chore: butterflynet reset

[hanabi1224]

Summary of changes

Successful CI check: https://github.com/ChainSafe/forest/actions/runs/25374223480/job/74405101164#step:6:923

Set dummy upgrade epoch to 400, computed states from Forest and Lotus agree with each other

# Forest
2026-05-05T12:25:11.522629Z  WARN forest::chain_sync::tipset_syncer: Validating block [CID = bafy2bzacecgvq44kwmuau4yrtbpa4lbehcprnxdgxj7anq4wpij5m3qyihpxk, PARENT_STATE = bafy2bzaceanq6kpzlrnngiphljot3gnn6xkd5cofn4cuxalqthih4ae4prpww] in EPOCH = 402 failed: Validation error: Validation error: Parent state root did not match computed state: bafy2bzaceanq6kpzlrnngiphljot3gnn6xkd5cofn4cuxalqthih4ae4prpww (header), bafy2bzacedz4b5fr3da6ca6ywcnxvjcej4h4toex5ehkqazijgfhihsspz3yk (computed)

# Lotus
2026-05-05T20:25:30.314+0800    ERROR   chain   chain/sync.go:1007      failed to validate tipset: validating block bafy2bzacecgvq44kwmuau4yrtbpa4lbehcprnxdgxj7anq4wpij5m3qyihpxk:
    github.com/filecoin-project/lotus/chain.(*Syncer).ValidateTipSet.func1
        /home/me/git/lotus/chain/sync.go:603
  - 1 error occurred:
        * parent state root did not match computed state (bafy2bzaceanq6kpzlrnngiphljot3gnn6xkd5cofn4cuxalqthih4ae4prpww != bafy2bzacedz4b5fr3da6ca6ywcnxvjcej4h4toex5ehkqazijgfhihsspz3yk):
    github.com/filecoin-project/lotus/chain/consensus.CommonBlkChecks.func3
        /home/me/git/lotus/chain/consensus/common.go:119

Changes introduced in this pull request:

Reference issue to close (if applicable)

Closes

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation. All new code adheres to the team's documentation standards,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.

Outside contributions

• I have read and agree to the CONTRIBUTING document.
• I have read and agree to the AI Policy document. I understand that failure to comply with the guidelines will lead to rejection of the pull request.

Summary by CodeRabbit

• Chores
  • Finalized Butterflynet v18.0.0 release artifacts and updated network genesis parameters and download endpoints.
  • Updated bundle/manifest references so the network uses the finalized v18 actor set for synchronization and metadata.

[coderabbitai]

Walkthrough

Updated Butterflynet release artifacts and genesis references: manifest and actor CIDs for v18.0.0 were replaced, the actor bundle catalog now points to the v18.0.0 manifest CID, and Butterflynet genesis constants (GENESIS_CID, GENESIS_URL, GENESIS_URL_ALT) plus a FireHorse height mapping were updated.

Changes

Butterflynet release + genesis update

Layer / File(s)	Summary
Manifest (actor CIDs & bundle) build/manifest.json	butterflynet entry version changed from v18.0.0-rc1 → v18.0.0; bundle_cid, manifest.actors CIDs (system → datacap, eam, ethaccount), and actor_list_cid updated to new values.
Actor bundle catalog src/networks/actors_bundle.rs	ACTOR_BUNDLES entry for butterflynet switched to use the v18.0.0 manifest CID (replacing the v18.0.0-rc1 CID).
Genesis constants src/networks/butterflynet/mod.rs	GENESIS_CID replaced with new hard-coded CID; GENESIS_URL and GENESIS_URL_ALT updated to point to the new .car.zst artifacts and corresponding Lotus commit path.
Network height mapping src/networks/butterflynet/mod.rs	HEIGHT_INFOS: FireHorse epoch mapping changed from height 960 with bundle v18.0.0-rc1 to height 1440 with bundle v18.0.0.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• ChainSafe/forest#6947: Modifies butterflynet artifacts and genesis identifiers (related manifest/GENESIS updates).
• ChainSafe/forest#6047: Previously updated butterflynet GENESIS and actor bundle references in the same codepaths.

Suggested reviewers

• sudo-shashank
• LesnyRumcajs

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Title check	❓ Inconclusive	The title 'chore: butterflynet reset' is vague and does not clearly convey the specific technical changes made. While it references 'butterflynet', it lacks detail about what 'reset' entails, and a developer scanning history would not understand that this updates genesis constants, manifest CIDs, and actor bundle versions to production v18.0.0.	Consider a more descriptive title such as 'chore: update butterflynet genesis and v18.0.0 actor bundle' to better reflect the specific nature of the configuration updates.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch hm/butterflynet-reset

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch hm/butterflynet-reset

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@src/networks/butterflynet/mod.rs`:
- Line 46: Replace the .unwrap() call on the hard-coded CID returned by
Cid::from_str(...) with .expect("hard-coded CID must parse") to follow the
project's error-handling convention (matching GENESIS_URL/GENESIS_URL_ALT
usage); additionally, fix GENESIS_URL_ALT by either updating the embedded commit
hash e9eff3125a849bcc66bba3d0bddc64bce077698c to a commit that actually exists
in the filecoin-project/lotus repository or remove the GENESIS_URL_ALT fallback
entirely if you cannot verify a valid commit, ensuring the constant GENESIS_URL
remains the primary source.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 482ff0e6-e9d5-42c3-b18e-1ed2a59036b3

📥 Commits

Reviewing files that changed from the base of the PR and between 420a5ab and a65126c.

📒 Files selected for processing (1)

• src/networks/butterflynet/mod.rs

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 64.12%. Comparing base (6979e17) to head (78fe39a).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
src/networks/butterflynet/mod.rs	60.00%	2 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
src/networks/actors_bundle.rs	90.30% <100.00%> (ø)
src/networks/butterflynet/mod.rs	71.26% <60.00%> (+0.33%)	⬆️

... and 8 files with indirect coverage changes

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