The new ERC-6551 standard allows NFTs to essentially be their own wallets, termed “Token Bound Accounts”. TBAs enable NFTs to hold and manage various assets, essentially turning NFTs into dynamic entities rather than static assets. This feature facilitates several applications: composability, where NFTs can bundle related assets for easier management…

Blockchain technology has revolutionized the way we think about financial transactions and decentralized applications. One concept that has emerged in recent years to enhance the flexibility and interoperability of blockchain systems is account abstraction. …

As decentralized finance (DeFi) continues to grow in popularity, the need for secure and reliable wallet solutions becomes more important than ever. One of the most trusted options for managing digital assets in the DeFi space is the Gnosis Safe multisig wallet. …

Polygon, previously known as Matic Network, is a layer 2 scaling solution for Ethereum that offers several features for developers and users who want to build and use decentralized applications (dApps) on Ethereum. …

Damn Vulnerable DeFi (DVDeFi) is a platform that provides a series of challenges designed to assess the security and reliability of decentralized finance (DeFi) applications. The platform is an initiative to educate people about the importance of secure coding and to raise awareness of potential risks and vulnerabilities in the…

The growth of decentralized applications and the increasing number of users on the Ethereum network has brought with it an array of scalability issues, including high fees and slow transaction times. …

The idea of Multi-Signature wallets appeared in 2012, with the first ones being created and implemented a year later for the Bitcoin blockchain. To define a Multi-Signature Wallet simply, we could see it as a bank vault. From a technical point of view, to unlock such a vault, more than…

In the era of digitization, protecting sensitive data is a critical concern for individuals and organizations alike. Cryptography is the science of securing communication in the presence of adversaries. In recent years, the concept of Zero Knowledge (ZK) has emerged as a significant paradigm in cryptography that enables parties to…

Smart contracts have revolutionized the way transactions occur on a blockchain. They are self-executing contracts with the terms of the agreement between buyer and seller being directly written into lines of code. Once the terms are fulfilled, the contract automatically enforces the transaction without the need for intermediaries. But what…