🌐 Decentralization: Shared Sequencers
Discover the path from centralized to decentralized sequencing
Watch how rollups batch transactions
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0 / 5 completed🛤️ Path to Decentralization
Most L2s start with centralized sequencers and gradually decentralize. Understanding this progression helps anticipate future protocol designs and trade-offs.
🚀 Decentralization Journey
Navigate through the stages of sequencer decentralization. Each stage brings different trade-offs between speed, security, and decentralization.
Single Sequencer
One entity controls transaction ordering
✓ Advantages
- • Simple
- • Fast
- • Low latency
✗ Disadvantages
- • Centralized
- • Single point of failure
- • High censorship risk
Examples:
🔬 Technical Approaches
Based Rollups
L1 validators sequence L2 transactions directly. Inherits L1 decentralization instantly.
Shared Sequencing
Multiple L2s share a decentralized sequencer network (Espresso, Astria).
Threshold Encryption
Transactions encrypted until block committed, preventing MEV extraction.
⚡ Current Status (2024)
🎯 Key Challenges
Performance vs Decentralization
Decentralized consensus adds latency. Need innovations to maintain speed.
Economic Security
Sequencers need sufficient stake and incentives to ensure honest behavior.
Cross-Chain Coordination
Shared sequencing requires complex coordination between multiple rollups.
Implementation Complexity
Building robust, decentralized systems is significantly harder than centralized ones.