Weird "10.8888/" DOI

[danieleongari]

I wonder why such weird DOI sometimes exist:

10.8888Ja909263x.Isotherm2
10.8888j.cej.2011.01.096.isotherm4b

In first case it should be 10.1021 (ACS), and in the second case 10.1016 (ScienceDirect).
Moreover, in the second case another duplicated entry exists with the right DOI: 10.1016j.cej.2011.01.096.isotherm4b.

[dwsideriusNIST]

You identified a "secret" set of papers in the database. Those "papers" were added to expedite demonstrations of the database in its early days. I needed a way to expedite searches to demonstrate the database to stakeholders, so I created some dummy entries that all had ZIF-8 or Zeolite 5A isotherms with N2 and CO2 isotherms.

I haven't used that secret search in years, though, so I'll reevaluate then probably delete them.