1. 1. Intro
3. Code walkthroughs
4. 2. Arbitrum
   1. 2.1. Sequencing
   2. 2.2. Proof system
   3. 2.3. Admin operations
5. 3. Optimism
6. 4. Scroll
   1. 4.1. Sequencing
   2. 4.2. Proof system
   3. 4.3. Admin operations
7. 5. Taiko Alethia
   1. 5.1. Sequencing
   2. 5.2. Proof system
   3. 5.3. Admin operations
8. 6. DA Layers
   1. 6.1. Celestia
      1. 6.1.1. Blob Lifecycle
   2. 6.2. EigenDA
      1. 6.2.1. Blob Lifecycle
10. L2BEAT specs
11. 7. Interop
12. 8. Permissions section
13. 9. Contracts section
14. 10. Finality page
15. 11. Stages edge cases