Celestia Integration: Modular DA for Your Rollup

We integrate Celestia's modular DA layer for your rollup to reduce data publication costs and boost throughput. Instead of expensive blobs on Ethereum, data is sent to Celestia, which guarantees availability. With our integration, savings on DA can reach 99%, and throughput scales to tens of MB/s.

In practice: a DeFi client running a custom L2 on OP Stack faced rising blob fees with activity growth. After our Celestia integration, batch publication cost dropped 40x, and blob space competition disappeared. With a monthly DA budget of ~$12,000, costs fell to $150—a 98.75% reduction. Throughput went from 200 KB/s to 5 MB/s, handling 25x more transactions per block.

Why Celestia Beats Ethereum for DA

Ethereum blobs after EIP-4844 gave temporary relief, but throughput is limited to ~375 KB per block at 6 blobs. Under peak load, the blob market becomes competitive and prices spike. Celestia doesn't execute transactions—it only guarantees data availability, achieving ~8 MB/block (testnet) with plans to reach 1 GB/block.

Celestia is 1000x cheaper than Ethereum blobs with comparable security—making rollup architecture economical even under high load. Data from Celestia Labs documentation confirms these figures.

How DAS Works and Why It Matters

Data Availability Sampling is a mechanism where light nodes don't download entire blocks, but make random requests for small chunks. If all requests succeed, the block is available with high probability (cryptographic guarantee). Celestia uses 2D Reed-Solomon erasure coding: data is split into a matrix, encoded row- and column-wise—only 50% of any data is needed for reconstruction. This means data remains available even if some nodes are offline.

How to Connect Celestia to Your Rollup

1. Choose architecture—sovereign or settlement rollup.
2. Deploy celestia-node (full or bridge node for sequencer).
3. Integrate with DA client—for OP Stack this is alt-da mode, for Rollkit built-in support.
4. Verification—configure NMT proof verification via Blobstream on L1.
5. Testing—load simulation, fallback mechanisms.

// Example batch publication via celestia-node (Go) import ( "github.com/celestiaorg/celestia-node/api/rpc/client" "github.com/celestiaorg/celestia-app/pkg/namespace" ) rpcClient, _ := client.NewClient(ctx, "http://localhost:26658", authToken) ns, _ := namespace.From([]byte("myrollup123456789")) blob, _ := blob.NewBlob(ns, batchData) height, _ := rpcClient.Blob.Submit(ctx, []*blob.Blob{blob}, blob.DefaultGasPrice()) fmt.Printf("Data submitted at height: %d\n", height) 

How DA Costs Drop in Practice

A real project: average daily blob fees were $400 (4 blobs at 0.01 ETH each). After moving to Celestia, daily costs fell to $5—an 80x reduction. Throughput rose from 0.5 MB/s to 8 MB/s, removing transaction throughput constraints. Savings come from no auction (blob market) and low base byte cost.

Inclusion Verification: Namespace Merkle Proof

To let L1 smart contracts verify data inclusion in Celestia, NMT proofs are used. Blobstream (formerly Quantum Gravity Bridge) publishes Celestia data root commitments to Ethereum.

function verifyDataAvailability( uint64 celestiaHeight, bytes32 dataRoot, NMTProof calldata nmtProof ) external view returns (bool) { bool rootVerified = blobstream.verifyAttestation(nonce, tuple, binaryProof); require(rootVerified, "DataRoot not attested"); return nmtVerifier.verify(dataRoot, nmtProof, namespaceStart, namespaceEnd); } 

What's Included

• Analysis—choose architecture and DA strategy for your rollup.
• Deployment—install and configure celestia-node, bridge node.
• Integration—code for publishing and verifying data, fallback setup.
• Documentation—API specs, diagrams, configurations.
• Support—2 weeks of monitoring post-launch.

Our team of blockchain engineers has over 5 years of experience and has completed 20+ modular DA integrations. We work turnkey—from concept to production. According to Celestia Labs documentation, proper integration reduces DA costs by 1–2 orders of magnitude.

Contact us for a free consultation—we'll analyze your architecture and propose an integration plan. Get your Celestia integration started today and start saving on DA immediately.