Logo
ScienceStack
Table of Contents
Fetching ...
Sign In

Advancing Blockchain Scalability: An Introduction to Layer 1 and Layer 2 Solutions

Han Song, Zhongche Qu, Yihao Wei

TL;DR

Deep examination of the components of the Layer 1 protocol and the scale-up methods that directly improve the lower level blockchain indicate that Layer 2 protocols significantly outperform Layer 1 solutions in terms of transaction throughput and efficiency.

Abstract

Bitcoin rise has put blockchain technology into the mainstream, amplifying its potential and broad utility. While Bitcoin has become incredibly famous, its transaction rate has not match such a corresponding increase. It still takes approximately 10 minutes to mine a block and add it to the chain. This limitation highlights the importance of seeking scale-up solutions that solve the low throughput transaction rates. Blockchain's consensus mechanisms make peer-to-peer transactions becomes feasible and effectively eliminate the need for centralized control. However, the decentralized systems also causes a lower speed and throughput compared to centralized networks as we mentioned Bitcoin's block creation rates. Two mainstreams scale-up solutions, Layer 1 scale-up and Layer 2 scale-up have been implemented to address these issues. Layer 1 level scalability enhancements happen at where traditional blockchain operates. This paper provides a deep examination of the components of the Layer 1 protocol and the scale-up methods that directly improve the lower level blockchain. We also address that Layer 1 solutions encounter inherent limitations although improvements were applied due to layer 1 storage costs and latency are high. In addition, we discuss layer 2 protocols, advanced scalability techniques, that elevate blockchain performance by handling transactions off the mainnet. Our findings indicate that Layer 2 protocols, with their various implementations such as rollups and channels, significantly outperform Layer 1 solutions in terms of transaction throughput and efficiency. This paper discusses these Layer 2 scaling methods in detail, aiming to provide readers with a comprehensive understanding of these protocols and the underlying logic that drives their effectiveness.

Advancing Blockchain Scalability: An Introduction to Layer 1 and Layer 2 Solutions

TL;DR

Deep examination of the components of the Layer 1 protocol and the scale-up methods that directly improve the lower level blockchain indicate that Layer 2 protocols significantly outperform Layer 1 solutions in terms of transaction throughput and efficiency.

Abstract

Bitcoin rise has put blockchain technology into the mainstream, amplifying its potential and broad utility. While Bitcoin has become incredibly famous, its transaction rate has not match such a corresponding increase. It still takes approximately 10 minutes to mine a block and add it to the chain. This limitation highlights the importance of seeking scale-up solutions that solve the low throughput transaction rates. Blockchain's consensus mechanisms make peer-to-peer transactions becomes feasible and effectively eliminate the need for centralized control. However, the decentralized systems also causes a lower speed and throughput compared to centralized networks as we mentioned Bitcoin's block creation rates. Two mainstreams scale-up solutions, Layer 1 scale-up and Layer 2 scale-up have been implemented to address these issues. Layer 1 level scalability enhancements happen at where traditional blockchain operates. This paper provides a deep examination of the components of the Layer 1 protocol and the scale-up methods that directly improve the lower level blockchain. We also address that Layer 1 solutions encounter inherent limitations although improvements were applied due to layer 1 storage costs and latency are high. In addition, we discuss layer 2 protocols, advanced scalability techniques, that elevate blockchain performance by handling transactions off the mainnet. Our findings indicate that Layer 2 protocols, with their various implementations such as rollups and channels, significantly outperform Layer 1 solutions in terms of transaction throughput and efficiency. This paper discusses these Layer 2 scaling methods in detail, aiming to provide readers with a comprehensive understanding of these protocols and the underlying logic that drives their effectiveness.
Paper Structure (12 sections, 5 figures)

This paper contains 12 sections, 5 figures.

Table of Contents

  1. Introduction
  2. Layer 1 Blockchain
  3. Consensus mechanism
  4. Data Structure
  5. Fork
  6. Cryptographic primitives
  7. Scalability
  8. Layer 2 Blockchain
  9. Rollups
  10. Channels
  11. SideChain
  12. Conclusion

Figures (5)

  • Figure 1: Centralized database handles read and write requests from scattered clients
  • Figure 2: After Node C adds the new mined block to the Chain B, Chain B becomes the longest chain and fork is resolved
  • Figure 3: post account state replaces the previous state in rollup contract
  • Figure 4: workflow how sequencer interacts with on-chain contracts off-chain activities
  • Figure 5: arithmetic proving circuit shows the every step for calculation