2026-06-01 Logos Blockchain weekly

Logos Blockchain Weekly Update - 2026-06-01 §

blockchain:highlights §

• Sequencer-side Bridge Deposit flow merged on Logos Execution Zone (indexer side still to come) logos-execution-zone#493
• Logos Blockchain Circuits: witness binaries dropped — circuits now consumed as Rust crates; prover binaries still to be removed
• Nimbos Mantle ledger merged: makes use of persistent datastructures to support efficient state sharing between forks nimbos#46

blockchain:bedrock:research §

• blockchain:bedrock:research: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

• blockchain:bedrock:research:cryptarchia

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

• blockchain:bedrock:research:native-zones

  • “Enable PoS Participation for Channels” RFC draft ready for review RFC

blockchain:bedrock:eng §

• blockchain:bedrock:eng:blend

  • Session removal landed across the stack: core components logos-blockchain#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

• blockchain:bedrock:eng:mantle

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

• blockchain:bedrock:eng: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) logos-blockchain#2746

• blockchain:bedrock:eng:decentralized-sequencing

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

• blockchain:bedrock:eng:testing

  • Concurrent cucumber option added for parallel scenario runs logos-blockchain#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

• blockchain:bedrock:eng:node

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

• blockchain:bedrock:eng: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 logos-blockchain#2679
  • Old circuits purged from logos-blockchain #2829

blockchain:logos-execution-zone §

• blockchain:logos-execution-zone:accounts

  • Public and private transaction flows unified logos-execution-zone#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

• blockchain:logos-execution-zone:logos-core

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

• blockchain:logos-execution-zone:benchmarks

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

• blockchain:logos-execution-zone:bridging

  • Sequencer-side Bridge Deposit flow merged logos-execution-zone#493
  • Bridge Deposit fault-tolerance follow-up (in-review) #506

• blockchain:logos-execution-zone:deployment

  • CI integration tests sped up logos-execution-zone#498
  • Protocol fixes found while updating LEZ specs merged #504

nimbos §

• 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