waxwing on Nostr: Thanks. In the linked description of the Strata bridge, it has a very terse "a bridge ...

Thanks. In the linked description of the Strata bridge, it has a very terse "a bridge operator fronts its own funds to him in a withdrawal transaction" with no further elucidation. In BitVM-bridge (section 6.1and 7) they talk about it as: step 1, Bob burns on rollup/sidechain, then creates peg-out bitcoin tx that any operator can complete. Then somehow as part of the proof that their claim of the peg-in utxo is valid, there's included that a valid peg out of a burn occurred. But I guess you're saying that, like with any sidechan/rollup we can just use swaps, like done e.g. on Liquid, right?