Bridging (Hyperlane)

Problem statement

Rollups want to use TIA as a gas and collateral token, similar to how ETH is used by Ethereum L2s. However, TIA can’t be bridged directly from Celestia to rollups. Celestia has a minimal base layer, and the only enshrined bridge is IBC, which is built for L1s, not rollups. 

Solution

Stride’s Hyperlane deployment is the main way rollups import TIA and stTIA from Celestia and transfer TIA and stTIA to and from other rollups in the Celestia ecosystem.

As an L1, Stride can securely connect to Celestia through IBC. Because Stride doesn’t have to be as minimal as Celestia, it can also add Hyperlane, which is the leading rollup bridging solution.

Stride’s bridging UX is also smooth. By adding IBC middlewares, end users can transfer TIA from Celestia to rollups by signing just a single transaction.

What is Hyperlane

Hyperlane is secure bridge technology for the modular ecosystem.

It differs from other bridging solutions in two ways: it has permissionless deployment, and customizable security. All other bridging solutions only tick one of these boxes.

Permissionless deployment is important to allow many rollups to securely source TIA. In a world with 1000s of rollups, the Hyperlane BD team is not a bottleneck.

Customizable security is important, because the modular stack has many configurations. For example, a chain could have a centralized sequencer, and a Hyperlane bridge that has multiple validators with slashable collateral.

See it in action:

Forma (the first sovereign rollup) imports TIA from Celestia using Stride’s Hyperlane deployment. Forma can also import TIA or stTIA that’s already on Eclipse, another rollup in the Celestia ecosystem. All these transfers are routed securely through Stride’s hyperlane deployment.

Why is Stride using it

Bullet point answer

• Rollups need TIA and stTIA now. Don’t support IBC.

• Hyperlane is the best solution currently available. 

• Other Hyperlane deployments are not neutral.

• Stride is the ideal platform to host a Hyperlane deployment, given its neutrality, security, and minimalism.‍