The exact work
The SHA-256 fingerprint identifies the exact file without revealing its contents. If the file changes, its fingerprint changes with it.
First certificate €4.90 with a free account
Before you share it, leave verifiable proof.
StampR issues a verifiable certificate that binds your authorship declaration to the exact digital fingerprint of the work and to a qualified electronic timestamp.
For a song, a text, a photo, a design, code, a project, a research paper or any other digital file.
Your first certificate is €4.90 with an account. Each one after that is €6.80.
Verifiable online
Serial number, QR code and digital fingerprint for verification
Private by default
The original file is not stored unless you explicitly choose otherwise
Qualified time
A qualified electronic timestamp from BORICA B-Trust
European legal framework
The timestamp is recognised as qualified in every EU country
Not sure what to start with?
Pick the first finished work that comes to mind.
It does not have to be your most important work. For your first certificate, pick a file you already have and see how easily StampR works.
- Your latest demo or finished song before you send it to a producer, an artist or a label
- A poem, a short story or a manuscript before you send it to an editor, a competition or a publisher
- A photo, a video, an illustration or a design before you publish it or hand it to a client
- A presentation, a project, a drawing or an analysis before you share it with partners or investors
- Code, a prototype or a technical solution before you push it to the repository or send it to a team
- A paper, a study or a dataset before peer review, a conference or publication
Pick a file and start free
The first certificate costs €4.90 and is issued as soon as you create a free account.
What you get
One certificate. Three verifiable links.
StampR binds the specific work, your declaration and the exact moment of certification into a single verifiable document.
You get
- PDF certificate
- a unique number
- a QR code
- a SHA-256 fingerprint
- timestamp data
- a verification link
The certificate does not create or transfer copyright. It serves as verifiable evidence of the declaration made, the specific digital object and the moment of certification.
Why do it now
A few minutes now.
Orderly proof, if you ever need it.
Certify the work while it is still with you and before you send, publish or hand it over. If a question about authorship or priority arises later, the certificate can support your position alongside working files, correspondence, contracts and other evidence.
How StampR Works
You pick a work. You declare. You get a certificate.
Pick
Point to the file you want to certify: a document, an image, audio, video, an archive, code or any other digital format.
Describe
Add a name, a short description, the author or co-authors, and choose the privacy settings.
Declare
Confirm the authorship declaration and receive a verifiable PDF certificate.
By default StampR does not store the original file. Certification uses its digital fingerprint.
Who it is for
Who the platform is for.
You make something. Leave your name on it.
- Authors and writers
- Artists and illustrators
- Photographers and videographers
- Musicians and composers
- Designers and 3D artists
- Software developers
- Inventors and engineers
- Journalists and reporters
- Researchers and teachers
- Architects and designers
How people use it
In the words of people who
have already certified their work.
Each of them had something finished and the same question: how do I prove it is mine. Here is what they answered when we asked.
Andrea Teruel Diez
Creative profession
I have been using StampR for my most recent publications because it is affordable, easy to use, and provides evidence of my authorship.
Certified
Books
5 certificates
Anonymous review
Marketing / Communications
I recommend it. Fast and easy. I lived in Mexico for 18 years. I have three poetry collections and two music albums registered there. The whole process there was far more convoluted.
Certified
Two songs and two lyrics
3 certificates
Anonymous review
Legal / Finance
That it is a very helpful option to protect their work through eIDAS.
Certified
A university badge
2 certificates
Anonymous review
IT / Technology
To use it without hesitation.
Certified
Source code
1 certificate
Reviews from a survey of certificate holders, published with their consent.
Legal framework
Copyright arises automatically. Online copyright protection begins with the evidence.
Copyright arises when the work is created and does not depend on registration with StampR. The certificate formalises your authorship declaration and binds it to the exact digital fingerprint of the work and to a certified moment in time.
The qualified electronic timestamp used enjoys, under Regulation (EU) No 910/2014 (eIDAS), a presumption of the accuracy of the date and time it indicates and of the integrity of the data it is bound to. The certificate may be submitted as evidence and is normally considered together with other documents and facts.
StampR does not create, transfer or guarantee copyright, and does not prevent infringement.
Timestamping partner
FAQ
Frequently Asked Questions
How will the certificate prove that I am the author?
In short: the certificate fixes three things at once – what the work is (through the hash), when you declared it, and that the declaration came from you. In an authorship dispute, it is precisely that combination that is the evidence.
Copyright (including authorship) arises automatically when the work is created and generally does not require registration, but in the event of a dispute the author often needs to prove authorship and/or priority (when the work was created or first placed on record). The certificate is issued based on the applicant’s declaration of authorship–upon issuance, you declare that you are the author of the work, and this declaration is fixed with an exact date and time. The platform enables this declarative recordation of authorship to be formalized through a certificate that is one-way and inseparably linked to the digital fingerprint (hash) of the work and to the exact time of issuance (date and time). In this way the certificate supports proof along three main lines: “what” (the identity of the specific work via the digital fingerprint), “when” (the moment the declaration was made), and “who” (the link to the declaring person, according to the chosen identification and publicity settings). This combination is essential in priority disputes, as it allows it to be established later that this exact work was declared as yours on a specific date. The certificate is subject to validation–you or a third party can verify the certificate and confirm that it corresponds to the specific work and was issued at the stated time.
What is timestamping and how does it work in StampR?
Timestamping attaches a qualified electronic time stamp (QeTS) to the “digital fingerprint” (SHA-256 hash) of your file. This locks in the exact date and time when the content existed and guarantees it has not been altered afterwards. In StampR the process is automatic: the system calculates the hash server-side, sends a request to a trusted eIDAS-qualified provider (BORICA B-Trust), receives a Time-Stamp Token (TST), and issues a certificate with a unique serial number plus public verification instructions (QR/URL).
Why should I place my work on record?
When a dispute arises (copying, theft, conflict over who was first), simply keeping the work to yourself is not enough. You need to be able to show that it existed on a specific date and that you declared authorship for it. Recordation in StampR is exactly that: you make a declaration of authorship, it is fixed in time, and it is certified so it can later be easily verified that your claim was made at a specific moment. You can choose between public and confidential recordation. With public recordation, third parties can verify the certificate and see that valid certification exists and when it was made, which has a preventive effect and is convenient when presenting to partners, clients, or an audience. With confidential recordation, you keep the same evidence and verification capability, but without making information publicly available beyond your selected settings, and the work content does not become visible. It is important to know that copyright arises automatically upon creation of the work. The certificate does not create rights; it supports proving authorship and the moment of declaration when that matters.
Which works can I certify with a timestamp?
Almost any digital file: text documents (DOCX, PDF), images (PNG, JPG), audio/video (WAV, MP3, MP4), software code and archives (ZIP, TAR.GZ), designs, drawings, research data, and more. Even physical materials can be digitised (scan/photo) and then certified. StampR users cover a wide range: literary, musical, scientific and IT works, graphic and industrial design, photography, technical drawings. Note: The service does not replace patent or trademark registration. The certificate acts as supporting evidence (time + immutability) and is typically combined with other facts, documents, or testimonies in a dispute.
What is a SHA-256 hash and why does it matter?
SHA-256 is a cryptographic algorithm that produces a unique “fingerprint” of a file. Even the smallest change to the original yields a completely different hash. This lets you prove that the certified content matches the original without sharing the file itself. StampR follows a privacy-by-design approach: only the hash and declaration metadata are stored, never the content.
Does the timestamp have legal force and where is it recognised?
Yes. A qualified electronic time stamp (QeTS) is defined by Regulation (EU) No 910/2014 (eIDAS) and recognised across all member states. It carries a presumption of accuracy for the recorded date/time and for the integrity of the linked data. In practice you can present the certificate as evidence before courts, institutions, or third parties in the EU. Remember that the certificate proves the declaration and immutability; it is usually combined with other evidence (contracts, correspondence, repositories) for full protection.
Is the file content stored and what is visible publicly?
By default StampR does not store the original files, only the SHA-256 hash, timestamp, and the minimal metadata required for verification. Your confidentiality is protected. If you choose, you can switch to a more public mode – for example, share the original file or display more details on the certificate – but only through an explicit opt-in. The certificate lists the serial number, hash algorithm and value, time marker, QeTS provider, and the verification channel (QR/URL).
How can I verify the timestamp (certificate) of a work?
In the “Verify an object” section you can:
- enter the certificate serial number;
- enter the SHA-256 hash directly;
- upload the original file – the system will compute the hash and compare it with the certified one.
You will get confirmation of the timestamp’s validity (time/provider), of the hash match and of the visible elements of the certificate. If needed, you can also verify the TST (Time-Stamp Token) independently with external tools, since it is a standard one (RFC 3161 / ETSI EN 319 421/422).
Got a finished file? Start with that one.
Don’t hunt for the perfect work for your first try. Create a free account, pick something you have finished and issue your first certificate for €4.90.
Free account · No subscription
Further certificates for registered users are €6.80 each – or less with a prepaid pack.
