Tanssi Technical Roadmap: What’s Coming After Mainnet

Just shortly after the launch of Tanssi mainnet, the first L1s are already live: producing blocks, transferring assets, and proving the promise of fully automated L1 deployment. What began as the ambitious idea of letting anyone launch a blockchain in minutes has already become a functioning ecosystem.

The infrastructure stack is stable, the operator pool is live, and sovereign L1s are running independently on mainnet.

Now it’s time to look ahead at what comes next for Tanssi through the rest this year and into 2026.

The roadmap is organized around four pillars: reliability, interoperability, security, and scale.

1. Reliability: Data Preservers & Persistent Infrastructure

Data Preservers are the backbone of reliable access in Tanssi. Today, they run full archive nodes for every L1, ensuring complete data availability, verified storage, and consistent RPC access. Unlike sequencers, which rotate frequently for block production, Data Preservers are long-lived operators responsible for deterministic state queries, historical reads, and stable endpoints used by dApps, explorers, and developers.

At the moment, Data Preservers operate as part of Tanssi’s native persistence layer.

The next milestone is opening this role to external services: turning it into a permissionless marketplace where independent preservers can join, compete on reliability and cost, and receive protocol-level incentives for high-quality archival infrastructure.

External providers will integrate directly into the protocol, letting each L1 choose its own persistence layer while staying fully trustless. Incentives for Data Preservers already exist and will expand as the network scales. With persistence maturing, the next pillar is interoperability: enabling L1s to move assets and messages trustlessly across ecosystems.

With persistence maturing, the next pillar is interoperability.

2. Interoperability: Liquidity Routing, Snowbridge V2 & Multichain Connectivity

Cross-chain liquidity is now entering its next phase. Tanssi-powered L1s will soon be able to send their native tokens to Ethereum, while ERC-20 assets will flow back the other way, all via Snowbridge, a fully trustless bridge secured by on-chain light clients. Because Ethereum state is verified directly on-chain through Snowbridge’s light clients, there are no multisigs, custodians, or off-chain committees involved; the bridge operates with fully trustless verification.

ETH is also being registered as a native token inside Tanssi and across all L1s, enabling direct settlement and bridging. This opens the door to future ERC-20 support, including stablecoins, unlocking use cases such as stablecoin-denominated gas and treating any ERC-20 as a first-class asset across sovereign L1s.

Snowbridge V2 expands these capabilities with upgraded light clients, unified message verification, faster proofs, and improved gas efficiency. Tanssi’s integration is fully self-contained, with direct verification between the chains and no intermediate hubs or external routing layers.

Bridge fees will be paid in ETH (toward Ethereum) and TANSSI (back to Tanssi), forming a smooth dual-asset fee model.

Snowbridge V2 also enables Tanssi to use Ethereum as a trustless routing layer for other ecosystems.

The next extension is LayerZero integration, bringing connectivity to major EVM networks like Base, Polygon, and Arbitrum, using Snowbridge as the source of truth while LayerZero handles routing.

The long-term goal: a seamless, trustless liquidity layer connecting Tanssi, Ethereum, and beyond.

3. Security: Expanding Shared Security Coverage

Shared security is the heart of Tanssi’s trust model. Today, operators secure appchains through Ethereum restaking on Symbiotic, ensuring Ethereum-aligned security from day one.

As Tanssi’s operator pool grows, the next step is expanding the collateral base behind that security:

• A fully permissionless operator registration flow

• Additional restaked collateral sources

• Integrations with ecosystems like EigenLayer

• Simpler staking and delegation flows

The goal is a diverse, censorship-resistant operator set that grows in depth and resiliency as more L1s join the network.

With reliability, interoperability, and security expanding, the next step is scale.

4. Beyond 1.0: The Long-Term Vision

With L1s operational, the sequencer and operator pools live, and trustless bridges active, Tanssi’s 1.0 milestone is nearly complete. The foundation is strong.

The next phase is turning Tanssi into the premier platform for launching and scaling sovereign blockchains, combining:

• full decentralization

• best-in-class developer experience

• Ethereum-aligned economic security

• trustless interoperability

• vertically integrated orchestration

By mid-2026, Tanssi expects to host dozens of production L1s, each with its own token economy, sequencers, and infrastructure stack. (Developers can already explore the growing list at apps.tanssi.network/appchains).

Alongside this growth, Tanssi will continue expanding:

• the number of sequencers and operators

• the data preserver marketplace

• SDK and runtime upgrades

• developer tooling and monitoring

• robustness and stability of the orchestration layer

  
  

Final Thoughts

Tanssi’s launch marks more than the birth of a new blockchain, it marks the beginning of a new model for decentralized infrastructure. With sovereign L1s live, operators actively validating, and a trustless bridge to Ethereum open, the foundations are already in place.

Demand has exceeded expectations, and the dance floor is full.

From data availability to cross-chain liquidity and shared security, the coming year will see Tanssi evolve from a groundbreaking launch into a living, expanding ecosystem, delivering everything promised and much more.

The rhythm is set. Now it’s time to dance. Visit the Tanssi dapp at apps.tanssi.network.