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.

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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.