C E R T E L OProof of Existence
About

What is CERTELO?

CERTELO provides proof of existence: a timestamped, blockchain-verified record that your document existed at a specific moment in time. This can support patent applications, copyright claims, and prior art documentation.

Unlike traditional notarization, CERTELO never receives your file. We fingerprint it entirely in your browser using SHA-256, then record that fingerprint on the Electra Protocol blockchain, a public, decentralized network confirmed by hundreds of independent nodes worldwide.

Even if CERTELO disappeared tomorrow, your certificates would remain verifiable forever. Anyone can verify your certificate using just the SHA-256 hash; no account or service required.

Built on Electra Protocol (XEP)

Company information

CERTELO is operated by EVOBLOX LTD, a private limited company registered in England and Wales.

Company number 16253695.

Registered office: 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom.
Visit EVOBLOXView EVOBLOX LTD on Companies House

How we prepare our articles

Certelo Blog articles are produced by the Certelo team members and then enhanced and spell checked with assistance of AI. We publish them under the Certelo name.

Our articles explain the service and its limits. They are not legal advice. A blockchain timestamp does not by itself prove authorship, ownership or a legal right, but it does provide evidence that a matching document existed by the time of certification.

Found an error? Email hello@certelo.io with the article link and the correction.

Partnerships

We work with partners who help innovators protect ideas and build new products.

Patai GmbH

Finding the right patent attorney for your invention

Patai.ch is a Switzerland-based company dedicated to providing inventors with rapid, comprehensive feedback on their ideas from certified patent attorneys. Upon receiving an invention disclosure, Patai leverages a vast network of specialists across various fields and regions. These experts evaluate the invention and provide cost estimates for IP protection, empowering inventors to make an informed, data-driven decision when selecting the ideal patent attorney for their project.

Visit Patai GmbH

Surselva Impact Lab

Startups. Innovation. Arts. New Work.

Startups. Innovation. Arts. New Work. Löwenberg is home to the Surselva Impact Lab, a vibrant community fostering Swiss startups, creative innovation, and the future of work. Evoblox.io and Patai.ch are members of the Löwenberg community. The platform brought us together and inspired us for CERTELO.

Visit Surselva Impact Lab

Contact

Questions about CERTELO? Send us a message.

We use these details only to answer your message. It is sent through our email provider to hello@certelo.io. We make no separate Certelo database copy. We keep it only as long as needed to answer and meet legal duties. Contact hello@certelo.io to ask for access or deletion.

Emailhello@certelo.io
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