Smart Contract

    skycentral.co.uk | Smart Contract

    Smart Contract: A self-executing contract with the terms of the agreement directly written into code.

    A Smart Contract is a self-executing contract where the contract terms are directly written into lines of code. These are not traditional contracts on paper but automated contracts deployed on a blockchain network, ensuring they are immutable, transparent, and distributed. While they can be used on multiple blockchain platforms, Ethereum is the most common one for deploying Smart Contracts.


    1. Blockchain: Smart Contracts reside on a blockchain, which acts as a decentralized digital ledger. This ensures the immutability and trustworthiness of the contract.
    2. Programming Languages: Smart Contracts are generally written in domain-specific programming languages like Solidity for Ethereum, or Chaincode for Hyperledger Fabric.
    3. Immutable: Once deployed, the terms cannot be altered unless coded to be upgradable, which still leaves a traceable path of the change.
    4. Transparency: All the parties involved can view the contract terms and verify transactions without relying on a third party.
    5. Automated Execution: When predetermined conditions are met, the contract self-executes, eliminating the need for intermediaries.
    6. Gas Fees: Executing a Smart Contract requires computational work, for which “Gas Fees” are charged on networks like Ethereum.

    Key Features:

    1. Self-Executing: Functions within the Smart Contract execute automatically when the conditions specified in the contract are met.
    2. Decentralization: Since they are hosted on a blockchain network, there is no central authority overseeing the execution.
    3. Security: The cryptographic algorithms make it secure and resistant to fraud.
    4. Efficiency: Speeds up and automates processes, making it cost-effective.
    5. Transparency and Trust: Everyone involved can inspect the contract terms and transactions.


    1. Decentralized Finance (DeFi): For creating lending protocols, stablecoins, and more.
    2. Supply Chain: For tracking the journey of products from manufacturing to delivery.
    3. Tokenization: Creating digital representations of assets like real estate, art, etc.
    4. Identity and Credentials: For verifying the identity of individuals in a secure and immutable manner.
    5. Voting Systems: To create transparent and fraud-resistant voting mechanisms.


    1. Code Vulnerabilities: Bugs in the code can lead to financial loss or other issues.
    2. Complexity: Writing a secure and efficient Smart Contract can be complex.
    3. Legal Recognition: They are still not widely recognized as legal contracts in many jurisdictions.
    4. Scalability: Blockchain networks may face scalability issues, affecting the efficiency of Smart Contracts.