I cannot let http://www.deedbot.org go unmentioned on this thread.

On Friday, May 22, 2015, Jonas Schnelli <dev@jonasschnelli.ch> wrote:

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> > * proof of Bitcoin funds (without revealing public addresses or
> > fund location on the blockchain)
> >
> > * proof of Bitcoin address ownership
> >
> > * proof of Tweet
> >
> > * proof of real estate value
> >
> > * proof of DNS ownership
> >
> > * proof of existence
> >
> > * proof of web page contents
> >
> > * proof of weather conditions
> >
> > The factoids can be recorded on the blockchain (if you pay for the
> > transaction with Bitcoin or PayPal), or they can be part of a free
> > attestation chain that we maintain. The website provides a
> > permanent URL to the factoids it generates; it also provides an
> > X.509 certificate that you can download and keep safe in
> > perpetuity, independent of the website.
>
>
> Hi Emin
>
> This is going into the right direction. Well done!
> The certificates (X.509/p12) are far more enduser-friendly than just a
> normal PoE hash.
>
> Your site needs some UX love and i just tried to OR_RETURN a
> Email-Address-Verification. But after creating a 0.0001 tx and waiting
> for two confirmations it still said that the payment has not yet been
> received. There is probably something broken regarding the bitcoin
> payment verification.
>
> The weather and real estate notarization definitively needs a „US
> only“ badge somewhere.
>
> Two ideas:
> - - Maybe adding a way of decentralize your notary service log via a
> opensource p2p daemon (obviously sensitive data should be somehow
> encrypted)?
> - - Adding a opensource UI app to examine certs (maybe offline capable
> with p2p daemon chain as mentioned above). This could prove
> independence from your website/service.
>
> </jonas>
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