Very useful… To check if a foursquare badge is active, go to Twitter, then search for the badge’s official name. Or to be more specific add the keywords “unlocked” “badge”. Check the result(s)’ time, if relatively recent, then the badge is active. If last result is 3 months or older, then most probably its retired (moreover, if no result). ex: search for “unlocked RadioShack Holiday Hero badge”Read More →

List of badges, and how I unlocked them. post history: 06/04/2011 started Badges are sorted according to time unlocked, starting with newest. PEOPLE VIP – follow People, check-in (3): https://foursquare.com/venue/178473 https://foursquare.com/venue/50328 https://foursquare.com/venue/159735 https://foursquare.com/venue/41209 (got it after 4) WSJ Banker – follow WSJ, check-in (3): https://foursquare.com/venue/107230 https://foursquare.com/venue/74363 https://foursquare.com/venue/128209 (check into 3 venues in the financial district of NY) Warhol – check-in 10 times at venues categorized “Art Gallery”. got it here https://foursquare.com/venue/74363 WSJ Urban Adventurer – follow foursquare.com/wsj, check-in (5): https://foursquare.com/venue/638031 https://foursquare.com/venue/2129222 https://foursquare.com/venue/8093274 https://foursquare.com/venue/4812 https://foursquare.com/venue/43623 (check into a venue in each of the 5 boroughs of NY) PEOPLE Hot Spot – follow People, got it hereRead More →

Audrey C. Garais and Gabrielle Ira M. Tan. Verifying Privacy-Type Properties of an Electronic Voting Protocol that uses Identity Based Cryptography. Online Appendix: A. Sequence Diagram of IBC Protocol B. Proof of Correctness Run Through C. Reductions for Vote-Privacy Proof D. Reductions for Receipt-Freeness Proof E. Reductions for Coercion-Resistance ProofRead More →