# The Scaling World This Week

By [The Layered Ledger](https://paragraph.com/@manishks) · 2023-06-02

---

Welcome! to The Layered Ledger.

A weekly newsletter covering exciting and interesting news from the world of scaling technologies.

### INDEX:

*   Rocket Pool deploys on zkSync Era
    
*   USDC launching on Arbitrum
    
*   Zero-knowledge to come to Optimism OP stack
    
*   Community-driven mods with OP Stack Mods
    
*   ZkEVM on Starknet with Kakarot
    

### Rocket Pool deploys on zkSync Era

![](https://storage.googleapis.com/papyrus_images/18ba956bf98e73f54a1231412a02c7b805d88a7d19797bbaef2e9c4533993bdd.png)

Ethereum staking provider Rocket Pool has been [deployed](https://twitter.com/TheBlock__/status/1664274754268991489?s=20) on the zkSync Era network. It is the first Ethereum liquid staking protocol to deploy on the newly launched network.

![](https://storage.googleapis.com/papyrus_images/963dd2680e242fa2d78da7dd2cf27a7d939e807c1c021431731862a5bcb60eb0.png)

Rocket Pool customers can now move their rETH quicker and cheaply using zkSync Era, resulting in a more user-friendly experience in DeFi apps.

Read more [here](https://www.theblock.co/post/232862/ethereum-liquid-staking-protocol-rocket-pool-deploys-on-zksync-era?utm_source=twitter&utm_medium=social).

### USDC launching on Arbitrum

![](https://storage.googleapis.com/papyrus_images/04ab985cd4fcac74745d2db3eb627f126d96cf5081e2e7987a24b99b443a6ad2.png)

Circle, the stablecoin issuer, will [offer](https://twitter.com/TheBlock__/status/1664270104237084672?s=20) USDC natively on Arbitrum, making it the official version in the Layer 2 ecosystem and replacing previously linked liquidity.

![](https://storage.googleapis.com/papyrus_images/71b0cef95395d916571d4c1035532cc9867d11eaa38e9d73b2712727ba295d36.png)

Circle noted that the benefits of native USDC include additional assistance to remove bridge withdrawal delays and the potential of institutional on and off-ramps.

The Ethereum-bridged version of USDC on block explorers will be dubbed "USDC.e," according to Circle.

Read more [here](https://www.theblock.co/post/232867/circle-says-its-launching-usdc-natively-on-arbitrum?utm_source=twitter&utm_medium=social).

### Zero-knowledge to come to Optimism OP stack

![](https://storage.googleapis.com/papyrus_images/ec368c662e5628cd7d5c5c7f453a460adeaffd47cc205cc7721334ea9c315005.png)

The OP Stack team recently opened an [RFP](https://twitter.com/jessepollak/status/1664349169073414147?s=20) to build a ZK validity prover for the OP Stack.

According to the RFP:

> **_Implementing a zero-knowledge proof (ZKP) for OP Chains is required to enable secure and low-latency cross-chain communication between L2 and L1 and between OP Chains._**

Also:

> **_A ZKP … that can prove the Optimism fault proof program acts as the foundation for a system that can prove any OP Stack based blockchain._**

For this Mission, the Optimism Foundation will accept up to three submissions.

Link to the RFP [here](https://github.com/ethereum-optimism/ecosystem-contributions/issues/61).

### Community-driven mods with OP Stack Mods

![](https://storage.googleapis.com/papyrus_images/321244c72e3a55439d5075a68d33451a4d507326d338fb091753521e7b29110c.png)

OP Labs [said](https://twitter.com/OPLabsPBC/status/1664306868213231616?s=20) it would start highlighting OP Stack Mods, which are changes or improvements to the OP Stack produced by members of the Optimism and Ethereum communities for review.

![](https://storage.googleapis.com/papyrus_images/485d78b044ab8fb03d777d702cb47323e46ef548c08bf037f29f2b23c571d50d.png)

OP Stack mods are interesting modifications made by independent developers. OP Labs has started highlighting some of the mods as potential OP Stack additions.

Read about it [here](https://blog.oplabs.co/introducing-op-stack-mods/).

### ZkEVM on Starknet with Kakarot

![](https://storage.googleapis.com/papyrus_images/8493ad2698eff1b688e1f06f2e402f05e587e83415645b59ee3e3e77555c27be.png)

New zk-EVM project Kakarot [completed](https://twitter.com/KakarotZkEvm/status/1664571575637626882?s=20) its pre-seed investment round.

Kakarot zkEVM is an Ethereum Virtual Machine (EVM) implemented in Cairo. It will allow interoperability between EVM-compatible code written in Solidity to run on Starknet without needing to rewrite.

Read about it [here](https://medium.com/kakarot-zkevm/kakarots-roadmap-from-enshrined-evm-on-l2-and-l3s-to-proving-l1-6615b1224274).

Till next time, have a great weekend!

[Subscribe](null)

---

*Originally published on [The Layered Ledger](https://paragraph.com/@manishks/the-scaling-world-this-week-6)*