In January 2015, the company received a US$75 million investment, led by Draper Fisher Jurvetson, the New York Stock Exchange, USAA, and several banks. Later in January, the company launched a U.S.-based bitcoin exchange for professional traders called Coinbase Exchange. Coinbase began to offer services in Canada in 2015, but in July 2016, Coinbase announced it would halt services in August after the closure of their Canadian online payments service provider Vogogo.
取引は簿記上，仕訳を経て勘定口座 (簿記計算の単位) に記録されるが，元帳はこの勘定口座を全部集成したもので，本来の簿記計算に直接関係のない仕訳帳や日記帳などに対応する会計帳簿の中心的存在である。元帳には企業のすべての財産，資本の増減が勘定科目に分解されて日々記入されるので，元帳を見れば企業の財産の状態，営業成績を概観することができ，また決算日など特定時点で締切れば貸借対照表や損益計算書などの財務諸表の作成が可能である。したがって元帳は簿記計算のうえで仕訳帳による原始記録から決算財務諸表という企業活動の結論を導き出すための不可欠のものといえる。しかし経営規模の拡大や取引の増大に伴う会計処理業務の複雑化から，会計帳簿の分化，再編が必要とされてきたため，元帳も個々の勘定口座に内訳を設けた多桁式のものや，本社関係の総勘定元帳と工場関係の工場元帳に分離されるなど次第に変化してきている。
Preparations for the launch of Bitcoin (BTC) futures on Bakkt are on track. While market participants were excited before the launch of CME group’s futures trading at the end of 2017, the current launch is being approached with caution. Bitcoin’s volatility continues to drop, which shows that both bulls and bears are not taking large directional bets.
In the case of Bitcoin, miners run computer programs to verify the data that creates a complete transaction history of all Bitcoin. A technology known as the blockchain, which is used to create irreversible and traceable transactions, makes the process of verification possible. Once a miner has verified the data (which comes in a block, hence, blockchain), they are rewarded with some amount of digital currency, the same currency for which they were verifying the transaction history. So mining Bitcoin, for example, would earn you Bitcoin.
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