According to @StockMKTNewz, CNBC reports that Amazon-owned Zoox has started allowing select San Francisco users to hail its driverless vehicles (source: CNBC). According to @StockMKTNewz, CNBC also notes that riders can sign up for the Zoox Explorers program to take free rides (source: CNBC). The post explicitly references AMZN, highlighting company-level exposure to the robotaxi pilot, and does not mention any cryptocurrency or blockchain linkage (source: @StockMKTNewz; CNBC).