Your digital notary.
Secure the authenticity of your digital assets today. For free.
cronStamp inserts your document's fingerprint into the blockchain providing an immutable and independently verifiable record of existence.
Timestamp documents
- This records existence of your document on the blockchain in a decentralized and immutable manner
- You submit the fingerprint (hash) of your document and receive a certificate file in return
- Choose from multiple blockchains
Verify documents
- Anytime later you can use the certificate to verify whether your document was altered (accidentally or unauthorized)
- Verification does not rely on cronstamp and can be performed by yourself
Copyright Protection
Defend your intellectual property with an undeniable proof of originality and authorship against unauthorized use and infringement.
Auditing & Compliance
Timestamp critical documents and logs to provide verifiable proof of data integrity, ensuring regulatory compliance and making your audits more efficient and trustworthy.
News Timestamp Verification
Timestamp news articles, proving to readers that content has not been altered after publication. This enhances trust and credibility, ensuring integrity of news in an era of misinformation.
Data Storage Integrity
Tamperproof your data and backups stored in untrusted locations, such as the cloud, by detecting unauthorised or accidental modifications of your data.
Online Content Originality
Prove originality of your published work as a blogger, film maker, researcher, artist, or content creator.
Surveillance & Access Control
Provide reliable evidence for security audits and investigations by tamperproofing surveillance videos and access logs for your critical infrastructure or IT systems.