Ethereum Infrastructure Consultancy

We build the infrastructure the ecosystem relies on

Core contributors to Ethereum's data availability layer, libp2p, and IPFS. We design and ship decentralized systems that endure.

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4+

Years Protocol R&D

5

Core Engineers

EF

Research Partners

libp2p

Core Contributors

What We Do

Deep expertise across the Ethereum stack

From protocol design to production deployment, we bring hands-on experience shipping infrastructure at the core of Ethereum's ecosystem.

Protocol Architecture

End-to-end design of decentralized protocols with cryptographic verification, incentive alignment, and fault tolerance built in from day one.

P2P Networking

Peer-to-peer network design and optimization. We wrote the first libp2p circuit-relay and shipped nim-libp2p with the Nimbus beacon chain.

Zero-Knowledge Systems

Design and implementation of ZK proof systems for data verification, storage proofs, and privacy-preserving protocols.

Data Availability

Led critical DAS networking research with the Ethereum Foundation. We design data availability solutions for L2s and rollups.

Token Economics

Incentive mechanism design for multi-stakeholder systems. Dual-token models, operator economics, and on-chain marketplace architecture.

Technical Due Diligence

Architecture audits, protocol reviews, and technical assessments for decentralized infrastructure projects and their investors.

About Us

Built at the core of Ethereum's infrastructure

Durability Labs was forged through years of building foundational infrastructure for the Ethereum ecosystem. Our team are core contributors to libp2p, IPFS, and the Nimbus beacon chain—the protocols that power Ethereum's consensus and networking layers.

We led critical Data Availability Sampling (DAS) research with the Ethereum Foundation, directly informing Ethereum's scaling roadmap. Our founder wrote the first libp2p circuit-relay implementation, and our CTO shipped production systems at Philips used by millions.

This depth of experience—from low-level P2P networking to consumer-grade product engineering—gives us a unique ability to design systems that are both technically rigorous and production-ready.

Ethereum Foundation Collaborators

Led DAS networking research that directly shaped Ethereum's data availability strategy and scaling roadmap.

Core Protocol Contributors

First libp2p circuit-relay, nim-libp2p shipped with Nimbus, and core IPFS contributions powering the decentralized web.

Production Systems Experience

15+ years shipping software at scale. From consumer electronics (Philips Hue, Sonicare) to decentralized networks serving millions.

Our Team

Engineers who ship

A tight-knit team with years of shared context building decentralized infrastructure together. Every member brings deep technical expertise and production experience.

Dmitriy Ryajov

Dmitriy Ryajov

CEO & Founder

Early IPFS & libp2p core contributor. Wrote the first libp2p circuit-relay. Built nim-libp2p for the Nimbus beacon chain. Led DAS networking research with the Ethereum Foundation.

Jessie Santiago

Jessie Santiago

COO & Co-Founder

MSc Electrical Engineering. NASA-funded robotics researcher. Crypto native since 2017. Co-host of TheBitcoinPodcast and HashingItOut. Leads community and growth.

Mark Spanbroek

Mark Spanbroek

CTO & Co-Founder

MSc Computer Science. 15+ years shipping production software. Led engineering at Philips (Hue, Sonicare). Implemented early MPC algorithms. Architects the Archivist marketplace.

Slava Doina

Slava Doina

Systems Engineer

Systems engineer specializing in low-level infrastructure, distributed systems optimization, and resilient network design for decentralized protocols.

Ben Bierens

Ben Bierens

Systems Engineer

Systems engineer focused on erasure coding, storage verification, and building the core infrastructure that powers Archivist's decentralized storage network.

Research

Advancing Ethereum's data availability layer

Our team has published extensively on data availability sampling, block propagation, and mempool design. Some earlier work was published under the Codex project name before the team transitioned to Durability Labs.

Sep 2023 · DAS P2P Ethereum

PeerDAS: A Simpler DAS Approach Using Battle-Tested P2P Components

Dmitriy Ryajov, Csaba Kiraly

Proposes a simplified data availability sampling design leveraging existing peer-to-peer networking primitives, reducing complexity while maintaining security guarantees.

Read on ethresear.ch
Nov 2023 · Scaling Blocks Ethereum

Big Block Diffusion and Organic Big Blocks on Ethereum

Csaba Kiraly, Dmitriy Ryajov

Analyzes how larger blocks can propagate efficiently through Ethereum's network using diffusion-based approaches, enabling organic block size increases.

Read on ethresear.ch
Mar 2024 · DAS Sampling Ethereum

LossyDAS: Lossy Incremental and Diagonal Sampling for Data Availability

Csaba Kiraly, Dmitriy Ryajov

Introduces a lossy sampling technique that incrementally builds confidence in data availability while reducing bandwidth requirements for light nodes.

Read on ethresear.ch
May 2024 · DAS Scaling Ethereum

FullDAS: Towards Massive Scalability with 32MB Blocks and Beyond

Csaba Kiraly, Dmitriy Ryajov

Presents a full data availability sampling design targeting 32MB+ blocks, pushing Ethereum's data throughput to new limits while preserving decentralization.

Read on ethresear.ch
Nov 2024 · DAS Analysis Ethereum

Full DAS Sampling Analysis

Csaba Kiraly, Dmitriy Ryajov

A comprehensive analysis of full DAS sampling parameters, trade-offs, and performance characteristics under various network conditions.

Read on ethresear.ch
Feb 2025 · DAS GossipSub Performance

Improving DAS Performance with GossipSub Batch Publishing

Csaba Kiraly, Dmitriy Ryajov

Proposes batch publishing optimizations for GossipSub to significantly improve DAS message propagation latency and throughput.

Read on ethresear.ch
Jun 2025 · DAS Mempool Sharding

A New Design for DAS and Sharded Blob Mempools

Csaba Kiraly, Dmitriy Ryajov

Introduces a novel DAS architecture with sharded blob mempools, decoupling data availability from consensus for improved scalability.

Read on ethresear.ch
Jun 2025 · Mempool Blobs Ethereum

On the Future of the Blob Mempool

Csaba Kiraly, Dmitriy Ryajov

Explores the evolution of Ethereum's blob mempool design, addressing scalability challenges and proposing forward-looking architectural improvements.

Read on ethresear.ch

Our Product

Archivist

Our flagship protocol—censorship-resistant, decentralized storage infrastructure with cryptographically verifiable durability.

Storage that can't be stopped.

Archivist delivers 11-nines durability through erasure coding, zero-knowledge proofs of retrievability, and a self-healing network of independent operators. Your data is encrypted client-side, dispersed globally, and verified cryptographically—not by trust, but by math.

Learn More Read the Docs

Zero-Trust Architecture

Client-side encryption. Operators never see your data.

11-Nines Durability

99.999999999% availability, verified by ZK proofs.

Erasure Coded

Efficient m-of-n encoding with automatic repair.

Globally Dispersed

No single point of failure. Across operators and jurisdictions.

Work With Us

Let's build something durable

Whether you need protocol architecture, infrastructure consulting, or a technical assessment—we're ready to help you ship with confidence.

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