Trusted URLs via Cryptographic Signatures

Trusted URLs via Cryptographic Signatures(blog.certisfy.com)

9 points by Edmond 2 hours ago | 9 comments

tgma 15 minutes ago |

Google AMP had the concept of Signed Exchanges so that you can host content on a third party server while proving its integrity https://developer.chrome.com/blog/signed-exchanges

Unfortunately, AMP itself was controversial and the system was not really adopted elsewhere, but it is something.

Edmond 2 hours ago |

SDK: https://github.com/CipherTrustee/certisfy-js

Web of trust use case example: https://bsky.app/profile/bitlooter.bsky.social

Experimenting with Keybase key holders as CAs:

https://www.reddit.com/r/Keybase/comments/1q5ys71/using_keyb...

Cryptographic Implementation of Exclusivity Agreements: https://github.com/CipherTrustee/certisfy-claim-recipes/tree...

Build Your Own Trust Chain: https://blog.certisfy.com/2026/04/build-your-own-trust-chain...

Some other examples of how you could leverage it: https://blog.certisfy.com/

Happy to answer questions.

AtHeartEngineer 1 hour ago | |

Just emailed you, I'm working on something similar https://github.com/MinistryofMany

it's basically an OIDC provider as an identity wallet using verifiable credentials, but I've got a "share link" system built in where you can share specific credentials/proofs with others.

canadiantim 1 hour ago | |

How do you foresee this being implemented or made popularly available?

pluto_modadic 1 hour ago | |

what was the hardest part about this project?

Edmond 1 hour ago | | |

Everything :)

But I wouldn't characterize it in terms of being hard.

It's been a work in progress for many years,... so more of a problem solving and exploratory endeavor.

Retr0id 39 minutes ago |

What happens if the destination/contents of the URL changes after I sign it?

mahemm 1 hour ago |

How does this differ from e.g. S3 pre-signed URLs?

westurner 48 minutes ago |

How to implement signed URLs with W3C DID keys and W3C Verifiable Credentials?