This doesn’t sound self custodial to me. You don’t even control the keys.
I have the same question. From a technical perspective, I can’t quite understand how Spark describes itself as nodeless and self-custodial. I hope someone can clarify this for me.
https://github.com/CodyTseng/jumble/pull/638#issuecomment-3477436664
Discussion
If my understanding of Spark is correct, then it’s quite risky that many people trust Spark’s claims of security and self-custody. I can accept sacrificing some security for faster transactions and lower fees, but we shouldn’t let users believe it’s completely safe and become complacent.
It sounds to me like someone else holds the keys and you’re one of the required multisig keys. But so many questions about the spark ledger and who maintains that.