Implementing Proof of Execution
A practical guide to emitting and verifying proof of execution for a multi-step workflow.
February 10, 2026
Model the steps
Start by enumerating the required steps of your workflow and their expected order. Proof of execution proves both completion and sequence, so the step model is the contract you will verify against.
Emit a proof per step
As each step completes, commit to its data with a hash and emit a signed proof artifact. Link each step proof to the previous one so the sequence is verifiable, and emit a final completion proof when the last step runs.
Verify completeness and order
A verifier checks each step proof (integrity, signature, authority, timing) and confirms the linkage. If a step is missing, altered, or out of order, verification fails — so incomplete or tampered processes cannot masquerade as complete.
Key takeaways
- Define the required steps and their order first.
- Emit a linked, signed proof as each step completes.
- Verification confirms both completeness and sequence.
Related concepts
Related resources
See Proof Infrastructure in action
Inspect a proof artifact and run independent verification in the live demo.