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  2. List of cryptocurrencies - Wikipedia

    en.wikipedia.org/wiki/List_of_cryptocurrencies

    One of the first cryptocurrencies to use scrypt as a hashing algorithm. 2011 Namecoin: NMC Vincent Durham [11] [12] SHA-256d: C++ [13] PoW: Also acts as an alternative, decentralized DNS. 2012 Peercoin: PPC Sunny King (pseudonym) [citation needed] SHA-256d [citation needed] C++ [14] PoW & PoS: The first cryptocurrency to use both PoW and PoS ...

  3. Cryptocurrency - Wikipedia

    en.wikipedia.org/wiki/Cryptocurrency

    These methods range from using paper wallets (which are public, private, or seed keys written on paper), to using hardware wallets (which are hardware to store your wallet information), to a digital wallet (which is a computer with software hosting your wallet information), to hosting your wallet using an exchange where cryptocurrency is traded ...

  4. Currency detector - Wikipedia

    en.wikipedia.org/wiki/Currency_detector

    A currency detector or currency validator is a device that determines whether notes or coins are genuine or counterfeit.These devices are used in a wide range of automated machines, such as retail kiosks, supermarket self checkout machines, arcade gaming machines, payphones, launderette washing machines, car park ticket machines, automatic fare collection machines, public transport ticket ...

  5. Challenge coin - Wikipedia

    en.wikipedia.org/wiki/Challenge_coin

    Original United States Air Force Airman's coin. The front of a U.S. Marine Corps birthday ball medallion Huguenot méreau used as a challenge coin during 17th century Protestant persecution in France. A challenge coin is a small coin or medallion, bearing an organization's insignia or emblem and carried by the organization's members ...

  6. Token coin - Wikipedia

    en.wikipedia.org/wiki/Token_coin

    A legal tender coin is issued by a governmental authority and is freely exchangeable for goods. A token coin has a narrower utility and is issued by a private entity. In many instances, token coins have become obsolete due to the use of cash, payment cards, stored value cards or other electronic transactions.

  7. Pastebin - Wikipedia

    en.wikipedia.org/wiki/Pastebin

    The most famous pastebin is the eponymous pastebin.com. [citation needed] Other sites with the same functionality have appeared, and several open source pastebin scripts are available. Pastebins may allow commenting where readers can post feedback directly on the page. GitHub Gists are a type of pastebin with version control. [citation needed]

  8. List of Chinese cash coins by inscription - Wikipedia

    en.wikipedia.org/wiki/List_of_Chinese_cash_coins...

    The cash coins of the Song dynasty are notable in the aspect that many cash coins of the same era that use the same inscription and have the same nominal value come in multiple Chinese calligraphic fonts. Many Emperors of the Song dynasty personally wrote the calligraphy to be inscribed on the cash coin.

  9. List of most-downloaded Google Play applications - Wikipedia

    en.wikipedia.org/wiki/List_of_most-downloaded...

    The 500-million download threshold for free applications has been established to maintain the list's manageability and focus on the most widely distributed apps. It's worth noting that many of the applications in this list are distributed pre-installed on top-selling Android devices [ 2 ] and may be considered bloatware by some people because ...