P.S.
If services like ChipMixer operated based on blinded bearer certificates, then they'd be in many ways superior to both of the above mixing methods. Someone should work on this.
How exactly is it possible to obfuscate the connection between i/p & o/p for Mixer operator using
blinded bearer certificate?
With other mixer it would be hard.
With ChipMixer it is possible. We already remove onchain connection between inputs and outputs. Blinded bearer certificates would hide it from us. For example you deposit and instead of chip you get voucher. You swap voucher for blinded bearer certificate. After some time you redeem blinded bearer certificate for chip. ChipMixer cannot link certificate they give you with certificate you redeem because it is blinded.
How to exchange Chips as Blinded Bearer Certificates without trusting a third party for escrow? Also, vouchers need to be validated as honest one by some trusted third party too. We do not have a smart contract here to automate the whole process. No?