BlkSeal™ helps people, applications, AI agents, and automated workflows prove where content came from, when it was created, whether it changed, and whether it should still be trusted.
Use it to add verifiable integrity to files, AI responses, API outputs, documents, reports, media, and other digital assets.
Powered by BlkBolt™, lyfe.ninja's model-based encoding technology.
Show that content came from your application, workflow, AI agent, organization, or account.
Verify whether signed content still matches the original, or whether it has been modified, replaced, or tampered with.
Tie signed content back to a valid signing authority so teams can verify who or what produced it, when it was created, and whether that authority is still valid.
Sign first-party or third-party content that you created, reviewed, accepted, approved, distributed, or want others to trust.
And when trust changes, revoke the signing authority behind it.
Create signatures for text, files, AI responses, API outputs, reports, media, and other digital content.
Send content and signatures through your existing website, application, API, workflow, or publishing process.
Allow users, customers, applications, or third parties to confirm that content still matches what was signed.
Sign AI-generated responses before delivery so users and applications can verify that the displayed content came from the intended agent and has not been modified.
Add integrity checks to API responses, customer messages, generated files, notifications, exports, and high-impact automated workflows.
Sign files, reports, exports, datasets, or other shared materials so recipients can verify what you provided and whether it still matches the original.
Open the live chat experience and see BlkSeal sign AI-generated responses, then verify them directly in the browser.
Get hands-on with the core signing technology. Create a model-based signature, verify the result, and revoke signing authority to see how BlkSeal manages trust over time.
Review the integration guide for signing and verifying content, adding browser verification, and more.
Already have signed content? Use the public tools to verify content or inspect a signature.
Try it for free, explore how it works, or contact us about applying verifiable content integrity to your application, workflow, or platform.
