Thanks a lot, still, worth it to remind again to log out before you send anything to a real human!

So the buyer proved they had actually made the bank transfer using TLSnotary also?

And seller was able to prove he hadn't received (yet) because bank had lost the payment.

Interesting that a bitcoin-centric system for removing trust has been used to prove legacy banking error ... good work.

Feel free to read the latest blog post and try out the new version (only proof of concept, but functional):

https://tlsnotary.org/wp/?p=27

Simple explanation: audit a page and get a .audit file. You can give it an auditor later - where 'auditor' means anyone . It's transferrable (it's as if the server had signed the page with a digital signature).
You perform the audit with a remote 'notary server', which knows basically nothing: there is no login, no credentials, you don't give the notary server either your html or the encrypted version of your html. It sees nothing except the server pubkey. It just provides you with some preliminary random secrets and then signs that you received the completed version of the secrets after you committed to a hash of your encrypted data.

Well, a little more detail in the blog post above.

Note that although there isn't much going on at the main repo https://github.com/tlsnotary/tlsnotary at the moment, there is a lot of work being done in other places.

In a little while I might throw up a couple of .audit files so others can look at them (you can just run the auditor script locally to verify a .audit file's validity).

https://www.tlsnotary.org/pagesigner.html

PageSigner is a drastic simplification of the user experience of TLSNotary. You can get a file which proves you visited a webpage with one click in Firefox. No need for Python, key management, or delays (it takes a few seconds). You can pass the file to an auditor at any later date and they can verify it. Watch the walkthrough video on the above page and let us know what you think.

There's a lot more to say, but feel free to give it a try and get back to us with any questions.

Chrome is now supported (same link as before, short walkthrough for installation provided there; Firefox is a one (ish) click install, but Chrome requires pushing a few buttons in the correct sequence )

Browserless pagesigner: https://github.com/tlsnotary/pagesigner-browserless

This allows you to notarize a page from the command line, enabling automation. This version was created in response to someone who's creating an oracle for real world data; with this, they can use pagesigner to query an API (with their credentials) and generate a proof of data recorded by an authoritative website.

See the README for usage notes.

@Sylz, I'll need much more context for what you are asking, but the short answer is
you can use tlsnotary-based PageSigner to create a transferable proof of e.g. blockchain.info's webpage showing the payment/transaction.