provable

cryptographic notarization at a global scale, for any digital actions.

The right to evidence must be a human right.

Proofs are non-political, non-biased, and immune to manipulation by wealth or power. Proofs will become more important than money.

Provable Tools

Provable Form

Browser extension for Chrome that creates a cryptographic timestamped proof of submitting an online form. Your data remains private. We do not store it.

Chrome Web Store →

Provable Web

Browser extension for Chrome that creates a cryptographic timestamped proof of a web page. From HTML, to HTTP requests, to browser extension scripts loaded in the page. Your data remains private.

Chrome Web Store →

Provable Email

Notarize your emails: add kayros1@dmail.provable.dev as To, Cc or Bcc and you will receive a cryptographic proof. Your data remains private. We do not store your email message.

Provable SDK

TypeScript, Python, Golang packages for adding cryptographic notarization to your critical APIs.

SDK →

Provable Files

A secure, fully notarized folder that captures any file change. Compatible with Google Drive. Contact us for early testing.

Kayros Indexer

Our >65k TPS indexer can record and timestamp any digital action in a fully anonymized way, allowing you to have notarized private proofs of digital actions. Internal testing (ver.2): 1 mil TPS possible on one level. Kayros can be multi-level, reaching global scale.

Learn More →

Provable Email Forwarding

A new email forwarding protocol that authenticates the original email and the email chain. Contact us for integrating it with your tools.

View Documentation →

The most expressive WASM blockchain tech

Multi VM, language-agnostic, general & domain-specific language interpreters, variety of host APIs.

View Documentation →

Coming Soon

Provable Wallet

Your personal digital notary for the AI era. Encrypted storage for your digital proofs. Notarized summaries of private proofs: show them in public without losing privacy!

And much more.

Timestamped Media

Timestamp images and videos with our Kayros indexer. Demo: "Make Proofs not War"

Watch Older Demo →

We are building these tools self-funded. We believe that every human must have a right to evidence, and we offer proof creation as a free service. Features that require storage and more complex computation will require payment.

If you are fighting a proof war (journalist, activist, researcher, citizen, etc.), we want to know your specific needs. Let's work together and build the digital proof layer of society. Contact us: contact@mail.provable.dev