copyleft

technique in copyright law of granting freedoms over copies of a work, and over derivative works by using a share-alike provision
Intangible practice Q133475
Press Enter Β· cited answer in seconds

copyleft

Summary

copyleft is a practice[1]. copyleft draws 1,178 Wikipedia views per month (practice category, ranking #1 of 7).[2]

Key Facts

  • copyleft is credited with the discovery of Richard Stallman[3].
  • copyleft's instance of is recorded as practice[4].
  • copyleft's movement is recorded as free software movement[5].
  • copyleft's movement is recorded as free-culture movement[6].
  • copyright is named after copyleft[7].
  • left-wing is named after copyleft[8].
  • copyleft's based on is recorded as copyright[9].
  • copyleft's logo image is recorded as Copyleft.svg[10].
  • copyleft's developer is recorded as Software Freedom Conservancy[11].
  • copyleft's developer is recorded as Q48413[12].
  • copyleft's subclass of is recorded as economics of property rights[13].
  • copyleft's has use is recorded as free software[14].
  • copyleft's has use is recorded as free content[15].
  • copyleft's Commons category is recorded as Copyleft[16].
  • copyleft's pronunciation audio is recorded as LL-Q9288 (heb)-Uziel302-Copyleft.wav[17].
  • copyleft's opposite of is recorded as copyright[18].
  • copyleft's Unicode character is recorded as πŸ„―[19].
  • copyleft's Freebase ID is recorded as /m/01t80[20].
  • copyleft's topic's main category is recorded as Category:Copyleft[21].
  • copyleft's described at URL is recorded as https://[email protected][22].
  • copyleft's described by source is recorded as Open Science Thesaurus[23].
  • copyleft's described by source is recorded as Dictionnaire des biens communs[24].
  • copyleft's partially coincident with is recorded as open educational resource[25].
  • copyleft's EncyclopΓ¦dia Britannica Online ID is recorded as topic/copyleft[26].
  • copyleft's different from is recorded as Kopimi[27].

Body

Works and Contributions

copyleft is credited with the discovery of Richard Stallman[3].

Why It Matters

copyleft draws 1,178 Wikipedia views per month (practice category, ranking #1 of 7).[2] copyleft has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[28] copyleft is known by 58 alternative names across languages and contexts.[29]

References

Programmatic citations β€” every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . lingualibre.org. lingualibre.org. Provenance: wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . Freebase Data Dumps. wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . gnu.org. gnu.org. Provenance: wikidata.org.
  21. [23] ↑ . data.loterre.fr. Retrieved . data.loterre.fr. Provenance: wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] ↑ . Wikidata sitelinks. wikidata.org.
  3. [29] ↑ . Wikidata aliases. wikidata.org.

πŸ“‘ 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). copyleft. Retrieved May 3, 2026, from https://4ort.xyz/entity/copyleft
MLA “copyleft.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/copyleft.
BibTeX @misc{4ortxyz_copyleft_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{copyleft}}, year = {2026}, url = {https://4ort.xyz/entity/copyleft}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): copyleft — https://4ort.xyz/entity/copyleft (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/copyleft Β· Last refreshed: