Current peer-to-peer networks lack robust qualities such as Byzantine fault tolerance and good connectivity. In response, the paper OverChain: Building a Robust Overlay with a Blockchain proposes utilizing the blockchain itself to maintain a resilient hypercubic network for cryptocurrency blockchains like Bitcoin.

• Develops secure join mechanisms using blockchain to aid new peers in integrating into the network.
• Offers communication-efficient protocols to uphold the network despite peer churn.
• Demonstrated ability to recover from considerable adversarial disruptions and maintain structural integrity.
• The approach tackles the maximum churn rate possible within bounds, enhancing connections in distributed networks.

OverChain presents a practical architecture that leverages blockchain for dependable networking. This proposal might be the solution to strengthening the distributed foundations of cryptocurrencies, ensuring their networks are future-proof against adversarial attacks and system failures.