# HyperTwist Phase J-C validation evidence exports and benchmark fixture packets implementation packet

## Status

`Phase J-C` is now landed locally as the third bounded HyperTwist-native
validation and benchmarking slice.

## Landed surfaces

- validation-evidence export contract
- benchmark-fixture packet boundary

## Code

- extended bundle and evidence/fixture contract structs in
  `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingValidationBenchmarkLibrary.h`
- bundled contract data and query functions in
  `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingValidationBenchmarkLibrary.cpp`
- runtime accessors in
  `UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingRuntimeLibrary.h`
  and
  `UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingRuntimeLibrary.cpp`
- focused automation in
  `UnrealHyperTwist/Source/UnrealHyperTwist/Tests/HyperTwistValidationPhaseJCEvidenceFixtureContractTest.cpp`

## Boundaries preserved

- keep exports and fixture packets first-party and runtime-evidence local
- do not widen into telemetry ingestion or generic artifact warehouses
- do not widen into broad CI artifact pipelines
- do not widen into cross-product fixture registries

## Canon result

- `Phase J-A`, `Phase J-B`, and `Phase J-C` are now landed as the first
  bounded validation and benchmarking scaffold in current code
- the then-next deliberate seam, `Phase J-D` validation run summaries and
  operator review packets, is now also landed
