Rubic x Scroll: Pioneering Scroll Sepolia To Earn RBC!

6 min readSep 19


Embark on a journey of innovation in the Rubic x Scroll x Symbiosis Testnet Explorer Campaign on Galxe. This promotion celebrates the dawn of test networks on, which already covers 4 of them. Dive in and get ready to discover exciting new horizons and get rewards!

Discover the Scroll Sepolia Testnet with Rubic!

To elevate your engagement with the Scroll Sepolia Testnet (the final testnet before the mainnet), we’ve launched a mutual campaign together with Scroll, Galxe, and Symbiosis. Seize the opportunity to earn unique NFTs!

Campaign Highlights:

Between September 20th and October 4th, participate in cross-chain swaps to the Scroll testnet, accomplish on-chain and cross-chain swaps on Rubic using Mainnet Networks, and explore the provided article to earn exclusive Discord roles, and a share of 500,000 RBC tokens up for grabs!

Galxe Campaign:

- Engage in cross-chain and on-chain swaps.

- Every significant step you take earns you an NFT!

NFT Tasks:

NFT №1. Cross-Chain Swaps to the Scroll Sepolia Testnet via Symbiosis:

Link to Galxe

  • Like & Share the announcement.
  • Successfully perform a Cross-Chain Swap to the Scroll Sepolia Testnet via (pick Symbiosis as a provider).

Switching to Testnet:

If you’re not using the direct link above, to transition from Mainnet to Testnet, follow these steps:

  • Click the collapsed menu icon located in the upper-left corner of your screen.
  • Select the “Testnet App” option.

NFT №2: Scroll Testnet Explorer NFT

Link to Galxe

  • Engage with a Medium Blog / Mirror article about this promotion and Scroll’s integration to Rubic.

NFT №3: Any Swap in the Rubic Mainnet App

Link to Galxe

  • Accomplish an on-chain/cross-chain swap on using any of the following networks: Ethereum, BNB Chain, Polygon, zkSync, Avalanche, Polygon zkEVM, Optimistic Ethereum, Arbitrum, or Fantom.

Reward Pool:

  • A whopping 500,000 RBC tokens up for grabs for a lucky 1,000 wallets (at least 3+ months old)
  • The exclusive “Hunter” Discord Role for those who claim all NFTs.

*Please note that cheating is highly discouraged. The teams are free to disqualify wallets that they find suspicious of cheating.

Embrace innovation, explore possibilities, and make your mark by being an early tester of Scroll!

Dive in below to find out more about this network!

Scroll: Unveiling Decentralization and Censorship Resistance

Scroll introduces a revolutionary zkEVM-based zkRollup solution on the Ethereum platform. This innovation brings native compatibility for existing Ethereum applications and tools, presenting a dynamic blend of decentralization, permissionlessness, and censorship resistance.

For those who may have missed our earlier piece on Ethereum scaling solutions, especially focusing on zkRollups, take a moment to catch up: “Rubic as an Ethereum L2 Network Aggregator.”

Unlocking Scroll’s Benefits:

Enhanced Security. Scroll introduces a more secure space for Ethereum, bolstered by the inheritable security of zero-knowledge proofs (ZKPs).

Reduced Costs. By leveraging advanced ZKP and hardware acceleration breakthroughs, Scroll minimizes transaction costs while increasing network activity.

Swift Transactions. Scroll’s 3-second block generation allows for rapid transaction finality, paving the way for new possibilities in social and gaming applications.

By executing transactions on the L2 and generating cryptographic proofs of their correctness, Scroll ensures both security and speed. These cryptographic proofs are verified on Layer 1 through a smart contract, seamlessly translating all interactions on Scroll Layer 2 as if they were executed on Ethereum Layer 1.

Delving into Scroll’s Architecture:

The heart of Scroll’s architecture is the zkEVM, a robust solution developed in collaboration with the Ethereum Foundation’s Privacy and Scaling Explorations group. To transform zkEVM into a comprehensive zkRollup on Ethereum, Scroll encompasses three key infrastructure components:

  1. Scroll Node: Constructs Layer 2 blocks, facilitating communication between L1 and L2.
  2. Roller Network: Generates zkEVM validity proofs for accurate transaction execution verification.
  3. Rollup and Bridge Contracts: Ensure data availability, validate zkEVM proofs, and enable asset movement between Ethereum and Scroll.

For an in-depth understanding of Scroll’s architecture and workflow, explore their article: “An Overview of Scroll’s Architecture.

Scroll Stats:

Average block time — 3.1 seconds

Total transactions — 47M

Total blocks — 4M

Wallet addresses — 9M


Scroll — Useful Links:

  1. Scroll Sepolia Testnet —
  2. Scroll Bridge —
  3. Scroll Ecosystem —
  4. Rollup Explorer —

Rubic’s Alignment with the Scroll Testnet: Uniting on Fundamental Principles

At Rubic, we recognize the fundamental principles that underpin the Scroll Network’s foundation. We not only share these principles, but also strive to contribute to their implementation, scaling, and distribution. Let’s delve into the core principles that form the bedrock of Scroll’s approach, and discover how Rubic’s commitment enriches each facet.

Elevating User Security

Security lies at the heart of any blockchain scaling solution. For Scroll, this means users should not need to rely on the honesty of Layer 2 nodes for security and can instead take advantage of full Layer 1 security, even when transacting on Layer 2.

At Rubic, securing user funds and data integrity is our top priority. To fortify this commitment, we’ve instituted advanced security architecture, introduced a bug bounty program, and subjected our smart contracts to audits.

Sustaining EVM-Equivalence

Effective Ethereum scaling means smooth transitions. Scroll Sepolia Testnet focuses on EVM-equivalence, simplifying migrations without major changes. This enhances user and developer convenience.

The Rubic Protocol supports the most popular EVM-compatible networks and Ethereum Layer 2 Rollups in particular, including Arbitrum, Boba, Optimism, and Metis. By aligning with Scroll’s commitment to EVM-equivalence, Rubic is actively contributing to Ethereum scaling and facilitating seamless cross-chain swaps among EVM networks.

Efficiency for an Enhanced Experience

Scroll’s team underscores the importance of user experience on Layer 2 networks:

  • Affordable Transactions: Transaction fees are significantly lower than those on the base layer.
  • Instant Pre-Confirmations: Swift pre-confirmation on Layer 2.
  • Fast Finality: Timely finality on the base layer, like Ethereum.

Rubic, as a cross-chain tech aggregator, is resolute in creating the most cost-efficient and time-effective solution for cross-chain swaps across diverse networks. Our goals align with Scroll’s principles, creating a seamless experience for users.

In embracing Scroll’s principles, Rubic reinforces its unwavering dedication to innovation, security, and user-centric development. Together, we champion a future where cutting-edge technology thrives in a decentralized, secure, and efficient ecosystem.

About the Scroll Sepolia Testnet

The Scroll Sepolia testnet is a beta testnet on Sepolia. It runs alongside the Scroll Mainnet indefinitely and serves as a testing ground for all future upgrades.

The team focuses on security and have implemented significant changes. They want to test these changes in a live environment before going to mainnet and provide applications with a testing environment that mirrors the mainnet.

About Symbiosis

Symbiosis Finance is a multi-chain liquidity protocol that aggregates decentralized exchange liquidity across all EVM and some non-EVM networks. Symbiosis aims at solving a twofold problem: liquidity fragmentation across different blockchain networks, and poor user experience while working with the DeFi and Web3 economy.

About Rubic

Rubic aggregates 70+ blockchains and testnets, while it enables swaps of 15,500+ assets with the best rates, highest liquidity, and transaction speeds — in one click, thanks to the integration of 90+ DEXs and bridges.

Users no longer have to roam across Web3 to compare rates and liquidity; they can make cross-chain and on-chain swaps of any available token to any other one on On top of that, Rubic’s app along with our cross-chain widget provide fiat on-ramp services, making crypto easy to access and buy.

We also provide tools for dApps to enable cross-chain swaps. Rubic’s functionality can be implemented by any crypto project willing to become interoperable, with an easy-to-install widget and fully customizable SDK.




Rubic aggregates 70+ blockchains & testnets, and enables swaps of 15,500+ assets with the best rates, highest liquidity, & transaction speeds — in one click!