Sign matters!
The problem is kind of dumb when you think about it. You either dump everything on-chain that gets expensive fast. Or you keep the data somewhere else, cheaper but then you lose trust.
What Sign does is simple.
You keep a tiny piece on-chain just enough to prove something is legit and the heavy file lives somewhere else like IPFS or Arweave. Then you connect them
That’s it
You still have proof, but without stuffing the chain full of data.
And honestly, that changes how you build things. You’re not constantly worrying about cost or weird storage tricks. You just store the file where it makes sense… and keep proof that it’s real without it taking up space.
Feels small but it’s not