The promise of blockchain technology has always centered around decentralization—removing centralized control and distributing power across a network of participants. However, a 2018 study presented at the Financial Crypto 2018 conference in Curaçao challenges this ideal, revealing that most major blockchains, including Bitcoin and Ethereum, still operate under what researchers describe as "pseudo-decentralization."
This in-depth analysis explores the real state of decentralization in leading blockchain networks, the concentration of developer influence, and what it means for the future of open-source governance.
Measuring Decentralization Through Code Contributions
A team of researchers from University College London (UCL) published a paper titled "Egalitarian Society or Benevolent Dictatorship: The State of Cryptocurrency Governance", which examines how decentralized these networks truly are by analyzing code contributions.
The findings are telling:
- 7% of Bitcoin Core’s codebase was written by a single developer.
- Nearly 20% of Bitcoin’s source files were authored by one individual.
While this already suggests a high degree of centralization in development, the situation with Ethereum appears even more concentrated.
Sarah Azouvi, a Ph.D. candidate in computer science at UCL and co-author of the study, noted that Ethereum’s development is more centralized than Bitcoin’s. This observation adds fuel to ongoing debates within the Ethereum community about governance, particularly around EIP 867, a controversial proposal aimed at creating a mechanism to recover lost funds.
👉 Discover how blockchain governance impacts real-world crypto decisions.
The Role of Key Developers: Vitalik Buterin’s Influence
One of the most striking findings in the study is the disproportionate role played by Vitalik Buterin, Ethereum’s co-founder. According to Azouvi, Buterin stands out significantly in terms of code contributions and decision-making authority.
“He stands out from everyone else,” Azouvi stated.
This level of influence raises concerns about whether Ethereum can truly be considered decentralized when so much power rests in the hands of one individual. Even Jason Teutsch, a developer behind the Ethereum scaling solution TrueBit, acknowledged this informally—joking that Buterin could “just handle everything” when asked about governance.
But beneath the humor lies a serious issue: blockchain governance is inherently difficult. As Teutsch explained:
“It’s a hard problem. It happens in every system that requires governance. Whenever there’s a change, someone will be unhappy.”
While some view Buterin’s leadership as necessary during Ethereum’s formative years, others worry that long-term reliance on a single figure contradicts the core principles of decentralization.
Is This Level of Centralization Unusual?
Despite concerns, the UCL researchers emphasize that this concentration of development isn’t unique to blockchain projects. When compared to other open-source software ecosystems—such as programming languages like Clojure and Rust—Bitcoin and Ethereum show similar patterns of contributor distribution.
“Even though the community focuses heavily on decentralization, the behavior isn’t that different. Open-source projects tend to follow similar contribution models,” Azouvi observed.
This suggests that high contributor concentration may be a natural outcome of how collaborative software development evolves, regardless of ideological goals.
However, the study also highlights limitations in measuring decentralization solely through code analysis. Simply counting lines of code or file ownership doesn’t capture the full picture of network health or resilience.
Alternative Metrics: Network Propagation and Node Distribution
At the same conference, researchers from IC3 (Initiative for Cryptocurrencies & Contracts) proposed alternative ways to assess decentralization beyond code contributions:
- Block propagation time – How quickly new blocks spread across the network.
- Geographic distribution of nodes – Where validators and full nodes are physically located.
Using these metrics, Ethereum actually outperformed Bitcoin in both categories:
- Faster block propagation across global nodes.
- More evenly distributed node infrastructure.
These technical indicators suggest that while developer centralization remains an issue, network-level decentralization may be stronger than previously assumed.
One audience member added another critical dimension: economic decentralization. Factors such as token ownership concentration and staking power distribution are equally important but were not covered in the original study.
Governance Challenges and the Need for Formal Systems
As interest in blockchain governance grows, so does the urgency for better decision-making frameworks. Yet many developers remain hesitant to take strong stances on contentious proposals like EIP 867.
Jason Teutsch expressed neutrality:
“I don’t want to take any side. I’m interested in technical solutions, but I won’t favor one over another.”
Still, he acknowledged that improved voting mechanisms could help resolve disputes more fairly.
Azouvi echoed this sentiment:
“We didn’t propose a new system. We’re just measuring who’s doing what.”
She suggested that Ethereum could benefit from a more formal governance model, though admitted such systems are difficult to design:
“Even if you want a formal process, it’s hard to decide who writes proposals and who gets to vote.”
Her key recommendation?
“They should ensure everyone who can vote actually does.”
👉 Explore how emerging governance models are shaping the next generation of blockchains.
Frequently Asked Questions (FAQ)
What does "pseudo-decentralized" mean?
"Pseudo-decentralized" refers to systems that appear decentralized on the surface but are controlled or heavily influenced by a small group of individuals or entities—such as core developers or major stakeholders—undermining true distributed control.
Why is developer centralization a problem?
When too much code is written or controlled by a few developers, it creates single points of failure, reduces transparency, and increases risks of bias or manipulation in protocol upgrades.
How is Ethereum more centralized than Bitcoin?
According to the study, Ethereum shows higher concentration of code contributions among fewer developers, with Vitalik Buterin playing an outsized role in both coding and governance decisions.
Can open-source projects ever be fully decentralized?
Most large open-source projects naturally develop core contributors who dominate development. True decentralization requires intentional design—like formal voting, transparent proposal systems, and broad community participation.
What are better ways to measure blockchain decentralization?
Beyond code contributions, key metrics include node distribution, block propagation speed, validator diversity, and economic factors like token ownership concentration.
Does centralization threaten blockchain security?
Yes. High centralization—whether in development, mining, or staking—can make networks vulnerable to collusion, censorship, or coordinated attacks, weakening trustless operation.
Toward More Transparent and Inclusive Governance
While blockchain technology promises democratized control, the reality is that most networks still rely on informal hierarchies and concentrated expertise.
The UCL study doesn’t condemn this state—it simply reveals it. And from this awareness comes opportunity: to build more inclusive, transparent, and resilient governance models that reflect the ideals of decentralization.
Future improvements may include:
- On-chain voting for protocol changes.
- Quadratic voting to prevent whale dominance.
- Grants and incentives for diverse developer participation.
- Public dashboards tracking contributor activity and node health.
👉 See how next-gen platforms are redefining decentralization and user empowerment.
Final Thoughts
Decentralization isn’t binary—it exists on a spectrum. While Bitcoin and Ethereum have made historic strides in creating trustless digital economies, they still face challenges in distributing power equitably among their communities.
The path forward lies not in idealism alone, but in data-driven insights and structured governance reforms. As blockchain adoption grows, so must our commitment to building systems that are not just technically robust—but truly decentralized in practice.
By embracing transparency, fostering broader participation, and innovating governance mechanisms, the crypto ecosystem can move closer to fulfilling its original promise: a world where no single entity holds ultimate control.