They weren't payment confirmations - they were public merchant checkout pages that were linked from other pages on the internet. http://blog.coinbase.com/post/

They weren't payment confirmations - they were public merchant checkout pages that were linked from other pages on the internet. http://blog.coinbase.com/post/47198421272/data-on-merchant-pages http://blog.coinbase.com/post/47198421272/data-on-merchant-p...