[fitsbits] DOI keyword usage for FITS? {External}

[Steve Allen]

On Thu 2023-08-03T14:44:53-0400 Demitri Muna via fitsbits hath writ:
> Where is the point of failure here? Can you provide a few examples?

https://ui.adsabs.harvard.edu/abs/1955AJ.....60R.171M/abstract

The DOI there does not resolve, and I was told
"University of Chicago Press has not maintained the DOI"
and
"UCP transferred ownership of the DOIs to IOP and in some cases then
reused them"

https://www.cambridge.org/core/journals/transactions-of-the-international-astronomical-union/article/4-commission-des-ephemerides/8C6EE6563F56F8B0D2C33E4496F61807

The DOI there does not resolve

It looks like DOI only works if somebody keeps paying the rent.
This is not a limitation I want to find in FITS files.

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