You can instantly send Bitcoin / Litecoin or some other coins to us. Cryptocurrency will be converted to hryvnia and then will be used for Maidan needs directly. All transactions are posted publicly (here and here), and a trusted person will report expenditures.

(Upd 17 Mar) You can help to the Ukrainian Military forces to stand against Putin's invasion.

Official fund for gathering help from all the citizens of Ukraine described here.

I will convert cryptocurrency to hryvnia and transfer directly to this official found.

BTC — 1MvkidNwrEga5Q6XXeD8ksGrZ1WzMo4qbW

LTC — LTCXhrVXdVwgnpRz68D8mGFjiGmKbxK2Gk

Some other cryptocurrencies:

Dogecoin — DMPm4DQ9CNJ9Hs4v3cW3gZvvuAbTX4pa3y (Transactions and QR code)

Bitcoin/Litecoin Expenditures Report (15 Mar)