RedPluma: File Timestamping and Anchoring Using Bitcoin Technology

A secure and verifiable system that generates a digital fingerprint (SHA-256) of your file and anchors it to Bitcoin via OpenTimestamps, allowing you to prove integrity, existence, and date without exposing the file’s content.

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Digital Seal Verification (Automatic)

Upload the .ots file and choose one option: paste the SHA-256 hash or upload the original file. The system performs an automatic upgrade and returns the verification result (including anchor date and time if already available).



RedPluma protects the immutability of digital documents and files by creating a verifiable record on the blockchain.
This ensures integrity, traceability, and proof of existence in the digital world.

Main Features

Guaranteed Integrity

RedPluma generates the file’s hash (SHA-256) and records it immutably. Any change, no matter how small, produces a different hash and is instantly detected

Verifiable Timestamp and Traceability

The timestamp is anchored in time through OpenTimestamps and Bitcoin, making it possible to prove that the file already existed at the moment of anchoring, without relying on a single server.

Simple for Users

Upload your file, receive your .ots file, and store it together with the document. Later, anyone can verify in seconds whether the file is unchanged and whether the timestamp is valid

How do we do it?

In this diagram, you can see how RedPluma turns a technical proof (hash + blockchain) into a simple process: stamp, store the .ots file, and verify whenever you need.

 

  1. We calculate the file’s SHA-256 hash

  2. We anchor it using OpenTimestamps (Bitcoin)

  3. We provide a .ots proof for independent verification

Frequently Asked Questions

How secure are my images once they are certified by RedPluma?

No. RedPluma provides proof of integrity and existence at a given point in time.
It can complement digital signatures, expert reports, and internal protocols, and is especially useful when you need to demonstrate that a file has not been modified since it was stamped.

Does RedPluma replace a notary public or a digital signature?

Redpluma is an essential tool that will drastically reduce all types of fraud related to image verification. RedPluma is responsible for storing important data such as the time and place where the image was taken, giving more information that allows fraud detection.

What types of files can I stamp with RedPluma?

Any digital file: PDFs, images, audio, video, Office documents, ZIP files, exported messages, and more.
The system works on the file’s digital fingerprint (hash), not on the file format.

What guarantee does RedPluma provide regarding the timestamp?

The relevant date is the anchoring date. RedPluma allows you to verify that the hash was anchored in a Bitcoin transaction within a verifiable time window.
This provides a solid reference for proving prior existence.

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