Towards Trustless Messaging: Blockchain Architectures and Economic Implications

Abstract

Blockchain technology provides a platform for developing secure and decentralized communication systems such as chat applications through transparent and trustless interactions across a distributed blockchain network, without the need for centralized servers. In these communication systems, smart contracts manage decentralized identities, control access permissions and validate message transactions. This ensures that the communicated data remains immutable and tamper proof. Authentication and privacy are achieved using cryptographic techniques such as hashing, digital signatures, public-private key, and encryption. Inter Planetary File System (IPFS) is commonly implemented to handle the immense amount of data generated in a chat-based communication system while still maintaining the ability to verify the data through cryptographic hashes. From a design perspective, blockchain-based chat applications offer enhanced data ownership, stronger integrity guarantees, and improved resistance to censorship and single points of failure. However, challenges related to scalability, latency, transaction costs, and usability continue to affect practical deployment. Addressing these issues is essential for enabling real-world adoption and large-scale implementation of decentralized blockchain-based communication systems.