When you hear the term document forgery, the illegal creation or alteration of official papers to deceive authorities, businesses, or individuals. Also known as fake documents, it undermines trust in legal, financial, and personal transactions. Understanding document forgery helps you spot red flags before a forged contract or credential causes damage.
One of the most reliable defenses comes from blockchain, a distributed ledger that records data in immutable blocks. Because every block is linked with a cryptographic hash, any change to a stored file instantly breaks the chain’s integrity. The cryptographic hash, a unique, fixed‑size string generated from document content, acts like a fingerprint: even a single character tweak produces a completely different hash. When a document’s hash on the blockchain matches the hash you compute locally, you have strong proof the file hasn’t been altered.
Another layer of protection is the digital signature, an encrypted code attached to a document that verifies the signer’s identity and the document’s integrity. Combined with public‑key infrastructure, a digital signature lets you confirm who signed the file and whether any post‑signing edits occurred. In practice, firms use these signatures to lock contracts, certificates, and even government forms, making unauthorized changes practically impossible without detection. Together, blockchain timestamps, cryptographic hashes, and digital signatures create a multi‑factor shield that raises the cost of forging documents to prohibitive levels.
Below you’ll find a curated collection of articles that dig deeper into each of these tools—how modular blockchain designs boost scalability, how hash collisions could threaten security, and real‑world examples of airdrops that illustrate token utility. Whether you’re a compliance officer, a developer, or just curious about how crypto tech secures everyday paperwork, these pieces give you actionable insight into stopping document forgery before it spreads.
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