# VidBlock: A Web3.0-Enabled Decentralized Blockchain Architecture for Live Video Streaming
## 5 Discussion
### Comparison with Traditional and Decentralized Streaming Systems  
Traditional CDNs, commonly utilized by centralized streaming platforms, have proven effective for rapid content delivery to large audiences. These platforms rely on robust infrastructure, such as content delivery networks (CDNs), to handle high traffic and ensure content availability. However, they exhibit critical limitations concerning user privacy, high infrastructure costs, and a reliance on centralized servers, which creates a single point of failure. These drawbacks become particularly evident during high-demand periods or regional disruptions, where service continuity and user control over data may be compromised.  
\begin{table}
\begin{tabular}{|c|c|c|c|c|} \hline \(N\) & \(P_{m}=0.1\) & \(P_{m}=0.2\) & \(P_{m}=0.3\) & \(P_{m}=0.4\) \\ \hline
50 & \(1.01\times 10^{-12}\) & \(2.09\times 10^{-6}\) & \(2.37\times 10^{-3}\) & \(9.78\times 10^{-2}\) \\
100 & \(5.83\times 10^{-24}\) & \(2.14\times 10^{-11}\) & \(2.21\times 10^{-5}\) & \(2.71\times 10^{-2}\) \\
200 & \(2.70\times 10^{-46}\) & \(3.10\times 10^{-21}\) & \(2.60\times 10^{-9}\) & \(2.64\times 10^{-3}\) \\
300 & \(1.44\times 10^{-68}\) & \(5.17\times 10^{-31}\) & \(3.49\times 10^{-13}\) & \(2.86\times 10^{-4}\) \\
400 & \(8.16\times 10^{-91}\) & \(9.13\times 10^{-41}\) & \(4.96\times 10^{-17}\) & \(3.26\times 10^{-5}\) \\
500 & \(4.77\times 10^{-113}\) & \(1.66\times 10^{-50}\) & \(7.28\times 10^{-21}\) & \(3.82\times 10^{-6}\) \\ \hline \end{tabular}
\end{table}
Table 4: Probability of a successful 51% attack (\(P_{\text{attack}}\)) for different network sizes and attacker power ratios.  
VidBlock addresses these challenges by implementing a layered, decentralized architecture that combines blockchain technology with a dynamic relay node system. Unlike traditional CDNs, VidBlock enhances data sovereignty by allowing users to retain ownership and control over their content, eliminating the dependency on centralized storage solutions. Moreover, the blockchain-based design ensures secure, immutable metadata records, reducing the risk of data breaches and unauthorized access.  
However, we acknowledge the trade-offs inherent in decentralized systems. VidBlock's peer-to-peer (P2P) architecture, while reducing latency and enhancing resilience, relies on robust node participation to maintain consistent performance. Unlike centralized systems that can scale predictably with additional server capacity, decentralized systems like VidBlock must manage variability in node availability and network conditions. These challenges are mitigated through VidBlock's dynamic relay node system, which provides fault tolerance and ensures uninterrupted service by seamlessly re-routing traffic during node failures.  
To provide a balanced evaluation, Table 1 compares VidBlock with established centralized platforms like Netflix, Amazon Prime Video, YouTube, Twitch, and Hulu. This table emphasizes both the advantages of VidBlock's decentralized architecture, such as enhanced user control, reduced infrastructure costs, and robust privacy protections, and its potential risks, including reliance on node availability and fault tolerance mechanisms.  
In summary, VidBlock's architecture advances the field of decentralized streaming by addressing the high infrastructure costs and privacy concerns of traditional CDNs while introducing innovative solutions to improve resilience and user data control. By transparently acknowledging the trade-offs of decentralization and implementing robust risk management strategies, VidBlock provides a scalable, user-driven alternative for live streaming and other real-time applications.