# EPF Cohort 6 - Week 0 updates
For the week 0 updates, I caught up with the kick-off call and went thru a few resources around EPF Cohort 6 as well.

I also attended the ACDT and ACDE calls this week and made notes.

I've been exploring the [project ideas](https://github.com/eth-protocol-fellows/cohort-six/blob/master/projects/project-ideas.md) proposed by client teams, and also have been looking at a few topics of my own.

## Areas of Research
I am currently looking into:
### History expiry (EIP-4444)
The tldr is that clients may stop serving historical headers, bodies and receipts. Currently, the plan is to stop serving pre-merge history, and in the short term look into a rolling window and dropping historical data before that point (82125 epochs, ~1 year)

I am currently tracking:

1. https://github.com/paradigmxyz/reth/pull/16702
2. https://github.com/erigontech/erigon/pull/15668

And looking for ways to contribute.

## Week 1 plans
1. Planning to continue research on 4444s.
2. Erigon's [Parallel Embedded Indexing ](https://github.com/eth-protocol-fellows/cohort-six/blob/master/projects/project-ideas.md#erigon-parallel-embedded-indexing) sounds very interesting and I am planning to go over this.

## References
- EIP-4444: [https://eips.ethereum.org/EIPS/eip-4444](https://eips.ethereum.org/EIPS/eip-4444)
- Torrents and EIP-4444: [https://ethresear.ch/t/torrents-and-eip-4444/19788](https://ethresear.ch/t/torrents-and-eip-4444/19788)
- Portal network: [https://ethereum.org/en/developers/docs/networking-layer/portal-network/](https://ethereum.org/en/developers/docs/networking-layer/portal-network/)
- Portal network and EIP-4444: [https://github.com/ethereum/portal-network-specs/issues/308](https://github.com/ethereum/portal-network-specs/issues/308)
- Distributed storage and retrieval of SSZ objects in Portal: [https://ethresear.ch/t/distributed-storage-and-cryptographically-secured-retrieval-of-ssz-objects-for-portal-network/19575](https://ethresear.ch/t/distributed-storage-and-cryptographically-secured-retrieval-of-ssz-objects-for-portal-network/19575)
- How to raise the gas limit (Paradigm): [https://www.paradigm.xyz/2024/05/how-to-raise-the-gas-limit-2](https://www.paradigm.xyz/2024/05/how-to-raise-the-gas-limit-2)