7 November 2018: user interface changes. All functionality remains the same except data and screen are cleared on start-up.

SDQblockchain

  UserID Password  
Enter a new row manually
or edit an existing row. SHOW 
Import a file to create a cohort or add to it.
Erase the cohort display. SHOW 

Field0 Field1 Field2 Field3 Field4 PlusIID
HIDE

Remote cohort storage/blockchain function

Note to those subject to European Union General Data Protection Regulation (GDPR). GDPR becomes enforceable from 25 May 2018. The storage of strongly encrypted personal data by us in a way that we cannot possibly decrypt it and confirmed by blockchain should qualify as "data protection by design". If you have any reservations about our approach, please do not use this software - use SDQcohort instead.
Note to users of this remote cohort storage/blockchain function.
If you forget your cohort name, we have no way whatsoever of advising you of it. It is not possible to decrypt or identify your cohort without the EXACT cohort name and UserID (including capitalisation)!

Cohort name