ForgeCertify

The open standard for CAD geometry kernel certification.

Run 2,223 geometry tests against any B-rep kernel and receive a cryptographically signed result you can publish, audit, and reproduce.

pip install forgecertify
forgecertify run --kernel forgekernel

→ forgecertify.org

What it tests

Total: 2,223 tests · 91 test files · 0 failures on ForgeKernel

Quick start

# Install
pip install forgecertify

# List available kernel adapters
forgecertify kernels

# Run the full suite against ForgeKernel (reference implementation)
forgecertify run --kernel forgekernel --output ./results

# Run against manifold3d (requires: pip install manifold3d)
forgecertify run --kernel manifold3d

# Run against OpenCASCADE (requires: conda install -c conda-forge pythonocc-core)
forgecertify run --kernel ocp

# Run only fast tests
forgecertify run --kernel forgekernel -m "not slow"

# Verify a result file signature
forgecertify verify results/forgecertify-result-forgekernel.json

# Generate a signing keypair for your own results
forgecertify keygen --out-prefix my_kernel

Kernel adapters

ForgeCertify ships with adapters for 8 kernels:

To certify your own kernel, implement KernelAdapter (see forgecertify/adapters/base.py) and pass --kernel your_module.

How certification works

1. Run — forgecertify run invokes all 2,223 tests via your adapter
2. Sign — results are signed with your Ed25519 private key
3. Submit — upload the signed JSON at forgecertify.org/certify
4. Publish — results are verified and added to the public ledger

Nothing is uploaded automatically. You own your results.

License

MIT © 2026 SKYFIRE Systems · forgecertify.org