In an age of AI fakes, create proof that's unfakeable.

docuProof turns any file into a permanent, blockchain-anchored certificate that proves it existed, unchanged, at a specific moment in time.

Paper burns. Servers crash. Screenshots can be faked. The blockchain never forgets.

Generate Proof →See How It Works

Not sure you need this? See 9 real scenarios →

Your Certificate

✓

docuProof Certificate

Anchored to an immutable blockchain. Cryptographic proof that can't be disputed, altered, or faked. Independently verifiable forever.

✓ Court-ready PDF ✓ QR verification ✓ Blockchain anchor

docuProof

Proof you can point to.

Certificate of

PROOF OF EXISTENCE

Blockchain-Anchored Timestamp

Document Details

Proof ID:a1b2c3d4e5f6

Document:contract_v2.pdf

Timestamp:Jan 26, 2026

Block:#932,061

SCAN TO VERIFY

docuproof.io/v/a1b2c3d4

The world runs on trust. But trust is fragile.

AI can generate fake documents in seconds. Screenshots can be manipulated. Emails can be spoofed. Cloud providers go offline. When disputes arise, "I had it first" means nothing without proof.

docuProof gives you cryptographic evidence anchored to the most secure, decentralized ledger ever created—the blockchain. Not stored on our servers. Not dependent on us existing. Just math and the blockchain.

60s

To generate proof

Forever

Proof lasts

🤖

AI-Generated Fakes

Documents, images, and contracts fabricated in seconds

💨

Platforms Disappear

Startups fail. Services shut down. Data vanishes.

⚡

Disputed Ownership

"I created it first" means nothing without proof

🔥

Lost Evidence

Paper burns. Drives fail. Backups get corrupted.

How docuProof Works

Four simple steps. Under 60 seconds. Permanent proof.

Select Your File

Choose any file. It never leaves your device—we only see its digital fingerprint.

Create Fingerprint

Your browser generates a unique SHA-256 hash—like DNA for your document.

Anchor to Blockchain

The fingerprint is permanently recorded on the blockchain's immutable ledger.

Get Your Certificate

Receive a verifiable PDF certificate with your proof ID and verification link.

Who Uses docuProof

✍️

Freelancers & Contractors

Timestamp contracts and deliverables before sending to clients. Prove what you delivered and when.

🎨

Creatives & Artists

Protect manuscripts, scripts, songs, artwork, and designs before pitching or publishing.

🔬

Researchers & Academics

Establish priority for discoveries, datasets, and thesis work with immutable timestamps.

⚖️

Legal & Business

Create tamper-proof records for contracts, NDAs, compliance documents, and evidence.

Simple, Transparent Pricing

No hidden fees. No subscriptions required. Pay per proof or save with a plan.

Single Proof

Perfect for occasional use

$2.89 per proof

One document, one proof
blockchain anchor
Instant PDF certificate
Permanent verification link
Email confirmation

Generate Proof

Starter Plan

Up to 30 proofs / month

$7.50 / mo

or $76 / year (save 15%)

30 proofs per month
All single proof features
Priority support

Start Monthly Start Annual

Pro Plan

Up to 150 proofs / month

$19 / mo

or $193 / year (save 15%)

150 proofs per month
All starter features
Dedicated support

Go Pro Monthly Go Pro Annual

Frequently Asked Questions

Why would an everyday person need this?⌄

You'd be surprised how often "prove it" comes up in everyday life. Landlords disputing move-in photos. Contractors blaming you for damage they caused. Insurance companies claiming your policy "changed." Family members fighting over a will. A $2.89 timestamp today can save you thousands in disputes tomorrow. See 9 real scenarios where proof saves the day →

Is this a legal notary service?⌄

No. docuProof creates cryptographic proof-of-existence, not legal notarization. It provides mathematical evidence that your file existed at a specific time and hasn't changed since—evidence that can support legal claims but doesn't replace formal notarization where required.

Does my file get uploaded anywhere?⌄

No. Your file never leaves your device. We hash it locally in your browser and only submit the 64-character SHA-256 fingerprint. Your document's contents remain completely private—we never see them.

What exactly gets stored on the blockchain?⌄

Only your file's cryptographic fingerprint (a 64-character hash). This hash cannot be reversed to reconstruct your file—it's a one-way mathematical function. Think of it as a unique digital seal that proves the file existed.

How long does blockchain anchoring take?⌄

Your certificate is issued instantly. Blockchain anchoring typically completes within 1-4 hours as transactions are batched for efficiency. You'll receive an email notification when anchoring is confirmed, and your certificate includes a live status link.

What should I save after generating a proof?⌄

Keep two things: (1) Your original file, unchanged, and (2) The PDF certificate you receive. Together, these allow anyone to independently verify your proof at any time—even if docuProof disappears.

Can I verify my proof without docuProof?⌄

Yes. Your certificate contains everything needed for independent verification using the OpenTimestamps protocol. docuProof is not a single point of failure—the proof exists on the blockchain regardless of our service.

Why the Bitcoin blockchain instead of others?⌄

The Bitcoin blockchain is the most secure, decentralized, and time-tested blockchain in existence. It's been running continuously since 2009 and has the highest hashrate of any blockchain, making it virtually impossible to tamper with historical records.

What happens if I lose my original file?⌄

Without your original file, you can't prove your claim—the timestamp only proves some file existed. After checkout, we offer RIP (Redundant Identity Preservation) to verify your backup copies match your original, protecting you if one copy is lost.

What can accidentally change my file?⌄

Opening and re-saving, re-exporting, or software updating metadata—even without visible changes. Renaming is safe (it doesn't change contents). Best practice: make backup copies right after timestamping and don't open them.

How reliable is the file verification?⌄

We use SHA-256—the same algorithm securing the blockchain and banking systems. Matching hashes means files are mathematically identical, bit for bit. It's not an estimate; it's cryptographic certainty.

Is docuProof only for businesses?⌄

Not at all. Homeowners and families use docuProof just as much—rental move-in photos, contractor quotes, home inventory for insurance, car condition before lending, even custody agreements. A $2.89 timestamp can save thousands in disputes. See 10 things smart individuals timestamp →

What documents should I timestamp?⌄

Anything where proving "when it existed" might matter later. For businesses: contracts, approvals, quotes, NDAs, creative work. For individuals: rental photos, contractor agreements, valuables documentation, receipts. Business use cases → · Personal use cases →

✨ Your First Proof is Free

Try It Right Now

No account needed. Pick any option and see blockchain-verified proof in 60 seconds.

📍

Timestamp This Moment

"I was here."

Take a photo of where you are right now. This is the moment you discovered docuProof — anchored forever to the blockchain.

Take Photo →

📱 Best on mobile — opens your camera directly

🤳

Timestamp Yourself

"This version of me existed."

Take a selfie. Not for social media — for the blockchain. Permanent proof that you existed at this exact moment.

Take Selfie →

📱 Best on mobile — opens front camera

📰

Timestamp Today

"Proof of this day in history."

Download our daily headlines PDF — a time capsule of today. Timestamp it for blockchain-verified proof of this date.

Download Today's Headline PDF then Upload & Timestamp →

📱

Screenshot Anything

"My proof. My moment."

Screenshot whatever matters — a news headline, a product price, a social post, a conversation. Your personal time capsule.

Upload & Timestamp →