## TLDR
Arbitrum is an Optimistic Rollup and the dominant Ethereum L2 by TVL and developer activity. There are a number of high quality dApps being built on Arbitrum’s ecosystem, despite the fact that there are no token incentives (yet). Arbitrum has managed to reach multi-billion dollar TVL without these incentives which is a testament to the network effects of Ethereum and the ease of deployment and developer confidence in the Arbitrum L2 network. 

| TERMS  |  DEFINITION |
|:---:|---|
| **Verifiers**  | Verifiers play a crucial role in verifying the integrity of transactions before they are confirmed on L1. |
| **Validators/Operators**  | Validators in Arbitrum are the parties who take responsibility for ensuring the correctness of the

TERMS	DEFINITION
Verifiers	Verifiers play a crucial role in verifying the integrity of transactions before they are confirmed on L1.
Validators/Operators	Validators in Arbitrum are the parties who take responsibility for ensuring the correctness of the...