What is a smart contract?

A smart contract is like a computer program that can automatically execute agreements between people or businesses. For example, if you wanted to buy a house, a smart contract could be used to hold the deposit until you paid the rest of the purchase price. Once the price was paid, the contract would release the deposit to the seller. Smart contracts can also be used for selling NFT’s, DeFi, or to track things like votes or inventory.

Brief history of smart contracts

Smart contracts have been around since the early days of blockchain technology and Bitcoin. The term was first coined by Nick Szabo, a computer scientist, lawyer, and cryptographer, in 1996. He defined smart contracts as “building blocks for digital markets.”

Szabo’s vision for smart contracts was to create a more efficient way of conducting transactions and agreements between parties. He saw them as a digital vending machine, where a contract is executed when someone puts money into the machine and gets the product. Since then, smart contracts have become an integral part of blockchain technology. They are used to facilitate, verify, and enforce the negotiation or performance of a contract.

There are many different ways to create and execute a smart contract. The most common platform for doing so is Ethereum, which has its own programming language, Solidity. Smart contracts have a wide range of potential applications. They can be used for everything from financial transactions to voting systems.

One of the most notable examples of a smart contract is the DAO, or Decentralized Autonomous Organization. The DAO was created on the Ethereum blockchain and raised over $150 million from investors. However, due to a flaw in its code, it was hacked and lost a third of its funds. This event led to a hard fork of the Ethereum blockchain and the creation of Ethereum Classic.

Different forms of smart contracts

Smart legal contracts

Smart legal contracts are like regular contracts, but with some of the obligations being carried out by a computer program instead of by people. This means that once the contract is set up, everything can happen automatically without anyone having to do anything else.


Decentralized Autonomous Organizations (DAOs)

A DAO is a decentralized autonomous organization that cooperates according to transparent rules encoded on the Ethereum blockchain, eliminating the need for a centralized, administrative entity.

DAO smart contracts are immutable, meaning they cannot be changed or tampered with once deployed. This is what makes them trustless and secure. The rules of a DAO are written into its smart contract code and enforced by the Ethereum network. DAOs are powered by tokens. Token holders can vote on proposals to change the DAO’s rules, or to allocate funds to projects. The more tokens a member holds, the more voting power they have.

Token holders can also delegate their voting power to other members, or to a smart contract that makes voting decisions automatically.

DAOs offer a number of advantages over traditional organizations. They are open and transparent, with all transactions recorded on the blockchain. They are borderless, meaning anyone can participate regardless of location. And they are resilient, because there is no single point of failure that can be attacked or corrupted.


Contracts of Applied Logics (ALCs)

ALCs are application-specific codes that help establish and validate communication between IoT devices. ALCs make up a vital piece of every multi-function smart contract and majorly function under a managing program. built on a decentralized network that combines a smart contract with the front-end user interface.

In simple terms, an ALC is like a set of rules that tells devices how to communicate with each other. By creating these rules, or contracts, we can automate many processes and make sure that everyone involved is following the same protocol. This makes things more efficient and can help avoid errors.

For example, imagine you are trying to get your computer to talk to your printer. You might have to install special software or drivers to help the two devices understand each other. An ALC would be like a set of instructions that tells the computer and printer how to communicate with each other, so you wouldn't need to install anything extra.

ALCs are important because they help us connect different devices and systems together, without having to worry about compatibility issues. This is especially important in the world of the Internet of Things (IoT), where there are billions of devices that need to be able to communicate with each other.

So next time you see a contract of applied logics, remember that it’s just a set of rules that helps devices talk to each other!


A decentralized application (dApp)

A dApp is a type of software that runs on a decentralized network. This means that the code for the dApp is available for anyone to use and contribute to. DApps are similar to other software applications, but they are supported by the community instead of a centralized server. This makes them more resistant to fraud and censorship, and allows them to run even if the original developers are no longer involved.

Smart contract audits

Pix assesses the security of Solidity smart contracts, identifies weaknesses and alerts you of the risks. With our smart contract audit findings you enjoy actionable guidance for reducing the risk of compromising data security.

Contact us today to learn more about our smart contract security audit services.


Why do a smart contract audit?

As organizations continue to adopt blockchain technology, the need for smart contract security audits has never been greater. Smart contracts are at the forefront of blockchain technology and can be used for a variety of purposes, from financial transactions to supply chain management. However, as with any new technology, there can be potential security vulnerabilities that are exploited by hackers or cybercriminals.

An audit of a smart contract can help to identify any potential security weaknesses and recommend remediation steps to mitigate the risks. Smart contract security audits are essential for any organization that is looking to adopt or use blockchain technology.

When to do a smart contract audit?

Organizations should conduct a smart contract security audit before deploying. By conducting an audit prior to deployment, organizations can ensure that their smart contracts are secure and free from any vulnerabilities.

No organization is immune to the possibility of a security breach, but by conducting a smart contract security audit, organizations can mitigate the risks associated with blockchain technology. Smart contract security audits are essential for any organization that is looking to adopt or use blockchain technology. By conducting a thorough audit, organizations can ensure that their smart contracts are secure and free from any vulnerabilities.

What are the benefits of a smart contract security audit?

There are many benefits to conducting a smart contract security audit, including:

  • Identifying any potential security risks associated with a smart contract
  • Ensuring that the smart contract is secure and free from any vulnerabilities
  • Mitigating the risks associated with a smart contract
  • Protecting the organization from loss of revenue or customer data exposure

How much does it cost to audit a smart contract?

The cost of auditing a smart contract varies depending on the size and complexity of the contract, as well as the experience level of the auditor. Generally, prices range from 1,000 to 20,000 euro/dollar.

How long does a smart contract audit take?

Like price, duration also depends on the size and complexity of the contract. A typical audit can take anywhere from a few days to a couple of weeks. The most important thing is to make sure that the auditors have enough time to thoroughly review the code and identify any potential issues.