Fiber Dev Log 2025-12-25

[gpBlockchain]

CKCon2025 @ Chiang Mai

Updates

Improvements

Dashboard

• Fiber Dashboard backend updates to align with new frontend requirements, including: table structure changes, functional modifications, and refactoring.
  • Related PRs: https://github.com/cryptape/fiber-dashboard/pulls?q=is%3Apr+is%3Aclosed+

Architecture & Logic

• Decoupled the payment flow into an independent Payment Actor to improve modularity and maintainability.
  • Payment actor #986
• Refactored CCH architecture, improving internal structure and correctness.
  • Refactor CCH order with FSM and actions #971
• CCH input verification improvements to address missing validation checks.
  • feat(cch): add expiry, preimage, and invoice validations #998

Observability & Debugging

• Added more logs to locate the issue where CKBChainActor processes messages significantly slower than expected.
  • Logging actor handle message execution time #1011
• Added more logs to locate the issue where the tlc is_waiting_ack status is incorrect.
  • Logging channel ack state #1013

Payments & Routing

• Implemented trampoline routing, enabling more flexible and scalable payment paths.
  • Oneway channel and trampoline routing #1012
• Enforced invoice status checks before settlement to prevent premature preimage disclosure to the watchtower.
  • feat: enforce invoice status checks before settlement #961

Fixes

• Optimized payment routing algorithm performance.
  • Fix the performance issue in path finding #999
• Fixed a panic when signing the funding transaction.
  • fix: handle funding transaction signing failure #1003
• Fixed channels stuck in NegotiatingFunding state after restart.
  • fix: abort funding after restart when stuck in negotiating funding #997

In Pipeline

• New landing page design for Fiber Dashboard
• Planning on Fiber DevRel improvements includes demos and SDK
• Add a status reflecting full settlement completion of the on-chain commitment transaction to the close_flag of the Channel.
• Continue investigating CkbChainActor issue
• Continue investigating the tlc is_waiting_ack status is incorrect
• Further work on trampoline routing