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Ethereum Classic Blog

The Skinny On Smart Contracts: An Introduction & Why You Should Care

Christian Seberino
Apps, Development, Education

Introduction

ATM
ATM

Smart contracts, as defined by Nick Szabo, are computer systems that manage assets. Assets include money, votes, passports and reputation. Examples of smart contracts include supermarket checkout systems and automated teller machines.

Actions & Agents

washing machine
washing machine

Smart contracts can perform actions. Automobile insurance plans might adjust rates hourly based on the weather or location. Washing machines might order replacement parts when needed.

handshake
handshake

Because smart contracts often operate autonomously, it might sometimes be more appropriate to refer to them as agents (autonomous software components). On the other hand, the original term emphasizes that they can manage many legal and financial agreements. An example of a smart contract that managed a financial agreement would be a television that stopped working when the loan payments were in arrears.

Blockchains

blockchain
blockchain

Blockchain systems, such as Ethereum and Ethereum Classic, are ideal platforms for smart contracts (agents) because of their security, reliability and censorship resistance.

Improved Communication

law
law

A major benefit of smart contracts is the improved communication. Uncertainties in legal and financial agreements such as confusing legalese and unintended loopholes incur huge costs. In contrast, smart contracts are deterministic and formal verification methods can help avoid mistakes.

Smart contracts can have the flexibility of legal contracts¹. For example, they can be designed to allow modifications when there are certain unforeseen events.

Conclusion

Smart contracts can effectively manage assets removing a lot of the confusion of previous methods. Furthermore, when implemented on blockchain systems, they can have unprecedented levels of security, reliability and censorship resistance.


1. Some have misinterpreted the saying, "Code is law!", as implying smart contracts somehow supercede legal systems. The intended meaning is that blockchain based smart contracts should be immutable and unstoppable like laws of *nature*.

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You can contact me by clicking any of these icons:

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Acknowledgements

I would like to thank Gavin Wood for his informative papers and talks that have greatly helped clarify many of these ideas. I would also like to thank IOHK (Input Output Hong Kong) for funding this effort.

License

license
license

This work is licensed under the Creative Commons Attribution ShareAlike 4.0 International License.

This page exists thanks in part to the following contributors:


cseberino
cseberino
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