# HBF external reproduction preregistration template

Complete and timestamp this document **before** running or viewing the expected
outputs. Publish it at an immutable URL where practical.

- Institution:
- Facility or department:
- Named operator:
- Named independent reviewer (must be a different person):
- Date/time UTC:
- Package archive SHA-256:
- Source-tree SHA-256:
- Target model IDs and versions:
- Exact observables being tested:
- Primary agreement metrics:
- Acceptance thresholds and their justification:
- Environment/container identity:
- Planned deviations from `external-validation/run_validation.py`:
- Data/blinding procedure (if experimental):
- Conflict-of-interest disclosure:
- Commitment to publish failures and residuals: yes / no

This preregistration does not itself grant a maturity level. The completed run
and review must also satisfy `platform/science/validation-evidence.schema.json`.