ELIB: DAG vs PoS Blockchain

ELIB, Explain Like I’m Boss, is a collection of executive summaries for Web 3 technologies and projects.


This ELIB lists the unique advantages of features commonly seen in Directed Acyclic Graph (DAG) and Proof-of-Stake (PoS) Blockchain structures:

DAG

Individual Transaction Based

• Faster Finality
• Easier State Trimming
• Enables Parallel Transactions

Leaderless Transaction Sequencing

• Fairer Sequencing

Full Set Validator Voting

• Better Collusion Resistance

PoS Blockchain

Batched Transaction Based

• More reliable Transaction Interoperability

Fixed Set Validator Voting

• Enables Individual Accountability → better Network Uptime

Note that mirrored disadvantages and mutual features/advantages across DAG and PoS Blockchain are intentionally omitted for conciseness.

For further discussions: Twitter Thread

Credit to the works of (in alphabetical order) Eric Wall, Hans Moog, John Adler, Linus Naumann and Vitalik Buterin for inspiring this piece.