Logos Collective Weekly Summary

Mantle

• SDP Per-Service Uniqueness RFC merged: provider_id and zk_id unique within a service — logos-lips#371

Cryptarchia

• Channel Participation in Proof of Stake finished the research phase: RFC ready to merge logos-lips#364, implementation accepted (in-review) #3145

Total Stake Inference

• Mainnet-parameter inference-feedback evaluation completed (T=388800 slots, f=1/30): block references keep the inferred denominator substantially closer to true stake — at delays 10/20/29, 0.959/0.882/0.759 of true stake versus 0.705/0.399/0.168 chain-only; at delay 40, chain-only falls to ~0.101 while referenced configurations reach up to ~0.986 — doc
• Additional simulations and figures added to the "Modelling of Network Delays" document — doc

Permissionless Channel Sequencing

• Pivot to fully permissionless sequencing: Proposal VIII adopts a public per-channel lottery (new L1 op family, no committee), with a decision map and first-pass withdrawal-exit simulations covering exit-family comparison, lottery weight during pending exits, and concentration windows — doc

Cross-Zone Sequencing

• Abort Attribution reworked into a commitment-only + challenge-response design following the optimistic fair exchange principle: the happy path registers only hash commitments on-chain, with content disclosed on-chain only when a challenge is opened — doc
• Intent structure and hash computation fixed: canonical CrossZoneIntent serialization with SHA-256 commitments, so proposal_id = H(intent) serves as an openable commitment in disputes — doc

Anonymous Communications

• Bayesian sender-attribution attack built, completing the anonymity axis alongside stake inference, with three unlinkability measures: top-1 de-anonymisation, mean true-sender posterior, and posterior entropy — doc, doc

Blend

• Connectivity maintenance design rewritten for simplicity (WIP) — doc

Node

• Initial Block Download fix: AlreadyApplied errors ignored to handle the overlapped part of the chain — #3126
• Devnet validation completed: Initial Block Download, SDP no-garbage-collection behavior, service rewards distribution, and Tokenomics fees confirmed working as intended
• Channel thresholds accounted for in gas costs merged #3118; priority tip on the fund endpoint merged #3116
• SDP snapshot API endpoint added #3132; SDP declarations returned keyed by id #3133; discovered_peers on /network/info (in-review) #3135
• Recovery state moving to RocksDB (in-review): Overwatch runtime handle for state operators Overwatch#142, node recovery state #3134

Testing

• Testing Framework merged: snapshot store support logos-blockchain-testing#56, multiple apps in one test stack #57, unified cluster provisioning for scenarios, app deployments, and manual clusters #58
• Tokio-console profiling: cucumber integration #3129 and console-subscriber update #3136 merged, opt-in task naming in Overwatch Overwatch#141; Overwatch bump for tokio-console (in-review) #3148

Zone SDK

• Channel-update transactions unified with custom transactions merged — #3122
• L1 op identity and finalized slot surfaced on channel messages (in-review) — #3147

Logos Core Integration

• Node 0.2.1-rc.2 pre-release published — release, with module release steps added to the release checklist #3112
• Module join-blend fix merged logos-blockchain-module#53; explorer tab with copyable fields merged in the dashboard UI logos-blockchain-ui#33

Wallet UI

• Wallet synchronization flow rework merged — #585
• PDA account-id generation in the wallet FFI merged — #582
• Batched merkle proof fetching merged — #598

Sequencer

• Multi-sequencer committee support merged with adminConfigureChannel and a convergence demo — #616
• Request distribution across multiple sequencers opened (in-review) — #623

Accounts

• View-tag randomization for updated accounts (in-review) — #591
• Dummy-note padding via random seeding of nullifiers and commitments (in-review) #592; ciphertext padding, which closes the last large privacy leak (the ciphertext size), opened (in-review) #630

Cross-Zone

• Programs deployed at genesis instead of builtins (in-review) — #615
• Cross-zone generalization directions written up for team decisions — doc

Refactor

• CI sped up with a prebuilt docker image caching dependencies — #618

Nimbos

• SDP validator operations merged: declare/withdraw/active ops wired into the ledger, with registry, query API, and tests — nimbos#111
• Proof of Claim Groth16 verifier merged, with shared verification-key helpers and circuit/fixture tests — nimbos#120
• SDP module layout refactored to honour layering rules — nimbos#128
• Epoch state management (in-review) — nimbos#126
• Anonymous Leaders Reward Protocol ledger state and claim path opened (in-review) — nimbos#134
• SDP epoch snapshot mapping fixed to n+2 (in-review) nimbos#136; non-mutating SDP/channel state transitions via sink parameters (in-review) nimbos#137
• End-to-end Initial Block Download tested against a local Rust network

Implement LIONESS payload encryption for Sphinx

• Merged LIONESS payload encryption — nim-libp2p-mix #30
• Confirmed integration with logos-delivery works without any issues

Implement local reputation mechanism and research advanced DoS protection

• Explored Blend's PoQ + PoSel for Mix — precompute is PoQ's only real edge over RLN
• Researched a way to keep slashing with precomputed proofs

• Finalise the PoQ + PoSel for Mix analysis
• Draft the per-hop PoQ with slashing spec

Specify basic RLN membership management module API

• First draft of spec opened for review — logos-lips #373

Implement basic RLN membership management module

• Working logos-core module and UI, tested against testnet with corresponding journey — logos-docs #403

Validate service discovery protocol correctness in large-scale simulations

• IPv6 implementation PR merged in nim-libp2p
• Collaboration with DST on service discovery bug analysis
• PR reviews
• PR to fix bucket distance formula in RFC
• Investigation, refactoring, and bug fixes

• Continue service discovery investigation and bug fixes

Free-route mix simulator

• Completed the implementation of the free-route mix freeroutesim simulator for simulating the path selection and malicious-path problem — helps study the problem better in the mix protocol we are using.
• Improved documentation of the simulator and results.

• Continue research and study the problem in the context of anonymous download using the transport layer since the problem still exists there.

Logos Storage UI & Design System alignment

• Implemented the menu in the app
• Extended the button in Logos Design System to support icons
• Extended the textfield in Logos Design System to support validation
• Extended the frame in Logos Design System to support custom radius
• Extended the button icon in Logos Design System to support hover animation
• Extended the textfield in Logos Design System to support read-only attribute
• Aligned the Logos Storage UI with the Logos Design System

• Implement missing UI elements in Logos Storage UI from the Design

Migration to Docusaurus

• Meeting with EcoDev — they will migrate to Docusaurus, and a workflow for generic API generation is OK to implement.
• Created logos-storage/logos-storage-docs as a temp repo to centralise all Logos Storage documentation into while we wait for docs.logos.co to migrate to Docusaurus.
• Began setting up the repo as a Docusaurus site to make migration to docs.logos.co easier once it has been set up.