Skip to main content
The Execution Lifecycle describes the lifecycle at the domain level. The Runtime Pipeline is how that lifecycle is actually implemented, as an ordered sequence of Runtime Components.

​
Definition

From the platform glossary:
Runtime Pipeline — An ordered sequence of Runtime Components that transform an immutable ExecutionTransaction. Runtime Component — A deterministic execution stage participating in the Runtime Pipeline. Each component accepts an immutable transaction and returns a new immutable transaction.
This “accept immutable, return immutable” contract is what guarantees no pipeline stage can corrupt or silently mutate a transaction mid-flight — every stage’s output is a distinct, new object.

​
Pipeline stages

ExecutionComponent → VerificationComponent → ReceiptComponent → ExecutionTrustPipeline → ExecutionTrustRecordBuilder
  • ExecutionComponent performs the authorized execution once a Decision has approved it.
  • VerificationComponent independently checks recorded evidence against the execution.
  • ReceiptComponent generates the cryptographic attestation once verification succeeds.
  • ExecutionTrustPipeline and ExecutionTrustRecordBuilder assemble everything into the final immutable ExecutionTrustRecord.
See Architecture → Runtime Architecture for how this fits into the broader orchestration chain, from ExecutionTrustApplication down to this pipeline.

​
Where this lives

Pipeline implementation is in the runtime package, under packages/runtime/src/{components,stages,services}.
VerificationComponent and ReceiptComponent are real, exported classes (packages/runtime/src/components/), but RuntimeFactory.create (packages/runtime/src/RuntimeFactory.ts) only adds TrustChainValidationComponent and ExecutionComponent to the RuntimeBuilder’s pipeline. Verification and Receipt generation happen as separate, direct calls to VerificationService/ReceiptService from ExecutionTrustApplication.execute() — not as stages the Runtime’s own pipeline runs. See Packages → runtime for the exact call chain.