Ultimately I don't think you will ever be able to rely on technology to validate authenticity . Even if you had a live human expert checking you off, you could still feel you didn't really give your all even though they were satisfied. There is no such thing as being able to objectively verify that you fully engaged in the spirit of a thing.

I also think your thinking on tick marks is backwards. If you're struggling to "fully do" a goal, you should absolutely be giving yourself tick marks. That way the desire to to maintain the streak helps keep you in the rhythm. Habit trackers aren't trying to "perfectly record your activities" - they use psychology to push you into building a habit. Once you get into the stage where the habit is established but you want to push yourself - then you get into detailed food and workout journaling that will let you track intensity over time. But if you aren't making it to the gym the intensity doesn't matter yet.