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Features

Blockchain-based data certification at your fingertips

Proof of ownership

Secure attribution that can be independently verified

Proof of existence

Ensure and certify that a dataset existed at a certain point in time

Proof of integrity

Monitor in real time the integrity of your data

Proof of receipt

Certify that a specific recipient received your communication in time

Proof of ownership

Irrefutable attribution

Stampery uses blockchain technology to certify who created, accessed or modified a document or dataset. The same technology is used to establish who sent, received or read an email, and also who agreed to its content.

Proof of existence

Mathematically provable

Thanks to blockchain technology you can ensure and certify that a document, email communication or dataset existed at a certain point in time. Timestamping is critical for contracts, research data, medical records and computer logs. Users can seamlessly and irrefutably prove the exact moment data existed for legal, compliance and business purposes.

Proof of integrity

When mathematical truth replaces trust

Having the ability to demonstrate that data has not been tampered with is crucial for both individuals and businesses.
We do this by using cryptographic identifiers that irrefutably represent your data, and we store them timestamped in a database (the Bitcoin blockchain) that nobody - not even us - can change.

Proof of receipt

Make Gmail independently verifiable

Prove that someone has received and opened your emails with clear and unmodifiable records.