Input-driven live proof

Watch every service boundary.

This page reads the live public health and signing-key endpoints, hashes those responses in your browser, submits your exact text to the dedicated non-production evaluator, retrieves the resulting receipt, and asks the service to verify its signature.

Scope: this is a scripted, read-only tool workflow plus deterministic policy evaluation. Your text is synthetic demo input. No LLM or autonomous agent runs, and no production action or production-chain write occurs.

Claim to evaluate

Ready. The run normally takes one to three seconds over the public network.

Receipt summary

Historical production audit status is separate from this new receipt. Inspect the current redacted audit summary.

Offline worked example

Verify a real production receipt without a Summit account.

The 25 KB verification kit contains production receipt rcpt_gh-Summit-Cognitive-summit-pr-37782-12a09d1_msv0kqa2_b3177f0ff3c34d4a, chain sequence 3723, issued 15 August 2026. The included verifier has no dependencies and makes no network calls.

curl -fsS https://decrec.summitcognitive.ai/downloads/summit-verify-kit.zip -o summit-verify-kit.zip
unzip -q summit-verify-kit.zip
cd summit-verify
curl -fsS https://decrec.summitcognitive.ai/v1/keys/server -o pinned-key.pem
python3 summit-verify.py sample-receipt.json --key pinned-key.pem

Expected result: VERDICT: PASS, exit code 0. The key fingerprint is sha256:9bd4ac8f0c0eef8a96be6fcc47a0fc0d0f5f176170a29aa7206b06daa32285cc.

Fetching the public key makes the check reproducible; deciding to trust that key is a separate step. Pin the fingerprint through a trust channel you control. PASS authenticates the committed receipt and recorded chain position. It does not prove the described event occurred, that a downstream action executed, or that the decision was legally sufficient.