard.gottleber@chainlinklabs.com

What is a Smart Contract?
Why are they important?
The Purpose Of Smart Contracts

The Solution to the Smart Contract
Connectivity Problem

Centralized Oracles are a Point of Failure
Data
Sources
Centralized
Node
Decentralized
Computation
1 node Thousands of nodes

Centralized Oracles are a Point of Failure
1 node Thousands of nodes
Data
Sources
Centralized
Node
Decentralized
Computation

Decentralization
Full replicas run by independent node
operators.
Focused on data validation and
consensus.
Node Operators are security reviewed,
can provide a proven performance
history.
A Decentralized Oracle Network

Hybrid Smart Contracts Combine
On-chain & Off-chain Systems

What Does Chainlink Offer?
Data Feeds
VRF
Keepers

Data Feeds
Secure and reliable access to real
world data

Powering over $20 billion in the
DeFi world

Price Data
Enabling DeFi to Reinvent Financial Systems

Securing randomness for your
applications
Chainlink VRF

Decentralized event-driven
execution
Chainlink Keepers

Goals
● Leverage the Chainlink Docs
● Build a Smart Contract using
data feeds
● Deploy and interact with that
contract on chain
DEMO TIME!

● Beneﬁts of Smart Contracts
● Chainlink Products
○ Data Feeds
○ VRF
○ Keepers
● Built and deployed a contract in under 5 minutes!
Where we’ve been

Where to go from here
Discord Chat
http://chn.lk/chainlink-discord
Documentation
http://docs.chain.link
Starter Kits
https://github.com/smartcontractkit
Chainlink Academy
https://www.chainlink.education/

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Chainlink Hackathon: Technical Workhop

1. What is Chainlink? @rgottleber richard.gottleber@chainlinklabs.com

2. What is a Smart Contract? Why are they important? The Purpose Of Smart Contracts

3. Traditional Agreements

4. Cryptographic Agreements

6. The Smart Contract Connectivity Problem

7. The Oracle Problem

8. The Solution to the Smart Contract Connectivity Problem

9. Centralized Oracles are a Point of Failure Data Sources Centralized Node Decentralized Computation 1 node Thousands of nodes

10. Centralized Oracles are a Point of Failure 1 node Thousands of nodes Data Sources Centralized Node Decentralized Computation

11. Decentralization Full replicas run by independent node operators. Focused on data validation and consensus. Node Operators are security reviewed, can provide a proven performance history. A Decentralized Oracle Network

12. Reaching Consensus

13. Hybrid Smart Contracts Combine On-chain & Off-chain Systems

14. What Does Chainlink Offer? Data Feeds VRF Keepers

15. Data Feeds Secure and reliable access to real world data

16. Powering over $20 billion in the DeFi world

17. Price Data Enabling DeFi to Reinvent Financial Systems

18. data.chain.link

19. Securing randomness for your applications Chainlink VRF

20. Malicious RNG Operators Are A RISK

21. Selecting Lottery Winners Random Traits

22. Decentralized event-driven execution Chainlink Keepers

23. Chainlink Keepers

24. Goals ● Leverage the Chainlink Docs ● Build a Smart Contract using data feeds ● Deploy and interact with that contract on chain DEMO TIME!

25. ● Beneﬁts of Smart Contracts ● Chainlink Products ○ Data Feeds ○ VRF ○ Keepers ● Built and deployed a contract in under 5 minutes! Where we’ve been

26. Where to go from here Discord Chat http://chn.lk/chainlink-discord Documentation http://docs.chain.link Starter Kits https://github.com/smartcontractkit Chainlink Academy https://www.chainlink.education/

27. Q & A

Chainlink Hackathon: Technical Workhop

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