Proof Records for Governance Documents, Carbon Evidence, Sensor Data, and Product Verification

Create SHA-256 hash records, QR verification pages, and proof certificates in minutes.

Hash + QR Proof Certificate Generator

Upload a file, generate a SHA-256 hash, create a QR verification page, and download a proof certificate.

Open Tool

Carbon Evidence Pack Generator

Create a proof-ready evidence index for ESG files, carbon reporting documents, energy bills, sensor logs, and sustainability project records.

Open Tool

IoT Sensor Data Proof Generator

Create a proof-ready report for uploaded sensor CSV files, including SHA-256 hash, timestamp review, range checking, and anomaly summary.

Open Tool

Batch Proof Pack Generator

Create a proof-ready hash index for multiple files, including a batch ID, file list, SHA-256 hashes, and batch index hash.

Open Tool

Product QR Proof Page Generator

Create a product proof PDF and public QR verification page for product records, serial numbers, batches, warranty notes, and supporting evidence.

Open Tool

What this tool does

ProofTools.io stores the hash and metadata of your file, not the file itself. The hash can later be used to verify whether a file matches the original record.