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OPUS

open source software used for creating Open Access repositories that are compliant with the Open Archives Initiative Protocol for Metadata Harvesting
CreativeWork free_software Q2007840
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OPUS

Summary

OPUS is a free software[1]. OPUS ranks in the top 9% of free_software entities by monthly Wikipedia readership (96 views/month).[2]

Key Facts

  • OPUS's instance of is recorded as free software[3].
  • OPUS's instance of is recorded as repository software[4].
  • OPUS is operated by Cooperative Library Network Berlin-Brandenburg[5].
  • University of Stuttgart is named after OPUS[6].
  • OPUS's copyright license is recorded as GNU General Public License[7].
  • OPUS's programmed in is recorded as PHP[8].
  • OPUS's software version identifier is recorded as 4.6[9].
  • OPUS's software version identifier is recorded as 4.5[10].
  • OPUS's software version identifier is recorded as 4.4.5[11].
  • OPUS's software version identifier is recorded as 4.6.2[12].
  • OPUS's software version identifier is recorded as 4.6.1[13].
  • OPUS's software version identifier is recorded as 4.6.3[14].
  • OPUS's software version identifier is recorded as 4.7[15].
  • OPUS's software version identifier is recorded as 4.7.0.4[16].
  • OPUS's software version identifier is recorded as 4.7.0.5[17].
  • OPUS's software version identifier is recorded as 4.7.0.6[18].
  • OPUS's software version identifier is recorded as 4.7.0.7[19].
  • OPUS's software version identifier is recorded as 4.7.0.8[20].
  • OPUS's software version identifier is recorded as 4.7.1[21].
  • OPUS's software version identifier is recorded as 4.7.1.1[22].
  • OPUS's software version identifier is recorded as 4.7.1.2[23].
  • OPUS's software version identifier is recorded as 4.8[24].
  • OPUS's software version identifier is recorded as 4.8.0.1[25].
  • OPUS's software version identifier is recorded as 4.8.0.2[26].
  • OPUS's software version identifier is recorded as 4.8.0.3[27].

Why It Matters

OPUS ranks in the top 9% of free_software entities by monthly Wikipedia readership (96 views/month).[2] OPUS is known by 3 alternative names across languages and contexts.[28]

Related Entities

free software PHP

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . Open Hub. Retrieved . openhub.net. Provenance: wikidata.org.
  7. [9] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  8. [10] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  9. [11] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  10. [12] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  11. [13] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  12. [14] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  13. [15] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  14. [16] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  15. [17] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  16. [18] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  17. [19] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  18. [20] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  19. [21] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  20. [22] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  21. [23] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  22. [24] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  23. [25] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  24. [26] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.
  25. [27] ↑ . github.com. Retrieved . github.com. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). OPUS. Retrieved May 3, 2026, from https://4ort.xyz/entity/opus-q2007840
MLA “OPUS.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/opus-q2007840.
BibTeX @misc{4ortxyz_opus-q2007840_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{OPUS}}, year = {2026}, url = {https://4ort.xyz/entity/opus-q2007840}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): OPUS — https://4ort.xyz/entity/opus-q2007840 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/opus-q2007840 · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 10d ago · Github-wiki-bot bot · 2026-05-20 view diff on Wikidata ↗
    Software version identifier → 4.6, 4.5, 4.4.5 +33
    "/* wbeditentity-statements-single-property-update:1||2 */ [[Property:P348]], Update with GitHub data ([[:toollabs:editgroups/b/CB/96c383e09430|details]])"
  2. 17d ago · Github-wiki-bot bot · 2026-05-13 view diff on Wikidata ↗
    Programming language → —
    Instance of → free software, repository software
    Has use → institutional repository
    Named after → —
    + 12 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-statements-single-property-update:1||2 */ [[Property:P348]], Update with GitHub data ([[:toollabs:editgroups/b/CB/442ca2bc2a29|details]])"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.