I’m all new to bitcoin and want to make some research for a datascience mission.
I am focussing on the visualization of some chains of transactions the place I may visualize customers by some shade scheme or pictogram.
I collect that in 2013 the so-called mixers began to happen which allowed totally different customers to characteristic as totally different inputs of a transaction.
My query is : can I assume that earlier than 2013 in any transaction the totally different inputs all belonged to a single person?
If not was it the case in 2010 or in 2009?
