That's not solid planning though, specially in bitcoin market where it has been proven already that it can have long bear markets where price keeps going down instead of going up. Then you end up selling a bigger percentage of what you have to get the same fiat value out. I'm talking about a period like 2018 for example.

I would also not call it "passive income", that is more like slow liquidation of your investment. A passive income shouldn't involve your initial capital melting away but instead you should still be able to keep the 1BTC and still earn the annual $100k.
Assuming $1 mil price, that makes it a 10% profit which is possible without having to touch the capital.

That's not solid planning though, specially in bitcoin market where it has been proven already that it can have long bear markets where price keeps going down instead of going up. Then you end up selling a bigger percentage of what you have to get the same fiat value out. I'm talking about a period like 2018 for example.

I would also not call it "passive income", that is more like slow liquidation of your investment. A passive income shouldn't involve your initial capital melting away but instead you should still be able to keep the 1BTC and still earn $100k.