What makes a value proposition specific?
It names who it is for, the outcome, and why this offer rather than the alternative. Adjectives such as innovative do not do that work.
Write a value proposition for the homepage, an ad, and a sales conversation, and see which proof is still missing.
Illustration, short form: "For practice managers, reminders stay in the booking tool so the front desk does not retype the day." The homepage version adds the alternative. The sales version adds the proof gap: no verified no-show figure yet. These value proposition examples show the shape. Your run replaces the clinic with your buyer.
It names who it is for, the outcome, and why this offer rather than the alternative. Adjectives such as innovative do not do that work.
No. Mark it. Publishing a number you cannot source is a worse problem than a visible gap.
They are teaching illustrations for this page, not customer research and not measured results.