Proof of Blockchain On September 11th 2013 hundreds of thousands of Catalonians joined hands to form a human chain 250 miles (400km) long, running from the border with neighbouring France to the region of Valencia in a call for Madrid to recognise Catalan independence. #art #photography #photostr #artstr #picoftheday https://image.nostr.build/a6a6e32292828eaacb16a169990fb027643a26885f12d2da0112488c7dea7823.jpg https://nostr.download/303927f66370dd8ab13e27ad3d06c610f525af6a3071b98b489cf663842c95e5.webp https://nostr.download/24ae07230edfcc886449ddfc382f5db5e16734889e3fa9e9ce93ccf5f05d56cf.webp