This is definitely food for thought for anyone that receives emails from Copytrack; it's sad to say that, even if photographers signed up to use their service in good faith, it looks like both image creators and those who infringed (not going to touch on innocent/unwitting etc.) are possible victims of what looks like a large-scale fraud.
https://davidgerard.co.uk/blockchain/2018/11/27/copytrack-a-german-photography-ico-thats-getting-sued-over-where-it-sent-the-money
https://davidgerard.co.uk/blockchain/2018/11/27/copytrack-a-german-photography-ico-thats-getting-sued-over-where-it-sent-the-money