File Stamping Tool

How do you prove a file existed at a specific point in time without trusting a central authority?

This tool uses Bitcoin’s ledger and Merkle trees to create verifiable timestamps for files and directory structures. Once stamped, you can prove when a file was created without revealing its contents.

I built this to understand practical applications of blockchain technology beyond cryptocurrency. It’s also genuinely useful for provable attribution and integrity verification.

Tech: Bitcoin ledger, Merkle trees, cryptographic hashing, timestamping