Computer server for documenting the creation and operation of blockchain-based and cryptographic financial instruments or cryptocurrencies; Computer server for verifying blockchain transactions; computer server for supporting an on-line community engaged in trading or exchanging digital currency or digital tokens

Computer server for documenting the creation and operation of blockchain-based and cryptographic financial instruments and cryptocurrencies; Computer server for verifying blockchain transactions; computer server for supporting an on-line community engaged in trading and exchanging digital currency and digital tokens