to enhance the capacity Bitcoin's blockspace, Citrea has introduced first ever ZK Rollups on top of Bitcoin.

Exploring Bitcoin's First Ever ZK Rollup

By Coins Reporter | Coinsreporter | 8 Feb 2024


In an attempt to enhance the capacity Bitcoin's blockspace, Citrea has introduced first ever ZK Rollups on top of Bitcoin. 

Why ZK Rollup For Bitcoin?

The previous scalability solutions for Bitcoin demanded security to move off chain and off Bitcoin. However, with the introduction of Citrea's first ever Zero Knowledge proofs, developers can now verify data and use Bitcoin's matchless security on chain. For this Citrea becomes the pioneer by providing scalability solutions to Bitcoin without altering with its consensus and security.

How Does Citrea Deploy ZK Rollup On Bitcoin?

In short, it will do so with BitVM. BitVM will be used for bridging mechanism between the rollup and the Bitcoin blockchain. However, Citrea isn't limited to one VM and can integrate to other VMs as well in future. 

In fact, all of Citrea transactions act as validity proofs that are inscribed in Bitcoin and optimistically verified on Bitcoin via BitVM. By this Citrea has introduced an environment where developers can build anything on its EVM compatible execution shard. 

For the first time in Bitcoin history, Citrea validity proofs are inscribed and natively verified within the Bitcoin blockchain. Citrea comes with a native ZK proof verifier smart contract on Bitcoin L1, built in BitVM. Unlike monolithic sidechains, Citrea creates a modular world for Bitcoin with its execution shard that keeps the settlement and data availability on-chain, on-Bitcoin. Monolithic vs Modular Blockchains: Citrea is Modular Blockchain on top of bitcoin

(Source)

What is Citrea VM?

The Citrea VM is an EVM equivalent VM running on Bitcoin. It will use 'cBTC' as its native token. Citrea's VM is classified as type 2 zkVM  which means it's based on zk-STARKs, which will further bolster a scalability and trust. 

Is Citrea EVM compatible?

Yes, Citrea is fully EVM compatible. All the tools available for EVM can also be used for Citrea.

Can You Run A Node?

Yes, you can run a nodes. Citrea will allow all users to run full or light nodes on its network.

Citrea's Token?

Bewaring all, Citrea has clearly mentioned on its blog that it hasn't come up with a token yet. cBTC will be used to transact with Bitcoin and doing all other operations in Citrea Ecosystem. 

Can You Develop On Citrea?

Citrea makes a point while stating that it is well funded and has been incubated under Chainway Labs for over two years now. The official Citrea blog states that their testnet is almost ready and that have opened a developer contact form. However the devenet is ready and validating some critical infrastructure including BitVM integration.

Final Thoughts

Citrea's annoucement of first ever ZK Rollups on Bitcoin will become milestone as it will not only solve the scalability issues, but also allow a return to those who went with other solutions, like Ethereum or Polkadot or Solana. Bitcoin's security, decentralization, and anti censorship properties will lure everyone back to what's now nearly A trillion dollar asset.

By recognizing Bitcoin's potential, Citrea has built something exceptional. ZK Rollups on Bitcoin will be a catalyst to more democratic and decentralized dynamic ecosystem of DApps. Citrea will definitely advance higher from here. 

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