servername.OH:providername:histogramname:YYYYMMDDhhmmss:counter
Where servername is the name of an OH (IS) server, providername is the name of the provider who published the histogram, histogramname is a name describing the histogram and YYYYMMDDhhmmss is the time when the histogram was published. Counter is a 'collision counter' used to make the identifier unique, the value of this counter does NOT imply a specific ordering among histograms with otherwise identical identifiers.
The histogram providers publish their name in the OH (IS) server which they belong to upon construction, the name is published in an ISInfoT<bool> information type with the following name:
servername.provider:providername
Where servername is the name of an IS server, providername is the name of the provider who is activated. The information type is removed from the server when the provider is destroyed.