Logos Collective Weekly Summary

Total Stake Inference

• "Modelling of Network Delays" document published: derives broadcast latency log(N)/α on a random regular graph network with linkdelay d+Exp(λ); simulation agreement for connectivity C≥8 — doc

Cryptarchia

• Checkpoint-based Fast Bootstrapping RFC: "Cryptarchia Protocol 1.0.2" subpage created with full revision details — subpage

Native Zones

• "Enable PoS Participation for Channels" RFC draft ready for review — RFC

Blend

• Session removal landed across the stack: core components #2798, proxy service #2800, edge service #2804, core service #2826, and safety-buffer + sessions removed from deployment settings #2827
• Overwatch Rust toolchain bumped to 1.96 (in-review) — Overwatch #135; consumer-side bump (in-review) #2828

Mantle

• Block-root calculation fix — #2797
• bounded_vec added to ledger tx builder inputs and outputs — #2791
• PoQ tests aligned with the session-removal RFC (in-review) — #2802

Mempool

• Mempool TxTracker implementation complete: tracks transactions across forks and serves leader sorted-by-tip txs (enables filler blocks and reduces inscription inclusion load from zones) (in-review) — #2746

Decentralized Sequencing

• Turn-to-write event for round-robin sequencers — #2808
• Sequencer timing endpoint exposed on node API (in-review) — #2816

Testing

• Concurrent cucumber option added for parallel scenario runs — #2803
• Zone setup made explicit in e2e (in-review) — #2792
• Mempool e2e coverage added — #2799
• Testing HTTP API removed in favour of testing-framework signals — #2817
• E2e test artifact handling improvements (in-review) — #2819

Node

• Block write acknowledgement in storage (in-review) — #2812
• Block apply gated on storage success (in-review) — #2813
• More crates migrated to the log targets crate — #2824

Circuits

• Progress towards consuming circuits as Rust crates instead of external binaries: GMP consistency logos-blockchain-circuits #31, documentation #32, prebuilt-as-default behavior #35, hardcoded test inputs fixed #36, session fix #34, expose missing files #37, env-var unification #38, rapidsnark crate abstracted #39, CI caching fix #40, Windows extension fix #42
• Circuit benchmarks merged on the node side — #2679
• Old circuits purged from logos-blockchain — #2829

Accounts

• Public and private transaction flows unified — #484
• LEE/LEZ rename underway: NSSA → LEE rename across repo (in-review) — #499; lez-related crates moved into a new lez/ folder (in-review) — #503
• PQ Kyber-768 encryption specs added to the encryption PR (in-review) — #474
• LEE key protocol specs draft started — #505

Logos Core

• Keycard and lez-module updates unified — #500
• Wallet FFI extended to expose generic transaction flows (in-review) — #491

Benchmarks

• Bench-regression CI workflow for crypto_primitives_bench merged — #494
• Sequencer benchmarks on Raspberry Pi 5 — standalone-sequencer pass complete, full-stack L1 measurements started (findings summary)

Bridging

• Sequencer-side Bridge Deposit flow merged — #493 (indexer side still to come)
• Bridge Deposit fault-tolerance follow-up (in-review) — #506

Deployment

• CI integration tests sped up — #498
• Protocol fixes found while updating LEZ specs merged — #504

Nimbos — Logos Blockchain Nim Client

• Mantle ledger merged: makes use of persistent datastructures to support efficient state sharing between forks — nimbos #46
• Genesis-from-deployment post-merge review fixes — nimbos #49
• Genesis Mantle tx vectors: optional types aligned with nim-results Opt, Poseidon2 Option bridge in hasher, Merkle leaf Opt[Item], stale std/options imports dropped (in-review) — nimbos #45

Integrate and dogfood capability discovery in Logos Delivery

• Service discovery bug fixes
• 6 test scenarios added for the network simulation; queries addressed on the forum post
• Logos Delivery integration and discovery setup; bugs identified and reported
• Code reviews and query responses

• Further bug fixes
• Refine test scenarios; continued dogfooding

• nim-libp2p and logos-delivery releases

Specify and implement extended DoS and exit node abuse protection

• Identified design gap in the spec where encryption cannot address the threat model (LIP PR 342, WIP); implementation requires no update as it relies on transport layer encryption

• Update spec with limitations and address reviewer comments
• Stake-weighted dogfooding setup

Integrate de-MLS into Logos Chat

• Integration work continued; focus on the simple welcome flow
• Public API on de-MLS side fixed; work progressing in the libchat repository

• Next steps to be defined after initial integration test succeeds

Rearchitecture Zerokit to support enum-based runtime configuration

• Merged PR6: stateful features, removed separated witness calculation, added new serialization trait, partial proof for rln-wasm
• Completed PR7: refactored all error types, added CalcWitness trait
• PR reviews conducted

• Continue PR reviews
• Begin PR8 and PR9 (builder pattern and FFI support)

Spike: LEZ-as-Registry feasibility

• Finished investigation. No further explorations due to time constraint.

Implement basic λAccount library

• Initial implementation of KeyPackage Registry

• Support multiple keypackages

Status integration progress

• Draft PR: logos storage for History Archives — all checks passing

• A bit more review (plus Copilot review)
• Maybe add a couple more tests (coverage is already good)
• Open PR for review

Transport over Mix progress

• Working on PR for encoding destination read behavior in the Sphinx payload (to be pushed today)
• Accompanying PR for the SPEC update will be pushed at the same time

• Back to the Mix Transport work

Hidden services specification and reference implementation

• Second iteration of the hidden services specification opened for review, with implementation-level details matching the reference implementation
• Continued work on the reference implementation based on the Arti tor client and adapted for our hidden services specification; now includes Ed25519 with key blinding, hidden service identifiers, time and epochs, and hidden service descriptors

• Spec to be amended to cover trivial deanonymization attacks uncovered during implementation
• Continue working on the second iteration of the specification and reference implementation

Release tests back online

• Release tests running in GCP with structured logs streaming to Cloud Logging — logos-storage-nim #1439
• For each run, logs are filtered by fixture and available directly from the workflow summary (screenshot)