Mastercard is evaluating a strategic investment in blockchain infrastructure firm Zerohash following unsuccessful acquisition negotiations. Sources indicate that the two companies previously discussed a full acquisition, with valuations reaching up to $2 billion. However, Zerohash opted to remain independent, ending the acquisition talks. Despite this, discussions on potential investment continue, and Zerohash has expressed its intention to expand its commercial partnership with Mastercard. Mastercard has not commented on the matter.