Celestia Activates Fibre, Enabling Direct Rollup Data Transmission to Validators

According to The Defiant, modular data availability network Celestia has launched its Fibre service, opening a direct channel for rollups to upload data to validators. Fibre is Celestia’s new data publishing protocol that enables clients to upload blob data in shards to Fibre servers operated by validators—and download data from those servers—bypassing traditional relay-based transmission paths. As outlined in Celestia’s documentation, Fibre applies erasure coding to each blob, allowing readers to reconstruct the full data from a subset of encoded rows. The consensus layer only records payment information and blob commitments; the actual data payload is transmitted directly between clients and Fibre servers. Each server’s storage budget is determined by its stake in the network.