Before a block can be finalized, meaning creating the block and its header structure, designated participants (sometimes called miners, forgers, or endorsers) in the peer-to-peer network need to approve the transactions, for example, by solving a mathematical problem in the case of Bitcoin. This answer, an arbitrary integer called a nonce, is then distributed to other participants that validate the answer. To understand the nonce, let's look at the following example. Let's say that we have a JSON payload of a transport order:
{ "transportOrder": { "shippingDate": "2017-7-31T18:00:34.011Z", "originWarehouse": 12, "destStore": 3, "products": [{ "eanCode": "8806088280486", "productName": "Samsung UE40K5600", "productCode": "UE40K5600AWXXN", ...
