OffchainLabs/nitro v2.0.0-alpha.5

Arbitrum v2.0.0 Nitro Alpha 5

on GitHub

This release adds a number of AnyTrust improvements and features.

• Replace Retrieve API method which required passing a Data Availablity Certificate as the argument, with GetByHash which only needs the data hash.
• REST server option for daserver for serving GetByHash requests, additional to the existing RPC server.
• New storage modes! In addition to local disk file mode, there are now S3 and local disk database storage modes, see options starting with --data-availability.local-file-storage, --data-availablility.s3-storage, and --data-availability.local-db-storage
• In-memory caching mode, see --data-availability.local-cache
• Documentation in daserver-instructions updated with samples for how to run daserver as both a mirror and as a committee member.
• REST and RPC health checks for daserver.
• daserver can fall back to fetching from REST endpoints if it is missing a data hash, see the options under --data-availability.rest-aggregator. If it is able to retrieve from a REST endpoint, then it stores it locally. --data-availability.rest-aggregator.online-url-list allows fetching from a URL which contains a list of URLs, which can reference other lists so multiple parties can maintain mirror lists.