Hmph. I had to look that up. "mixers." Interesting.The concepts of dark ships, dark fleet and ship-to-ship transfers are interesting.
As you are most likely aware, BTC is pseudo-anonymous and with the recent targeting of crypto mixers to obfuscate ownership by FinCEN, cannot have it's "AIS" spoofed.
https://www.coindesk.com/policy/202...me-crypto-mixers-as-money-laundering-concern/
https://en.wikipedia.org/wiki/Cryptocurrency_tumbler
So these things make BTC anonymous again?