What characters should I use in the suffix of my DOI?
The easiest and recommended option is to use a randomly generated suffix. The auto-generated DOI strings use a-z
and 0-9
. They avoid i
, l
, o
as they are easily mixed up with 0
, 1
. We group the suffix into blocks of 4, separated by a hyphen. You can generate a random suffix in both Fabrica and the API and your DOI will look something like this: 10.5438/9te8-5h68
.
If you choose not to use this option, remember:
-
The DOI suffix must be unique within each prefix. The optimum length of a DOI suffix is 6â10 characters.
-
Only use
a-z
,0-9
and-
in a DOI suffix. Other characters might have special meaning or will be escaped. DOI suffixes are not case sensitive. -
Avoid human-readable information in a DOI suffix because any meaning may change over time. Further advice on DOI suffixes.
Reserved Characters
Reserved characters should not be included in a DOI suffix:
;
|/
|?
|:
|@
|&
|=
|+
|$
|,
More resources:
DataCite blog post
Crossref blog post
Reserved characters in Elasticsearch
Technical implementation for generating random DOI strings
Auto-generate a suffix
The auto-generate DOI name functionality means the DOI suffix is generated automatically and will look something like this:
10.15138/33bv-s284
Updated 4 months ago