The SPACE blockchain can be used for storing data in Key-Value pairs.

There are now guides for doing this with Spacecoind and Spacecoin-QT:

- Write a Key-Value pair: https://guides.spaceworks.co/Write-A-Key-Value-Pair.html

- Read a Key-Value pair: https://guides.spaceworks.co/Read-A-Key-Value-Pair.html