Architecture Upgrade: Mantle Network Migration to Ethereum Blobs Begins
Get ready for a stronger, more secure Mantle. The Layer 2 network has officially begun a major Mantle Network migration, shifting its core data availability (DA) layer from EigenDA to native Ethereum blobs. This strategic move transitions Mantle from a Validium setup toward becoming a full ZK rollup secured directly by Ethereum. For users, this isn’t just a backend update—it’s a fundamental upgrade in security guarantees, ensuring transaction data is as tamper-proof as the Ethereum base layer itself.
This Mantle Network migration was made possible by Ethereum’s successful Fusaka upgrade in December 2025, which increased blob capacity by 8x. With more space and lower costs on Ethereum, Mantle can now afford to post its data directly to the base chain. This evolution marks a pivotal step in the network’s maturity, aligning it with the gold standard for Layer 2 security while continuing to leverage its existing ecosystem partnerships.
Why the Mantle Network Migration Matters for Users
The shift is a game-changer for security. Previously, as a Validium, Mantle stored transaction data off-chain with a third-party provider (EigenDA). Now, by posting data to Ethereum blobs, the network inherits Ethereum’s full security and censorship-resistance. Your transaction records are protected by the same robust consensus that secures billions in DeFi.
Importantly, the Mantle Network migration doesn’t sever existing ties. The network will maintain its partnership with EigenLayer, utilizing EigenCloud for specialized applications like perpetuals and AI agents. The mETH liquid staking protocol will also remain on EigenCloud. This is a targeted upgrade for core security, not a full ecosystem overhaul.
My Thoughts
This is a savvy, forward-thinking move. By migrating to Ethereum blobs, Mantle is future-proofing itself. It directly addresses the growing user preference for Ethereum-native security over alternative DA layers. This migration, following their earlier upgrade to ZK proofs, solidifies Mantle as a serious, security-focused L2 contender. It also showcases the real-world impact of Ethereum’s scalability roadmap—Fusaka is already enabling major architectural improvements. For the $1.5B ecosystem on Mantle, this upgrade is a powerful confidence booster.