Iris Coleman
Jan 13, 2026 15:55
Celestia announces Fibre Blockspace, a data availability protocol targeting 1 terabit per second across 500 nodes – 1500x its original roadmap target.
Celestia just dropped what could be the most ambitious throughput claim in crypto history. The modular blockchain network announced Fibre Blockspace on January 13, 2026 – a new data availability protocol that hit 1 terabit per second during testing across 498 nodes.
That’s not a typo. One terabit. Per second.
The Numbers Behind the Hype
According to Celestia’s announcement, Fibre represents a 1,500x improvement over the throughput targets outlined in their original roadmap from roughly a year ago. The team achieved the benchmark using a cluster of GCP machines distributed across North America, each running 48-64 vCPUs with 90-128GB RAM connected via 34-45Gbps network links.
The protocol runs parallel to Celestia’s existing L1 data availability layer, giving users a choice. Standard L1 blockspace handles blobs up to 8MB with no minimum – ideal for growing rollups. Fibre targets power users with a 256KB minimum and 128MB maximum blob size.
What Makes Fibre Different
At the core sits ZODA, a new encoding protocol that Celestia claims processes data 881x faster than KZG commitment-based alternatives used by existing DA protocols. Users encode blob data, distribute pieces directly to validators, collect confirmation signatures, then submit everything to the L1 where fees get paid.
The architecture means users can recover their blob from any third of honest validators – a meaningful redundancy guarantee for high-stakes applications.
The “Everything Markets” Thesis
Celestia’s framing here is worth noting. They’re positioning this as the infrastructure for markets that simply can’t exist at current blockchain speeds: real-time ad auctions triggered by page views, pay-per-crawl systems for AI agents scraping the web, HTTP-level micropayments between autonomous agents, and 24/7 secondary markets for tokenized real-world assets.
Whether these use cases materialize remains speculative. But the throughput claim – roughly one transaction per second for every human on earth, as Celestia puts it – would fundamentally change what’s buildable onchain.
Road to Mainnet
The code is now public with instructions for spinning up a local testnet. Next step: deployment to Celestia’s Arabica testnet for developer access, with mainnet rollout following additional testing.
For traders watching the modular blockchain thesis play out, the Fibre announcement signals Celestia’s intent to compete directly with high-throughput alternatives. The real test comes when actual rollups start pushing production workloads through the protocol – benchmark conditions rarely match real-world chaos.
Image source: Shutterstock
Source: https://blockchain.news/news/celestia-fibre-protocol-1tb-throughput
