[

{

"currency": "BTC",

"open_available": "17032187.0",

"open_max": "21000000.0",

"open_timestamp": "2018-05-14T00:04:31Z",

"close_available": "17052037.0",

"close_max": "21000000.0",

"close_timestamp": "2018-05-24T14:19:34Z"

}

]