Be safe
Make sure no one manipulated your files
and that they are tamperproof.

Be certain
Know there were no changes after
the timestamped digital seal.

What is CB Blockchain Seal for SharePoint?

CB Blockchain Seal for SharePoint is the ready-to-use solution for Microsoft SharePoint that allows you to digitally seal the documents you store in SharePoint using Blockchain technology.

This works with virtually any kind of document or file. You can apply digital seals to:

Office documents (Word, Excel, PowerPoint)
PDFs and other Documents
Invoices and receipts
Contracts and paychecks

Machine or sensor data
Software code
Digital processes

Academic documents, like PhD or Master Thesis
Pictures (.jpg, .png, .tiff, .psd and others)
Music & video (.mp3, .mp4, .ogg, .wmv, .mov)
CAD/CAM files or other professional plans

For all these types of files, you can prove no one tampered with the document from a certain moment onwards and ensure its data integrity. The fact that the digital seal is timestamped is essential, for example, to protect intellectual property.

This works both for SharePoint Online, Office 365, or if you're still using SharePoint Server on-premises (2010, 2013, 2016, 2019).

What can I do with CB Blockchain Seal for SharePoint?


Prevent data tampering and fraud


Ensure full data auditability


Accelerate your business data compliance

Digitally sealing files has many applications and use cases

How does it work?

Simple for the end-user

Have all SharePoint documents automatically sealed or, alternatively, digitally seal each SharePoint document with a click of a button. That is all you will have to do as an end-user.

Aim connecting software

Complex yet super-efficient behind the scenes

A lot happens behind the scenes to make it that simple for you. CB Digital Seal for SharePoint creates a hash - a digital fingerprint that is unique to the file and then sends it to CB Digital Port of Trust.

Complex yat super-efficient behind the scenes

This unique hash is a seal that is created for the document. It proves that the document had a specific look and content at the moment of sealing.

CB Digital Port of Trust then creates a Super Hash from the hashes of multiple documents. Finally, this Super Hash is sent to one or more blockchains. All this is happening in a super-efficient way - you can write up to 1 million transactions per second.


When you want to prove the document’s authenticity, the hash is recreated so it can be verified in the blockchain. This can be done any time in the future, there is no limitation for older documents.

The original document data is never stored in the blockchain, only the document's hash. Using a distributed ledger makes the solution decentralized and provides the highest possible security, efficiency, and compliance.

Why is CB Blockchain Seal for SharePoint the ideal sealing solution?


Seamless Integration with Microsoft SharePoint

Having it right inside SharePoint makes it effortless for the end-user


Out-of-the-box & Easy to Deploy

We leverage the power of Blockchain for you with no hassle from your side

fingerprint connection software authentification

Stay in your Environment

No sensitive data transferred to the blockchain – only digital fingerprints



Out-of-the-box compliance with GDPR, CCPA, HIPAA, SOX, New York's SHIELD act


Speed & Scalability

Write up to 1 million transactions per second, even on public blockchains


Environmentally sound

A thousand times more ecological than other blockchain solutions


Available Now

For self-hosted deployment: run it on‑premises or on your cloud servers or virtual machines


For a fraction of cost Exceptional ROI

Including a lower transaction cost – less than 1 cent per transaction

CB Blockchain Seal for SharePoint

Utilize complex JOINs in SQL queries and full support for data aggregation

CB Blockchain Seal for SharePoint

Easily adjust the integration to your needs: One platform, 100+ connections, 100% control

Do you think this might fit your needs? Would you like to explore how it could work out,
how much it would cost and how fast you can have it working?

Related Solutions