# The Daily 99: Shared Sequencing

By [Early and Often](https://paragraph.com/@early-and-often) · 2024-04-01

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One thing I learned today:

In layer-2 roll-up protocols their is a component called a sequencer that in short:

*   orders transactions within a block
    
*   batches transactions together
    
*   submits batched transactions to the Ethereum Layer-1
    

However, there are a few concerns with sequencers in terms of the centralization effects that currently face layer-2s. For example, if there is a single sequencer it creates a single point of failure for the blockchain network, which poses security concerns for not only the layer-1 blockchain but also the users trying to transact on the L-2.

Shared sequencers could however help solve this problem by creating a roll-up agnostic network that multiple layer-2 blockchains could use to batch their transactions to the ETH L1. This could potentially improve efficiency for roll-ups to the layer-1 ETH network. By creating cross-roll up functionality users may be able to conduct transactions involving different assets using different roll-ups and never interact with the ETH layer 1.

A few projects working on this are: Espresso Systems, Radius Networks and Astria.

Affirmations:

I will run the 2024 NYC marathon under 4:00:00 and exceed my fundraising goal

I will continue to grow my blog by10% everyday using web3 tools

Gratitude:

Grateful for health

Miracle Morning:

Read: yes

Meditate: no

Make my bed: yes

Workout: yes (run)

Affirmations: yes

Gratitude: yes

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*Originally published on [Early and Often](https://paragraph.com/@early-and-often/the-daily-99-shared-sequencing)*