While the ease at which new blockchains can be created and deployed has improved over time, there are hurdles and costs associated with doing so. Currently, an independent blockchain can be created using a template, but the difficulty comes...
from the requirement to launch a new coin with a large distribution and find validators to help bootstrap the network. This process is time-consuming and can become considerably expensive.
Celestia provides a minimal base layer that makes it simple to develop blockchains…
at a low cost and deploy them quickly. For example, Optimint is building a template for an optimistic rollup that, when paired with Celestia, will allow anyone to create a rollup and immediately deploy it without costs from token launches and sourcing a large validator set.
What Celestia aims to achieve is for it to be as easy to deploy a blockchain as it is to deploy a smart contract. This represents blockchain’s transition into the modern web.
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Celestia does not support smart contract capabilities because it is designed to provide data and consensus for rollups, which will support them.
One advantage is that rollups will be able to explore new novel designs for settling proofs.
One approach is for rollups to distribute proofs directly on the p2p network.
In this case proofs aren’t posted on any settlement layer, they are verified locally by clients of the rollup. This is similar to how @MinaProtocol works.
Another model is for rollups to utilize a settlement layer for proof verification or dispute resolution.
The settlement layer is also helpful for cross-rollup communication and provides an exit mechanism for rollup users.
This is similar to how Ethereum rollups work today.