Aztec decentralisation report, October 2026
In progress · readings on 1 of 28 days so far · dates in UTC
Summary In progress
The current month: figures to date, updated every hour.
As of October 28, it took 3 providers to run more than a third of Aztec's active sequencers (a Nakamoto coefficient of 3).
- The three largest providers ran 36.5% of active sequencers.
- 52 providers ran active sequencers; 19.2% of active sequencers were not linked to any provider (self-staked, or not yet matched), and the provider figures cannot count them.
- 3,232 sequencers were active.
- By stake alone it took 1,076 sequencers to pass a third, and the stake was as spread out as 3,232 equal stakes (an HHI of 3.1); because nearly every sequencer stakes the same amount, that mostly restates the size of the active set.
- BitBasic began recording Aztec on October 28, so there is no earlier month to compare with.
- The month is still in progress: the figures are to October 28 and change daily until the report closes on November 1.
Who runs the sequencers
Active sequencers per staking provider. Each value is the month's last reading, with the month's range and the change since the end of September 2026; the line shows each day.
Why providers come first: one provider can run many sequencers, so who runs them says more about decentralisation than how many there are. And nearly every sequencer stakes the same amount, so the stake figures below mostly restate the size of the active set.
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Providers
A staking company that runs sequencers for token holders. Aztec's staking registry links each sequencer key to the provider that registered it.
- 52
- Steady so far
-
Nakamoto coefficient
The smallest number of providers that together run more than a third of the active sequencers: enough to stall the network if they colluded. Higher is more decentralised.
- 3
- Steady so far
-
Top 3 providers' share
The share of active sequencers run by the three biggest providers.
- 36.5%
- Steady so far
-
Not linked to a provider
Active sequencers that aren't registered under any provider: self-staked, or not yet matched by BitBasic.
- 19.2%
- Steady so far
How stake is spread
Stake of the active sequencers, their own plus delegated. Each value is the month's last reading, with the month's range and the change since the end of September 2026; the line shows each day.
-
Active sequencers
In the active set: can be picked to propose checkpoints and to sit on a committee.
- 3,232
- Steady so far
-
Nakamoto coefficient
The smallest number of sequencers that together hold more than a third of the active stake. Every Aztec sequencer stakes about the same amount, so this is always just over a third of the active set; the provider figure says more.
- 1,076
- Steady so far
-
Top 10 stake share
The share of the active stake held by the ten largest validators.
- 0.3%
- Steady so far
-
HHI
The Herfindahl–Hirschman index: every validator's percentage share of the active stake, squared and added up. It runs from near 0 (stake spread thinly) to 10,000 (one validator holds it all); n validators with equal stakes score 10,000 ÷ n. Lower is more decentralised.
- 3.1
- Steady so far
How this report is made
Every hour, BitBasic takes Aztec's current set of active sequencers from the data it collects and works out the figures; the last reading of each day is kept as that day's figures. Days and months are in UTC.
Each figure's value is the month's last daily reading; the range is its lowest and highest daily value, and the change compares it with the last reading of the month before. A month is partial when some of its days have no reading, for example before BitBasic began recording Aztec, and the summary lists the days that are missing. The current month is in progress and changes every day; shortly after a month ends it is closed and its report is kept as it was.
Stake figures count each active sequencer's stake, its own plus delegated, as BitBasic last read it; stake outside the active set doesn't count. The Nakamoto coefficient is the smallest number of the largest holders that together have more than a third, because a third is enough to stall a proof-of-stake network; exactly a third is not counted as more.
Provider figures count active sequencers per staking provider, the same numbers as the providers page. Sequencers not linked to any provider count towards the whole but towards no provider, so the more of them there are, the less the provider figures can see. Days when provider links were still being read have no provider figures.
- Providers
- A staking company that runs sequencers for token holders. Aztec's staking registry links each sequencer key to the provider that registered it.
- Nakamoto coefficient (providers)
- The smallest number of providers that together run more than a third of the active sequencers: enough to stall the network if they colluded. Higher is more decentralised.
- Top 3 providers' share
- The share of active sequencers run by the three biggest providers.
- Not linked to a provider
- Active sequencers that aren't registered under any provider: self-staked, or not yet matched by BitBasic.
- Active sequencers
- In the active set: can be picked to propose checkpoints and to sit on a committee.
- Nakamoto coefficient (stake)
- The smallest number of sequencers that together hold more than a third of the active stake. Every Aztec sequencer stakes about the same amount, so this is always just over a third of the active set; the provider figure says more.
- Top 10 stake share
- The share of the active stake held by the ten largest validators.
- HHI (stake)
- The Herfindahl–Hirschman index: every validator's percentage share of the active stake, squared and added up. It runs from near 0 (stake spread thinly) to 10,000 (one validator holds it all); n validators with equal stakes score 10,000 ÷ n. Lower is more decentralised.