2025-10-06 Codex weekly

Week 40 2025 §

Replace bittorrent in status-go §

1. BlockExchange Performance and reliability

   • achieved:
     • Resolved peer discovery failure mode where refresh state remained locked after non-responsive peers
     • Implemented weighted random peer selection favoring less-loaded and more reliable peers for proportional load distribution
     • Validated system behavior under distributed workload using local Kubernetes cluster deployment
   • next:
     • Evaluate peer selection heuristics incorporating reliability metrics beyond load
     • Analyze load distribution characteristics under sustained concurrent file transfer on Kubernetes cluster
   • blockers:

2. Implement a Codex library so that clients can use Codex directly from their apps

   • achieved:
     • Completed the download feature by adding fetchManifest.
     • Implemented the remaining Data API features: network download, block/dataset deletion, manifest listing, and node space retrieval.
     • Fixed memory and pointer issues.
     • Began extracting the Go wrapper into a separate GitHub repository for easier integration (with tests and documentation).
   • next:
     • Finalize the Go wrapper repository.
     • Create an example project that demonstrates usage of the Go
   • blockers:

3. Integration with status-go

   • achieved
     • first raw draft of complete integration:
       • community owner: sharing history archives with both BitTorrent and Codex
       • community member: can choose from three modes of operations when downloading the the archives:
         • auto - the first comming, satisfying (in term of recency) archive index dicatates which channel (BT or Codex) will be used for fetching individual archives.
         • codex - BitTorrent archive index ignored
         • torrent - Codex archive index CID ignored
   • next:
     • testing/fixing bugs and fine-tuning the design to make sure nothing is missing
     • documenting
   • blockers:

4. NAT support

   • Extensions of Multiformats in nim-libp2p: PR opened https://github.com/vacp2p/nim-libp2p/pull/1734
   • Researched how nwaku utilizes both libp2p NAT traversal and UPnP.
   • Started implementation of the NAT and reachability detection using AutoNAT.

Research future work §

1. Altruistic Mode.

• Wrapped up our understanding of Swarm incentives;
• Ongoing research into existing solutions and recent publications related to privacy-first data storage/sharing as we rebuild our knowledge of related approaches.
• Document: Related work on privacy-first decentralized data storage/sharing
• Document: Summary of research findings into approaches for lightweight storage proofs with outsourcing erasure coding.
• Implementation: About 85% of the first prototype of the “outsourcing Reed-Solomon encoding” sub-project is implemented here