Blockchain Timestamping API

Prove the originality and time of existence of any digital asset.

Protect your digital assets

Fully automated and highly scalable

If you want to protect important documents, files, or other digital assets, our Timestamp API might be the right tool for you. With a tamper-proof timestamp, you can prove that a document existed at a certain time and wasn't manipulated since.

Circle check Protects any digital asset
Circle check Ultra-high scalability
Circle check Super easy process integration
Timestamped Documents

How it works

Hash function

Step 1

Hash Your Data

To create a tamper-proof timestamp for your digital asset must first be hashed. A hash is a concatenation of letters and numbers that uniquely identifies your asset - similar to a human fingerprint.

Hash in blockchain

Step 2

Blockchain Anchoring

Then your hash is uploaded to the blockchain, where it can not be changed or deleted afterward. The time when the block containing your assets hash is added to the blockchain is your tamper-proof timestamp.

verified timestamp

Step 3

Verify a Timestamp

By comparing your asset's hash with the hash on the public blockchain, you can verify your timestamp at any time. If the hash checks out, you can prove that your document existed at the corresponding time and has not been manipulated since. You can reproduce all steps on our timestamp dashboard or use our timestamp API in your application.

Open Timestamping Dashboard

A USP for your business

Stand out with trusted data

Does your customer upload photos, documents, intellectual property, or any other data to your product or service that is worth protecting? Stand out by protecting this data. For you and your customer. White-labeled timestamp certificates are available.

Circle check Integrates with your product
Circle check Builds trust with customers
Circle check White-labelling options available
Certified Documents

Timestamp API Pricing

Get in touch for a custom offer.

Starting at


1'000'000+ timestamps per month
Certificate white-labelling
Verification page white-labelling
Unlimited history
Priority support
Consulting for $179/hour
Service level agreement
Phone support
Contact Sales
Up to 1'000 timestamps/month
6 months free
30 min onboarding

Possibility to upgrade to a plan with 10'000 timestamps/month for another six months at $39/mo

Contact Sales

What customers are saying

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We'd love to talk about how we can work together.

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