Ethereum is displaying indicators of pressure when dealing with data-heavy blocks weeks after its December Fusaka improve, elevating issues about whether or not the community is able to help increased information throughput from layer 2 blockchains, in keeping with new analysis from MigaLabs.
Key Takeaways:
- Ethereum is failing to reliably course of data-heavy blocks regardless of increased blob limits launched by the Fusaka improve.
- Blocks with 16 or extra blobs present sharply increased miss charges in contrast with regular community situations.
- If layer 2 demand rises, these elevated miss charges may threaten Ethereum’s community stability.
The Fusaka laborious fork was designed to develop Ethereum’s information capability by permitting layer 2 networks to submit extra “blobs,” a type of momentary information used primarily by rollups to publish transaction data to the primary chain.
The change was extensively seen as a step towards cheaper and extra scalable layer 2 exercise.
Ethereum Blocks With Greater Blob Counts Face Greater Miss Charges
Nevertheless, an empirical evaluation revealed by MigaLabs means that blocks carrying increased blob counts are considerably extra more likely to be missed by the community.
The analysis attracts on information collected since October 2025 and examines community habits earlier than and after Fusaka, in addition to two subsequent Blob-Parameter-Solely (BPO) updates that raised blob limits additional.
MigaLabs, which has beforehand collaborated with Lido DAO and the Cambridge Centre for Different Finance, discovered that Ethereum is just not coming near utilizing the expanded capability.
Regardless of will increase to the goal blob rely, most not too long ago raised to 14, the median variety of blobs per slot has really fallen because the first BPO replace.
Excessive blob counts of 16 or extra stay uncommon, showing just a few hundred instances out of greater than 750,000 noticed slots.
Extra troubling is what occurs when blob counts do spike. The research reveals that missed-slot charges rise sharply as soon as blocks comprise 16 or extra blobs.
Tomorrow: Fusaka
Ethereum’s second main improve this 12 months.
→ Function spotlight: PeerDAS – Unlocking as much as 8x information throughput. For rollups, this implies cheaper blob charges and extra space to develop.
Be taught extra. https://t.co/3TOda5KjY2 pic.twitter.com/sEfeiTamy9— Ethereum (@ethereum) December 2, 2025
Whereas the baseline miss price for slots with as much as 15 blobs hovers round 0.5%, miss charges at increased blob counts vary from 0.77% to as excessive as 1.79.
On the most noticed stage of 21 blobs, the miss price was greater than 3 times the community common.
These blobs are primarily submitted by giant layer 2 networks reminiscent of Arbitrum and Base, which depend on Ethereum’s information availability to function securely.
If demand from these networks will increase and excessive blob counts change into extra frequent, the elevated miss charges may compound and pose dangers to total community stability.
MigaLabs Urges Pause on Ethereum Blob Will increase Amid Rising Miss Charges
MigaLabs cautioned that whereas the pattern measurement for very excessive blob counts continues to be restricted, the sample is constant throughout all noticed information factors.
In its conclusion, the agency advisable towards any additional will increase to blob capability till miss charges at increased blob ranges return to baseline and actual demand begins to method current limits.
As reported, the Ethereum Basis has elevated post-quantum safety to a core strategic focus, forming a devoted Publish Quantum group and committing $2 million to the trouble.
Introduced by Ethereum researcher Justin Drake, the initiative can be led by Thomas Coratger alongside Emile, a contributor to leanVM.
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