Scroll Blockchain Development

One of the final significant platforms in the so-called L2-network category to introduce its token through an airdrop is Scroll. Platforms such as Arbitrum, Optimism, zkSync, and Starknet are examples of L2 projects. They all introduced their tokens and gave them to early adopters through airdrops.

Developers Ye Zhang, Sandy Peng, and Haichen Shen launched the Scroll project in 2021. For more than a year, Scroll has been developed in partnership with the Ethereum Foundation’s Privacy and Scaling Explorations group. Through two funding rounds headed by Polychain Capital and including participation from IOSG Ventures, Variant, Bain Capital Crypto, and Robot Ventures, they were able to raise $80 million between 2022 and 2023. The project had a $1.8 billion valuation. The team announced the introduction of the main network, which is currently operational, one year after launching a test version of the Scroll blockchain network in 2022.

The goal of the blockchain project Scroll is to increase the speed and lower the cost of transactions in order to improve the scalability of the Ethereum network. The project’s foundation is zero knowledge (ZK) proof technology, which is also utilized by Starknet and zkSync, two related blockchain initiatives.

This method does not reveal all information, but it does assume that network operations (transactions) are executed appropriately. For instance, this may be thought of as determining if a user has enough money for a transfer without revealing the user’s identity or the amount of money in his wallet.

The outcome of these computations and processing is sent to Ethereum as a big transaction package (roll up), where a large array is reviewed for accuracy rather than one operation at a time. Without sacrificing security or decentralization, this dramatically lowers transaction costs and speeds up transaction processing.

The platform’s concept encompasses not only Ethereum’s scalability but also the complete interoperability of apps developed on the network. The main idea behind this strategy is that any project that is now operating on the Ethereum network may be moved to Scroll without requiring a change to the source base. This method sets Scroll apart from other rollup-based solutions that employ a different architecture and methods, including Starknet.

According to Defillama, Scroll’s TVL was around $70 million at the time of writing.

The loan protocol Aave, the decentralized exchange Tokan, and the passive income protocol Pencils are the three biggest TVL apps operating on Scroll.

190 million SCR tokens, or 19% of the 1 billion total token supply, were distributed. Until the end of 2028, the remaining SCR tokens will be progressively unlocked.

You must first comprehend the various layers of architecture and its components in order to comprehend how a blockchain operates.

Layer of Settlement

The Bridge Contract and the Rollup Contract are the two contracts that make up this Ethereum layer.

Bridge Contract:

enables users and DAPPs to transfer data to the Scroll network (L2) and back to L1, including messages, assets, and transactions (if Dapps are in L1).

Rollup Contract:

• confirms batch transactions sent from L2 that are bundled;
• assures data availability, allowing any network user to access transaction and block information;
• arranges transactions for the official Scroll chain. In a blockchain, transactions have to be completed in a specific sequence to prevent fraud and duplicate spending. Transactions contained in the canonical Scroll chain are handled in the proper and consistent order thanks to the Settlement Layer.

Sequencing Layer

The Execution Node and the Rollup Node are the nodes that make up this level.

Node of Execution:

First of all, this is a centralized node, which is one of the key elements of the protocol at the time.

It is in charge of:

• verifying and carrying out transactions sent by users via the L1 contract-bridge or the L2 network;
• using transactions to create L2 blocks.

Rollup Node:

• batches transactions;
• releases block and transaction data on Ethereum to guarantee data accessibility;
• sends Ethereum evidence of transaction correctness for the batch’s final confirmation (finalization in L1).

Proving Layer

The Coordinator and the Provers module make up this tier.

Provers:

• This is the decentralized network’s pool of verifiers.
• They are in charge of producing zkEVM proofs of validity, which confirm that L2 transactions are accurate.

Coordinator:

To ensure that transactions in Ethereum are final, the Coordinator module then forwards verification tasks to a random Prover and forwards the proofs to the Rollup Node.

Thus, there are three steps in the Rollup process:

• The Execution Node is where transactions are validated and carried out.
• Changes are committed to L1 and transactions are bundled into a batch.
• To complete transactions, create a proof and submit it to the Rollup contract.

Scroll Infrastructure

Bridges, DeFi, infrastructure protocols, and other protocols are among the many protocols already included in the rapidly expanding Scroll infrastructure.

In conclusion

The Scroll protocol appears to have a lot of promise. At the moment, developing for Scroll is simpler than for blockchains that are less EVM-compatible.