[x] Add an "inaccessible" flag with a ts
[x] When an item exists and the inaccessible flag is set, remove the flag and update the version
[x] When an item does not exists, set the flag and update the version
[x] Do not serve inaccessible items
[x] Add a new endpoint to download the list of all existing fixedSums given the authorizations
[x] LocalDb -> Remove inaccessible items if there is some
[ ] Server after 2 months, remove inaccessibles items and set the server dbLastRemoval config item
[ ] Client request checksums only when server version updated
[x] Add an "inaccessible" flag with a ts
[x] When an item exists and the inaccessible flag is set, remove the flag and update the version
[x] When an item does not exists, set the flag and update the version
[x] Do not serve inaccessible items
[x] Add a new endpoint to download the list of all existing fixedSums given the authorizations
[x] LocalDb -> Remove inaccessible items if there is some
[ ] Server after 2 months, remove inaccessibles items and set the server dbLastRemoval config item
[ ] Client request checksums only when server version updated
[x] Add an "inaccessible" flag with a ts
[x] When an item exists and the inaccessible flag is set, remove the flag and update the version
[x] When an item does not exists, set the flag and update the version
[x] Do not serve inaccessible items
[x] Add a new endpoint to download the list of all existing fixedSums given the authorizations
[x] LocalDb -> Remove inaccessible items if there is some
[ ] Server after 2 months, remove inaccessibles items and set the server dbLastRemoval config item
[ ] Client request checksums only when server version updated