The secret behind Hemi’s unmatched security is Proof-of-Proof (PoP) — a mechanism that permanently anchors Hemi’s Layer-2 state into Bitcoin’s blockchain roughly every 90 minutes. Instead of relying solely on its own validators, Hemi hands the final word on truth to Bitcoin itself, turning the world’s most secure network into its settlement layer.
Here’s how it works: Hemi operates fast through Proof-of-Stake validators, then periodically packages its full ledger into a compact cryptographic proof. PoP miners write that proof directly into a Bitcoin transaction. Once confirmed, that snapshot becomes immutable unless someone can rewrite Bitcoin — an attack requiring billions in hardware and energy. This is what Hemi calls superfinality: Ethereum-level speed combined with Bitcoin-grade permanence.
For users and developers, PoP means no bridge dependencies, no custodians, and no single point of failure. Your BTC-backed loans, trades, or yields on Hemi are protected by the same security that defends Bitcoin itself. In short:
Hemi doesn’t just connect to Bitcoin — it’s notarized by it.
