CSV files don't
pass audits.
Certificates do.
Upload a temperature log. Set your spec. Download a tamper-evident PDF certificate with SHA-256 integrity hashing, threshold analysis, and QR verification. In seconds.
The $35 Billion Documentation Gap
Temperature data exists everywhere. Proof exists almost nowhere.
99.86% of cold chain data never becomes a certificate.
Sensors collect millions of readings. Almost none are validated against a spec and converted into auditor-ready documentation. The data exists, but the proof does not.
Thermal printouts fade in 5 years. The FDA flagged this in 1983.
Paper-based records degrade. CSV files get lost in shared drives. Neither constitutes tamper-evident proof of process compliance when an inspector asks for it.
"If you didn't document it, it never happened."
PCI 3000 auditors, FDA inspectors, and ISO assessors all operate on the same principle. A raw data file is not documentation. A validated certificate with integrity hashing is.
How It Works
Three steps. No software to install. No training required.
Upload CSV
Drop your temperature log from any sensor, logger, or SCADA export. Standard CSV format.
Set Parameters
Define target temperature, hold time, sensor uncertainty, and hysteresis. Or use an industry preset.
Download Certificate
Receive a signed PDF with PASS/FAIL verdict, thermal profile chart, QR verification, and SHA-256 evidence bundle.
Industries Served
Purpose-built validation for six regulated thermal processes.
Powder Coating
Cure profile validation for AAMA 2604/2605, automotive OEM, and aerospace specs.
Cold Chain / Pharma
2-8 C storage verification for EU GDP, WHO PQS, and FDA 21 CFR Part 211.
HACCP / Food Safety
Critical control point documentation for Codex Alimentarius and FSMA compliance.
Autoclave Sterilization
Steam sterilization cycle validation per ISO 17665 and EN 285.
EtO Sterilization
Ethylene oxide cycle documentation for ISO 11135 and medical device compliance.
Concrete Curing
Maturity method documentation for ACI 318, ASTM C1074, and structural specifications.
Standards Alignment
Certificates reference the specifications your auditors expect.
See What Inspectors See
Download actual certificates generated by ProofKit. No signup required.
Autoclave Sterilization Cycle
134 C steam sterilization with 18-minute hold. Demonstrates threshold analysis, ramp rate calculation, and continuous hold verification.
Cold Chain Excursion
2-8 C pharmaceutical storage with temperature excursion detected. Shows how ProofKit documents failures with the same rigor as passes.
Powder Coating Cure Profile
180 C cure validation for architectural aluminum. Includes thermal profile chart, hold time analysis, and QR-verified integrity hash.
Pricing
Start free. Upgrade when your volume requires it.
Start with 3 free certificates -- no credit card required.
Professional
- AI analysis & investigation reports
- No watermark on PDFs
- Custom logo on certificates
- Email support
Business
MOST POPULAR- Everything in Professional
- Batch processing & API access
- Custom branding
- Priority support
Enterprise
- SSO & audit trails
- Dedicated account manager
- SLA guarantees
- Custom templates
Questions
What file format does ProofKit accept?
Standard CSV temperature logs with timestamp and temperature columns. Multi-sensor logs and various timestamp formats are supported. Maximum file size is 10 MB or 200,000 rows.
Is ProofKit compliant with 21 CFR Part 11?
ProofKit generates tamper-evident certificates with SHA-256 integrity hashing and QR-based verification. Certificates align with 21 CFR Part 11 requirements for electronic records. Enterprise plans add retention policies and audit trail capabilities.
How fast is certificate generation?
Most certificates generate in 5-15 seconds. The output includes a signed PDF, a thermal profile chart, and an optional evidence bundle with per-file SHA-256 hashes.
What is included in the evidence bundle?
A ZIP archive containing the original CSV, the decision JSON, the thermal profile chart, and a manifest with per-file SHA-256 hashes and a root hash. The verify endpoint recomputes all hashes and re-runs the decision logic.
Can I try it before purchasing?
Yes. The free tier includes 3 certificates with all industry templates and evidence bundles. Free certificates carry a SAMPLE watermark. Upgrade to Professional or higher to remove it.
Your next audit is coming. Be ready.
Upload your temperature data. Download a certificate that holds up under inspection.
Upload Your Data