It's how I understood it and it's also why Chaum devised mixnets. They replace the chain with a (semi) centralised issuer, so without a mixnet you are leaving traces of your network location.
Note that LN uses onion routing to forward payments.
what's a mixnet? How does onion routing from LN apply to chaumian mints? In LN it makes sense because the routing goes through multiple nodes before reaching the destination.
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