Celestia Blog

The Blockspace Race

We are excited to introduce the Blockspace Race, Celestia’s incentivized testnet program! The Blockspace Race is the largest ever testnet to support data availability sampling, with 700+ sampling light nodes. Throughout 2022, we shipped multiple testnets including Mamaki, the first to support data availability sampling. While these testnets proved

Introducing Rollkit: a modular rollup framework

Neutral and independent from Celestia, Rollkit serves as a community-led public good that empowers developers with the freedom to deploy throughout the modular stack and accelerate innovation

Celestia at ETHDenver

Gm modularists, Celestia Labs is heading to ETHDenver! We look forward to meeting many teams and builders during our time there. Be sure to find any of our team during events to reach out and discuss all things Celestia and modular blockchains. ETHDenverFor the main event, ETHDenver, we will give

Brewing up New Testnets: Introducing Arabica and Mocha

Modular testnets bring a faster erasure coding library that speeds up the encoder by 30x

Technology

Modular vs monolithic: a beginner's guide

You’ve probably heard it before. Celestia is the first modular blockchain network. But what is a modular blockchain, and how does Celestia fit into this? That’s what this post is all about - the brief version anyway. TLDR The first approach to building blockchains was a monolithic design

Announcements

Celestia raises $55M to launch modular blockchain network

Celestia is building a modular consensus and data network so that anyone can easily deploy their own blockchain with minimal overhead. Celestia’s new modular blockchain architecture is made to supercharge the scale and rate of Web3 innovation in the next decade.

Announcements

Meet Cohort One of Modular Fellows

28 individuals and teams were selected for the inaugural cohort of Modular Fellows. Spanning execution layers, rollup infrastructure, DeFi apps, and more, Cohort One is a promising seed in the fast-emerging Celestia ecosystem.

Events

Celestia in Colombia

¡Hola! The Celestia team has a packed agenda in Colombia with two main events happening in the two biggest cities in the country; Cosmoverse in Medellin and Devcon in Bogota. The team will first travel to Cosmoverse in Medellin, which takes place from September 26-28. Celestia is proud to be

Events

Celestia in Berlin

The Celestia team is traveling to Berlin for Berlin Blockchain Week to attend a variety of different crypto events. First up, the team will be attending Dappcon. Be sure to find any of our team over there with the Celestia T-Shirt on to talk all things Celestia and Modularity. The

Events

Celestia at Stanford

The Celestia team will be travelling to San Francisco to attend the Science of Blockchain Conference 2022 at Stanford. At the conference, a paper co-authored by all three Celestia founders: Mustafa Al-Bassam, Ismail Khoffi, and John Adler will be presented on Wednesday, Aug. 31, 2022 at 3:30 PM, led

Announcements

Introducing Modular Fellows

A program designed to empower modular builders with the right resources to build the future of scalable and sovereign blockchain networks.

Announcements

Introducing Sovereign Rollups to Developers

It’s been a short while since we deployed Mamaki, the Celestia testnet. With a successful launch, we rolled out our alpha data availability API and introduced data availability sampling - a key ingredient in Celestia’s scalable architecture. In the meantime, we introduced sovereign rollups to the world -

Events

Celestia in Seoul

Greetings, Seoul! We are very excited about the Celestia Labs team’s attendance in Seoul for HackAtom, BuidlAsia and Korea Blockchain Week. With back-to-back events spanning over two weeks, this will provide an amazing opportunity to connect with the team to chat about building modular. First up, our CEO Mustafa

Events

Celestia in Paris

Bonjour! The Celestia Labs team is heading to Paris for ETHCC week to share the vision of modularity. We couldn’t be more excited to talk about what motivates us to build modular at the various events. At ETHCC, two Celestia Labs team members will give talks: John Adler (CRO)

Technology

Rollups as Sovereign Chains

Most applications using Celestia as their consensus and data availability layer will be hosted on rollups. As a new layer 2 solution first proposed to increase transaction throughput, rollups may be the future home of almost all blockchain applications whether they use Celestia, Ethereum or another platform for consensus and

Technology

Q2 Engineering Update

It's been a whirlwind the past few months, first and foremost with the successful launch of the Mamaki testnet. The data availability nodes on Mamaki have been working as intended while pending upgrades, such as bad encoding fraud proofs, were fully rolled out. We conducted various other internal tests for

Announcements

Celestia Testnet Introduces Alpha Data Availability API

Today, we are excited to announce the launch of the new Celestia “Mamaki” testnet! This marks the next step in our road towards Celestia mainnet - a modular blockchain network that decouples consensus from execution. We are one step closer to enabling anyone to easily deploy their own blockchain, without

Technology

The Ethereum Off-Chain Data Availability Landscape

Blockchains need to guarantee data availability (DA), especially in the case of rollup and layer 2 (L2) chains. The blockchain data availability problem goes like this: participants of blockchain networks can get locked out from interpreting the state or further updating it when block producers advance the state of the

Announcements

Quantum Gravity Bridge: Secure Off-Chain Data Availability for Ethereum L2s with Celestia

tl;dr: This post introduces the Quantum Gravity Bridge project, a Celestia to Ethereum data availability (DA) bridge. From the onset of DeFi Summer in 2020, through the eruption of NFTs in 2021, and now an escalation of DAOs, the demand for blockspace on Ethereum has exploded. The deadly combo

Announcements

Celestia Launches Devnet

We are excited to announce that we have successfully launched Celestia devnet! On a cold November day in Berlin, our engineers were huddled in a conference room clad in Celestia hoodies. Suddenly, they erupted into cheers of elation. On their computer terminal windows were the following messages: Terminal output from

Technology

Clusters: how trusted & trust-minimized bridges shape the multi-chain landscape

We live in a multi-chain world. The idea that decentralized apps will all use the same shared smart contract blockchain is dead in practice. Ethereum is pivoting to a roadmap where apps have their own rollup chains, multi-chain ecosystems such as Cosmos and Polkadot are rising in popularity, as well

Announcements

Celestia MVP release: data availability sampling light clients

Today we’re thrilled to announce that we’ve shipped our minimum viable product (MVP)—a data availability sampling light client. This marks the first major milestone in our roadmap to build a universal consensus network allowing anyone to deploy their own custom blockchain in minutes. TL;DRData availability sampling

Announcements

LazyLedger is now Celestia

We’re excited to announce that we are henceforth rebranding LazyLedger as Celestia! Names are important. A good name communicates vision and inspires a community to rally behind it. Although LazyLedger is catchy and succinctly captures the minimal nature of our protocol, we wanted a name with more mass appeal.

Announcements

Celestia closes $1.5m seed fundraise from Interchain Foundation, Binance Labs, Maven 11 Capital, KR1, and others

We’re happy to share that Celestia Labs (incorporated as Strange Loop Labs in Liechtenstein), has closed a $1.5m strategic seed fundraise. Celestia Labs is building Celestia, a pluggable consensus and data availability layer, to enable anyone to quickly deploy a decentralized blockchain without the overhead of bootstrapping a

Announcements

Celestia: A Scalable General-Purpose Data Availability Layer for Decentralized Apps and Trust-minimized Sidechains

One of the highlights of this year’s Devcon 5 was optimistic rollups, a new scaling solution that uses the Ethereum base chain for data availability and enforcement of a two-way bridge of assets, with execution happening off-chain on layer two. In addition to allowing for increased throughput and decreased