The Software Package Data Exchange® (SPDX®) Specification Version 2.3

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With thanks to Adam Cohn, Alan Tse, Alexios Zavras, Andrew Back, Ann Thornton, Basil Peace, Bill Schineller, Bradlee Edmondson, Bruno Cornec, Ciaran Farrell, Daniel German, David Edelsohn, David Kemp, David A. Wheeler, Debra McGlade, Dennis Clark, Dick Brooks, Ed Warnicke, Eran Strod, Eric Thomas, Esteban Rockett, Gary O'Neall, Guillaume Rousseau, Hassib Khanafer, Henk Birkholz, Hiroyuki Fukuchi, Jack Manbeck, Jaime Garcia, Jeff Luszcz, Jilayne Lovejoy, John Ellis, Jonas Oberg, Kamsang Salima, Karen Copenhaver, Kate Stewart, Kevin Mitchell, Kim Weins, Kirsten Newcomer, Kris Reeves, Liang Cao, Lon Hohberger, Marc-Etienne Vargenau, Mark Gisi, Marshall Clow, Martin Michlmayr, Martin von Willebrand, Mark Atwood, Matija Šuklje, Matt Germonprez, Maximilian Huber, Michael J. Herzog, Michel Ruffin, Nisha Kumar, Norio Kobota, Nuno Brito, Oliver Fendt, Paul Madick, Peter Williams, Phil Robb, Philip Koltun, Philip Odence, Phillippe Ombredanne, Pierre Lapointe, Rana Rahal, Robert Martin, Robin Gandhi, Rose Judge, Sam Ellis, Sameer Ahmed, Scott K Peterson, Scott Lamons, Scott Sterling, Sean Barnum, Sebastian Crane, Shane Coughlan, Steve Cropper, Steve Winslow, Stuart Hughes, Thomas F. Incorvia, Thomas Steenbergen, Tom Callaway, Tom Vidal, Toru Taima, Venkata Krishna, W. Trevor King, William Bartholomew, Yev Bronshteyn, Yoshiko Ouchi, Yoshiyuki Ito, Yuji Nomura and Zachary McFarland for their contributions and assistance.