November 2025 marked a period of significant advancement in the Blockchain component of the Logos project, with major strides in both foundational infrastructure and service-layer protocols. From progress on critical cryptography audits and improvements to zero-knowledge proving performance to expanding testnet capabilities, the month demonstrated strong momentum across research, development, and production readiness. This report details the key developments in Bedrock infrastructure, Bedrock Services, and the pathway toward testnet deployment.

Bedrock

Research

In November, the Cryptography Audit for Data Availability was completed and issues that were identified were fixed. A Cryptography Audit for Blend was begun and is currently underway. Work on ZKVM benchmarking continued with updated comparisons, including new results placing Risc0 at roughly 0.3 TPS on an RTX 4090. The month concluded with Poseidon2 compression updates that cuts proving times in half.

The Service Declaration Protocol evolved throughout November, beginning with simplifications to active messages - such as disregarding trailing bits in the opinions vector and removing unnecessary self-positive opinion checks. Later updates focused on correcting retention-period and inactivity-period calculations within the SDP garbage-collection logic.

Development

November brought substantial progress to the SDP and ledger stack. Early work replaced a mock mempool with a real implementation and removed deprecated backends. The team also merged the implementation of Service Participation rewards and transitioned the signature system to proper PKCS-compliant ZkSign keys, fully removing DummyZkSignatures across the codebase. Test infrastructure was aligned with KMS usage, enabling nodes participating in testnet simulations to authenticate with ZK IDs and ed25519 keys.

Mid-month development introduced garbage collection and reward distribution logic for the SDP, along with session-mismatch fallbacks for commitment retrieval. By the end of the month, stale-transaction rejection behavior had been introduced, and the new SDP Wallet Adapter was underway.

Bedrock Services

Research

The Blend protocol specifications were expanded at the start of the month with more precise descriptions of how data and cover messages are generated, queued, and released. Additional work reviewed the relationship between controllability and observability in control systems and how these concepts map to anonymity guarantees in AC systems. By mid-month, simulations validated analytical results showing that maximum anonymity is achieved when random time-interval graphs remain connected. The month closed with further research into corrupted-receiver and corrupted-sender scenarios, outlining the boundaries of anonymity even in adversarial conditions.

Development

Throughout November, the Blend network implementation underwent significant stabilisation work. Early fixes ensured correct Merkle path generation and accurate handling of old-session tokens. Subsequent updates focused on clean shutdown behavior for core services and improving test consistency for session transitions. By the end of the month, reward-calculation logic was under review, including proof validation and the integration of Blend activity proofs.

Road to Production, Testnet and Tooling

November saw updates to ensure the Logos Blockchain “Nomos” repository aligned with the new nomos-circuits release structure. An automated ZK development setup script was introduced, and accompanying Dockerfiles were updated to match the new circuit-download script. Work also progressed on the node-side Block Explorer, with missing endpoints and data structures merged, rounding out support for the upcoming testnet.

The testing framework underwent major development throughout the month. Early updates reorganised core directories and introduced a powerful expectation-evaluation system with parallel workload execution. Following this, the team built workloads for publishing inscribe transactions and blobs and expanded expectations to verify blob-publication behavior. Work also continued on both Docker Compose and Kubernetes runners.

Conclusion

The advancements of the past month make it clear that the Logos Blockchain is maturing rapidly across all critical dimensions - from cryptographic foundations and zero-knowledge infrastructure to service-layer protocols and testnet readiness. As we move forward, the focus remains on hardening production systems, completing audits, and delivering a robust, privacy-preserving blockchain infrastructure capable of supporting the broader Logos vision. With Bedrock's foundational layer stabilising and Bedrock Services approaching operational readiness, the team is well-positioned to deliver a sovereign, scalable, and censorship-resistant technology stack that empowers communities to coordinate and transact with confidence. The work completed this month brings us closer to realizing a truly decentralized future - one built on rigorous research, principled engineering, and a commitment to user autonomy.