Helix evidence bundle sample
Inspect a small, synthetic in silico evidence bundle with a manifest, provenance receipt, machine-readable evidence, replay report, checksum index, and local verifier.
This sample proves a narrow software property: local hash validation and required-key checks. It does not assert real-world outcomes.
Bundle contract
Manifest, provenance, evidence, replay report, and checksum index stay together.
Local verification
Verify the bundle offline.
Command
node verify.mjsRun this command from the unzipped sample bundle directory. The verifier checks SHA-256 hashes and required JSON keys.
Expected output
Helix sample evidence bundle verification passed.
Verified 5 checksums.
Verified required keys for 4 JSON artifacts.Trust surface
What the sample proves.
Bundle status
Verified
helix.evidence_bundle_manifest.v1
Boundary
Synthetic
In silico only
Replay state
Replayable
Offline verification
Provenance
Replayable
synthetic-decision-workflow-alpha
Artifact anatomy
Files in the bundle.
provenance_receipt.json
provenance
Indexed by manifest.json
evidence.json
machine readable evidence
Indexed by manifest.json
replay_report.json
verification report
Indexed by manifest.json
checksums.sha256
integrity index
Indexed by manifest.json
Policy results
Machine-readable review state.
required manifest fields
Verified
Recorded in evidence.json
synthetic data boundary
Verified
Recorded in evidence.json
offline hash verification
Replayable
Recorded in evidence.json
Checksums
Digest index.
bb0ad4b5c06c32030ce71cc857b000f5a835ac828930e7b90aae487633c1b6af manifest.json
13afc264ec4c391fc765de26ea78e0f9ad200dfc500fce19dda1b23f791fe244 provenance_receipt.json
e124c28ffdb251fda0ec90bf99b4d55c01fb0014cdaf28fa137425f75ddee028 evidence.json
b492028e81fafc9c0aff400a7b86aea4171f1150f986f1a73704062a816499b8 replay_report.json
f3d8455b41d55ecb1130dfa6523d8e82de0e55098d098cb519acafe2845b0f1b README.mdInspectable artifacts
Canonical JSON surfaces.
Raw artifact
manifest.json
{
"schema": {
"kind": "helix.evidence_bundle_manifest",
"version": 1
},
"bundle_id": "helix-synthetic-evidence-bundle-v1",
"bundle_type": "synthetic_in_silico_sample",
"created_at_utc": "2026-05-06T00:00:00Z",
"synthetic": true,
"in_silico_only": true,
"purpose": "Demonstrate the structure and local verification behavior of a Helix evidence bundle.",
"status": "Verified",
"policy_profile": "public-sample-policy-v1",
"required_files": [
"manifest.json",
"provenance_receipt.json",
"evidence.json",
"replay_report.json",
"README.md"
],
"artifact_index": [
{
"path": "provenance_receipt.json",
"role": "provenance"
},
{
"path": "evidence.json",
"role": "machine_readable_evidence"
},
{
"path": "replay_report.json",
"role": "verification_report"
},
{
"path": "checksums.sha256",
"role": "integrity_index"
}
],
"claims_boundary": {
"uses_synthetic_data": true,
"models_software_artifacts_only": true,
"real_world_outcome_claim": false,
"medical_use_claim": false
}
}Raw artifact
provenance_receipt.json
{
"schema": {
"kind": "helix.provenance_receipt",
"version": 1
},
"receipt_id": "prov-synthetic-sample-0001",
"bundle_id": "helix-synthetic-evidence-bundle-v1",
"run_id": "run-synthetic-model-0001",
"generated_at_utc": "2026-05-06T00:00:00Z",
"source": {
"system": "Omnis Helix",
"mode": "synthetic in silico sample",
"workspace_id": "workspace-public-sample"
},
"environment": {
"runtime": "node",
"verifier": "verify.mjs",
"determinism_class": "Replayable"
},
"inputs": {
"dataset_id": "synthetic-decision-workflow-alpha",
"input_hash_policy": "sha256",
"contains_real_world_samples": false
},
"artifacts": [
"manifest.json",
"evidence.json",
"replay_report.json",
"checksums.sha256"
]
}Raw artifact
evidence.json
{
"schema": {
"kind": "helix.machine_readable_evidence",
"version": 1
},
"evidence_id": "evidence-synthetic-sample-0001",
"bundle_id": "helix-synthetic-evidence-bundle-v1",
"run_id": "run-synthetic-model-0001",
"synthetic": true,
"in_silico_only": true,
"decision_workflow": {
"intent_id": "intent-synthetic-alpha",
"constraint_set_id": "constraints-public-sample-v1",
"model_contract": "helix.public_sample_contract.v1"
},
"assumptions": [
"Synthetic identifiers are used for demonstration.",
"Scores are fixture values for verifier and bundle-shape inspection.",
"No real-world outcome is asserted."
],
"scores": [
{
"name": "integrity_completeness",
"value": 1,
"scale": "0_to_1"
},
{
"name": "replay_metadata_present",
"value": 1,
"scale": "0_to_1"
}
],
"policy_results": [
{
"policy": "required_manifest_fields",
"status": "Verified"
},
{
"policy": "synthetic_data_boundary",
"status": "Verified"
},
{
"policy": "offline_hash_verification",
"status": "Replayable"
}
]
}Raw artifact
replay_report.json
{
"schema": {
"kind": "helix.replay_report",
"version": 1
},
"report_id": "replay-synthetic-sample-0001",
"bundle_id": "helix-synthetic-evidence-bundle-v1",
"run_id": "run-synthetic-model-0001",
"generated_at_utc": "2026-05-06T00:00:00Z",
"status": "Replayable",
"verifier": {
"command": "node verify.mjs",
"checks": [
"sha256 hashes match checksums.sha256",
"manifest required keys are present",
"provenance receipt required keys are present",
"evidence required keys are present",
"replay report required keys are present"
]
},
"replay": {
"input_mode": "synthetic fixture",
"network_required": false,
"external_service_required": false
}
}