Create a SHA-256 manifest with one command on macOS, Linux or Windows, timestamp it once, and show any single file later. Commands, checks and limits.
13 October 2026For everyoneRead
StampR2026-10-13
Create a SHA-256 manifest with one command on macOS, Linux or Windows, timestamp it once, and show any single file later.
For everyone
Stories and guides
What to do when your work gets used without you.
For everyone
Video certificate: get it before you post
Get a certificate for your YouTube, TikTok or Reels video before posting: which file to certify, what to do if someone reuploads it, and the honest limits.
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Writers
How to Prove You Wrote Your Manuscript Before Sending It
What to timestamp before a manuscript goes to agents, contests or co-writers, why a PDF beats a DOCX, and the one thing no evidence can cover: your premise.
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For everyone
How to show your certificate to a client or label
What to send a client, label, publisher or employer, what they see when they scan the QR code, and how they can check your file is the certified one.
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For everyone
Certificate of authorship: what it is and how to get one
What a certificate of authorship is, every field on the PDF explained, how to get one in minutes, how anyone checks it and what it costs – from €4.90.
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For everyone
Do Timestamp Certificates Hold Up in Court?
What EU law says about qualified timestamps as evidence, what the presumption means in a dispute, what it cannot establish, and how the other side will try to get around it.
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For everyone
Authorship Evidence: Every Option and What It Costs
Every way to evidence a work and date it: StampR, SIAE, e-Soleau, the Spanish registry, a notary, the US Copyright Office and the free options. Costs, limits, and when each is wrong.
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Producers
Do DAW Project Files Prove You Made a Song?
What DAW sessions, stems, exports and timestamped hashes can corroborate, and what they cannot establish on their own.
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Illustrators
How to Prove My Art Is Mine, Not AI
Need to prove a work is human-made, not generated? Here's what evidence actually works — process files, a time trail, and a dated authorship declaration.
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For everyone
Copyright Protection — What You Can Actually Do
Copyright arises automatically, with no registration. What that means in practice, where the weak point is, and how to secure evidence that the work is yours.
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For everyone
Declaration of Authorship — What It Is and When It Counts
What a declaration of authorship is, what it proves and what it doesn't, and why the date is what gives it weight in a dispute.
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Photographers
How to Prove a Photo Is Mine
Need to show a photo is yours? Here's what evidence works, why EXIF isn't enough, and how to secure a trusted date that shows the shot is yours.
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Freelancers
How to Prove a Design Is Mine in a Client Dispute
In a dispute with a client over who owns a design? Here's how to build your proof step by step — with a trusted date showing who created the work and when.
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Producers
Sending a Demo to a Label — How to Protect It First
Sending an unreleased track to a label or collaborator? Here's how to secure a dated trail before you hit send — so you can prove the work is yours.
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Illustrators
AI Copied My Style — How to Prove the Original Is Mine
AI is reproducing your style? What you can realistically do, and how to build a dated trail of your original work that shows what came first.
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Photographers
Someone Stole My Photo — What to Do
Someone is using your photo without permission? Here's what to do right away and how to prove the shot is yours — with a trusted date from before the theft.
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Freelancers
A Client Stole My Design and Didn't Pay — What to Do
A client used your design but never paid and went silent? What to do and how to prove the work is yours, with a trusted date from before.
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Producers
Someone Stole My Beat — How to Prove It's Mine
Someone reposted your beat as their own? Here's what to do in the first 24 hours and how to prove you're the author — with a trusted date from before the theft.
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Legal information
Copyright registration in Bulgaria: what you need to know
Copyright in Bulgaria requires no registration – but proving it in a dispute requires a document. Learn which options are legally valid and which is practical for 2026.
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Guide
What is qualified timestamping – and why it matters for copyright proof
How qualified electronic timestamping works, its legal standing under eIDAS, and why RFC 3161 / ETSI EN 319 422 make it the gold standard for intellectual property evidence.
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Legal information
Proof of authorship in Bulgaria – what the options are
How to prove authorship in Bulgaria – notary, tax registration or a certificate with a verified date. Compared by cost, speed and legal weight.
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Pricing and plans
What it costs to protect your authorship
What does it cost to protect your authorship? Notary vs direct service vs a StampR certificate – €6.80, no subscription, no setup.
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Tips
How to protect your copyright online
How to protect your work online – music, design, photos, text. A certificate of authorship with a verified date, recognized across the EU.
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Security & privacy
StampR certifies works without storing original files
StampR applies a privacy-by-design architecture where only a SHA-256 hash of the work is sent to the server while the original file never leaves the user’s device or is stored in the platform.