Logos Collective Weekly Summary

Integrate and dogfood capability discovery in Logos Delivery

• Dogfooding, updates, and fixes
• Corrected lower bound logic in the RFC — PR 322
• Bug fixes in nim-libp2p — PR 2337

• Continue dogfooding and debugging

Specify and implement extended DoS and exit node abuse protection

• Stake-weighted Mix RLN DoS protection spec finalized — LIP PR 327
• Mix RLN Spam Protection Plugin updated for stake-weighted rate limiting

• Update Logos-Delivery to use stake-weighted rate limit
• Begin basic reputation spec

Specify and implement cover traffic generation

• Analyze impact on cover traffic due to stake-weighted RLN for DoS protection

Modify Sphinx payload encryption to preserve payload integrity

• Draft PR for Lioness block cipher port to Nim, referencing a Rust implementation; draft spec in progress

• Address review comments and thorough self-review

Specify multi-steward and advanced group management protocol

• Specification LIP PR 318 ready for review

• Merge the PR

Implement de-MLS multi-stewards

• Reworked architecture, fixed bugs, and prepared codebase for integration and upcoming features

• First iteration of integration
• Key scheduling and MLS service restructure

Implement MVP payment protocol

• Payment streams on-chain component implemented — lez-payment-streams (NEW)
• Spec updated, still in draft — LIP PR 299

• Implement the off-chain component of payment streams
• Integrate with Store and Logos Delivery

Total Stake Inference

• TSI Analysis report: Appendix E "Simulation diagnostics for inferred-stake closure" completed; all plots remade — draft
• "Total Stake Inference under Stake Privacy: The Case of Ouroboros Crypsinous" submitted to CCS 2026 (blockchain track) — paper

Blend Research

• Session-removal RFC moved to Draft — RFC
• Post-Quantum Primitive Candidates for the Blend Protocol document finalized and ready for review — doc

Blend

• Locked notes excluded from auto-funding and SDP signing of Blend activity messages: tx-builder #2629, wallet #2631, wallet-service #2637
• Migrate Blend log targets to new log targets crate (in-review) — #2659

Mantle

• Channel deposit input notes correctly accounted — #2625
• Include pk when encoding LeaderClaimOp — #2628
• Leader proof verification fix: now properly verifies the proof (in-review) — #2655

Testing

• Port allocator race fix: avoid deleting fresh port claims — #2630
• Genesis inscription override path fix after config-path changes — #2636
• E2e test for Blend SDP activity messages — #2639
• leader_claim test: wait for tx inclusion instead of balance change — #2641
• Cucumber test improvements for "fork join preserve wallet state" CI — #2652
• Mock todo API/test removal (in-review) — #2657
• Local child-process cleanup: wait for stopped processes (in-review) — logos-blockchain-testing #54
• Nightly hack action: install gh properly — #2642; create issues assigned to last commit owner on error — #2646
• Let cargo-hack run to completion to collect all errors — #2643

Testnet

• Auto-publish logos-blockchain-node Docker image on pushes to master — #2640
• Post 0.1.3-rc.4 release checklist fixes — #2658
• 0.1.3-rc.4 release candidate published — release
• Testnet Stake Distribution Event — stream

Node

• Log targets crate introduced — #2651
• CryptarchiaParameter added to genesis block — #2174
• Tracing: respect env filter when sending logs to loki/gelf/otlp — #2632
• Unify dependencies into Cargo workspace (in-review): lower-level crates #2649, remaining crates #2653
• Skip genesis SDP Op proof validation, fixing node start issues (in-review) — #2656
• Orphan download: avoid panic when no peers available (in-review) — #2648

Circuits

• LB Circuits as libraries: PoQ FFI exposed on poq-sys crate; build system added for fetching compiled library artifacts (WIP) — branch

Accounts

• NPK generalized to multiple accounts: single key pair can control a family of private accounts, unblocking private donations — #447
• Signature refactor for Keycard support merged: BIP-340 32-byte message constraint relaxed — #457
• Multiple-owners reworked: epoch and ratcheting removed, PDA identifier fix (in-review) — #449
• Strong-type PrivacyPreservingCircuitInput with per-account enum (in-review) — #462
• Diversify private PDAs by identifier to enable private donations to multisig accounts (in-review) — #464
• Privacy commands for keycard: extended to programs beyond auth-transfer (in-review) — #461

Indexer

• Simple indexer FFI merged — #427
• Indexer module basic structure merged — logos-execution-zone-indexer-module #2 (NEW)
• Fix clock transaction validation in indexer merged — #458
• Indexer mock service: emit new blocks every 30 seconds — #463

Explorer UI

• Real Indexer RPC communication implemented in QT Explorer UI (in-review) — lez-explorer-ui #1

Deployment

• v0.2.0-rc3 release tagged and deployed on Stage 2 — release

LIONESS & transport over Mix

• Completed the LIONESS specification for Mix payload encryption — provides strong guarantees for payload integrity (also tracked in hackmd)
• Improved the LIONESS wide-block cipher implementation
• Implemented and documented a more general version of the Sphinx packet format; started working towards the transport layer
• Extracted libp2p mix example to a separate repo to test it over QUIC (vs. default TCP) — potential improvements/fixes to discuss in AnonComms meeting
• Working through spec and Haskell reference implementation in transport-over-mix

• Draft first primitive transport (chunking layer) over Mix (WIP)
• Work out the "compressed address space" proposal for Logos Mix
• Implement and document a working transport layer abstraction over Mix
• Review and help with the LIONESS Nim implementation
• Continue on hidden services over Mix: Ed25519 with key blinding, DOS/spam prevention, client auth and restricted discovery mode

NAT Traversal progress

• Finalised the UDP experiment: most NATs are Address and Port-Dependent Filter (APDF) as documented in this paper — consequence: a client mode is needed for the DHT
• Updated the NAT Traversal strategy to address feedback and describe the public-IP retrieval strategy
• Dial-back address in AutoNAT v2 merged in libp2p — observed address available as part of the callback for configuring announce address
• DHT client mode implementation in progress
• Updated Nix configuration in Logos Storage Nim

• Finish DHT client mode implementation
• Implement the NAT Traversal strategy

Cryptography collaboration

• Implemented arkworks-compatible point compression (Nimbos required it; Logos Blockchain uses proof compression)
• Discovered issues with the Logos Blockchain Poseidon hash implementation and helped address them