AIP: BOLD - permissionless validation for Arbitrum

[pedrob]

I vote FOR this proposal in Tally

Regarding BOLD:

We are now in 2025, the year in which Arbitrum must reach stage 2 of roll-up decentralization.

Since the TGE, Arbitrum has made immense progress toward decentralization, and achieving permissionless validation (meaning allowing proposers and challengers of state assertions) is a fundamental step toward greater security for its users.

@Arbitrum

Therefore, passing this AIP and implementing BOLD to secure Arbitrum One and Nova effectively enables permissionless validation, marking a key milestone for Arbitrum chains to be recognized as Stage 2 Rollups, as part of Arbitrum’s journey to full decentralization.

Something to note is that I do not have a technical background, so my vote should not be interpreted as an endorsement of having conducted a security check on the code to be implemented. Nevertheless, I base my vote on the trust placed in the excellent team of developers at OCL and the review conducted by highly trusted actors.

@openzeppelin

Given the serious security implications of allowing permissionless disputes, we are pleased and impressed with the level of thoroughness with which the Offchain Labs team and Arbitrum community has discussed the risks of BOLD.

We explored concerns with the handling of confiscated funds as well as the future need to monitor and update BOLD parameters as economic conditions change. The algorithm has been well thought-out and should work as expected. However, it does depend on economic incentives behaving under present economic conditions that are subject to change. We recommend monitoring the economic factors of BOLD once in production and be ready to make adjustments as needed.

@krst

After reviewing the executable associated with the proposal, we can confirm that it matches the described upgrade and that no undisclosed changes are taking place.

Regarding Infura:

Infura is one of the most active infrastructure providers, with an amazing track record. It makes sense to whitelist a Nova validator operated by them.