Cardano's Voltaire Governance: Complete Specification and Research Program
This technical report provides a complete specification of Cardano's Voltaire governance system, enacted via the Chang hard fork in September 2024, and outlines a comprehensive research program to optimize its mechanisms through formal modeling, simulation, and game-theoretic analysis.
Original paper licensed under CC BY 4.0 (http://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
Imagine a massive, digital city called Cardano. For years, this city was run by a small group of architects who held the keys to the city hall. They decided when to fix the roads, how to spend the public treasury, and when to upgrade the city's operating system. But in September 2024, the city held a historic meeting called the Chang hard fork, and the keys were handed over to the citizens themselves. This new era is called Voltaire.
This paper is like a giant, detailed instruction manual and a research roadmap for this new way of running the city. The authors, Nimrod Talmon and Oghenekaro Elem, have done two main things: they wrote down exactly how the new city government works (so anyone can build it or check it), and they proposed a plan to study how to make it work better in the future.
The Three-Legged Stool of Power
In the old days, one group held all the power. In Voltaire, power is split among three groups to keep things balanced, like a sturdy three-legged stool. If one leg wobbles, the others keep it standing.
- The People's Voice (DReps): Imagine every citizen holding a ticket (their ADA coins). Instead of everyone shouting at once, citizens can give their ticket to a Delegated Representative (DRep). These are like elected neighborhood ambassadors. There are about 551 active ambassadors right now, and they vote on most things. However, there's a catch: a few super-popular ambassadors hold a huge chunk of the votes. The top 10 control nearly half of the active voting power!
- The City Builders (SPOs): These are the Stake Pool Operators, the people who actually keep the city's lights on and the roads running. They are the mechanics and engineers. They get to vote on things that affect how the city runs, like upgrading the software or changing the size of the blocks on the road. They act as a safety check; even if the people want a change, the builders can say, "Whoa, that's too heavy for our trucks," and stop it.
- The Constitution Keepers (CC): This is a special committee of 7 people (the Constitutional Committee). Think of them as the city's supreme court or referees. They don't care about popularity or how much money you have; they check if a new rule breaks the city's Constitution. The Constitution is a rulebook that says things like "no one can be censored" and "the total money supply is fixed at 45 billion." The Committee ensures no one breaks these golden rules.
How the City Votes
The paper explains that there are seven types of proposals the city can vote on, ranging from "Hey, let's change a fee" to "Let's rewrite the Constitution."
- The Rules of the Game: To pass a big change, you usually need a super-majority. For example, changing the Constitution needs 67% of the DReps to say "Yes," plus 51% of the SPOs, plus the approval of the Constitution Keepers.
- The Treasury: The city has a giant piggy bank called the Treasury, holding about 1.47 billion ADA (roughly $235 million as of early July 2026). People can propose to take money out to fund projects, but there's a limit. The Constitution says you can't take out more than 350 million ADA in a single year. This is called the Net Change Limit (NCL). It's like a speed limit on spending so the city doesn't run out of cash.
- The "No-Confidence" Button: If the Constitution Keepers (CC) start acting badly, the people can vote to fire them all at once. This is called a No-Confidence motion. It requires 67% of DReps and 51% of SPOs to agree. If it passes, the CC is gone, and the city freezes on certain decisions until a new committee is picked.
The Research Roadmap: What's Next?
The authors aren't just describing the system; they are worried about how it might break or get stuck. They suggest a four-step research program to figure out how to tune the city for the best results.
- The "Governance Kernel": They built a tiny, simplified computer model of the city. It's like a video game simulator where you can change the rules and see what happens without risking real money.
- The Simulation: They want to run this simulator with different types of "agents" (computer programs acting like people). Some agents are smart, some are lazy, and some are bad actors trying to buy votes.
- The Reality Check: They plan to feed real data from the Cardano blockchain into the simulator. For instance, they noticed that 94% of people who delegate their votes never change their mind, even if their representative stops voting or starts acting weird. This is called "commitment bias." The simulator will test if this is good (stability) or bad (stagnation).
- The Optimization: The goal is to find the "sweet spot." Should the voting threshold be 60% or 70%? Should the deposit to propose a change be 500 ADA or 100,000 ADA? The paper suggests using math to find the perfect balance between security (stopping bad guys), speed (getting things done), and fairness (making sure everyone is heard).
What the Paper Says "No" To
The authors are very clear about what this system is not.
- It's not a magic fix: They explicitly state that this is a "first step." The system is complex and has trade-offs.
- It's not purely off-chain: They focus only on the on-chain rules (the code that runs automatically). They don't cover the messy, off-chain arguments that happen on forums before a proposal is even made.
- It's not solved: The paper does not claim that Cardano has the perfect governance system. In fact, it highlights big risks:
- Centralization: A small group of top DReps holds too much power.
- Low Participation: Only about 15.7% of the total money is actively being used to vote. If only a tiny fraction of people vote, a small group could hijack the system.
- Gridlock: If the rules are too strict, the city might get stuck and nothing ever changes.
The Bottom Line
This paper is a call to action for scientists, engineers, and curious teenagers. It says, "We built a giant, self-updating machine for democracy. Here is the blueprint. Now, let's use math and simulations to figure out how to tune the dials so it doesn't crash, doesn't get stolen, and actually works for everyone."
The authors suggest that by treating governance like an engineering problem—testing, simulating, and optimizing—we can build better digital cities. But they admit that right now, we are still in the lab, running simulations, and watching the numbers to see if the city can survive its own rules.
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