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When Neither Side Should Control the Record
Most digital records do not need anything special. An email confirmation is usually enough. So is a shared folder, a company database, or a PDF saved by both sides. The interesting cases start when something goes wrong. Consider a moving company handling valuable household items. Before packing, the crew photographs their condition and prepares a…
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Which ProofStamp Should You Use?
ProofStamp can preserve the fingerprint of a file in several different ways. The basic idea stays the same: Your file → SHA-256 fingerprint → evidence Your original file stays with you. What changes is where the evidence is recorded, how time is established, and how someone can check it later. Today you can choose between…
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What Is a Hash Function? SHA-256 Explained.
Learn what a hash function is and how SHA-256 turns any file, message, photo, or video into a fixed-length digital fingerprint. This guide explains how hashes verify data integrity, why SHA-256 is widely used, where hashes appear in everyday tech, and what a matching hash can and cannot prove.