Add EigenDA , native Bridging

docs/what-is-celo/using-celo/eigenda.md

@@ -0,0 +1,86 @@
+---
+title: EigenDA
+description: Scaling Data Availability for the Next Generation of Web3 Apps
+---
+
+
+# EigenDA on Celo
+
+Celo is now an Ethereum Layer 2 (L2) designed for fast, low-cost, mobile-first transactions. As part of this upgrade, Celo integrates **EigenDA**, a high-throughput, decentralized data availability (DA) layer built on **EigenLayer**.
+
+This integration,[first proposed on the Celo Forum](https://forum.celo.org/t/proposal-eigenda-integration/6382),solves one of the core challenges facing modern L2s: how to keep transaction fees low and predictable without compromising security or scalability.
+
+---
+
+### Why Celo Uses EigenDA
+
+Before Ethereum’s [EIP-4844](https://eips.ethereum.org/EIPS/eip-4844), L2s posted transaction data as calldata, which often accounted for more than 90% of their total fees. While EIP-4844 introduced cheaper blob-based data storage, blob fees can fluctuate significantly based on network congestion.
+
+For a platform like Celo,focused on stablecoins, payments, and access in low-bandwidth environments,fee volatility is not acceptable. EigenDA addresses this by providing a scalable, low-cost alternative to Ethereum’s native blob space.
+
+---
+
+### How EigenDA Works
+
+[EigenDA](https://www.eigenda.xyz) is a modular, off-chain data availability layer. It uses a network of **EigenLayer** operators who store transaction data and attest to its availability. Instead of storing full transaction data on Ethereum, Celo stores only a **DA commitment**,a cryptographic reference to data stored on EigenDA.
+
+This is implemented according to the [Optimism AltDA specification](https://github.com/ethereum-optimism/optimism/blob/develop/specs/alt-da.md), which defines how rollups can integrate non-Ethereum DA layers in a secure and interoperable way.
+
+---
+
+### Benefits of EigenDA on Celo
+
+* **Lower Fees**
+  By offloading transaction data storage from Ethereum, Celo can maintain sub-cent transaction fees,even during peak demand.
+
+* **Higher Throughput**
+  Internal benchmarks have shown EigenDA’s potential to reach up to 10 MB/s of data throughput, supporting high-volume dApps and global-scale usage.
+
+* **Secure and Decentralized**
+  EigenDA leverages Ethereum validators via EigenLayer’s restaking mechanism, aligning security incentives across layers.
+
+---
+
+### EigenDA v2 (Blazar Upgrade)
+
+Celo’s current testnets,[Alfajores](https://docs.celo.org/network/alfajores) and [Baklava](https://docs.celo.org/network/baklava),now run on **EigenDA v2**, also known as the *Blazar upgrade*. This was announced as part of the [Eclair testnet launch](https://forum.celo.org/t/roadmap-update-eclair-testnet-launch/6553), which also introduced modular stack improvements including OP Stack compatibility and Rust-based client infrastructure.
+
+#### Key improvements in v2:
+
+* **Near real-time confirmations**
+  Allows rollups to reference blocks without waiting for Layer 1 finality, reducing latency from minutes to seconds.
+
+* **Improved throughput and reliability**
+  More efficient chunking, request routing, and horizontal scalability of DA nodes.
+
+* **Full AltDA support**
+  Enables native integration with modular L2 architectures like Celo’s.
+
+---
+
+### Developer Notes
+
+* Celo’s testnets use the **EigenDA Holesky testnet**.
+* Integration follows the [Optimism AltDA spec](https://github.com/ethereum-optimism/optimism/blob/develop/specs/alt-da.md) for compatibility with the OP Stack.
+* You can find testnet contract addresses on [EigenLayer’s testnet deployment page](https://www.eigenlayer.xyz).
+
+---
+
+### What This Means for the Celo Ecosystem
+
+The integration of EigenDA strengthens Celo’s position as a high-performance, low-cost Layer 2. It enables:
+
+* **Predictable gas fees**, crucial for payments and stablecoin use cases
+* **Support for high-throughput apps**, including DeFi, gaming, and social platforms
+* **Infrastructure grants**, including the **Eigen Foundation’s first strategic grant** awarded to the **Celo Foundation**, supporting development and ecosystem adoption
+
+---
+
+### Learn More
+
+* [Celo Forum: EigenDA Proposal](https://forum.celo.org/t/proposal-eigenda-integration/6382)
+* [Celo Forum: Eclair Testnet Launch](https://forum.celo.org/t/roadmap-update-eclair-testnet-launch/6553)
+* [EigenDA Overview](https://www.eigenda.xyz)
+* [Optimism AltDA Specification](https://github.com/ethereum-optimism/optimism/blob/develop/specs/alt-da.md)
+* [EigenLayer Testnet Deployments](https://www.eigenlayer.xyz)
+

sidebars.js

@@ -65,6 +65,16 @@ const whatIsCeloSidebar = [
             label: "Celo Token",
             id: "what-is-celo/using-celo/protocol/celo-token",
           },
+          {
+            type: "doc",
+            label: "EigenDA",
+            id: "what-is-celo/using-celo/protocol/eigenda",
+          },
+          {
+            type: "doc",
+            label: "Native Bridging",
+            id: "what-is-celo/using-celo/protocol/native-bridging",
+          },
           {
             type: "doc",
             label: "Escrow",