[tz] Fwd: Bulletin C number 57

[Paul Eggert]

On 1/8/19 12:02 AM, Martin Burnicki wrote:
> Maybe one of you should make a concrete proposal to Christian Bizouard
> and tell him which text should be added in which places to meet your
> requirements.
>
> I'm not familiar with those licensing details, and I'm afraid the folks
> at IERS aren't, either.

I looked into this while the US federal government was shut down, and it 
turns out that it's more complicated than merely adding a notice in the 
IERS file. One cannot simply translate the IERS file to the NIST file, 
as the NIST file has information that the IERS file lacks, namely, the 
last time that the data were changed. Although this could be worked 
around, the workaround would add complexity that I'd rather avoid.

So any proposal should involve not only adding a liberal copyright 
notice, but also changing the IERS file's data format, which would be a 
bigger deal. I don't know whether the IERS would go along with that.