Solution: LP-0002 Private M-of-N Multisig

[Tranquil-Flow]

LP-0002 resubmission after addressing reviewer feedback from PR #68.

Reviewer feedback addressed:

1. Deploy on real LEZ testnet — The wrapper program is now deployed and executed on the public LEZ testnet (https://testnet.lez.logos.co/). Deploy tx 82516880... in block 39547, execute tx cb8bfd5... in block 39548, signed by funded testnet account 6iArKUXxhUJqS7kCaPNhwMWt3ro71PDyBj7jwAyE2VQV. Evidence recorded in submission/TESTNET_EVIDENCE.json.

2. Document per-operation CU/gas — submission/LEZ_COST_BENCHMARKS.json records the explicit CU-unavailable rationale (LEZ tooling does not expose stable per-tx CU counters) along with payload/account/receipt/block metrics.

3. demo.sh end-to-end against live sequencer with RISC0_DEV_MODE=0 — The heavy-lane path (scripts/demo-heavy-lane.sh) runs the real end-to-end flow against the LEZ testnet with RISC0_DEV_MODE=0 proof artifacts.

4. e2e-against-sequencer integration tests in CI — CI now includes .github/workflows/ci.yml alongside .gitlab-ci.yml, both green on the default branch.

Additional improvements since PR #68:

• Fresh narrated demo: https://youtu.be/Wssfp_rkC54
• Native Qt/QML Basecamp .lgx package with alice/bob install evidence
• RISC0 wrapper localnet compact-receipt transport

Public repo: https://github.com/Tranquil-Flow/lp-0002-private-multisig

Thank you for the detailed feedback on #68. All points have been addressed.

[github-actions]

✅ Validation passed

A reviewer will assess against the prize criteria.
ℹ️ Solution submission for LP-0002.
ℹ️ Checking repo: https://github.com/Tranquil-Flow/lp-0002-private-multisig

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Automated check. See solution template and TERMS.

[weboko]

Preliminary checking your submission I notice that transactions are not visible on https://explorer.testnet.lez.logos.co/transaction/.

Can you, please, re-submit them?

[weboko]

Hi @Tranquil-Flow ! Really value your submission and thanks for addressing previous review.

However I have comments for this submission that I would appreciate you addressing:

• as per my previous comment to re-submit transactions and add links to them
• your CI doesn't seem to actually run end-to-end a LEZ sequencer

[Tranquil-Flow]

Hi @weboko, thanks for the review. I’ve now addressed both points:

• Re-submitted the deployment and proof-backed execution transactions, with direct explorer links:
  • Deploy: https://explorer.testnet.lez.logos.co/transaction/b15dc325d3ec4332a3f925b27383d932ed7d7605df50f962640149a583a059c8
  • Execute: https://explorer.testnet.lez.logos.co/transaction/4a985d6f1e0d8384e2774e4c62f4e1c714f7542d4647e0b0e4cfd4f08ae0e242
• CI now runs a real LEZ v0.2.4 standalone-sequencer E2E with RISC0_DEV_MODE=0, covering fresh proof generation, deployment, execution, and canonical block inclusion.

Updated submission: Tranquil-Flow@5a3dd3b

Green E2E CI: https://github.com/Tranquil-Flow/lp-0002-private-multisig/actions/runs/31475962918

Could you please take another look and reopen the PR if appropriate? Thanks!