How do I prove I created something first?
You prove first creation with dated, independently verifiable evidence made at or near the time you finished the work, such as a copyright registration, a timestamped file with metadata, or a public, tamper-evident record like a Deed. A private file on your own laptop with an editable date is weak evidence on its own, because you could have changed it. What matters is a record that a third party, not you, can independently confirm was made on a specific date.
Why self-dated evidence is weak on its own
Anyone can change a file's creation date, backdate an email, or claim a private drawer full of drafts predates a rival's release. This is why disputes over who created something first usually turn not on who is telling the truth, but on who has evidence a court or platform can independently trust. The strength of your claim depends entirely on how hard your evidence is to fake or dispute.
The gold standard: registration
In the US, registering with the Copyright Office creates an official public record with a clear effective date and, importantly, is a prerequisite to filing an infringement lawsuit and to claiming statutory damages and attorney's fees for US works. In the EU, there is generally no formal registration system for copyright, since protection arises automatically on creation, so proving a date relies more heavily on other independent evidence.
Independently verifiable timestamps
Where formal registration is unavailable, slow, or not appropriate for the type of work, an independently verifiable, tamper-evident timestamp is the next best thing. This is precisely what a Deed provides: a publicly checkable, dated record that you registered a specific work at a specific time, which a third party can confirm without needing to trust your word or your files alone.
Other supporting evidence includes dated emails to collaborators, drafts sent to a third party such as a publisher or client, and metadata from professional software, though these carry less independent weight than a formal registration or public record.
What to do the moment a dispute arises
Gather every piece of dated evidence you have, in chronological order, and avoid editing or resaving the original files, since that can alter metadata you may need later. If the dispute is serious, formal registration or legal advice becomes necessary quickly, since delays can weaken your position further.
WHAT TO DO
- 01Stop editing the original files so their metadata is preserved.
- 02Gather every dated piece of supporting evidence, including emails and shared drafts.
- 03Register formally with the Copyright Office if you are in the US and the work is significant.
- 04Mint the work into DEED to create an independently verifiable, dated public record.
KEY FACTS
- 01Self-dated files on your own devices are weak evidence because dates can be altered.
- 02US copyright registration is required before filing an infringement suit and to claim statutory damages.
- 03The EU has no general copyright registration system; protection is automatic on creation.
- 04Independently verifiable, tamper-evident timestamps strengthen a first-creation claim without formal registration.
ALSO ASKED
+Is mailing myself a copy still useful evidence?
It is weaker than formal registration or an independent timestamp, since postal dates can be questioned and envelopes can be resealed.
+Does social media posting count as proof of creation date?
It can help, since platforms log timestamps, but platform records are not always accepted as definitive by courts.
+Can I register a work after a dispute has already started?
Yes, but earlier registration is always stronger, since it predates the dispute and cannot look self-serving.
+What if two people created something very similar independently?
This does happen, and courts look at access and similarity as well as dates, so keep evidence of your independent process too.
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DEED (2026). How do I prove I created something first?. DEED rights register. https://deed.rizzgroup.org/answers/how-do-i-prove-i-created-something-first