Behold lists all your sources together as a master reference you can use.to clearly see all the data you have used and where you've used each of them in your genealogy.
Sources describe where your information came from. A source can be any type of record, person, document, book, etc. Within any particular source may be any number of source references that refer to a specific location within the source, e.g. a page number, an entry in a database, or a line in a census form.
You can think of the source references as the specific items of evidence you use to help you come to your conclusions by providing you with information.
When some information is obtained from a source reference, the link to the source reference often looks like this and includes both the source title and the source reference:
The Source ID of the record is shown by default as hidden text, since usually you don't want to see it. It is simply an internal identifier to the source in the GEDCOM genealogy file.
Note there's no such thing in a GEDCOM file as Source Reference ID. GEDCOM files include the Source Reference with the information right after the link to the Source ID. This is cumbersome as it does not easily allow one Source Reference to be used multiple times. Behold's internal format fixes this by creating a source reference record that stands on its own.
Genealogy files may link to images, videos or other media. These are usually done as external objects. Different genealogy programs produce these objects in different ways, but often they will use a link to the object. The file suffix, in the example above being ".jpg", will define the type of object. Clicking on the link will invoke the program to open that object for you.
All the references back to the information that credits this Source Reference are given. This includes the date, the place (as a hyperlink back to the place), the name of the person (as a hyperlink to the person) and the number of the person.
A Source can will include this information if the source is directly credited.