[Ssc-dev] BTProof site

[Nathan of Guardian]

On Thu, Mar 26, 2015, at 03:27 PM, Harlo Holmes wrote:
> proof of existence's API is http?  it looks very simple, though.

True, not such a good idea... I think we'd want to run our own instance
of this, and somehow tune it or lock it down for media files.


> 
> On Wed, Mar 25, 2015 at 10:12 PM, Nathan of Guardian <
> nathan at guardianproject.info> wrote:
> 
> > I just found another: http://www.proofofexistence.com/about
> >
> > What is proof of existence?
> > Use our service to anonymously and securely store an online distributed
> > proof of existence for any document. Your documents are NOT stored in
> > our database or in the bitcoin blockchain, so you don't have to worry
> > about your data being accessed by others.
> >
> > All we store is a cryptographic digest of the file, linked to the time
> > in which you submitted the document. In this way, you can later certify
> > that the data existed at that time. This is the first online service
> > allowing you to publicly prove that you have certain information without
> > revealing the data or yourself, with a decentralized certification based
> > on the bitcoin network.
> >
> > The key advantages are anonymity, privacy, and getting a decentralized
> > proof which can't be erased or modified by anyone (third parties or
> > governments). Your document's existence is permanently validated by the
> > blockchain even if this site is compromised or down, so you don't depend
> > or need to trust any central authority. All previous data timestamping
> > solutions lack this freedom.
> >
> > On Wed, Mar 25, 2015, at 10:02 PM, Nathan of Guardian wrote:
> > > This site sums up a lot of what we've been thinking about. It isn't a
> > > notary itself though, and it still requires the user to have a bitcoin
> > > wallet with money in it, and know how to use it.
> > >
> > > Still this is a pretty great service.
> > >
> > > ***
> > > BTProof
> > > Trusted timestamping on the Bitcoin blockchain
> > > https://www.btproof.com/
> > >
> > > What is trusted timestamping?
> > > Trusted timestamping allows to prove you held a document, some
> > > information or a file at some specific point in time, in a way that
> > > can't be forged. Read more at Wikipedia.
> > >
> > > What is it good for?
> > > Before signing an NDA, you can keep a trusted proof of the knowledge you
> > > had in that field prior to to signing it.
> > > You can prove you developed a specific revesion of your software in a
> > > specific point in time by timestamping the hash of your revision tree.
> > > With Git, its as simple as timestamping the current commit SHA1.
> > > Before sharing your ideas with third parties, you can timestamp the
> > > information you're about to share with them, as well as the fact that
> > > you're sharing it with them, to help resolve possible disputes.
> > > Contracts can be timestamped (along with digital signatures of both
> > > parties) to prove when they were signed.
> > > Musicians and other digital art producers can prove when they created
> > > their work.
> > >
> > > --
> > >   Nathan of Guardian
> > >   nathan at guardianproject.info
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> >   Nathan of Guardian
> >   nathan at guardianproject.info
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-- 
  Nathan of Guardian
  nathan at guardianproject.info