# 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:** 30

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**Author:** ![benedikt-espresso](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.aztec.network/benedikt-espresso/32/211_2.png) [@benedikt-espresso](https://forum.aztec.network/u/benedikt-espresso)\
**Post date:** [May 24, 2023, 5:23am UTC](https://forum.aztec.network/t/request-for-proposals-decentralized-sequencer-selection/350/30 "2023-05-24T05:23:13Z")

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> [@\[Proposal\] Sequencer Selection: Irish Coffee](http://forum.aztec.network/t/proposal-sequencer-selection-irish-coffee/483):
>
> Decentralized Sequencing Proposal: Irish Coffee Proposed by: [Espresso Systems](https://www.espressosys.com/) team This proposal is an adaptation of the [Whisk-y proposal](http://forum.aztec.network/t/whisk-y-should-we-use-whisk-for-sequencer-selection/365). It replaces the Single Secret Leader Election (SSLE) with a VRF, making it significantly more lightweight and efficient. The protocol is inspired by [Chia/PoSAT](https://arxiv.org/abs/2010.08154) but we are replacing the need for a VDF with Ethereum itself. That is, Ethereum serves as a timing and a beacon service. Future versions of Ethereum’s beacon might actually rely on a VDF themselves. …

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