# Request For Proposals: Decentralized Sequencer Selection

**URL:** <https://forum.aztec.network/t/request-for-proposals-decentralized-sequencer-selection/350>\
**Category:** Aztec\
**Tags:** rfp, sequencers\
**Created:** [May 9, 2023, 4:12pm UTC](https://forum.aztec.network/t/request-for-proposals-decentralized-sequencer-selection/350 "2023-05-09T16:12:32Z")\
**Posts on this page:** 1\
**Showing post:** 28

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**Author:** ![Anon](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@Anon](https://forum.aztec.network/u/Anon)\
**Post date:** [May 23, 2023, 11:17pm UTC](https://forum.aztec.network/t/request-for-proposals-decentralized-sequencer-selection/350/28 "2023-05-23T23:17:56Z")

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> [@\[Proposal\] Based Rollup - Simple, Decentralized, Tokenless, Sequencerless L2](http://forum.aztec.network/t/proposal-based-rollup-simple-decentralized-tokenless-sequencerless-l2/479):
>
> Based Rollup. An L1 contract that allows anyone to submit valid L2 blocks. crLists may be submitted on L1. Blocks are built by L1 searchers/builders from a mempool. crLists are transaction lists required for inclusion in a future block. They may be compressed, e.g. [[to, sig], [nullifier, proof], [nullifier, proof]] -\> compress([[[to], [nullifier], [nullifier], proof]]) Fees for crLists may be calculated to target a minimum block production rate. Network risk is minimized compared to alter…

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