What is a smart contract in blockchain with example?

What is a smart contract? 

Smart Contracts was initially coded in Ethereum for the Ethereum Virtual Machine. However, there were new approaches that were built over the years.

A smart contract is a computer protocol that helps users to interact without a third party. In creating a smart contract in blockchain, users put all the conditions there, then it works automatically, and all the requirements are followed without interference.

A smart contract is a combination of an automatable and enforceable agreement signed by a computer, although various parts may require human input and control. Enforceable either by legal enforcement of rights if one is using regulatory compliant blockchains like Concordium, which even has on-chain ID verification and obligations tied with the smart contracts, or via tamper-proof execution of computer code.

What is a smart contract in blockchain? 

Smart contracts in blockchain are standard digital contracts stored on a blockchain and executed automatically when already coded terms and conditions are met. They are programs stored on a blockchain typically used to perform automated agreements so that every participant can be sure of its result without involving any intermediary. Smart contracts are also equipped to automate a workflow by triggering the upcoming action when the required terms are met.

When smart contracts are equipped, the transactions are unchangeable, and only the involved parties who have been given permission can view the results. Inside smart contracts, there can be as many stipulations as needed to comfort the clients that the provided work will be finished with utmost care. Smart contracts are typically rapid; once a programmed condition is met, the contract will execute automatically. Because it is automated, no paperwork is required, and the trust and the transparency level of smart chains are top-notch. The performed transactions and their records are kept encrypted, which makes them very tedious to hack into.

If the blockchain does not have regulatory compliance, it may or may not be legally enforceable. Smart contracts can be used across various industries for streamlining and automating business worldwide. With smart contracts, you can build a resilient supply chain and manage them without a sweat.

Examples of smart contracts in the blockchain: 

Smart Contracts are digital contracts existing within a blockchain that execute themselves when certain predetermined conditions are met. It enables two parties to conduct a transaction without any intermediary intervention like banks and offers the following benefits to the users:

  • Secure and transparent
  • No interruption
  • Autonomous
  • Fast performance
  • Cost-effective

Examples of smart contracts in blockchain technology

  • Real Estate

Smart contracts facilitate real estate transactions directly between the dealer and the buyer by removing rent-seeking third parties like brokers. 

Smart contracts keep a record of transactions, store the details of property and land owners, allow payments and transactions overseas, and offer fraud-proof transactions.

  • Resolving Errors in Trade Finance

Smart contracts can reduce numerous errors in trade finance by ensuring automation of workflows while also simplifying calculations. It also reduces significant work hours.

  • Elections

Blockchain-based voting systems can improve accessibility to elections while enhancing voter participation. Smart contracts can accelerate the process of tallying and reporting the votes and enable proper identity verification of voters to avoid multiple voices.

  • Safeguarding Medical Data

Smart contracts protect the data from cybercriminals and data breaches by enabling a secure exchange and storage of patient data among healthcare providers.

  • Administrative payments and billing

Smart contracts provide solutions to the problems arising from traditional payment and billing methods by offering trust, transparency, and no human intervention. As smart contracts are secure and inexpensive to maintain, they can be efficiently used for payrolls, pensions, insurance, bill payments, and taxation.

Smart contracts are finding use cases in more and more industries day by day. If you want to build a smart contract for your business or like to learn smart contracts in the block, Simplilearn online learning is a platform for learners under professional experts from the industry. 

Benefits of smart contracts

  • Accuracy, speed, and efficiency of contract. 
  • The contract is executed quickly when a condition is met. 
  • No paperwork is involved because smart contracts are digital and automatic. 
  • The main benefit, no time is spent correcting the errors. 
  • Trust and transparency 
  • No need to get tensed about information for personal gain and third-party engagement. 
  • Encryption transactions are exchanged among participants. 
  • Security and savings 
  • Smart contracts disown the need for intermediaries to conduct transactions, fees, and time delays with them. 

How Do Smart Contracts Work?

A brilliant agreement is a program that encodes business rationale and works on a devoted virtual machine implanted in a blockchain or other appropriated record.

Stage 1: Business groups work with engineers to characterize their measures for the agreement’s ideal way of behaving in light of specific occasions or conditions.

Stage 2: Conditions, for example, installment approval, shipment receipt, or a utility meter perusing edge, are instances of important occasions.

Stage 3: More complicated tasks, for example, deciding the worth of a subordinate monetary instrument, or naturally delivering a protection installment, may be encoded utilizing a more refined rationale.

Stage 4: The designers then, at that point, utilize a smart contract composing set to make and test the rationale. After the application is ordered, it is shipped to a different group for security testing.

Stage 5: An interior master or an organization that spends significant time screening brilliant agreement security could be utilized.

Stage 6: The agreement is sent on a current blockchain or conveyed record framework whenever approved.

Stage 7: The shrewd agreement is designed to tune in for occasion refreshes from a “prophet,” a cryptographically protected streaming information source,

whenever it has been conveyed.

Stage 8: Once it gets the refreshing blend of occasions from at least one prophet, the brilliant agreement executes.


In order for smart contacts to grow, blockchain technology is the underlying technology. The Blockchain Certification Training was created for developers who wish to understand the global craze regarding blockchains, bitcoins, and cryptocurrencies. The course will provide you with an overview of the blockchain platforms for Bitcoin, Ethereum, Hyperledger, Dogecoin, and Multichain. By developing Blockchain applications, setting up your private Blockchain, deploying smart contracts on the Ethereum network, and gaining practical experience with real-world projects, SimpleLearn will provide you with the latest tools. 

Blockchain is the underlying technology that enables the growth of business and smart contracts. Simplilearn online learning platform offers blockchain certification training designed for developers to decipher the knowledge of the surrounding blockchains, bitcoin, and cryptocurrencies.

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