Blockchain : The X-shape on the watch case is dedicated to #Bitcoin (XBT) & it’s the basis of MasterBlock
The X-shape on the watch case is dedicated to #Bitcoin (XBT) & it’s the basis of [MasterBlock](https://www.masterblock.ch/)
[X-shape](https://i.redd.it/thhz3b0861k11.jpg)
What is the Blockchain?
A block chain is a transaction database shared by all nodes participating in a system based on the Bitcoin protocol. A full copy of a currency’s block chain contains every transaction ever executed in the currency. With this information, one can find out how much value belonged to each address at any point in history.
Author: MasterBlock
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