I asked this on SO first. There are no relevant docs.

I use a "trace id" in logs. Advice here and on SO is to get a traceid from HttpContext.TraceIdentifier.

But when the framework creates a ProblemDetails for a validation failure, it uses Activity.Current?.Id.

Examples:

var traceId1 = Activity.Current?.Id;        // OWZ4G27FO6UWH:00000003
var traceId2 = HttpContext.TraceIdentifier; // 00-2a8ee37903e657e3a95b41178dafc56e-91b02006afcf3133-00

I'm worried that my logs use one type, and the framework uses another - and when I need to analyse logs I'll have a problem.

Which does the framework typically use? And which should I use?