Engineering
How the network is built: execution, signing, settlement and verification.

Engineering, 8 Nov 2026
Approval at the key: hardware signing in SQRL's settlement flow
On SQRL, approval happens where it matters most: on the device that holds the key. This is how hardware signing connects to a Bitcoin anchor and a replayable contract result.

Engineering, 8 Nov 2026
Same input, same result: deterministic execution on SQRL
If two independent nodes receive the same contract, call, prior state and Bitcoin context, they must produce the same result. This is how SQRL makes that true by design.

Engineering, 8 Nov 2026
The verification path behind every SQRL settlement
Every node on SQRL has to reach the same answer from the same inputs. This is the path from a signed instruction to a result another node can replay, and where XRB fits into it.