ckBTC and KYT Compliance

Yes this helps

Curious about “quarantine”, why not just send it back?

If the ckBTC minter sends out “tainted bitcoins”, it risks being classified as a spreader of tainted bitcoins itself.

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It has been 4 months since ckBTC minter switched from the old KYT canister to the Bitcoin Checker canister, which has been operating smoothly.

In the meanwhile old KYT canister to the best of my knowledge has not been used at all by anybody. So the plan is to ask the NNS to uninstall it. I’m posting here to give people a heads-up before submitting the proposal (probably Friday). Thanks!

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How does the ckBTC minter react (going from BTC → ckBTC) if it receives a failure from the SDN list check?

I’m assuming ckBTC is hooked up to the Bitcoin Checker canister and uses it for all inbound BTC → ckBTC conversions?

How does the ckBTC minter react (going from BTC → ckBTC) if it receives a failure from the SDN list check?

If a transaction fails at the the SDN list check, it will be suspended, i.e., the minter will not touch it any more. If a user is worried about this, he/she can check the SDN list by themselves beforehand, either manually or by calling the Bitcoin Checker’s interface.

I’m assuming ckBTC is hooked up to the Bitcoin Checker canister and uses it for all inbound BTC → ckBTC conversions?

Yes.

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