The core of the project is history archives in Content Addressable format (overview, specs). These represent a verifiable, immutable view of the Solana history. The CAR files that this project generates follows a schema specifically developed for Solana’s historical archives.
The content addressable nature means that each epoch, block, transaction and shredding is uniquely identified by a content hash. By knowing this content hash a user will be able to retreive a specific object of interest in a trustless manner, i.e. retrieve an object verifiably from a non-trusted source. Retrievals can be made via IPFS, the Filecoin network, or even by hosting the CAR files yourself on disk, a ceph cluster, S3, you name it.