Data Availability Servers

Committee members manage Data Availability Servers (DAS), which provide access to two crucial APIs:

  1. Sequencer API: Reserved solely for use by the Arbitrum chain's Sequencer, this JSON-RPC interface allows the Sequencer to submit data blocks to the DAS for storage.

  2. REST API: Tailored for wider access, this RESTful HTTP(S)-based protocol permits retrieval of data blocks by hash. It supports full caching, and deployments can integrate caching proxies or CDNs to improve scalability and mitigate potential DoS attacks.

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