http://wtsfijvpw5i7edbs3pn4bwgw7iembhzi45ohlpf3tcarek7yackg5tad.onion/bible/content/bible/cryptocurrencies/bitcoin/sending_bitcoins/index.html
If you would go exchange -> Electrum on Tails -> DNM, it would be pretty obvious that you are the one who sent the bitcoins to the DNM (assuming that the DNM deposit address is known), because nobody would give the DNM deposit address to the Bitcoin seller when buying the bitcoins.