What types of files can I include in my archive?

Any type of file: source code, images, documents, configs, databases. The entire ZIP is hashed and certified, regardless of its contents.

Does the deposit protect the archive contents or just the file?

The SHA-512 hash certifies the archive as a whole. Any modification, even a single byte, would produce a different hash. This is irrefutable proof that these files existed at that date.

Can I register private or proprietary source code?

Yes. Your files are encrypted with AES-256 on our servers. Only the cryptographic hash is used for verification. The content remains strictly confidential.

What is the maximum archive size accepted?

ZIP archives up to 35 MB are accepted. For larger projects, split them into multiple archives or exclude dependencies (node_modules, vendor).

ZIP archive protection

Register your .ZIP archives under copyright

Developers, designers, freelancers: protect your complete projects, source code, assets and deliverables in a single certified ZIP archive.

Protect my archive

FREE

How does it work?

Step 1

Upload your .ZIP archive (up to 35 MB)

Step 2

SHA-512 hash of the full archive and AES-256 encryption

Step 3

Download your PDF certificate with QR code

What can you deposit?

Source code Complete projects Mockups Graphic assets Client deliverables Databases Configurations Backups Templates Prototypes

Why Copyright01?

100% Free

Unlimited deposits, full PDF certificates, AES-256 encryption and public verification at no cost.

Instant

Full certification in under 3 minutes. Automatic SHA-512 hash and RFC 3161 timestamping.

181 countries

Proof of prior existence compliant with the Berne Convention, recognised in 181 countries.

Frequently asked questions

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181 countries