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John Wiegley

# Proposal to upgrade the EVM RPC canister

Repository: `https://github.com/internet-computer-protocol/evm-rpc-canister.git`

Git hash: `ef17e552b84644ce84ac6a755bc5f9c36beafe02`

New compressed Wasm hash: `c8c423ef81e75c1131e40615d94839d4d976718612a7216ad5b9427f716928aa`

Upgrade args hash: `6005397a2ddf2ee644ceaca123c9afbd2360f0644e7e5e6c4ac320a5f7bd4a82`

Target canister: `7hfb6-caaaa-aaaar-qadga-cai`

Previous EVM RPC proposal: https://dashboard.internetcomputer.org/proposal/135308

---

## Motivation

The Ethereum JSON-RPC provider `Cloudflare` always returns an error (`{ "jsonrpc": "2.0", "error": { "code": -32603, "message": "Internal error" }, "id": 1 }`) for any call,
while `Ankr` recovered its IPv6 connectivity and seems reliable again.
The goal of this proposal is to swap the order of those two providers so that the providers for *Ethereum Mainnet* are ordered as follows:
* `Ankr` becomes the second default JSON-RPC provider.
* `Cloudflare` is that last one to reduce the likelihood of being selected (removing it completely would be a breaking change from an API standpoint)

## Release Notes

```
git log --format='%C(auto) %h %s' c3592e02905e68dba671b055468fea97612c0374..ef17e552b84644ce84ac6a755bc5f9c36beafe02 --
ef17e55 fix: replace Cloudflare with Ankr (#414)
d04edb8 chore: re-order default Sepolia providers  (#413)
 ```

## Upgrade args

```
git fetch
git checkout ef17e552b84644ce84ac6a755bc5f9c36beafe02
didc encode -d candid/evm_rpc.did -t '(InstallArgs)' '(record {})' | xxd -r -p | sha256sum
```

## Wasm Verification

Verify that the hash of the gzipped WASM matches the proposed hash.

```
git fetch
git checkout ef17e552b84644ce84ac6a755bc5f9c36beafe02
"./scripts/docker-build"
sha256sum ./evm_rpc.wasm.gz
```


Upgrade NNS Canister: 7hfb6-caaaa-aaaar-qadga-cai to wasm with hash: c8c423ef81e75c1131e40615d94839d4d976718612a7216ad5b9427f716928aa