<p>I have more than one OpenID as I have tried out numerous.  As people take up OpenID different suppliers are going to emerge I may want to switch provinders.  As all IDs are me, and all are authenticated against the same email address, shouldn't I be able to log into stack overflow with any of them and be able to hit the same account?</p>

[{'answer_id': 4777, 'author': 'Otto', 'author_id': 519, 'author_profile': 'https://Stackoverflow.com/users/519', 'pm_score': 6, 'selected': True, 'text': '<p>I think each site that implements OpenID would have to build their software to allow multiple entries for your OpenID credentials.  However, just because a site doesn\'t allow you to create multiple entries doesn\'t mean you can\'t swap out OpenID suppliers.</p>\n\n<h2>How to turn your blog into an OpenID</h2>\n\n<p>STEP 1: Get an OpenID. There a lots of servers and services out there you can use. I use <a href="http://www.myopenid.com" rel="nofollow noreferrer">http://www.myopenid.com</a></p>\n\n<p>STEP 2: Add these two lines to your blog\'s main template in-between the <code>&lt;HEAD&gt;&lt;/HEAD&gt;</code> tags at the top of your template. Most all blog engines support editing your template so this should be an easy and very possible thing to do.</p>\n\n<p>Example:</p>\n\n<pre>\n&lt;link rel="openid.server" href="http://www.myopenid.com/server" /&gt;  \n&lt;link rel="openid.delegate" href=http://YOURUSERNAME.myopenid.com/ /&gt;\n</pre>\n\n<p>This will let you use your domain/blog  as your OpenID.</p>\n\n<p>Credits to <a href="http://www.hanselman.com/blog/TheWeeklySourceCode25OpenIDEdition.aspx" rel="nofollow noreferrer">Scott Hanselman</a> and <a href="http://simonwillison.net/2006/Dec/19/openid/" rel="nofollow noreferrer">Simon Willison</a> for these simple instructions.</p>\n\n<h2>Switch Your Supplier</h2>\n\n<p>Now that your OpenID points to your blog, you can update your link rel href\'s to point to a new supplier and all the places that you\'ve tied your blog\'s OpenID will use the new supplier.</p>\n'}, {'answer_id': 4854, 'author': 'Xetius', 'author_id': 274, 'author_profile': 'https://Stackoverflow.com/users/274', 'pm_score': 2, 'selected': False, 'text': "<blockquote>\n  <p>@prakesh</p>\n  \n  <p>As long as you associate all of them\n  to the same email address, i would\n  think it would lead you to same\n  account.</p>\n  \n  <p>But whats your experience?</p>\n</blockquote>\n\n<p>When I tried it out I got a whole new account with 0 rep and no steenkin badges. So at the moment SO does not allow multiple OpenID's to be associated with the one account</p>\n"}, {'answer_id': 34867, 'author': 'Mike Heinz', 'author_id': 1565, 'author_profile': 'https://Stackoverflow.com/users/1565', 'pm_score': 0, 'selected': False, 'text': "<p>Doesn't using multiple open-id providers sort of undermine the point of open id?</p>\n"}, {'answer_id': 35287, 'author': 'John Millikin', 'author_id': 3560, 'author_profile': 'https://Stackoverflow.com/users/3560', 'pm_score': 2, 'selected': False, 'text': "<blockquote>\n  <p>Doesn't using multiple open-id providers sort of undermine the point of open id?</p>\n</blockquote>\n\n<p>No. Say you are using a Yahoo OpenID, but you decide to move to Google instead. Multiple OpenIDs per account allows you to associate your account with the Google OpenID, then deauthorize the Yahoo OpenID.</p>\n"}, {'answer_id': 112662, 'author': 'Troels Thomsen', 'author_id': 20138, 'author_profile': 'https://Stackoverflow.com/users/20138', 'pm_score': 3, 'selected': False, 'text': '<p>In addition to the meta tag sample by Otto, you should be aware whether your provider supports OpenID 2.0 (there are numerous improvements). If it does use meta tags as the following:</p>\n\n<pre><code>&lt;link rel="openid2.provider" href="http://www.loginbuzz.com/provider.axd" /&gt;\n&lt;link rel="openid2.local_id" href="http://example.loginbuzz.com/" /&gt;\n&lt;link rel="openid.server" href="http://www.loginbuzz.com/provider.axd" /&gt;\n&lt;link rel="openid.delegate" href="http://example.loginbuzz.com/" /&gt;\n</code></pre>\n\n<p>A good idea would also be to use secure links, but this could limit some relying parties from signing in. This could however be solved by providing a <a href="http://en.wikipedia.org/wiki/XRDS" rel="nofollow noreferrer" title="XRDS on Wikipedia">XRDS document</a>.</p>\n\n<p>The really neat thing about XRDS is that you are able to specify multiple providers in this document. Say you have a bunch of different accounts all with different providers supporting different extensions. The relying party are then able to select the best match by itself.\nIn the XRDS document you could also specify multiple URLs for each service, so that https is used when appropriate.</p>\n\n<p>I would also recommend buying an <a href="http://www.inames.net/personal.html" rel="nofollow noreferrer" title="More on personal i-names">i-name</a> as it by design is more secure (the canonical ID - the i-number - associated with an i-name belongs to you even if the i-name expires).</p>\n'}, {'answer_id': 118176, 'author': 'Community', 'author_id': -1, 'author_profile': 'https://Stackoverflow.com/users/-1', 'pm_score': 0, 'selected': False, 'text': '<p>The key here is to not change identities, ever.\nChange providers, but not identities. (this is like real life)</p>\n\n<p>So new users to OpenID should first consider what their identity <em>could</em> be.</p>\n\n<p>Users that already have some kind of website they own should choose this URL and users without a website have these options:</p>\n\n<ul>\n<li>Get something like a blog to get a URL</li>\n<li>Buy an i-name (or a domain name)</li>\n<li>or use an identity provider supplied URL</li>\n</ul>\n\n<p>In the case of the identity provider supplied URL, users need to be aware that if in the future they choose to delegate or change identities in some way that its essentially a new identity and that multiple identity support with RPs (and OPs) is limited (required usually to re-associate a local account on an RP site to a different OpenID identity).</p>\n'}]
['https://Stackoverflow.com/questions/4661', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/274/']