Optimizing Expenses with Trust-Based Strategies

The foundation of the Arbitrum protocol is built on the principle that every node, especially validators who are responsible for confirming the chain’s accuracy and betting on truthful outcomes, needs to have access to all Layer 2 (L2) transaction data within the Arbitrum chain's inbox. Traditionally, to guarantee this data accessibility, Arbitrum rollups post the data on Layer 1 (L1) Ethereum as calldata, a method that leads to significant Ethereum gas fees, representing the bulk of costs associated with Arbitrum.

In a significant departure from this model, AnyTrust introduces an innovative approach by allocating the responsibility of data storage and timely delivery to a designated external group known as the Data Availability Committee (the "Committee"). This Committee is composed of N members and operates under the trust-based premise that a minimum of two members will always act honestly. This assumption underpins the reliability of the data availability critical to the rollup protocol's operation, ensuring that, despite potential failures from N-1 members of the Committee to provide data, the integrity and availability of the data are maintained until the agreed-upon expiration time.