Write permission refers to the ability to make changes to a blockchain or to interact with smart contracts. It allows users to add, modify, or delete data within a decentralized ledger. This is crucial for actions such as transferring funds, deploying new contracts, or updating the state of an existing contract.Only certain users or entities typically have write permissions, which helps maintain the integrity and security of the blockchain. For example, in a public blockchain, anyone can often read the data, but only those with the necessary authorization can write to it. This setup helps prevent unauthorized changes and ensures that only legitimate transactions are recorded.In permissioned blockchains, write permissions are even more tightly controlled. Users are granted specific rights based on their roles, which helps organizations manage access and maintain operational governance. Properly managing write permissions is essential for preventing fraud and ensuring smooth functionality within blockchain networks.