Which version was final?
DP
DocProof
Proof infrastructure for business documents
Create verifiable proof for important documents.
DocProof helps businesses prove a document existed in a specific form at a specific time without storing or exposing the document contents.
Private by design
Verify anytime
Shareable proof
Document verified
Project Proposal.pdf
OK
Registered
May 12, 2026
Fingerprint
a94f3c...e1b2d9
Status
Unchanged
Private
Timestamped
Verifiable
Document disputes start when proof is missing.
Most teams do not need another place to store files. They need a way to prove what existed, when it existed, and whether it changed.
When was it delivered?
Was it changed later?
Can we prove it without exposing the file?
How it works
Select a document, generate proof, receive a timestamped receipt, and verify the same file later if a question comes up.
01
Select a document
Choose the file you want to prove existed at this moment.
02
Generate its fingerprint
Create a proof record without publishing the file itself.
03
Receive a receipt
Receive a simple receipt you can keep, share, or attach to a workflow.
04
Verify later
Use the receipt later to confirm the document matches the original proof.
Before DocProof, proof is scattered.
Most teams rely on emails, filenames, screenshots, and memory when a document is questioned.
Before DocProof
Evidence lives in inboxes
Teams search through emails, attachments, and chat messages to reconstruct what happened.
Versions are easy to dispute
File names like final_v3.pdf do not prove which document was actually approved or delivered.
Sensitive files get forwarded
Proving a point often means exposing the full document to people who only need verification.
Audits take longer
Finding reliable evidence becomes manual, slow, and hard to repeat.
After DocProof
Each file gets a fingerprint
A unique proof is tied to the exact document, without exposing its contents.
Receipts are easy to share
Send a timestamped proof record instead of explaining the document history manually.
Verification is independent
Another person can check whether a file matches the original proof.
Evidence is audit-ready
Keep a cleaner trail for disputes, reviews, and compliance workflows.
Want to test this workflow with your documents?
Try the demoUse cases where proof matters before a document is questioned.
DocProof is useful when a team needs evidence around document timing, version, delivery, or integrity without exposing the document itself.
Client deliverables
DeliveryA consulting team sends a final strategy deck and later needs to prove which PDF was delivered.
Contracts and proposals
SalesA sales team registers a signed proposal before pricing or scope is challenged.
Technical reports
ReviewAn engineering firm keeps proof of the report version shared for approval.
Internal policies
OperationsHR records which remote-work policy was active before a workplace dispute.
Compliance evidence
ComplianceA compliance team proves that an audit evidence file was unchanged after submission.
Creative or software work
IPA studio records proof for a design package or source archive before sharing it.
Register proof. Verify the same file later.
Upload any file to create a local fingerprint. DocProof stores the hash with a timestamp, then checks future uploads for an exact match.
Create proof
Store a SHA-256 fingerprint and timestamp for a file.
Verify file
Upload a file again and check whether its fingerprint exists.
Clear expectations for the first version.
Do you store my documents?+
The MVP is designed around storing fingerprints and metadata, not document contents.
Is this legally equivalent to notarization?+
Not by itself. DocProof focuses on verifiable proof of existence and integrity. Legal value depends on the context and jurisdiction.
Is this blockchain-based?+
Not for the first version. The priority is a simple proof workflow teams can use immediately. Public anchoring on blockchain may be added later if customers need it
Can someone verify a document without an account?+
Public verification is planned as a core feature.
Who is this for?+
Teams handling contracts, proposals, deliverables, reports, policies, or compliance evidence.
Feedback and feature requests
Tell us what DocProof should support first.
We’re not selling yet. We’re collecting feedback, feature requests, and real workflow problems from people who deal with important documents.