OpenBSD tool to sign and verify signatures on files. Portable version which uses libbsd.

ProofMode is an open-source project developed by Guardian Project, Okthanks and WITNESS.

We believe in a future, where every camera will have a “Proof Mode” that can be enabled and every viewer an ability to verify-then-trust what they are seeing. ProofMode is a system that enables authentication and verification of multimedia content, particularly captured on a smartphone, from point of capture at the source to viewing by a recipient. It utilizes enhanced sensor-driven metadata, hardware fingerprinting, cryptographic signing, and third-party notaries to enable a pseudonymous, decentralized approach to the need for chain-of-custody and “proof” by both activists and everyday people alike.

Mostly trustworthy paths to self hosted linux userspace.

This project contains tidy and well documented build scripts that make few assumptions about your host operating system.

A process and utilities for bootstrapping a Linux userspace from a minimal set of tools and build environment in such a way that it is more likely to detect a "trusting trust" code recognition and injection attack.

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.