There are a fair few murals out there that have been painted by a known artist along with the local community. This could be schools, local groups, etc. We have a naming convention for unknown artists; if there isn’t one for community assistance, can we formalise one? If so, I suggest this:
Community - [City]
This would follow the same naming convention for unknown artists of Unknown - [City]
I believe this is common enough to warrant this. Off the top of my head, I can think of at least 5 public murals in the West Midlands region that could benefit from having this.
If this is a really common thing, then I guess we could break it down even further, by having other categories: School - [City], Local Artists [City], etc. But for now, just having Community- [City] will suffice.
I know we can just add the contribution to the description, and yes, we absolutely must. But I believe it is also important to give the Community credit in the Artist field: as they contributed to the art, so they should get credit.