OSIS? 2.0.1 User's Manual - Web services are running on AMBIB

.
It is permissible for osisRefs, including those on either side of a hyphen in a range
reference, to use osisIDs that include the work-specific extension fields ("!" followed by
a name).
15.1. Fine Grained References
To refer to specific locations within a named canonical reference element, give the osisID
as usual, followed by a "grain identifier", which consists of the character "@", and then
an identifier for the portion desired. Such identifiers <strong>are</strong> of the form:
grainType(parameters)
Two grain types <strong>are</strong> defined at this time:
cp (short for "code point") counts through the character content of the referenced
element, essentially by characters. Technically, the units counted <strong>are</strong> Unicode code
points, a term which is defined more precisely than the generic term "character". The first
code point of content is number 1, not 0.
Markup does not imply a space for purposes of counting even if it may for purposes of
layout, printing or indexing.
When referring to a location in canonical content, text within non-canonical elements is
not counted. (Thus, the intuitive count will not be changed by the insertion of notes,
references, critical apparatus, and the like). When referring to a location in non-canonical
content, all text in all included elements counts, whether canonical or not.
Grains: s (short for string) finds the first match of the string value specified, with regard
to case, within the canonical reference specified. If the canonical reference is one of
several applied to the same target element (for example, when a paragraph has
osisRef="Matt.1.1 Matt.1.2 Matt.1.3), that whole element is searched. If the string is not
found, the user agent must warn the user, and may offer to suggest a best guess (for
example, by searching again while ignoring case, whitespace, punctuation, accents,
spelling variation, etc).
16. Different versification systems
Hebrew tradition numbers the proscriptions above Psalms (such as "A Maskil according
to David") as verse one, and goes on from there; Greek tradition does not number the
proscriptions, and start verse 1 after it. Of course, this would make all references in
Psalms be off by one verse if the version reached is from the other tradition.