What are blobs, and how can they make Layer 2 cheaper?
The Fusaka upgrade in December 2025 introduced PeerDAS, allowing nodes to sample-check only part of the blob data. The blob limit was later increased as well.
When the Dencun upgrade went live, the target was 3 blobs per block, with a maximum of 6. The Pectra upgrade in May 2025 raised this to a target of 6 and a maximum of 9.
The key thing to remember when managing funds: when comparing fees across Layer 2 networks, distinguish between the Layer 2’s own execution fees and the cost of submitting data to the mainnet. Both can change.
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