Google Play Music. Google Play Music â formerly Google Music â is a completely free service that allows you to upload up to 50,000 songs and stream them from anywhere. Google offers the most generous free option by far. Just download the Google Music Manager application for Windows or Mac, install it, and sign in with your Google account.
The Transactions. January 12, 2009: It all had to start somewhere. It happened at block height 170, the very first bitcoin transaction ever. This transaction was between the late Hal Finney and Satoshi Nakamoto.
Because there is a reward of brand new bitcoins for solving each block, every block also contains a record of which Bitcoin addresses or scripts are entitled to receive the reward. This record is known as a generation transaction, or a coinbase transaction, and is always the first transaction appearing in every block. The number of Bitcoins generated per block starts at 50 and is halved every 210,000 blocks (about four years). Bitcoin transactions are broadcast to the network by the sender, and all peers trying to solve blocks collect the transaction records and add them to the block they are working to solve.