Celestia

Introducing Fibre: 1Tb/s of blockspace

V8 went live on Mainnet yesterday, bringing single-signature cross-chain transfers and ZK-verified messaging to networks built on Celestia.

100M+ transactions, $20B+ in volume, 85+ chains @relayprotocol scaled their crosschain payments product to massive adoption, then built their own chain on Celestia to settle it all at ~$0.005 per order. A case study in product-first chain design: blog.celestia.org/relay-chain-a-…

Built using Evolve (@ev_stack) SDK and Celestia for blockspace, @xomarket is a permissionless conviction market protocol where anyone can create a market on any topic, with AI-first resolution and a decentralised jury as fallback. XO's architectural differentiators enabled by this stack: - runs its AI oracle, LS-LMSR liquidity engine, and creator fees as native protocol logic - avoids competing with unrelated activity for blockspace when live events drive spikes in volume - inherits decentralised security without bootstrapping its own validator set Today the team announced a $6M seed round led by @20vcFund and @picuscap, with @cbventures, and others. XO has done ~$300M in trading volume since winning Celestia's Mammothon hackathon in 2025.

800K+ collectors, 8M+ NFTs from Disney, Marvel, Star Wars and more are processed by @veve_official, an application on top of @CollectChain, built using the Evolve (@ev_stack) SDK and using Celestia for blockspace. @CollectChain is a purpose-built chain for licensed digital collectibles, enforcing royalties and licensing rules onchain. By using @ev_stack for execution and Celestia for blockspace, @CollectChain: - gets 250ms finality for the transactions it processes, - retains control over execution, fees and its own upgrade schedule, and - inherits decentralised security guarantees by posting its block data to Celestia without the unnecessary operational, engineering, or financial bulk of bootstrapping a validator set, among other benefits. The article below describes an architecture that allows products to spend less time operating network infrastructure, and more time building for its users.

Celestia's engineering roadmap is compressing. V8 (including Hibiscus) is live on Mocha, with Mainnet following next, bringing single-signature cross-chain transfers and ZK-verified messaging to networks built on Celestia. The following protocol upgrade after V8 will bring 3-second block times and 32 MiB blocks, expanding blockspace capacity in a single step upgrade that will clear the path for Fibre — the highest-throughput blockspace protocol, targeting 1 GB/s throughput in its first iteration.

We just wrapped up our team on-site. The entire Celestia team came together for a week of deep work on protocol and strategy. We are energised, heads down and building towards making Celestia’s Vision 2.0 a reality. We want to be better at sharing our work openly as it happens. To make sure we follow this through, we’ve brought on a new Head of Marketing who will help us do exactly that.

We are looking for a Head of Product. If you want to build products that enable every market to come onchain, apply here: jobs.lever.co/celestia/b2a99…

On a 100 validator network, separating compute from blockspace saves ~$492,000/year in infrastructure costs alone, and that's before counting the engineering time you get back. @viet_nguyen breaks down the full math on why bundled validator architecture breaks at scale:

Together, these two features make networks building on Celestia feel more unified, without sacrificing the sovereignty that empowers them to build with purpose and simplicity. Read more about the full contents of the upgrade here: blog.celestia.org/upcoming-celes…

ZK Interchain Security Module: Previously, cross-chain message verification relied on trusted multisig validators. ZK ISM replaces that with Groth16 cryptographic proofs, giving high-value applications a trust-minimised alternative for verifying messages across chains.

Celestia's next upgrade, Hibiscus (V7), goes live mid-March. Hibiscus introduces 2 features that expand cross-chain interoperability for networks on Celestia: - single-signature cross-chain transfers - cryptographic proof-based message verification Here's how it works:

Relay Chain is posting under the namespace `relay-data`. View their activity on Celenium here: celenium.io/namespace/0000…

@RelayProtocol chose the only stack that could handle their network’s requirements: → A chain fully customised for crosschain payment settlement → Millisecond-latency execution with @sovereignxyz → Abundant and verifiable blockspace with Celestia Billions of dollars in volume by millions of addresses across 86+ chains will soon be settled on Relay Chain, demanding blockspace only Celestia can provide.

Relay Chain launches on Celestia

This only works at Celestia Fibre scale. A database serving thousands of AI agents per second generates massive transaction volume. On most infrastructure today, this is economically impossible. At 1 Tbps, the cost per byte drops low enough that fraction-of-a-cent payments can be economically viable. Read more about how OnchainDB works and why it needs Celestia here: blog.celestia.org/onchaindb-a-ca…

OnchainDB turns databases into pay-per-query markets. Every read and write becomes a micropayment. AI agents can autonomously discover, query, and pay for data: historical prediction market odds, social graphs, financial feeds, sensor networks. At scale, that can mean thousands of queries per second, per database. Each one a transaction.

Within the next decade, most economic activity will be machine-to-machine. AI agents trading with each other at API speed, making autonomous decisions about data, compute, and services. And @OnchainDB is one example of how these markets will work: