[Execution] Design a solver auction with sealed commitments and deterministic settlement

[fishonamos]

Problem

Open route competition permits copying, last-look manipulation, and selective execution by solvers.

Required work

Implement commit-reveal bidding, eligibility checks, deterministic winner selection, collateral policy, and settlement evidence.

Acceptance criteria

• Bids cannot be changed after commitment.
• Tie-breaking is deterministic and manipulation-resistant.
• Non-reveal and invalid-settlement behavior is penalized.
• Auction replay reproduces the selected outcome.

[TheShnider]

@TheShnider has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi. I have reviewed this issue and would like to work on it.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @TheShnider to this issue.

[Vivianndev]

@Vivianndev has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hii, I'd love the opportunity to resolve this issue. Please assign to me, thanks

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[ARAPHI20]

@ARAPHI20 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi Maintainer! I’ve carefully reviewed the issue and acceptance criteria and have a clear understanding of what needs to be done. I’m confident I can deliver a clean, well-tested, and maintainable solution. I’d love the opportunity to take this on and contribute to the project. Thank you!

ℹ️ Repo Maintainers: To accept this application, review their application or assign @ARAPHI20 to this issue.

[okaforwisdom664-lgtm]

@okaforwisdom664-lgtm has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Please assign me to this case

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[aojomo]

@aojomo has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi maintainer Please I would like to work on this issue

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[Xoft31]

@Xoft31 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

The requirements are clear from my review, and I’d like to take this issue forward. My approach would be to keep the implementation focused while ensuring adequate testing and compatibility with the existing functionality

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Xoft31 to this issue.

[olayiwola-web]

@olayiwola-web has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I can take this. I’ll implement commit-reveal bidding with locked commitments, eligibility checks, deterministic manipulation-resistant winner selection, collateral and penalties for non-reveal or invalid settlement, plus settlement evidence so an auction replay reproduces the same outcome.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @olayiwola-web to this issue.