The following licenses are currently maintained through GCLv1:

GCLv1 ARR »

"All Rights Reserved" - asserting copyright ownership and protection.

Appendix »

GCLv1 SRR »

"Some Rights Reserved" - allowing re-use under certain terms.

GCLv1 NRR »

"No Rights Reserved" - assigning ownership of content to the public, relinquishing rights.