Cove

This repo contains the backend verification¹ code for Cove, a simple, reliable, open-source contract verification built for an L2 centric Ethereum ecosystem.

Why?

The current state of smart contract verification has a lot of room for improvement:

• Verification often fails, with no useful feedback as to why.
  • There are ~200 total Foundry and Hardhat verification issues.
• Every Layer 2 chain has a different block explorer
  • Need to manually verify with each verification provider.
  • Verifying on every single chain doesn't scale for developers.
• Verified contracts are not linked to git commits.
  • Hard to verify the audited code is what’s actually deployed.
  • Hard to verify yourself if you don't trust the hosted verification.
• 1:1 mapping of verification providers to UIs
  • Anyone can spin up a novel frontend to interact with a smart contract, but not to view verified contracts

The State of Cove

• Verify contracts in forge projects with just a repo URL, commit hash, and contract address.
• Verify contracts on all supported chains with a single API call.
• Return decompiled bytecode, ABI, and Solidity for unverified contracts².
• More robust verification for all contracts (i.e. smarter bytecode matching and fallbacks).
• Save verified contracts to a publicly available database.
• Support other development frameworks such as Hardhat and Ape.
• Support other languages such as Vyper and Huff.
• Publish the Cove backend as a crate for easy local verification.
• Multi-file verification orders files logically.
• Automatically verify on Etherscan and Sourcify after successful verification.
• Support traditional methods of verification (e.g. standard JSON input).
• Build a first-party UI to showcase the functionality of Cove.

Footnotes

1. The frontend can be found in the ScopeLift/cove-frontend repo. ↩

2. Thanks to heimdall-rs by @Jon-Becker ↩