20% OFF - limited-time enrollment offer.
Applied automatically when you book a call before the timer hits zero.
--
Days--
Hours--
Minutes--
Seconds- Guarantee: Job or 100% money back
- Expert-curated curriculum
- On-demand mentor support
The Metana Blog
Guides, tutorials & career tips.
Expert-written guides on Full-Stack Development, Web3, AI, Data, and Cybersecurity — built for aspiring engineers and tech professionals ready to level up.
Smart ContractsGovernance Attacks in Smart Contracts
In the realm of Web3, the concept of decentralization is not just a buzzword—it’s a fundamental principle. Decentralized Autonomous Organizations (DAOs) epitomize this ethos, where token holders collectively make decisio
Metana EditorialJune 26, 2024Read
Smart ContractsExcessive Function Restriction in Smart Contracts
In the world of blockchain and smart contracts, security is paramount. However, there’s a fine line between ensuring security and creating rigid, inflexible systems. One common pitfall in smart contract design is excessi
Metana EditorialJune 25, 2024Read
Smart ContractsInsecure Randomness in Smart Contracts
In the dynamic and evolving landscape of Web3, randomness plays a crucial role in ensuring the fairness and unpredictability of various applications. From provably fair gaming to the generation of unique tokens, the inte
Metana EditorialJune 25, 2024Read
Smart ContractsReentrancy Attack in Smart Contracts
In a traditional transaction, one party sends funds to another in exchange for goods or services. This exchange typically follows a well-defined sequence of steps. However, in the realm of smart contracts, vulnerabilitie
Metana EditorialJune 21, 2024Read
SolidityAccess Control in Solidity Smart Contracts
Access control is a crucial aspect of smart contract security, governing who is authorized to perform specific actions within the contract. Just as a bouncer at an exclusive club ensures only permitted guests enter, acce
Metana EditorialJune 20, 2024Read
SolidityTime Units in Solidity: Simplified Guide
Welcome to the fascinating world of smart contracts, where lines of code dictate financial agreements and automate complex processes. But what about time? How do we ensure actions happen at the right moment within a smar
Metana EditorialJune 14, 2024Read
BlockchainDelegatecall in Solidity: Your Simplified Guide
Delegatecall is a powerful but intricate feature in Solidity that allows contracts to delegate execution to other contracts. Understanding delegatecalls is crucial for building advanced smart contract functionalities lik
Metana EditorialMay 28, 2024Read
BlockchainLow Level Call vs High Level Call in Solidity [Simplified]
TL;DR Solidity contracts interact with other contracts using high-level calls (via interfaces) or low-level calls (call, delegatecall, staticcall). Key Differences: Best Practices: In Solidity, contracts can interact wit
Metana EditorialMay 17, 2024Read
Talk to an advisor
Book a call with a real human before the next cohort fills.
Speak with an advisor. We'll map the right program to your goals - and lock in your enrollment offer.