What is Scroll?
Scroll is a zk-Rollup solution built on zkEVM technology for Ethereum. Designed as a Layer 2 scaling solution, Scroll aims to enhance Ethereum's scalability by reducing congestion and lowering transaction fees. Founded in 2021, Scroll successfully launched its mainnet in October 2023, positioning itself as a key player in the Ethereum ecosystem.
👉 Explore Scroll's official portal
Basic Concepts
What is EVM?
The Ethereum Virtual Machine (EVM) is the decentralized computation engine powering Ethereum. It executes smart contracts and enables functionalities like:
- Cross-chain compatibility
- Decentralized applications (DApps)
- Creation of ERC-20 tokens, NFTs, and DeFi protocols
What is Zero-Knowledge Proof (zkRollup)?
Zero-Knowledge Proof (ZKP) is a cryptographic method allowing one party to verify data without revealing underlying details. In blockchain, ZKP enhances:
- Privacy: Transactions remain confidential.
- Security: Validations occur without exposing sensitive data.
What is zkEVM?
zkEVM merges Ethereum’s EVM with ZKP technology, enabling:
- Ethereum-compatible smart contract execution
- Off-chain computation with on-chain proof verification
- Faster transactions and lower fees
Project Vision
Scroll’s mission is to create a fully EVM-compatible zk-Rollup, ensuring seamless migration for Ethereum developers. Key goals include:
- Maximizing Ethereum compatibility to avoid code rewrites.
- Reducing fees and improving throughput via ZK technology.
- Democratizing blockchain access for global users.
👉 Learn more about Scroll's whitepaper
Development History
- 2021: Project founded by Ye Zhang, Haichen Shen, and Sandy Peng.
- 2022: Pre-alpha testnet launch; partnership with zCloak for privacy DID.
- 2023: Testnet deployment on Goerli; $50M funding round.
- 2024: Darwin Upgrade (August) and gas fee optimizations.
- 2025 (Planned): Rust-based sequencer launch.
Key Milestones:
- TVL: $152M (Dec 2024), peaking at $980M.
- Ecosystem Growth: Over 570,000 wallets in airdrop eligibility.
Team Background
Scroll’s core team blends technical expertise and operational excellence:
- Ye Zhang (Peking University): ZK-proof specialist.
- Haichen Shen (Tsinghua University): Systems engineering expert.
- Sandy Peng (Cambridge): Web3 strategist.
Funding and Valuation
- Total Raised: $83M (Series A + undisclosed rounds).
- Valuation: $1.8B (March 2023).
- Investors: Polychain Capital, Sequoia China, OKX Ventures.
Technical Features
- Bytecode-Level zkEVM: Native EVM compatibility for Solidity/Vyper contracts.
Three-Layer Architecture:
- Settlement Layer: Ethereum bridge for security.
- Sequencing Layer: Orders and processes transactions.
- Proving Layer: Validates transactions via ZKP.
- Efficient Transaction Lifecycle: Confirmed → Submitted → Completed (minutes).
Ecosystem Highlights
DeFi
- Aave, SushiSwap, Pendle Finance.
- World Liberty Finance: Trump-affiliated DeFi platform.
Cross-Chain
- Celer Network, Stargate, Orbiter Finance.
Wallets
- OKX Wallet, Safe, MathWallet.
NFTs
- AlienSwap, Zonic, Omnisea.
Tokenomics ($SCR)
- Total Supply: 1 billion SCR.
- Circulating Supply: 139M (13.9%).
- Airdrop: 15% (7% distributed, 8% reserved).
Use Cases:
- Paying network fees.
- Governance voting.
- Staking rewards.
Airdrop Details
First Round (7%)
- Snapshot: Oct 19, 2024.
- Eligibility: On-chain activity (DeFi, bridging, donations).
Second Round (8%)
- Scroll Sessions: Earn "Marks" for ecosystem engagement.
Investment Potential
Pros
- Cutting-edge ZK-Rollup tech.
- Strong team and backers.
- High EVM compatibility.
Risks
- Competition (zkSync, StarkNet).
- Unlocking pressure (40% supply vested).
Market Data (Dec 2024):
- Price: $1.01/SCR.
- Market Cap: $140M.
Conclusion
Scroll’s bytecode-level zkEVM and EVM alignment make it a standout Layer 2 solution. While competition is fierce, Scroll’s focus on developer experience and ecosystem incentives positions it for long-term growth. Strategic adoption of DeFi partnerships and cross-chain integrations will be critical for sustained success.
FAQs
Q: How does Scroll reduce gas fees?
A: By processing transactions off-chain and submitting proofs to Ethereum.
Q: Can existing Ethereum dApps migrate easily?
A: Yes—Scroll’s EVM compatibility requires minimal code changes.
Q: What’s next for Scroll in 2025?