[Cod-bugs] Questions about COD

[Saulius Gražulis]

On 2023-04-04 11:35, HERBET Marie-Emilia wrote:
>
> Thank you for all the information provided below. I get back to you 
> with another question regarding COD. In the framework of our project 
> aiming at building up a data repository selection tool for 
> reasearchers, I would like to know if COD ID has the same features and 
> role as a DOI. In other terms, does it act a permanent identifier that 
> can be cited and accessed even if the URL changes?
>
Yes, indeed, the COD IDs are stable permanent IDs. Even when the data 
are no longer available (e.g. the structure is retracted), the ID stays 
and the metadata are further available. The COD IDs function as any 
other permanent IDs required to identify a data record, e.g. Archival 
Resource Keys (ARK), Handle identifiers, URNs; and, yes, DOIs are in the 
same category (except that you need to pay money to get DOIs assigned :/ ).

In addition to that, COD URLs (which are actually URIs) of the form 
'https://www.crystallography.net/cod/2000000.html' or 
'https://www.crystallography.net/cod/2000000.cif'are intended to remain 
stable into the future and can be used as COD structure identifiers.

> Regarding my previous question related to licenses, the idea was not 
> to promote copyright but rather to ensure that structures can be 
> freely reused and cited using for instance CCBY license instead of 
> depending on the license of the paper in which the structure is 
> described (which often entails copyright rules applied by publishers.)
>
Well, this was discussed in the COD AB, and the current collegial 
decision is to put CC0 in the COD.

If you feel very strong about the issue, you can submit a "COD 
Improvement Proposal" to the COD AB (or to the cod-bugs@ list), and I'll 
forward it to the COD AB and promise to organise an on-line discussion 
(you would be welcome to participate in it).

We need to take into account that CC-BY is more restrictive for data 
users than CC0, so we need to look carefully as to not jeopardise their 
work flows. Most (all?) of our users, however, already now cite the 
original works since this is the custom in the academic community, so 
CC-BY might be not that disruptive after all.

Sincerely yours,
Saulius

-- 
Dr. Saulius Gražulis
Vilnius University, Life Science Center, Institute of Biotechnology
Saulėtekio al. 7, LT-10257 Vilnius, Lietuva (Lithuania)
phone (office): (+370-5)-2234353, mobile: (+370-684)-49802, (+370-614)-36366

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