[API-users] did identifiers change btwn the old and new gbif?

Markus Döring mdoering at gbif.org
Fri Jun 27 11:24:39 CEST 2014

Hi Ken-ichi,

we try to keep GBIF ids stable by comparing the triplet of institutionCode, collectionCode & catalogNumber and/or the occurrenceID of previously and currently indexed records.
In your case the triplet is always the same, so the old GBIF id 606641999 should have remained. We'll investigate what is going on here, thanks for spotting!


On 27 Jun 2014, at 02:57, Ken-ichi <kenichi.ueda at gmail.com> wrote:

> It looks like http://www.inaturalist.org/observations/64364 is indexed
> at both http://data.gbif.org/occurrences/606641999 and
> http://www.gbif.org/occurrence/891075685. Does this mean the same
> records have completely different identifiers in the old and new
> systems? Additionally, do identifiers change every time an external
> source gets indexed, or was this switch just due to migration to a new
> data store? Please tell me they don't change on every index. I'm
> trying to use the API to check whether iNat observations have been
> indexed by GBIF and the link back to the GBIF version on each
> observation page. If the identifiers change, that means the links will
> break every time you re-index us.
> -ken-ichi
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