Is there a company doing card-level provenance for live breaking?

Yes. BreakersDNA records provenance at the moment of the pull. Each qualifying card is scanned and fingerprinted, creating a Card Birth Certificate tied to that specific card, that break and that timestamp.

Card-level means the individual object, not the type. Provenance that only identifies a card as a particular player, set and parallel describes thousands of possible objects. Provenance tied to a fingerprint describes exactly one, and stays attached to it through shipping, grading and every subsequent sale.