Open Content

“Open means anyone can freely access, use, modify, and share for any purpose (subject, at most, to requirements that preserve provenance and openness).” - The Open Definition

Open Source Dharma lineages openly share teaching content, in a way that conforms to the standard above, which itself comes out of the open source software movement.

https://en.wikipedia.org/wiki/Creative_Commons_license

The “most open” Creative Commons Licenses meet this definition. With these licenses one can share content openly to the public domain, the most open possible license, and/or can require attribution (provenance), and/or require that others share any derivative content under a similarly open license, known as share-alike or copyleft.