The CORTX S3 Server is the S3 compatible API to CORTX and is implemented by using the KV and object API's to the CORTX motr to store and retrieve metadata and data respectively.
To learn more the CORTX S3 architecture, a good place to start is by viewing the sequence diagrams here, here, and here.
Our S3 Compatability Matrix can be found here.
Finally, please also refer to our Main Overview and our Authentication Overview.