Signing
Your signature, checkable.
Praxamark™ signs what you post in public, so anyone can check it came from you and was not changed by a single character. Signing comes with Praxamark Clip and Praxamark Atlas.
Why it needs a home
Your public key lives at a web address.
To check your signature, others need your public key, and it has to live at a web address. If you have your own domain, it can live there. If not, we host it for you, at no extra cost, at praxamark.page/<you>.
People’s pages live on a domain of their own, praxamark.page, kept apart from praxamark.com: your page is yours, and we host it without vouching for it.
Praxamark offers this in its first run (the step Make your signature checkable, after Seal your data) and in Settings → My signing.
Your page
A name, a line, links and a photo, all optional. The photo’s location and camera details are removed before it’s published.
Your key stays with you
Only the public half of your key is published. The private key never leaves your browser.
Leave any time
Close your page, and what you signed still checks. Or remove everything.
Honest about what is proven
We host; we don’t vouch.
Every hosted page says Self-described. It proves your posts were signed by your key. It does not prove who you are, and we don’t claim it does. That’s the point: a reader sees exactly what has been proven and nothing more.
If a page breaks the rules, report it. The Terms of Use and Privacy statement each have a section on hosted identities: Terms of Use · Privacy statement.
Under the hood
The three kinds of DID Praxamark uses
A DID (decentralized identifier) is a name for a key that anyone can check. Praxamark uses three kinds, each for its own job.
did:key: a key that is its own name
Made on your computer, no website needed. Used where no one needs to look you up: a request you sign, a web space’s key, a research id. Checkable, but it says nothing about who you are or where to find more.
did:web: your name at a web address
Readers fetch your public key from that address (praxamark.page/you, or your own domain). It ties your signatures to a place you control, or that we host for you.
did:webvh: a did:web with a public logbook
Every change of key is logged and signed, so even the host cannot swap your key unseen, and you can move to another host provably. Used for web spaces now, and coming to hosted identities.
Each is a standard (W3C and the Decentralized Identity Foundation); none needs Praxamark to check.
Try it
See a signature checked.
The signing simulation lets you sign a post, check it as a reader would, and watch the copycat, the impostor and the forger get caught. Nothing to install.