Implementing an Asynchronous 'Kill Switch' & Deterministic Rollbacks within a 2-Second Block Time

Sara Teller — Mon, 20 Jul 2026 23:56:11 +0000

To eliminate institutional counterparty risk, GovOn utilizes a 'Tripartite Kill Switch'. If the L2 physical execution data (ZK-Proof) doesn’t perfectly match the L0 banking fiat instructions down to the final decimal, the smart contract must trigger a hard rollback—zero capital moves.
My challenge with XDC’s extremely fast XDPoS (2-second finality): How do you orchestrate a deterministic rollback when querying an external banking oracle right before the state commits?
Do you rely on a two-step ⁠commit/reveal⁠ pattern, or are there specific Hook/WASM capabilities on XDC that allow a transaction to evaluate external conditions and revert gracefully without burning excessive gas for failed states?

Developers Forum for XinFin XDC Network: Sara Teller

Implementing an Asynchronous 'Kill Switch' & Deterministic Rollbacks within a 2-Second Block Time