Unspent Transaction Outputs (UTXO)

Bitcoin and many protocols based on it stores its data about transactions and user balances in the form of unspent transaction outputs: a list of “unspent” Bitcoin amounts that have been sent to a user but not yet sent from him/her. The sum of these outputs is the user’s total balance. On the blockchain, they […]


Zcash: a first look at mining

Zcash launched on Friday, October 28th. Mining for ZEC started low but over the weekend, drew mining power away from ETH and toward ZEC. Nonetheless, it does not appear to have induced significant amounts of net new mining activity.