binlist.net is a public web service for looking up credit and debit card metadata.
The first 6 or 8 digits of a payment card number (credit cards, debit cards, etc.) are known as the Issuer Identification Numbers (IIN), previously known as Bank Identification Number (BIN). These identify the institution that issued the card to the card holder.
Requests are throttled at 10 per minute with a burst allowance of 10. If you hit the speed limit the service will return a 429 http status code.
An alternative to Twitter's verified program powered by Keybase.
Proven is a browser extension that adds badges like for keybase, github, etc next to users names like Twitter's verified badge but based what accounts the user has posted proofs for Keybase. See the screenshot for what it looks like.
In addition to twitter, it adds badges on Hacker News too.
Available for Chrome and Firefox.
Homepage for a mobile application that lets you map to and validate Open Streetmaps satellite imint. Part of the Humanitarian Open Streetmap project.
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