We've now covered each of the types defined and utilized by Rebase, and additionally have covered the details of each witnessed Flow. Hopefully you feel comfortable enough to add new Subjects, Issuers, Contents, and Flows. If you're looking for more information on how to run a witness service or how to create a client for an existing witness service, check out these two libraries (witness SDK), (JS Client). If you want to see examples in action, here's the credential faucet, that site's code base, or the code base of the Cloudflare worker witness service that backs that site.