Most teams I talk to still treat Sign Protocol like a basic attestation registry. That’s surface-level thinking. In practice, it behaves more like reusable security clearances. You verify something once, and instead of dragging raw data across chains, you carry a signed proof that others can trust.
Here’s where it gets interesting. Cross-chain systems are messy constant state mismatches, duplicated checks, broken assumptions. Sign cuts through that by letting multiple apps rely on the same verified statements. But I still wonder who governs the issuers? And what happens when those attestations go stale?
That’s the trade-off.