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Verifiable DePINs Are the Future of Decentralized Infrastructure

Published September 27, 2024 2:32 PM
Published September 27, 2024 2:32 PM
By Qevan Guo
Edited by Samantha Dunn
Key Takeaways
  • DePINs are critical for ensuring trust in the data and services generated by the physical world that involve user-owned hardware.
  • The lack of verifiability in DePINs poses significant technical and business risks, including the potential for manipulated data or compromised services.
  • Verifiable DePINs unlock new opportunities and use cases, such as composability and interoperability across industries and sectors.

In an era where trust is increasingly scarce, the mantra “Don’t trust, verify” has never been more vital, as we’ve learned from the lessons of the FTX collapse and recent Crowdstrike outage. Decentralization, at its core, offers an antidote to trust issues by enabling verifiability—users don’t need to place their blind faith in centralized authorities; instead, they can independently verify the integrity of data and their transactions.

This principle has been a driving force behind the adoption of blockchain technology, especially in sectors like DeFi. However, as we enter the era of Decentralized Physical Infrastructure Networks (DePINs), the challenge of ensuring verifiability in real-world data becomes even more pressing.

DePIN expands upon internet-of-things IoTs by adding individual monetization and real-world data bridges. Unlike purely digital decentralized applications (Dapps), which can operate entirely on-chain, DePINs must interact with the physical world. These networks, composed of user-owned hardware, generate valuable real-world data and services, which individuals can then upload to generate revenue.

However, this necessity to operate with physical devices introduces a unique challenge: how can we ensure that the data being generated and the actions performed in the physical world are trustworthy when brought on-chain?

This is where the concept of verifiable DePINs becomes critical. Without verifiability, the promise of decentralized infrastructure breaks down. Unfortunately, many DePIN projects today prioritize quick deployment over long-term trust, opting for centralized and unverifiable systems to speed up their go-to-market strategies.

This shortsighted approach threatens the integrity of the entire DePIN ecosystem. It is imperative that we prioritize verifiable infrastructure to build systems that can be trusted, both now and in the future.

Why Verifiability Is Essential for DePINs

Verifiability ensures that all stakeholders—whether they are builders, users, or investors—can trust the system. The idea is simple: trust no one, but verify everything. In the context of DePINs, this verification process revolves around two core components:

  1. Proof of Identity – Verifying that devices providing data or services are who they claim to be.
  2. Proof of Utility – Verifying that devices are actually performing the tasks they claim to be doing.

These two elements form the backbone of the “supply-side” of a DePIN. Just as an employer must verify a potential employee’s qualifications and trustworthiness before hiring, DePIN users and investors must be able to verify the devices they interact with. Without this ability to verify, the trustworthiness of the entire network is called into question.

However, verifiability extends beyond the physical devices in the network. A DePIN’s value chain—which includes data transmission, storage, computation, and reward distribution—must also be auditable and verifiable. Every component in this chain must be transparent, as the system is only as secure as its weakest link.

Modular Infrastructure for Verifiable DePINs: The Path Forward

To build verifiable DePINs, we need a modular infrastructure that ensures end-to-end transparency and security. This infrastructure must cover every stage of the DePIN value chain, from data collection to reward distribution.

Here’s how this modular infrastructure works:

  • Device Verifiability – Devices generating data must be equipped with secure elements that provide cryptographic proof of their identity and integrity. This ensures that any data point or service provided can be trusted.
  • Secure Data Collection and Transmission – Data collected from devices must be securely transmitted to protect it from tampering or interception, creating an unbroken line of trust from the device to the blockchain.
  • Data Processing Integrity – Off-chain computation is often necessary in DePINs due to the scale of data involved. To ensure verifiability, zk-SNARKs (zero-knowledge proofs) and TEEs (trusted execution environments) can be employed. These cryptographic tools guarantee that even when data is processed off-chain, the results remain verifiable on-chain.
  • Trustworthy Reward Distribution and Device Management – Once the data or service has been verified, rewards can be distributed to the device owner through the blockchain. The transparency and immutability of blockchain ensure that this process is auditable and tamper-proof, providing trust to all stakeholders involved.

The Risk of Unverifiable DePINs

Many existing DePIN projects have chosen centralized infrastructure in their rush to market. This approach, while convenient, comes at the cost of verifiability. For example, centralized servers and opaque processes may provide data and services quickly, but they cannot guarantee that the data is accurate, untampered, or trustworthy.

This creates a significant risk, as the lack of transparency can lead to manipulated data or compromised services without users even knowing.

Such risks become even more dangerous as DePINs scale. When these networks are small, the lack of verifiability may not seem like a pressing issue; however, as more devices join and more data flows through the network, the potential for malicious activity grows. Without verification mechanisms, a single compromised device or server could undermine the trust in the entire system.

This is not just a technical risk—it’s a business risk. Investors and users are less likely to support networks that cannot guarantee the integrity of their data and services. In the long run, DePINs built on unverifiable infrastructure will struggle to maintain trust, stifling their growth and limiting their potential.

Unlocking New Use Cases With Verifiable DePINs

Verifiable DePINs unlock a host of new opportunities, both present and future. Today, decentralized networks for wireless communication, energy grids, and IoT systems benefit from verifiable infrastructure. These systems are more resilient and trustworthy, driving demand from users and businesses alike.

Looking forward, the potential of verifiable DePINs goes beyond simple applications. Composability—the ability for decentralized systems to interact seamlessly—will be unlocked by verifiable infrastructure. Imagine networks that share data and services across borders, industries, and sectors, all while maintaining transparency and trust.

This level of interoperability will pave the way for new business models and use cases that were previously unimaginable. At the moment, DePIN is already a burgeoning $26.5 billion ecosystem  measured by token value alone, and I expect the total addressable market to increase in the coming years as more and more users enter.

Disclaimer: The views, thoughts, and opinions expressed in the article belong solely to the author, and not necessarily to CCN, its management, employees, or affiliates. This content is for informational purposes only and should not be considered professional advice.