Which Premier League club has the most crypto-currency products?
Since crypto-currency products are based on a public ledger, known as the blockchain, Protos was able to determine: Lazio, Manchester City, Porto, and Santos appeared to generate the most sales the fan tokens to have generated the most revenue were Lazio's - up to $130m
How much money have football clubs spent on crypto 'fan tokens'?
Football clubs have potentially made hundreds of millions of pounds selling controversial crypto "fan tokens". Analysis commissioned by BBC News estimates more than £262m ($350m) has been spent on the virtual currencies. Some of the tokens are marketed as offering real-world perks to the buyer.
Should Premier League clubs offer fan tokens?
But critics say these perks are insignificant - one offered the chance to vote for songs to be played in stadiums - and clubs have insufficient protection for supporters. So far, across the five major European leagues 24 different clubs have launched or are considering fan tokens, including eight Premier League sides.
How much money do the top 13 Premier League clubs hold?
The value of tokens held by the top 13 clubs together exceeds $1.9bn - but individual buyers currently hold only $376m worth. On average, clubs control 80% of their fan tokens' supply. "Clubs themselves must balance not selling too much at once" Mr Canellis said.