They are not linkable for the public observer as amounts are blinded on Liquid and additionally Taproot Swaps generally made swap transactions indistinguishable from any other regular transaction.
BUT we do have the link! Therefore, privacy on Lightning is a bit better as one can't tell with certainty where a Lightning transaction was sent from.
That being said, Boltz respects privacy but is NOT a privacy solution or a substitute for e.g. coinjoins.
Thanks for info. But you are not retaining a database of these utxo links.. or are you?
If one were to use Boltz over Tor to swap some bitcoin into liquid, then at a later date (new Tor connection), swap some of that liquid back to bitcoin, would Boltz hypothetically be able to make any connection between the original and final bitcoin?
I think for chain swaps on utxo level, yes. Boltz does have the utxo links across btc/lbtc. Tor is not really relevant here, that just obscures your ip network connection. If the original utxo has some kyc linked to it, boltz (not the public) can link this to your final swapped btc utxo.
However an LN->LBTC->BTC swap does hide the input utxo… even for Boltz
Thank you for that info 🙏 Hoping for a possible use case to combine utxos into a single utxo without linking histories. Coinjoins while in liquid might be a very useful development. And thank you very much Boltz for your excellent service! 🙏
Probably just use an LN node to open separate (simple private taproot) channels for each utxo. Get a large inbound liquidity channel and send it ALL across over LN. Could be done from one node if you allow circular payments. Close channels over different time periods and you get one chunky utxo and some toxic change you should not combine..
I might be overlooking something though .. no guarantees... Dyor!
