[An] SPDX file consists almost exclusively of data collected from original sources, and copyright law.... doesn't provide my copyright protection at all for aggregation of otherwise available data. In essence, an SPDX file may not adequately constitute a 'work of authorship' that warrants copyright protection.
I'd suspect strongly that there *is* an arrangement copyright on the arrangement someone makes. I hope SPDX has done something to deal with this fact.
Arrangement copyrights are usually pretty thin, but I do think that arranging data into an SPDX file is a creative expression. It's clear from reading the spec that there's different ways to arrange the same data into an SPDX file. -- -- bkuhn