SOULPROP

Your work is a part of who you are.

Don't leave it unprotected.

Encrypted cloud storage with cryptographic timestamps from independent authorities. Court-ready evidence when you need it.

Who it's for

Anyone who creates original work and needs a record of when it existed.

Creators

Writers, artists, musicians, and designers. Seal your work before publishing to establish authorship with a cryptographic record.

Researchers

Scientists, academics, and engineers. Prove priority of discovery with timestamped, encrypted records from an independent authority.

Businesses

Companies protecting trade secrets, internal processes, and proprietary methods. Document what you know and when you knew it.

Legal

Attorneys and compliance teams. Preserve evidence chains with documentation that meets court standards out of the box.

Creation has a timeline.
The question is whether anyone can prove it.

How to seal

Any file type. Up to 100 MB.

1

Single file

Drag any file onto the seal page. SoulProp encrypts it, timestamps it through an independent certificate authority, and returns your .soulprop key file. Keep this key safe. It is the only way to reveal your file later.

2

Multiple files or folders

Working with several files? Zip them into a single archive first so you can verify the total size, then drag the zip onto the seal page. You can also drop a folder directly and SoulProp will bundle it automatically. Either way, one sealed file, one key.

How to bundle files →

3

Reveal when you need proof

Upload your .soulprop key file on the reveal tab. You receive your original file along with a court-ready evidence package: a PDF certificate, the timestamp token, and an OpenSSL verification script.

Sealing a file takes seconds.
What it protects took you much longer.

Secure cloud storage you can prove.

Every sealed file is fingerprinted with SHA-256, encrypted with XChaCha20-Poly1305, and timestamped by FreeTSA using the RFC 3161 standard. Encrypted files are stored for seven years. Encryption keys are generated per file, returned to you once, and never retained. SoulProp cannot access what it protects.

What you can seal

Any file type. Documents, code, images, audio, video, archives, databases, binaries.

Manuscripts Seal drafts, chapters, or finished books before sending to publishers or collaborators.
Source code Timestamp algorithms, architectures, or inventions to establish prior art.
Designs Protect visual work, brand assets, and product designs before public release.
Research Seal lab notebooks, datasets, and findings to prove when discoveries were made.
Contracts Preserve the state of agreements, proposals, and legal documents at a specific moment.
Trade secrets Document proprietary processes and methods with encrypted, timestamped proof.

Your work already has value.
This just makes it legible.

Start protecting your work.

Seal a file in under a minute. Free during beta.

Seal a file for free