digraph acme { rankdir = LR; "directory" -> "new-reg"; "directory" -> "new-authz"; "directory" -> "new-cert"; "directory" -> "revoke-cert"; "new-reg" -> "reg" [ label = "Location" ]; "new-authz" -> "authz" [ label = "Location" ]; "authz" -> "challenge" [ label = "Location" ]; "new-cert" -> "cert" [ label = "Location" ]; "new-reg" -> "new-authz" [ label = "next" ]; "reg" -> "new-authz" [ label = "next" ]; "new-authz" -> "new-cert" [ label = "next" ]; "authz" -> "new-cert" [ label = "next" ]; "cert" -> "cert-chain" [ label = "up" ]; "challenge" -> "authz" [ label = "up" ]; "cert" -> "revoke-cert" [ label = "revoke" ]; }