Crossmark is an initiative to provide a standard way for readers to locate the current version of a piece of content. By applying the Crossmark button, Castledown Publishers are committing to maintaining the content it publishes, and to alerting readers to changes if and when they occur.
Clicking on the Crossmark button will tell you the current status of a document and may also give you additional publication record information about the document.
Journal content with the Crossmark icon is restricted to current and future journal content and limited to specific publication types (see below) and only on content hosted by the official Castledown website.
Publication Types
| Article Type | Short Description |
|---|---|
| Addendum | Publication item giving additional information regarding another publication item, mostly presenting additional results. |
| Book Review | A detailed review of a published book. |
| Discussion | Argumentative communication, like papers in a discussion, but also perspectives, commentaries, etc. |
| Duplicate | Accidental duplication of an article in another Castledown journal. The text of the article is retracted. The HTML pages are replaced by a single page with citation details and an explanation. The PDF pages remain with a watermark on every page to notify it is a duplicate. |
| Erratum | Article in which errors are reported that were made in an earlier publication in the same journal. Can be Erratum (publishing error) but also Corrigendum (author error). |
| Regular Article | Complete report on original research, typically including an extensive list of relevant references. |
| Removal | The text of the article is removed. The HTML pages and PDF pages of the article are completely removed and replaced by a single page with citation details and an explanation. |
| Retraction | The text of the article is retracted. The HTML pages are replaced by a single page with citation details and an explanation. The PDF pages remain with a watermark on every page to notify it is retracted. |
| Review Article | Substantial overview of original research, usually with a comprehensive bibliography. |
| Short Article | An article containing original research or a discussion of an issue relevant to the scope of the journal it is published in. |
| Software Review | A description of commercial or open-source software or app, providing how it is applicable to the scope of the journal it is published in. |