Verifiable registration date
Show when a document’s digital proof was recorded.
Blockchain notarization
Blockchain notarization for authentic, verifiable documents
Record immutable proof of the existence and integrity of documents and digital content. Show when a version was notarized and check over time that it has not been altered.
Document integrity
Detect any change from the notarized version.
Independent verification
Enable transparent checks without relying on the system that created the file.
Alpine landscape
image/jpeg • 8.4 MB
Hash generated Notarized on the blockchain
- Recorded hash8f42a66e7c1b…9bc19a
- Timestamp22 May 2026, 14:32:08 UTC
- VerifiedContent integrity confirmed
- Proof anchored to the blockchainDecentralized, immutable network
Immutable and persistentThe proof cannot be altered or removed.
Proof of existence
Attests that a specific version existed at the time of registration.
Immutability
The proof persists and cannot be changed retroactively.
Public verification
Integrity can be checked transparently and independently.
How it works
From document to digital proof in three steps
A clear process to protect the original version, generate a unique reference and make verification accessible.
Upload the document
The file is securely ingested. The original content is not published on the blockchain.
Generate the digital fingerprint
SCE calculates a unique hash that identifies that exact version of the document.
Record and verify the proof
The hash, timestamp and transaction reference make the proof persistent and verifiable.
Privacy and control
The blockchain stores the proof, not the document
The original file is not made public. Verification uses only the technical references needed to compare the checked version with the notarized one.
- Content hash — uniquely identifies the recorded version.
- Timestamp — documents the time of registration.
- Transaction ID — links the proof to the blockchain network.
- Verification result — indicates whether the file matches the proof.
Document authenticity
Notarize content that needs lasting evidence
Digital proof is useful when a document circulates outside your systems, gets updated or may be disputed.
Public records and documents
Notices, resolutions, communications and institutional documents that remain verifiable after distribution.
Business documents
Contracts, policies, reports, certifications and files with operational or reputational value.
Legal and compliance
Versions, evidence and attachments that need a traceable date and documented integrity status.
Digital content
Publications, announcements and assets distributed through websites, portals, archives and external channels.
APIs and CDN badge
From API signing to a verifiable badge on your website
Integrate notarization into your existing workflow: send content to the SCE APIs, receive the proof identifier and load the official CDN component to display the interactive badge.
Sign and notarize through APIs
A single call links the file to the proof and returns its proof_id.
POST /v1/proofs
Authorization: Bearer ••••••••
Content-Type: application/json
{
"content_url": "https://example.com/documento.pdf"
}Display the badge from the official CDN
Insert the script and the proof_id. Colors, position and theme can be adapted to the publishing context.
<script
src="https://cdn.securecontentengine.com/badge.js"
data-proof-id="proof_8f42a6"
data-theme="light"
data-accent="#0873ef">
</script>Interactive preview
The badge makes the proof understandable to everyone
Hover over or select the badge: the panel shows the network, hash, timestamp and integrity result without taking visitors away from the page.
Use the notarization plugins for WordPress and Salesforce.
Explore API integrationFrequently asked questions
Blockchain notarization FAQ
Clear answers on authenticity, integrity, privacy and digital document verification.
What is blockchain notarization of a document?
It records digital proof linked to a specific version of a document on a blockchain. The proof lets you verify the file’s existence, registration date and integrity over time.
Is the original document stored on the blockchain?
No. The blockchain records the file’s cryptographic fingerprint, together with the references needed for verification. The original content remains in authorized systems.
How do you check whether a document is authentic and unchanged?
The system recalculates the document’s hash and compares it with the recorded proof. If the values match, the checked version matches the notarized version.
Can blockchain notarization be used as evidence?
The record can provide technical evidence to help document existence, date and integrity. Its value in any particular case depends on the context, procedures followed and applicable law.
Which files can be notarized?
PDF documents, contracts, reports, images, archives and other digital content can be linked to a proof, provided the ingestion and retention workflow is configured correctly.
How do you integrate the SCE badge into a website or application?
Content is sent to the SCE APIs to generate the proof. The returned proof_id is then linked to the badge loaded from the SCE CDN, with a theme, color and position that can be adapted to the project.
Make your documents verifiable
Discover how to add blockchain notarization to your workflow
Tell us which documents or content you need to protect: we will show you an approach suited to your organization.