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Config computation in Reth

In the last week's update, I was talking about network config computation. I managed to implement this now in Reth, which, as an execution client, only needs this config to work, so outside of some testing and code clean-up, Ephemery in Reth seems to be working: PR.

Lighthouse genesis state

I looked into the state generation tool that is used by the Ephemery genesis build script. With the knowledge about the proccess, I looked into how the genesis state and the tooling around it looks like in Lighthouse. I found some functions that could help me with creating a new BeaconState according to some information about the Eth1 block and the execution payload header. These structures would still need to be created, filled with information that is fixed or given in the genesis.json file, and also manually filled with the validators, which need to be in a special format according to Lighthouse and ssz specs. This seems doable, but could still take some time, so I'm going to start working on it and see how much time it takes. There still is the option to temporarily run my own node and download the genesis information from there or to download the ssz from github releases, but both of these would require to quite significantly change the download function or to create another one, so I would prefer to spend the time trying to implement the generation functionality first.

Lighthouse and Reth syncing demo

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Both Lighthouse and Reth can be launched using the "ephemery" option. Basic information about the current iteration is logged for the user.

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Lighthouse got successfully synced, Reth is in the process of syncing.

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Teri
Hi, I'm a dev!
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Ethereum Fellowship Protocol 4: Final Update

Ephemery

Nov 16, 2023
Ethereum Fellowship Protocol 4: Update 15 & 16

The last part of the fellowship was slower for me, as I got busy with university. In the time that I had, I’ve been investigating even closer how the code around genesis state acquirement works. The main part seems to be separated to two parts - the first one works with state in the more general point of view, it takes information from storage if possible, provides functionality like checkpoint sync if specified by the user using an option, and others. The other part is the genesis state acquirement itself - the state can be included in the binary or, like in the case of Holesky, downloaded using a url to a server supporting Beacon API. The url download option checks the downloaded genesis using ssz file checksum and genesis validators root.

Nov 12, 2023
Ethereum Fellowship Protocol 4: Update 12 & 13

With the new testnet Holesky, clients approached the problems with its large ssz state by adding the possibility of downloading the genesis from a url at runtime. This functionality has currently three limitations, as implemented in Lighthouse:

Oct 16, 2023
Ethereum Fellowship Protocol 4: Update 10 & 11

The main focus of the last two weeks was exploration of how exactly Lighthouse processes and further works with the configuration data. My goal is to integrate the concept of Ephemery into the process as seamlessly as possible without rewriting any code that already exists or changing the little tasks that need to be performed in the process of setting Ephemery up and have already been extensively thought out and programmed.

Oct 2, 2023
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