That is what i am querying.

LN by nature is undisputable. But Zap depends on a custodian architecture (right?) To operate

Zap is the alternative to bitcoin explorer (since you cant verify LN transaction on an explorer but you can use zap as an alternative)

Im wondering once zap scale up can "fake" zap be provided.

Im imagining future non friction bridge between mainnet btc n LN which uses zap as a proof of transaction